4th World Congress of Chemical Engineering

S T R A T E G I E S 2 0 0 0

Karlsruhe/Germany 16-21 June 1991

P r e p r i n t s II

Sessions 6.1 - 7.7

Session 6.1C a t a l y s i s :an Interface between Chemical Engineering and ChemistryParti:

Organized by B. Delmon Louvain-La-Neuve/B; W. Keim, Aachen/D

TUE 18. 6. Stadthalle F. Weinbrenner Saal

Chairmen: B. Delmon, Louvain-La-Neuve/BW. Keim, Aachen/D

9.00 B. Delmon, Louvain-La-Neuve/BIntroduction

Keynote Lecture

9.20 P. Ratnasamy, Pune/IND; S.K. Bhowmik, 6.1 - 1Vizag/INDThe Albene Process: Chemistry and ChemicalEngineering in its development

Oral Presentations

10.40 R. Dittmeyer, J. Schiebisch, H. Hofmann, 6.1 - 2Erlangen/D; S. Bartsch, Hanau/DInvestigations on the influence of transportlimitations in oxidative coupling of methaneusing a Ce/Li/MgO-catalyst

11.00 L. Lietti, E. Tronconi, P. Eorzatti, Milano/I 6.1 - 3The reaction network of the higher alcoholsynthesis: An integrated approach to the studyof a complex catalytic reaction system

11.45 Poster Discussion Nancv HallePoster No.6.1 -30 - No. 6.1.- 38

Session 6.1 (cont.)

TUE. 18. 6. Stadthalle F. Weinbrenner Saal

Chairmen: B. Delmon, Louvain-La-Neuve/BW. Keim, Aachen/D

Keynote Lecture

14.00 A. Baiker, Ziirich/CH 6.1 - 4New perspectives in the design of solidcatalysts

Oral Presentations

15.00 F. Goudriaan, Amsterdam; H.P, Gal is, Delft; 6.1 - 5F. G. van Dongen, The Hague; M.J. Groeneveld,Amsterdam /NLParallel passage reactor for catalytic denoxing

15.20 R.E. Hayes, Edmonton, Alberta/CDN 6.1 - 6S.T. Kolaczkowski, W.J. Thomas, Bath/UKModeling of a monolith catalytic reactor

16.00 A. Aguinaga, J.M. Asua, M. Montes, 6.1 - 7San Sebastian/EKinetic model for the thiophene poisoning ofnickel catalysts in the benzene hydrogenation

16.20 N. Pernicone, Novara/I 6.1 - 8Catalyst manufacturing from bench scale toindustrial production

16.40 J.M. Arandes, A.T. Aguayo, A.G. Gayubo, 6.1 - 9M. Olazar, J. Bilbao, Bilbao/EDynamic experimentation for the kinetic studyof processes under deactivation and regeneration

17.00 F. Kolenda, C. Hypolite, J.P. Reymond, 6.1 - 10G. Dessalces, P. Trambouze, Vernaison/FStudy of silica-alumina spray-drying

17.20 J.A. Dalmon; C. Mirodatos, Vi1leurbanne/F 6.1 - 11Catalytic membrane reactor: application to finechemical synthesis

17.40 A. Behr, Diisseldorf/D 6.1 - 12Catalyst recycle by two-phase liquid-liquidsystems

18.00 - withdrawn - 6.1 - 13

Session 6.1 (cont.)

Part 2

WED. 19.6. Stadthalle F. Weinbrenner Saal

Chairmen: B. Delmon, Louvain-la-Neuve/BW. Keim, Aachen/D

Keynote Lecture

9.00 M. Guisnet, P. Magnoux, Poitiers/F 6.1 - 14Cocking and deactication of zeolites.Influence of pore structure and ofoperating conditions

Oral Presentations

10.00 G. Emig, 0. Watzenberger, Karlsruhe/D 6.1 - 15D.T. Lynch, Edmonton,AL/CDNDevelopment of kinetic models for the complexdeactivation behaviour of heteropolyacid catalystsin the oxydehydrogenation of isobutyric acid

10.20 Yu. Sh. Matros, Novosibirsk/USSR 6.1 - 16Theory and practice of heterogeneous catalyticreactors: why differ and how to deal with thisproblem

10.40 E. Santacesaria, M. Di Serio, R. Tesser, 6.1 - 17Napoli/IMethanol hydroformilation, an industrialpromising route to acetaldehyde

11.30 Poster Discussion Nancy HallePoster No. 6.1 -39 - No. 6.1 - 75

Session 6.1 (cont.)

WED. 19.6 Stadthalle F. Weinbrenner Saal

Chairmen: B. Delmon, Louvain-La-Neuve/BW. Keim, Aachen/D

Keynote Lectures

14.00 G. Froment, Gent/B 6.1 - 18The kinetic modeling of catalystdeactivation by coke formation

15.00 C. Jiang, D.L. Trimm, M.S. Wainwright 6.1 - 19Kensington, NSW/AUSStudies of the design of a catalytic systemfor the production of hydrogen from methanolat low temperatures

15.20 Ienwhei Chen, Fan-Lun Chen, Taipei/ROC 6.1 - 20A study on resistivity to coke formationof nickel-alumina catalysts

16.00 - withdrawn - 6.1 - 21

16.20 Ph. Zaza, R. Doepper, A. Renken, Lausanne/CH 6.1 - 22Dehydrogenation of methanol to water-freeformaldehyde in a circulating fluidized bed

16.40 L. Tiako Ngandjui, F.C. Thyrion, 6.1 - 23Louvain-La-Neuve/BIsobutene oligomerization over H-mordenite

17.00 H. Verelst, C. Falagiarda, G. Baron, 6.1 - 24Brussels/BEnhancement of reversible reactions by pressureswing adsorption

17.20 D. Reinig, J. Gaube, Darmstadt/D 6.1 - 25Chemical Engineering concepts in selectivehydrogenation of diolefines to monoolefinesover Pd-catalysts

17.40 W. Keim, Aachen/DConclusion

Session 6.1 (cont.)

Discussed Posters Nancy Halle

6.1 - 30 E. Tronconi, Milano; P. Forzatti, St. Malloggi,Pisa/IModeling of monolith SCR reactors

6.1 - 31 D. Honicke, Karlsruhe/DCorrelations between catalytic behaviours andstrutures of niobia supported V-Oj-catalysts

6.1 - 32 H.J. Sloot, G.F. Versteeg, C.A. Smolders,W.P.M. van Swaaij, Twente/NLA non-permselective membrane reactor for theClaus and the denox reaction

6.1 - 33 F. Vigne-Maeder, H. Jobic, P. Gelin, Villeurbanne/FMolecular dynamics, neutron diffusion and transientIsotopic methods for complementary approach to the diffusionin zeolites

6.1 - 34 P. Tsiakaros, C.G. Vayenas, S. Pavlou, X.E. Verykios,Patras/GROptimization, preparation and performance of non-uniformly activated catalyst pellets

6.1 - 35 V.I. Elokhin, A.V. Myshlyavtsev, G.S. Yablonskii,Novosibirsk/USSRKinetic models of surface science for realcatalysis: application to carbon monoxideoxidation reaction

6.1 - 36 A. W. Kaliszak, Warszawa/PLMethod and reactor for investigation of kinetics offast heterogeneous catalytic reactions

6.1 - 37 K. R. Westerterp, Enschede/NLSelective oxidation of ethene to ethylene oxidein a cooled tubular reactor

6.1 - 38 D. Arntz, M. Bauml, Th. Haas, A. Miiller, N. Wiegand,Hanau/DKinetic analysis of technical homogeneously catalysedreaction by in situ NMR measurements

Session 6.1 (cont.)

Part II

WED. 19. 6. Nancy Halle

Discussed Posters

6.1-39 - withdrawn -

6.1 - 40 M. Ehsasi, M. Berdau, K. Christmann, J.H. Block,Berlin/DOscillations of the CO-oxidation on Pd-(llO) singlecrystal surfaces. A study on synergetics

6.1 - 41 A. Muramatsu, H. Sasaki, S. Usui, Sendai/JSynthesis of amorphous Ni-Zn ultrafine alloyparticles in liquid-phase and their catalyticactivity for benzene hydrogenation

6.1 - 42 F. Gottsleben, R. Briisewitz, D. Hesse,Hannover/DCharacterization and practical use ofsupported liquid-phase catalysts

6.1 - 43 K. Hashimoto, T. Masuda, M. Kawano, N. Murakami,Kyoto/JMethod for calculating intracrystallinediffusivities of HZSM-5 zeolite using mole-cular properties and pore structure

6.1 - 44 T. Takahashi, K. Abe, T. Kai, Kagoshima/JPreparation of hydrogenation catalysts fromamorphous Pt-Zr, Pd-Zr and Pd-Zr-Al alloys

6.1 - 45 - withdrawn -

6.1 - 46 0. Francoisse, F.C. Thyrion, Louvain-La-Neuve/BEthyl tert-Butyl Ether (ETBE) liquid-phase synthesis:kinetics and mechanism

6.1 - 47 J.T. Wehrli, D.J. Thomas, M.S. Wainwright,D.L. Trimm, N.W. Cant, Kensington, NSW/AUSA comparative study of the selective hydrogenation ofC~, C, and C. alkynes over Cu/SiO, catalysts

6.1 - 48 J. Schwank, K. Balakrishnan, A. Sachdev,Ann Arbor, MI/USAMicrostructural characterization of Pt-Sn/Al_0,catalysts

6.1 - 49 K. Hjuler, K. Dam-Johansen, Lyngby/DKFlue gas desulphurization by ammonia- a fundamental study of the reaction mechanismand kinetic

6 . 1 - 5 0 - withdrawn -

6.1 - 51 J. Vital, V. Almeida, L.S. Lobo,Monte de Caparica/PKinetic modeling with phase equilibria of thealpha-pinene hydration to terpine in isobutanol-water

6.1 - 52 V.R. Almeida, J. Vital, L.S. Lobo,Monte de Caparica/PKinetics of alpha-pinene low temperature hydra-tion to terpine using non ionic surfactants

6.1 - 53 Z. Gomzi, S. Smolcic, S. Zrncevic, Zagreb/YULiquid phase oxidation of toluene in aceticacid solution

6.1 - 54 Tse-Chuan Chou, Lung-Chyuan Chen,Tainan, Taiwan/ROCCooxidation of propionaldehyde and cyclohexenecatalyzed by the heterogenized-homogeneous co-type resin

6.1 - 55 S.I. Reshetnikov, V.P. Gaevoi, B.S. Balzhinimayev,A.A. Ivanov, Novosibirsk/USSRMathematical modeling and optimization of theSO, oxidation process in a fluidized bed reactortaKing into account catalyst unsteady state

6.1 - 56 N. I. Koltsov, Cheboksary/USSRModelling of critical appearances in COand H~ oxidation reactions on platina metals

6.1 - 57 Gao Buliang, Wang Jinshan, Wang t'ingchun,Zibo Shandong/PRCA kinetic study on single stage mild hydrocrackinq

6 . 1 - 5 8 - withdrawn -

6.1 - 59 A.G. Zwahlen, J.B. Agnew, Adelaide, SA/AUSKinetics of isobutane dehydrogenation using aconcentration-control led internal-recyclereactor

6.1 - 60 W. Spisak, Opole/PL; R. Kusch, Dusseldorf/DApplication of plug and stalactite flowpatterns in methanol synthesis reactor

6.1 - 61 Z. Memedlyaev, M.A. Glikin, B.M. Blokh,A.F. Moisyenko, Sverodonetsk/USSRA catalytic reactor for treatment of gaseffluents of nitric acid units

6.1 - 62 S.I. Kim, S.I. Woo, Seoul/ROKThe effect of modifying alumina with sulfateand phosphate on the catalytic properties ofMo/Al20, in HDS reaction

6.1 - 63 A.S. Nasution, Jakarta Selatan/IndonesiaConversion of N-hexane, methylcyclopentaneand cyclohexane to benzene using mono- andbi-metallic reforming catalysts

6.1 - 64 A. Seidel-Morgenstern, K.-D. Vollgraf, H.ZarmerBerlin; H. Meye,Leuna/DKinetics of the conversion of synthesis gas todimethylether

6.1 - 65 Xien Xu, Weimin Zhang, Yongcai Liu, Weiyi Dong,Tianjin/PRCStudy on synthesis of 2-ethoxyethanol usingcatalytic distillation

6.1 - 66 Y. Koyama, Kawasaki; S. Ohtsu, M. Yoshimori,Yokohama/JPerformance simulation of steam-methanereforming in catalyst packed bed

6.1 - 67 E. Velo, L. Puigjaner, F. RecasensBarcelona/EDirect hydration of iso-butene on commercial-size ion-exchange catalysts

6.1 - 68 P. W. Park, Y. O.J. Park, Pusan/ROKNumerical simulation of time-dependent andheterogeneous model for fixed-bed gas-solid systemsby the finite element method with mixed coordinates

6.1 - 69 S. Ohtsu, M. Yoshimori, Yokohama; Y. Koyama,Kawasaki/JExperimental study on catalytic steam reformingfor fuel cell reformer development

6.1 - 70 J.N. Beltramini, St. Lucia, Queensland/AUS;G.Z. Zhu, Nanchang/PRCThe role of catalyst preparation in the trans-formation of methanol into hydrocarbons onZn-ZSM-5 zeolites

6.1 - 71 S.S. Bhagade, G.D. Nageshwar, Nagpur/INDEsterification catalysed by cation exchangeresin - peroxide

6.1 - 72 L. Manna, S. Sicardi, Torino/IHeterogeneous model for the interpretationof unsteady catalytic chemical reaction

6.1 - 73 J.R. Gonzalez-Velasco, M.A. Gutierrez-Ortiz,J.I. Gutierrez-Ortiz, J.A. Gonzales-MarcosBilbao/EA study on combination of temperature-time andfeedflow-time policies for isothermal fixed bedreactors

6.1 - 74 J.R. Brenner, B.T. Carvill, L.T. Thompson,Ann Arbor, MI/USAModel sulfide cluster derived catalysts:on the promotional effect in hydrotreatmentcatalysis

6.1 - 75 M. A. Gutierrez-Ortiz, J.R. Gonzalez-Velasco,S. Arnaiz, M.P. Gonzalez-Marcos, Bilbao/EPd/Al.O-, Catalysts for the liquid-phase hydrogenationof phenol: activity and selectivity

Session 6.2

Chemical and Catalytic Reaction Engineering

TUE 18. 6 Nancy Halle

Poster Presentations

6.2 - 1 R. Maachi, El-Harrach/DZAdsorption variation of liquid alcohols asmethanol and ethanol on molecular sieves oftype A in functin of their patassium exchange.Kinetic study coadsorption of alcohold in aclosed reactor.

6.2 - 2 T. Hattori, Sh. Kito, H. Niwa, A. Satsuma,Y. Murakami, Nagoya/JExperimental verification of expert systemsapproach to catalyst design -Selection of promoted SnO~ catalyst for oxidativedehydrogenation of ethylbenzene

6.2 - 3 H. Ueda, R. Hashimoto, N. Yoshiba, H. Endo,Chiba/JTechnology for coal-based hydrogen production

6.2 - 4 A.V. Kruglov, S.I. Spivak, Ufa/USSRKinetic constants calculation:New divergence factors, algorithms, non-staticapproaches of uncertainty interval developingand identification of mechanisms of complex chemicalreaction

6.2 - 5 M. Absi-Halabi, A. Stanislaus, H. Al-Zaid,Safat/KT •Minimization of Environmental hazards of spentcatalysts: A process for reclamation of residueshydroprocessing catalysts

6.2 - 6 A. Lakota, J. Levee, Ljubljana/YUGas-liquid mass transfer and hydrodynamicparameters in packed beds with concurrentdownward two-phase flow

6.2 - 7 K. Werner, H. Martin, Karlsruhe/DHeat transfer with and without chemical reactionin a monolithic honeycomb catalyst

6.2 - 8 M.M. Rosenberg, E.B. Brun, L.I. Kheifets,Moscow/USSRA new approach to mass transfer process in thebubble reactor

6.2 - 9 J. Cwalina, Pulawy; A. Jedrzejak, Szczecin/PLHydrogen separation from industrial gas bypressure swing adsorption

6.2 - 10 M. Giulietti, Sao Paulo/BRPotassium sulphate process development

6.2 - 11 M. Mostade, B. Debelle, G. L'Homme, M. Malmendier,J.-P. Pirard, Liege/BUse of the tracer method for the study ofthe underground gasifier at Thulin

6.2 - 12 K. Miura, K. Mae, H. Nakagawa, K. Hashimoto,Kyoto/JQuantitative analysis of hydrogen transferduring the flash hydropyrolysis of coal

6.2 - 13 M.R. Mehandjiev, Varna/BGProcesses of accelerated kinetics by T A PRegularities in chemical engineering

6.2 - 14 R.M. Filho, C. McGreavy, Campinas SP/BRA new design for multitubular reactors

6.2 - 15 P. Cavalieri d'Oro, R. Bagatin, A. Caimi,Bollate, MI/ICaprolactam from Beckmann rearrangement:reaction kinetics and industrial plantsimulation

6.2 - 16 J.L. Rico, P. Rajniak, J. Ilavsky,Bratislava/CSExperimental and mathematical modelingof benzene hydrogenation in a fixebed reactor

6.2 - 17 C. Negro, F. Lopez, Madrid/EPickling kinetics of hot-rolled low-carbon steelin sulfuric and hydrochloric acids

6.2 - 18 S. Zrncevic, Z. Gomzi, H. Meider, D. Plavsic,Zagreb/YUEffect of catalyst pore size on deactivationin benzene hydrogenation

6.2 - 19 S.S. Shepelev, V.D. Sokolovskii, Novosibirsk/USSRThe unoxidative methane pyrolysis. Process conditionsoptimization and initiators application

6.2 - 20 P.K. Dey, New Delhi/INDKinetics of carbon-dioxide gasification ofsaw-dust

6.2 - 21 0. Bermudez Mendizabal, Mexico, O.F./MEXUse of ultrastable shape selective zeolites inthe fluid catalytic process

6.2 - 22 Renjun Zou, Shijiazhuang/PRCProgress in micro-reactors in chemical andcatalytic reaction engineering

6.2 - 23 Rui-sheng Shi, Shijiazhuang, Hebei/PRCAn introduction of resid FCC technologydeveloped in China

6.2 - 24 Jinshan Wang, Xiang-Shan Luan,Zibo Shandong/PRCChina MTBE (Methyl Tert-Butyl-Ether)productiontechnology

6.2 - 25 Jinshan Wang, Xingren Hao, Zongren Yang,Zibo Shandong/PRCNovel MTBE (Methyl Tert-Butyl-Ether) productiontechnology

6.2 - 26 L.N. Koltunova, N.I. Zelentsova, G.A. Nikitina,Moscow/USSRKinetics of CO adsorption on CaA zeolite

6.2 - 27 B.M. Kadenatsi, B.S. Korobskoy, V.I. Sakeev,M.D. Shibanova, Yu.A. Frank, Moscow/USSRCatalysts for total flameless oxidation ofhydrocarbon fuels, motor car prestarting heaterand cataheaters constructed on their basis

6.2 - 28 D.P. Shashkin, O.S. Morozova, P.A. Shiryaev,O.V., Krylov, Moscow/USSRX-ray diffraction in-situ as new method ofthe study the catalysts activation processes

Session 6.3

Metallurgical Industries

THU 20. 6. Konferenz-Haus Saal 1

Chairmen: P. Paschen, Leoben/AG. Hochgesand, Frankfurt am Main/D

Keynote Lecture

14.00 Th.A. Post, Ottobrunn/D; J.Y. Oldshue, 6.3 - 1Rochester, NY/USAFluid mixing in liquid-solid-gas processes:high pressure sulfur oxidation of gold-oreslurries

15.00 Poster Discussion Nancy Halle

6.3 - 10 Y. Konishi, H. Kubo, S. Asai, Osaka/JA kinetic model for the bacterial leachingof zinc sulfide by Thiobacillus ferrooxidans

6.3 - 11 V.E. Ross, J.S.J. van Deventer, Stellenbosch/ZAThe evaluation of flotation froth behaviouron the basis of mass transport phenomena

6.3 - 12 J.E. Lopez, M. Delgado, J.A. Sorrentino,Caracas/YVPlant tests and computer modeling toincrease capacity of flash cooling in interalumina

6.3 - 13 M.E. Fraiz, G. Aiquel, Porto Ordaz/YVR. Craig, Richmond, VA/USAControlled operational transitions inP-19S cells

6.3 - 14 I.V. Solovjev, Yu. M. Kuznetzov, Sverdlovsk/USSRSpontaneous penetration of a solid sphericalparticle into the more dense fluid

6.3 - 15 B.M. Khusid, Minsk/USSRHeat and momentum transfer in two-phasemetal composition with co-existing solid andliquid components

6.3 - 16 T. Akiyama, Jun-ichiro Yagi, Sendai/JExergy and CO- analyses of conventionaland new ironmaking systems

6.3 - 17 E. Kasai, Y. Omori, Sendai/JRelation between void structure and physicalproperties of iron ore sinter cake

6.3 - 18 Tiehan Wang, Ruilin Wang, Jinzhou City/PRCEfforts made for a clean production of metalchromium in Jinzhou ferroalloy works

Session 6.4

Effect of Newly Designed Highly Efficient Mixing

Devices on Product Quality

Workshop: Organised by the EFChE WP Mixing

MON 17.6. Konferenz-Haus Saal 1

Chairmen: I. Fort, Praha/CSK.D. Kipke, Warburg/D

Oral Presentations

14.00 B. Mersmann, R.K. Geisler, Munchen /D 6.4 - 1Determination of the local turbulent energydissipation rates in stirred vessels and itssignificance for different mixing tasks

14.30 J.Y. Oldshue, Rochester, NY/USA 6.4 - 2Fluidfoil impeller performance in biologicalsystems

15.00 F. Rieger, P. Ditl, Praha/CS 6.4 - 3The influence of mixing in a sugar boilingpan on the product quality

15.30 K.J. Carpenter, Manchester/UK 6.4 - 4How good is the link between academic researchand industrial needs and practice ?

16.00 Poster Discussion Nancy Halle

6.4 - 10 J. Moureh, H.C. Boisson, J. Bertrand,Toulouse/FInfluence of the discretized productionterm on the computation of the turbulentflow in a stirred vessel

6.4 - 11 M. Kaminoyama, M. Kamiwano, Yokohama/JNumerical analysis on flow behaviour of ahighly viscous Newtonian fluid with heattransfer in anchor impeller mixer

6.4 - 12 Dai Gance, Dong Shimeng, Shanghai/PRCMixing of two miscible liquids with differentrheological properties in a helical ribbonscrew (HRS) agitator

6.4 - 13 P. Fayolle, J. Bertrand, Toulouse; J.Bousquet,Paris-La Defense/FStudy of power consumption in a spherical vesselagitated by a high speed impeller

6.4 - 14 C. Xuereb, J. Bertrand, J.P. Riba, Toulouse;J. Bousquet, Paris-la-Defense/FDetection of the gas phase into a gas-liquid reactorusing an optic fiber probe. Evolution of the bubblingparameters as a function of the liquid rheology

6.4 - 15 M. Roustan, N. Zaied, D. Auban, Toulouse;J.M. Audic, Le Pecq/FStudy of the dispersion of gases in liquidsin mechanically agitated vessels with axialmobiles

6.4 - 16 Yu-Shu Chen, Dao-Huai Zhang, Guangdong;Da-Ke Wu, Guizhou/PRCA study on heterogeneous mixing fuels andits applications

6.4 - 17 J.B. Fasano, Dayton,OH/USAKenics new static mixer - five times moreefficient than older model

6.4 - 18 C. Gaillard, Isle/Sorgue; D. Chulia, Limoges;C. Jeannin, Grenoble; P. Ozil, Saint-Martin d'Heres/FMicrowave high speed mixer and optimization ofthe granulation process

6.4 - 19 J. A. von Essen, W. Wyszalkovski, Palmyra, PA/USAAvoiding interactive flow problems with multiplehydrofoil mixing impellers

Session 6.5

Quality Assurance Methods

TUE 18. 6. Konzert-Haus Saal C

Keynote Lectures

14.00 G. Kaske, Marl/D 6.5 - 1From quality control to systems of qualityassurance

14.30 M. Friedrich, E.D. Gilles, Stuttgart/D 6.5 - 2Process control for quality assurance

15.30 Poster Discussion Nancy Halle

6.5 - 10 B. Edmonds, A. Johns, Rugby, Warwickshire/GBThe application of quality assurance methodsto thermophysical properties and models

6.5 - 11 C. McGookin, C. Sandby-Thomas, W.R. Murphy,G. McKay, Belfast/IRLProcess development in the lead crystal industry

6.5 - 12 H. Brandl, K. Strohmeier, Munchen/DContribution to the stress analysis of quick-acting closures of pressure vessels

6.5 - 13 C. Lacaze, J.Gazerian, F. Rigaud, J.-M. Ruiz,Marseille/FQuality assurance as a project management tool

Session 7.1

Bioreaction Engineering

THU 20.6. Nancy Halle

9.00 Poster Presentation

7.1 - 1 A. Hashimoto, H. Igarashi, M. Shimizu, Tokyo/JEffect of far infrared radiation on pasteuri-zation of bacteria suspended in phosphatebuffered saline

7.1 - 2 C. Buttersack, K. Buchholz, Braunschweig/DFundamentals of pulp pressing -Ultrastructural analysis, kinetics and modeling

7.1 - 3 Y. Uemura, A. Hirano, Y. Hatate, H. Ando,Kagoshima; K. Murayama, M. Kubo, K.Kai,Kanagawa/JGrowth and protease production by thermophilicbacteria

7.1 - 4 I. Ardelean, H. Vais, A.M. Faghi, D.G. Margineanu,L. Dumitru, G. Zarnea, Bucharest/ROElectrochemical monitoring of bacterial biomassdensity and hydrogen production

7.1 - 5 M. Lopez, C. A.Ramirez, C. L. Stephens,D. L. Santiago, Mayagiiez/ Puerto RicoEffect of geometry and islet distribution onthe glucose-indiced insulin response of thehybrid artificial pancreas

7.1 - 6 M. Sakakibara, F. Okada, T. Tokiwa, Fukui/JEffects of ultrasound on hydrolysis of sucrosecatalyzed by invertase

7.1 - 7 A.T. Aguayo, J.M. Arandes, M. Olazar, M.J. Azkoiti,J. Bilbao, Bilbao/EComparison and limitations of measurementtechniques for acidity of solid catalysts

7.1 - 8 N.W. Schmidtke, Kitchener,ON; D.W. Smith,Edmonton, AL/CDNAeration system design challenges for thebioremediation of a chemical dump

7.1 - 9 H.-J. Jordening, A. Pellegrini, K. Buchholz,Braunschweig/DFluidized bed reactors for anaerobic waste watertreatment

7.1 - 10 V. Carbonell, J. Munoz, M. Bigeriego, Madrid/EDepuration of agricultural wastes

7 . 1 - 1 1 K.L. Sublette, Tulsa, OK; A.D. Montgomery,M.J. Mclnerney, Norman,OK/USAMicrobial control of the production of sulfideby sulfate-reducing bacteria

7.1 - 12 K. Terasaka, H. Tsuge, Yokohama/JMass transfer in highly viscous liquids inbubble columns with constant flow nozzle typegas distributors

Session 7.2

Methodology in Bioreactor Performance Design

Workshop: Organised by the EFB Working Party Bioreactor Performance

TUE 18. 6. Stadthall J.P. Hebel Saal

Chairmen: A. Moser, Graz/AK. Schiigerl, Hannover/D

Oral Presentations

9.00 A. Moser, Graz/A 7.2 - 1Bioreactor performance - Integrating strategybetween physiology and fluiddynamics

9.30 J. Villadsen, Lyngby/DK 7.2 - 2Biokinetics in structured models

10.00 K.Ch.A.M. Luyben, Delft/NL 7.2 - 3Process integration in biotechnology

11.00 S.-0. Enfors, Stockholm/S 7.2 - 4Impacts of protein engineering on bioreactorperformance

11.30 K. Schugerl, K.H. Bellgardt, A. Lubbert, 7.2 - 5T. Scheper, Hannover/DSophisticated measuring and control:prerequisites for high bioreactor performance

12.00 B. Kristiansen, Glasgow/UK 7.2 - 6Integrated design of a fermentation plant:production of bakers yeasts

Session 7.2 (cont.)

TUE 18. 6. Nancy Halle

14.00 Poster Discussion

7.2 - 10 T. Aratani, Shyobara City, Hiroshima/JComputer graphic display of bioreaction processstability as fractals

7.2 - 11 J.A. Holden, B. Buxton, S.M. KeithMiddlesbrough, Cleveland/UKThe use of expert systems in fermentercontrol

7.2 - 12 T. Takeda, M. Seki, Sh. Furusaki, M.Shigenobu,T. Furuya, Tokyo/JGrowth and vitamin E production in plant cellculture of Carthamus tinctorius

7.2 - 13 A.R. Ozdural, M. Iman, S.S. Celebi,Beytepe, Ankara/TRPreparation of para-magnetic carbonylfunctionalized polystyrene/divinylbenzenemicro-particles as support matrix forprotein/enzyme immobilization

7.2 - 14 D. Sathiyamoorthy, S. Geissen, A. Vogelpohl,Clausthal-Zellerfeld/DA design approach for liquid distributorin fluidized bed bioreactor

7.2 - 15 Sheng-Luo Xie, E. Wilkins, Albuquerque, NM/USAPerformance of rechargeable glucose electrodein-vitro at body temperature

7.2 - 16 D. Depeyre, A. Ismabert, X.L. Yang, E. Samouh,M. Stambouli, Chatenay-Malabry/FThe single-bubble method: a convenient experimentalapproach for gas-liquid mass transfer problemsin biotechnology

7.2 - 17 M. Takemata, Yokohama/JValidation method for bio-plant

7.2 - 18 D.B. Owings, K.L. Kadam, F. Daniel,Greenville, SC/USABioreactor engineering: agitation or airlift

7.2 - 19 C. Weilnhammer, E. BlaB, Munchen/DImprovement of product yield from fermentations

7.2 - 20 P. Labrune, A. Bergel, M.Comtat, Toulouse/FReduction of methemoglobin: from conception toscale-up of the first bioelectrochemical process

7.2 - 21 K. Fukunaga, K. Nakao, Tokiwadai, Ube/JEnzyme immobilization by ethylene-vinylalcoholcopolymer entrapment

7.2 - 22 T. Matsushita, Y. Kawakubo, H. Ijima, K. Funatsu,Fukuoka/JEnzyme production by high density culture ofmammalian cells using polyurethane foam as a newculture substratum

7.2 - 23 K. Funatsu, N. Koga, N. Sameshima, T. Matsushita,Fukuoka/JCarotenoid pigment production by plant cellculture in an air-lift column with draft tube

7.2 - 24 M. Farza, A. Cheruy, Saint Martin d'Heres/FComputer aided modeling of biological andphysico-chemical reactions in stirred tankbioreactors

7.2 - 25 T. 6'zbas, T. Kutsal, Beytepe, Ankara/TROxygen transfer in riboflavin fermentation byashbva qossypii

7.2 - 26 S.D. Vlaev, Sofia/BGBioengineering problems of some intermediate-stage bioprocesses by starch conversion

7.2 - 27 Wei-Mao Chang, Y.C. Liu, C.Y. Lee,P.Z. Gee, Hsinchu/ROCOn-line monitoring and control of cellconcentration in glutamic acid fermentation

7.2 - 28 B. Hitzmann, K. Schiigerl, Hannover/DG. Weddigen, Heidelberg/DRequired features of a real-time expert systemfor the control of a bioprocess

7.2 - 29 R. Simutis, I. Havlik, K. Schugerl, A. Lubbert,Hannover/DApplication of a fuzzy expert software duringthe control of a yeast fermentation

7.2 - 30 JiCheng Wang, Zhou Wei, Shuqing Wang,Hangzhou/PRCA new method to optimize penicillinfermentation process

7.2 - 31 J. Savkovic-Stevanovic, M. Vico-Stevanovic,R. Bona, S. Jorgarcevic, Beigrad/YUApplication of DSFP software package for simulationof Theological characteristics of fermentationbroth

7.2 - 32 R. Krull, M. Hottecke, F. Dorrscheidt,D.C. Hempel, Paderborn/DControl of substrate concentration in bioreactorswith process-HPLC

7.2 - 33 W.A. Knorre, D. Riesenberg, Jena; W.-D. Deckwer,E. Sanders, Braunschweig/DProcess strategy for high cell density cultivation(HCDC) of recombinant Escherichia coli

7.2 - 34 Hsin-Fu Chang, Taichang /ROCOptimization of aeration process in a bubble column

7.2 - 35 D.D.-Y. Ryu, J.-Y. Kim, Davis, CA/USAThe effects of plasmid content, transcription effi-ciency, and translation efficiency on the productivityof a cloned gene protein in Escherichia coli

7.2 - 36 R. Merchant, R. Silliphant, D. Ward, F. Merchant,Edmonton, AL/CDNHydrodynamic and oxygen transfer characteristics ofmechanically agitated pilot-scale fermentors

7.2 - 37 Jyh-Ping Hsu, Heng-Kwong Tsao, Taipei/ROCKinetic simulation of autocrine growth factorregulated mammalian cell growth on solidsurfaces

7 . 2 - 3 8 - withdrawn -

7.2 - 39 Wen-Teng Wu, Jiumn Yih Wu, Hsinchu/ROCFermentation in an airlift reactor with anet draught tube

7.2 - 40 P.L. Cen, J. Wu, J. Zhang, Hangzhou/PRCConcentrated sulfuric acid hydrolysis ofcellulose material and acid recovery

7.2 - 41 M. Karsheva, I. Penchev, V. Lossev, Sofia/BGRheology of industrial fermentation broths

7.2 - 42 B.R. Maiti, Kharagpur/INDModeling, design and scale-up of biochemicalhollow-fibre reactors

7.2 - 43 P.E. Barker, G. Ganetsos, J. Ajongwen,A. Akintoye, Birmingham/UKCombined bioreaction-separation on continuouschromatographic systems

7.2 - 44 A. Hirata, M. Hirata, N. Honda, Tokyo/JEnzymatic synthesis of aspartame precursorwith solvent extraction by using butyl acetatefor substrates feeding and product extraction

7.2 - 45 H. Ishikawa, T. Ishii, T. Murakami, H. Hikita,Sakai, Osaka/JEnzymatic conversion of fumarate to L-Malatein a membrane reactor capable of shiftingequilibria in reversible reactions

7.2 - 46 V. Bales, M. Polakovic, V. Stefuca, P. Gemeiner,Bratislava/CSOptimization of heterogeneous bioreactor withimmobilized cells

7.2 - 47 M. Sudoh, Y. Uda, M. Katsumata, Hamamatsu/JImprovement of output linearity of amperometricglucose sensor with hydrogen peroxide electrode

7.2 - 48 F. Pascal, J.P. Corriou, Nancy; C.Dagot,J. M. Engasser, Vandoeuvre; H. Pingaud, Toulouse/FMechanistic unstructured models as a powerfultool for a biochemical process simulator

7.2 - 49 M.-N. Pons, T. Cachot, M. Miiller, Nancy/FGeneralized model of alcoholic fermentation

7.2 - 50 Y. Takahata, T. Kajiuchi, T. Akehata, Yokohama/JHydrolysis of whey protein in immobilized enzymereactor with simultaneous separation by UF membrane

7.2 - 51 L. Belfares, M.-N. Pons, H. Vivier, Nancy/FStudy of control efficiency in antibiotic-producing large-scale fermentors

7.2 - 52 E. Kojima, Tsukuba, Ibaraki/JPhotoproduction of hydrogen by Chlorellain a bubble column

7.2 - 53 S. Chibois, Vendome; G. Trystram, J.J. Bimbenet,Massy/FPredictive modeling and simulation of gaztransfer for an air-lift fermentor

7.2 - 54 Hsien-Wen Hsu, Hwai-Shen Liu, Knoxville,TN/USAGas stripping in ethanol fermentation

7.2 - 55 E. Flaschel, Bielefeld/D; S. Crelier, A. Renken,Lausanne/CHOptical resolution of phenylalaninein liquid/liquid two-phase systems

7.2 - 56 R.L. Sonolikar, S.S. Bokade, Nagpur/INDMagnetically stabilized gas-liquid-solidfluidized bed bioreactor

7.2 - 57 E. Sada, Sh. Katoh, M. Terashima, Kyoto/JEntrapment of ion-dependent enzymes in reverse-phase evaporation vesicles and protective effectsagainst inhibitory ions

7.2 - 58 A.I. Garcia, L.A. Garcia, M. Diaz, Oviedo/EMixing process in static batch fermenters

7.2 - 59 I.S. Novella, M.A. Longo, L. Garcia, M. Diaz,Oviedo/EProtease production by free and alginate immobilizedserratia marcescens

7.2 - 60 G. Desmet, G. Baron, H. Verelst, Brussels/BTransport phenomena in a Couette-Taylor bioreactorwith immobilized cells

7.2-61 E. Nagy, Veszprem/HEnhancement of gas absorption rate as a functionof the particle size in slurry reactors

7.2 - 62 N. Nancib, R. Mosrati, J. Boudrant,Vandoeuvre les Nancy/FModelisation of the production of glyceraldehyde-3phosphate dehydrogenase by a genetically engineeredEscherichia coli

7.2 - 63 Zong-Ding Hu, Ying-Jing Yuan, Tianjin/PRCImmobilization of Catharanthus Roseus cellsin polyurethane foam and their growth kinetics

7.2 - 64 Ho Nam Chang, Beom Soo Kim, Woo Gi Lee, Seoul/ROKA new filter module for internal cell recycle system

7.2 - 65 R. Auria, J. Palacios, S. Revah, Mexico, D.F./MEXA simple diffusion reactor to evaluate kineticparameters in solid state fermentation

7.2 - 66 F. Merchant, A. Margaritis, London, ONT/CDNMass transfer and partitioning characteristicsof cell immobilization matrices

7.2 - 67 R.W. Coughlin, W. M. Mahmoud, A. Halim M.M. El-Sayed, Storrs, CT/USAEnhancing bioconversion of a toxic substrateby cell immobilization and by use of a complexingagent

7.2 - 68 H. Voss, Aachen/DReaction engineering of a polytropic large scaleenzyme reactor

7.2 - 69 M. Vossoughi, I. Alemzadeh, Tehran/IRStudies on L-Glutamic acid fermentation usingIranian beet molasses

7.2 - 70 I. Alemzadeh, M. Vossoughi, Tehran /IRThe kinetics of lactose hydrolysis inwhey using B-galactosidase

Session 7.3

Requirements of Downstream Processing for Biochemical Engineering

Workshop: Organised by the EFB WP Downstream Processing

TUE 18.6. Stadthall J.P. Hebel Saal

Chairmen: K. Buchholz, Braunschweig/D

G. Schmidt-Kastner, Stuttgart/D

Oral Presentations

14.00 R.W. Rousseau, Atlanta, GA/USA 7.3 - 1Recovery of biological products bycrystallization

14.30 Z. Knez, F. Posel, P. Sencar, V. Dolecek, 7.3 - 2I. Krmelj, Maribor/YUSupercritical extraction of biologicallyactive substances from water solution

15.00 P.S. Cartwright, Minneapolis,MN/USA 7.3 - 3Membrane separation technologies as unitoperations - their role in environmentalprotection

15.30 Shih-Yow Huang, J.D. Jin, Taipei, Taiwan/ROC 7.3 - 4Selection of the mobile phase systems and theoptimization for displacement chromatography

16.30 Poster Discussion Nancy Halle

7.3 - 10 I-Ming Chu, Wu-Yung Yang, Shi-Huang Wang,Shiao-Li Chang, Hsinchi/ROCExtraction of bioproducts by PEG/salts systems

7.3 - 11 D. Depeyre, A. Isambert, J. Genty, F. Valter,S. Zeghal, Chatenay-Malabry/FDynamic simulation on microcomputers offermentation/filtration processes

7.3 - 12 A. Nunez, E. Soriano, A. Altarriba, J. Costa-Sansaloni, Valencia/ECharacterization of ultrafiltration polysulfonemembranes for improved biological recovery

7.3 - 13 S. Ichikawa, F. Kamiwatari, M. Imai,M. Shimizu, Koganei, Tokyo/JPhysical characters of the reversed micellarsystem and protein extraction

7.3 - 14 M. Cheryan, Y.H. Yen, S. Tejayadi, L.R. Schlicher,M.A. Mehaia, Urbana, IL/USAProduction of lactic acid by fermentation:application of membrane technology to improveproductivity and downstream processing

7.3 - 15 R. Bajpai, J. Kim, Columbia, MO /USAExtractions in recovery of fermentationproducts: an overview and a case study

7.3 - 16 J.A. Monroy, A. Lebert, J.J. Bimbenet, Massy;C. Marty, J. Muchnik, Montpellier/FSimulation of cyanoglucosidic compoundselimination in cassava during drying

Session 7.4

Engineering Challenges in Solid Substrate Fermentation Processes

Workshop: Organised by the IOBB

WED 19.6. Stadthalle J.P. Hebel Saal

Chairmen: P. Kramer, Frankfurt am Main/DC. Rolz, Guatemala /GCA

Oral Presentations

9.00 D.M. Stuart, D.A. Mitchell, J.D. Lister, 7.4 - 1M.R. Johns, St. Lucia/AUSChallenges in the development of suitablescale-up criteria for solid-state fermentation

9.30 M. Moo-Young, Waterloo, ONT/CDN 7.4 - 2Reactor design for solid substrate bioprocesses

10.00 - withdrawn - 7 . 4 - 3

10.30 M. Raimbault, R. Auria, Montpellier/F 7.4 - 4S. Reyah, Mexico, DF/MEXModel support for solid state growth ofAsperqillus nioer

11.30 B. Prior, J. C. du Preez, P.W. Rein, 7.4 - 5Bloemfontein/ZASignificance of environmental parameters insolid substrate processes

12.00 J.P.S.G. Crespo, Monte de Caparica; J.S. Almeida, 7.4 - 6M.T.O. Barreto, L.M.D. Goncalves, J.L.P. Moreira,A.M.R.B. Xavier, M.J.T. Carrondo, Oeiras/PHigh cell concentration bioreactors in acidogenicfermentations

Session 7.4 (cont.)

WED 19. 6. Stadthalle J. P. Hebel Saal

Oral Presentations

14.00 Y. Nakamura, T. Sawada, M. Mohammed, 7.4 - 7Kanazawa/JEnzymatic saccharification and alcohol fermen-tation of steam-exploded lignocellulose material

14.30 S. Elmaleh, J.L. Farinet, F. Forest, 7.4 - 8Montpellier/F; F. Elyaman, Khartoum/SudanAgricultural wastes treatment in a plug-flowdigester

15.00 F. Cecchi, Venedig/I; J. Mata-Alvarez, 7.4 - 9Barcelona/EAnaerobic digestion of municipal solid waste

15.30 G. Giovannozzi-Sermanni, A. D'Annibale, 7.4 -10A. Porri, C. Perani, Viterbo/IBiochemical characteristics of Lentinus edodesaltered by different mixing rates of lignocellu-losic substrates

16.00 B.K. Lonsane, N.G. Koranth, Mysore/IND 7.4 -11Strategies for containment of microorganisms andits products in solid substrate fermentation processes

Session 7.5

Clean and Sterll Plants

MON 17.6 11.00 Nancy Halle

11.00 Poster Presentations

7.5 - 1 L. Gail, Frankfurt am Main/DModern concepts of cleanroom technologyfor sterile processing

7.5 - 2 M. Sasaki, Yokohama/JOptimal rinsing method in CIP (clean-in-place)operation of bio-plant

7 . 5 - 3 M. Sasaki, Yokohama/JEstimation of clean steam consumption and heating-up time for the sterilization of bio-plants

7.5 - 4 Y. Maruyama, Y. Shibata, K. Tanaka, K. Watanabe,Yokohama/JThe design method of the cleaning system of thebio-plant

Session 7.5 (cont.)

Clean and Sterile Processing

MON 17.6 Stadthalle H. Thoma

14.00 Panel Discussion

M. Oustriere, Decines/F

G. Lipphardt, Frankfurt am Main-H6chst/D

P. Oonath, Basel/CH

B. Buggeri, Torino/I

Session 7.6

Food Process Engineering

Workshop: Organised by the EFChE WP Food

TUE 18. 6. Konferenz Haus Saal 1

Chairmen: J.J. Bimbenet, Massy/FH. Schubert, Karlsruhe/D

Keynote Lecture

9.00 J.J. Bimbenet, Massy/F 7.6 - 1Food technology in relations to ChemicalEngineering

1. Membrane and filtration processes

Keynote Lecture

9.15 R. Ben Aim, Compiegne; M. Mietton Peuchot, 7.6 - 2Toulouse/FClarification and concentration by membraneprocess: A challenge for food industry

2. Enzymatic processes

Keynote Lecture

9.45 A.M. Martin, St. John's, Newfoundland/CDN 7.6 - 3The role of selected enzymatic processes infood processing

3. Modeling, data bases, expert systems

Keynote Lecture

10.15 M. H. Zwietering, K. van't Riet, Wageningen/NL 7.6 - 4Modeling of the quality of food in production anddistribution chains

10.45 J.J. Bimbenet, Massy/FConclusion

11.15 Poster Discussion Nancy Halle

Membrane and Filtration Processes

7.6 - 10 M. Lefebvre, Jing Shen, M. Nguyen,Richmond, NSW/AUSPrinciples and applications of osmotic distillationfor the food industries

7.6 - 11 M. Mahaut, J. Korolczuk, Rennes/FEffect of the equipment design and technologicalparameters on the rheological properties offresh cheeses obtained by ultrafiltration

7.6 - 12 M.G. Isse, H. Schubert, Karlsruhe/DOsmotic dehydration of mangomass transfer between mango and syrup

7.6 - 13 R. Abdul Aziz, N. Mohamed, H. Saidi,S. Mustapha, Kuala Lumpur/MALFiltration as a better method in solvingseparation and environmental problems incrude palm oil mills

Enzymatic Processes

7.6 - 14 M. Imai, K. Nagayama, H. Suzuki, N. Sonoda,S. Urushiyama, Koganei,Tokyo/JHydrolysis of triglyceride in reversedmi cellar system

7.6-15 - withdrawn -

Modelling. Data Bases. Expert Systems

7.6 - 16 G. Trystram, A. Duquenoy, I. Savoye, P. Brunet,Massy/FModeling of the biscuit baking ovens process

7.6 - 17 T. Hanzawa, X.J. Huang, N. Sakai, Tokyo/JThe slowest heating or cooling point in acanned food in oil

7.6 - 18 V. Niviere, Clermont-L'Herault; P. Grenier,J.M. Roger, F. Sevila, Montpellier;M. Oussalah, Nimes/FMeasurement of a continuous food process evolutionrate and its use for expert system based control

7.6 - 19 N. Azin Morad, M.Kamal Abd. Aziz, Kuala Lumpur/MALPalm kernel oil extraction:Optimization of palm kernel crushing plantsin Malaysia

7.6 - 20 N. Azin Morad, M. Kamal Abd. Aziz, Kuala Lumpur/MALPalm oil database development:Development of physical, chemical and thermo-dynamic properties of fatty acids

7.6 - 21 M. K. Abdul Aziz, N. Azin Morad, Kuala Lumpur/MALInvestigation of pinch technology in Malaysianpalm oil and oleochemicals:Preliminary concepts, considerations and designof a process integrated palm oil refinery

Food and Nutrition

7.6 - 22 R. Baez-Sanudo, T.E. Bringas, R.R. TroncosoHermosillo/MEXEvaluation of postharvest handling oftomatoes Licooersicon esculentum mill

7.6 - 23 R. Baez-Sanudo, C.A.J. Ojeda, M. Barrera,Hermosillo/MEXBiochemistry changes in cactus fruits(pitayas) Stenocereus thurberi during itsdevelopment and its industrialization potential

7.6 - 24 C. Bornhardt, A. Cifuentes, J.M. Aguilera,G. Figueroa, Temuco/RCHMicrobiological and chemical stability ofpelagic fish mince preserved by combinedmethods technology

7.6 - 25 V. A. Bernshtam, I. M. Manson, Kharkov/USSRCorrugated contact surface application inliquid film apparatus of food industry

7.6 - 26 C.E. Calmanovici, Toulouse/F; M. Giulietti,Sao Carlos/BRProcess for extraction of natural dye from annattotrees (Bixa orellana)

7.6 - 27 A. Altarriba, D. Vidal, Valencia/ESorption isotherms of osmo-dried eelAnquilla anauilla

Session 7.7

Mixing of Complex Fluid Systems for Food Industries

Workshop: Organised by J. Bertrand, Toulouse/F

MON 17. 6. Konferenz-Haus Saal 1

Chairmen: J. Bertrand, Toulouse/FR. David, Nancy/F

Keynote Lecture

9.00 J. Bertrand, Toulouse/F 7.7 - 1Mixing of highly viscous Newtonian andnon-Newtonien fluids. Case of gate-agitatorsof gate-agitators and two-blade impellersfor fluids for complex systems of foodindustries

Oral Presentations

9.45 I. Fort, M. Hrach, Praha/CS 7.7 - 2Study of mixing of meat suspension

10.15 H. Hardjomidjojo, E. Wolff, G. Corrieu, 7.7 - 3Thiverval Grignon/FPower consumption, mixing time and hold up tocharacterize non-newtonian fermentation fluidsagitation and aeration

10.45 K. Takata, M. Kikuchi, Kobe/J 7.7 - 4Flow structure and mixing mechanism in stirredtank with double vertical impellers