Bringing Process Analytical Chemistry to the Classroommelton/acs-3-01-papac-ched.pdf · PAC is a...
Transcript of Bringing Process Analytical Chemistry to the Classroommelton/acs-3-01-papac-ched.pdf · PAC is a...
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Bringing Process AnalyticalChemistry to the Classroom
L. A. MeltonUT-Dallas
J.P.Chauvel and W.W. HensleeDow Chemical Company
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What is Process AnalyticalChemistry?
➟ “the art and science of making rapid, onlinemeasurements for process control, safety, andenvironmental monitoring”
➟ “the construction and operation of anunmanned analytical laboratory, which mustprovide reliable data >99% of the time, with 4hours total maintenance time per month”
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Lab v. On-line Analysis
$$$$$
grabsampleanalysis
variability
processanalyzervariability
processdisasters
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Exterior of Analyzer House
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Interior of Analyzer House
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Post-Graduation Plansof BS / BA Chemistry Graduates
Source: ACS New Graduate Surveys ACS Department of Career Services
0
10
20
30
40
50
60
85 87 89 91 93 95 97 99
Per
cen
t
Year
Employment
Other Graduate Plans
Chemistry Graduate Plans
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Companies need PA Chemists
➟ 2 year degree -- analyzer maintenance
➟ 4 year degree -- method development andanalyzer systems integration
➟ Ph.D -- system design, tricky methoddevelopment, instrument R&D, chemometrics
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Why consider PAC?
➟ PAC is a growth area in industrial analyticalchemistry; routine lab jobs are disappearing.
➟ Many chemistry students (particularly fromcommunity colleges) become processoperators and technicians➟ If they have the skills to work in process analyzer
maintenance, they can start at $30-35k/ year witha two year degree.
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Practical Aspects of ProcessAnalytical Chemistry
➟ Cooperative effort between Dow ChemicalCompany and University of Texas at Dallas
➟ Dow needed to “learn what they knew wellenough to codify and teach it”.
➟ UT-Dallas graduate students took the firstPAPAC course in June 1999.➟ one week, intensive, on Dow plant site, students
worked in teams on realistic PAC projects
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Practical Aspects of ProcessAnalytical Chemistry
➟ It was a wonderful course, but Dow could notoffer it to just a few students.
➟ Next idea: Adapt the PAPAC presentationmaterials so that they can be used by faculty(instead of PAC professionals), and offerworkshops so that faculty can learn ways theymight convey PAC to their students
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Practical Aspects of ProcessAnalytical Chemistry
➟ Melton (chemist) created➟ notes and commentary for the original materials
➟ additional presentations on industrial chemistry,near IR and chemometrics, etc
➟ prepared suggested two lecture and four lecturesyllabi for chemists
➟ Ricker (chemical engineer) created➟ unit on process control
➟ prepared suggested two lecture and four lecturesyllabi for chemical engineers
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Practical Aspects of ProcessAnalytical Chemistry
➟ The PAPAC materials are available on a CD-ROM and (Why carry plastic around?) a website.
➟ Instructors will have access to the originalslides as well as the commentary.
➟ The approach is to provide lots of support forinstructors but not to demean them by makingall the choices for them.
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Practical Aspects of ProcessAnalytical Chemistry (Topics)
➟ Industrial Chemistry
➟ How analyzers help make $$
➟ Standard Analyzer technology➟ GC, oxygen, spectroscopy
➟ New Analyzer Technology➟ Raman, tunable diode lasers, NMR, mass
spectrometry, computers
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Practical Aspects of ProcessAnalytical Chemistry (Topics)
➟ Sample System Design➟ transport (1000 ft?)
➟ conditioning (start with pipeline at 3000 psi?)
➟ Analyzer Systems Integration➟ How does the analyzer house get designed?
➟ What about overseas projects?
➟ What is success?
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Lab v. On-line Analysis
$$$$$
grabsampleanalysis
variability
processanalyzervariability
processdisasters
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Practical Aspects of ProcessAnalytical Chemistry
➟ PAPAC Workshop #1 was held January 7-12,2001 at the Dow Chemical plant in Freeport,Texas
➟ 12 faculty attended -- community college,four year college, M.S. and Ph.D. universities
➟ The three teams each worked on a processanalytical design problem and presented theirwork to Dow PAC professionals on Friday.
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Practical Aspects of ProcessAnalytical Chemistry
➟ Each attendee pledged to use the PAPACmaterials on campus in some way.
➟ Each attendee received two “lifelines”➟ industrial PAC people who agree to help out
when students stump you with a question
➟ help arrange field trips for students to see realPAC installations
➟ Each attendee has access to the web site.
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Practical Aspects of ProcessAnalytical Chemistry
➟ Dow tells me that other companies are willingto host future work shops for faculty.
➟ Recruiting “lifelines” is a win-win situation.
➟ If you would like to know more, or putyourself on the e-mailing list for futureworkshops (Jan. 2002 or later)
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Practical Aspects of ProcessAnalytical Chemistry
➟ Acknowledgements:
➟ The wonderful people in the Freeport ProcessAnalytical and Analyzer Maintenance groupsat Dow Chemical Company
➟ Financial support from Dow ChemicalCompany, Air Products & Chemicals, Inc.,and the University of Texas at Dallas
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Practical Aspects of ProcessAnalytical Chemistry
➟ Acknowledgements:
➟ Dr. W.W. Henslee (Dow)
➟ Dr. J. P. Chauvel (Dow)
➟ Dr. F. K. Schweighardt (Air Products)