Degradation of Hydrazine and Monomethylhydrazine for Fuel ...
FINEAMIN Water/steam circuits · Boilers boiling out and conservation ... Environment friendly (no...
Transcript of FINEAMIN Water/steam circuits · Boilers boiling out and conservation ... Environment friendly (no...
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FINEAMIN® Chemical treatment ofWater/steam circuits
1. Field of applications 2. Characteristics 3. Mode of operation 4. Stewing and Blow-out 5. References 6. Products for steam systems, district heading systems and cooling water systems 7. Proof systems / ISO
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1. Steam boilers of all operating pressures
▐ Water tubes boilers until 210 bar, ca. 560 °C with turbines
▐ Recovery-boilers
▐ Fire tubes boilers
▐ Low pressure boilers
Mono tube boilers▐
Application rangeFINEAMIN®
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Application range
2. City/District Heating Systems, pressurized Heating Systems, Heating Systems any size
The system is protected against corrosion throughprotective Polyamines
Scale and deposit inhibition, gentle removal of exsitingscalingEnergy-saving thanks the imroved heat transferThe salt content in the system is not increased
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FINEAMIN®
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Application range
3. Boilers boiling out and conservationin Water-Steam-Systems
Cleaning of the plant of grease, oil, rolling skin and iron oxides by boiling technologyFormation of a good magnetite protective film already during stewingSteam purity is achieved with considerably fewer blow-out cycles leading to time and, in particular, cost savingsEasy handling and working with Polyamines
Disposal conditions of the local authorities can be met without problem
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FINEAMIN®
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Application range
Cooling sytems (open and closedsystems)
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Disperses dirt, mineral salts and iron oxide
Excellent corrosion protection
Scale and deposit inhibition
Improves the heat transfer
Reduction of boiler water blow-down rate
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FINEAMIN®
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Application rangeSteam Boilers
1. Power Plants1.1. GUD - plants1.2. Condensation plants1.3. Biomass plants
2. Industry Plants2.1. Refineries2.2. Incineration plants2.3. Paper – Timber industry2.4. Building materials industry2.5. Glass industry2.6. Printing plants2.7. Laundries
3. Food Industry3.1. Breweries3.2. Distilleries3.3. Bakeries3.4. Meat processing
FINEAMIN®
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Characteristics
Affects the structure of the protective magnetite layerin the boiler so to increase protection
Reduction of boiler water blow-down rate
The system is protected against corrosion through protective polyamines
Dispersion of sediments, gratings, dirt, mineral salts and iron oxide
Energy-saving thanks the improved heat transfer
The salt content in the system is not increaseddecline of the blow-down rate
Alkalises the entire steam system including condensate recirculation and feed water system
Hardness stabilization and protection against new sediments
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FINEAMIN®
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Ecologically friendly, contains no phosphat, sulfiteor hydrazine
70 % bio-degradable (OECD 301 F)
Water hazard class 1 or 2 – (low) hazardous to water
Health andecological aspects
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ISO 9001:2000 certification
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FINEAMIN®
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Contains licensed boiler antiscale(VdTÜV-Zul.Nr. 01KG50)
Hygiene certificate, permissiblefor the application in thedistrict heating and the heatingsystem with heating of thedrinking water using heatexchanger
Health and ecologicalaspects
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FINEAMIN®
Admission FINEAMIN 24 forsteam generation in foodindustry and hospitals
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Advantages
Water and Energy Savings: reduction of the blow-down rate
Efficient, because FINEAMIN® avoids any kind of corrosion, your Capital Plant is protected
Protects with a monomolecular protective layer all parts of the plant
Scale and deposit inhibition, online dispersing action of old deposits
Avoids and controlles magnetite growth andmagnetite sludges
Easy to use: FINEAMIN® is injected in 99% of the plants with only one dosing station
Economic: low dosing rate and very low maintenance costs
Environment friendly (no phosphate and hydrazine)
Increase of the boiler durability
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FINEAMIN®
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After treatment of the iron strips with 20 ppm FINEAMIN® the surface of the metal showed a continuous protective, dense hydrophobic layer – With repeated treatment thefilm became denser.
Polyamine3 x 16 h 20 ppm
Conventional Treatment4 x 16 h
FINEAMIN®
Advancement of themagnetite protective layer
Mode of operation
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Condensing turbine 29 MW, 112 bar
After 1 year Polyamines treatment
On-line cleaning of deposits on a teamturbine
with Polyamines(turbine 1)
without Polyamines(turbine 6)
FINEAMIN® Mode of operation
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On-line cleaning of deposits on a steamboiler drum
Power station; in Germany Water tubes boiler 4 x 125 t/h, 112 barAfter 3 weeks Polyamines treatment
FINEAMIN® Mode of operation
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On-line cleaning of deposits on a steamboiler drum
Water tubes boiler4 x 125 t/h, 112 bar
After 3 weeks Polyamines treamtent
FINEAMIN® Mode of operation
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On-line cleaning of deposits on a steam boiler(multi layer of magnetite)
After 2 months Polyamines treatment
befor Polyaminestreatment (old tube)
after Polyaminestreatment (new tube)
two magnetite layer
continuous magnetiteprotection surface
Water tubes boiler 275 t/h, 130 bar, 535 °C
FINEAMIN® Mode of operation
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After 6 months Polyamines treatment
Fire tubes boiler 2,5 t/h, 13 bar
FINEAMIN® Mode of operation
Surfaces passivation with a FINEAMIN protective film(membrane passivation)
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After 6 months Polyamines treatment
Fire tubes boiler 2,5 t/h, 13 bar
Surfaces passivation with a FINEAMIN protective film(membrane passivation)
FINEAMIN® Mode of operation
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Protection of the entire steam system inclusive therunback/return condensate through alkalizer
Polyamines and neutralization of the carbonic acid
pH-Wert
7
7,5
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9.5.01 22.5.01 9.8.01 16.10.01
KondensatSpeisewasser
After 4 months FINEAMIN® treatment
FINEAMIN® Mode of operation
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Stewing and Blow-outFINEAMIN®
Stewing and Blow-out of
Steam Boilers with
FINEAMIN®
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Stewing and Blow-outFINEAMIN®
-Easy handling and working with FINEAMIN®
- Reduced safety requirements (only safety goggles and protective gloves) whenfilling the system
-No storage regulation (WGK 1)
- Disposal conditions of the local authorities can be met without problem (pH - value, CSB, TOC etc.)
- More thorough cleaning of the plant of grease, oil, rolling skin and iron oxides by thespecial combination of "film forming" polyamines and polyacrylates
-Formation of a good magnetite protective film already during stewing
- Steam purity is achieved with considerably fewer blow-out cycles leading to timeand, in particular, cost savings
-Shortening of rinse and idle periods also results in a reduction of operating costs
Disadvantages of the classic methods
Trisodiumphosphate: difficult to dissolve in the watercan result in phosphate deposits in the tubes no dispersing capabilitiesnot volatileproblematic disposal into water or sewage systemtendency of foaming when over-doseddanger of hide-out effectlonger blow-out times
Bicarbonate lye or caustic soda: no dispersing capabilitiesnot volatileproblematic handlingcaustic burnsdanger of stress corrosions crackingrather long blow-out period
Demineralised water: no dispersing capabilitiesno cleaning capabilityrather long stewing and Blow-out period, not volatile
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Stewing and Blow-outFINEAMIN®
Effect of FINEAMIN® on the Surface of C-Steel
Experiment: The surface of an iron sheet was polished and subjected to various water conditions in a laboratory autoclave:
1. demineralised, deaerated water, alkaline
2. as above, but with 20 ppm FINEAMIN®
After every step the water was changed.
magnetite Crystals Experiment 1 magnetite Crystals Experiment 2classic with FINEAMIN®
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1. FINEAMIN® – products for steam systems
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ProductsFINEAMIN®
FINEAMIN® 90 - de-ionizated feed water
FINEAMIN® 12 - de-ionizated feed water
FINEAMIN® 06 – partly demineralizated/softened feed
FINEAMIN® 06 PCK – partly demineralizated/
FINEAMIN® 15 – partly demineralizated/softened feed
softened feed water
water
water
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2. FINEAMIN® –
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ProductsFINEAMIN®
FINEAMIN® 19
FINEAMIN® 06
FINEAMIN® 15
products for district heatingsystems
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3. FINEAMIN® –
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ProductsFINEAMIN®
other biocide products
FINEAMIN® 95 T
FINEAMIN® 94
FINEAMIN® FINEALGA ME
products for cooling watersystems
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Proof systems
Photometric Determination for FINEAMIN® - products
can be used for all FINEAMIN® - products
high precision ( 1 mg/l )
easy procedure (reagent 1 and 2)
6 minutes reaction period
shelf life of reagents ( > 1 year )
valid for all cuvets size
valid for all photometers
photometer ( e.g. Hach, Lange, Macherey Nagel )
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FINEAMIN®