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ChE 435: Data for Design Projects
Dave Zwicky Chemistry Library
[email protected] /// 49-67279
http://guides.lib.purdue.edu/che
DATA
• Accepted/Standard Data
• Experimental Data
• Predicted/Computed Data
TODAY’S AGENDA
• Two design problems
– One “easy”
– One “difficult”
• Important databases along the way
• Information Audit – preparing for your planning meetings
SUGGESTED RESOURCES
ChE Information Resources Page
http://guides.lib.purdue.edu/che
Chemical Properties Resource Guide
http://guides.lib.purdue.edu/chemprop
Chemistry Library Web Site http://www.lib.purdue.edu/libraries/chem/
DESIGN PROBLEM #1
DESIGN OF AN ETHANOL PURIFICATION SYSTEM
Your team has been contracted by a small chemical company located in northern Indiana to design a system to remove 98% of a contaminant ethyl acetate from a process stream. The process stream flow rate is 35 m3/hr and contains 4.5% ethyl acetate. It has been suggested that a vacuum sieve-tray column operating at 0.65 bar would be an economical choice.
In order to evaluate the viability of the proposed system, equilibrium data for the ethanol/ethyl acetate system and sieve tray efficiency data are required.
“In order to evaluate the viability of the proposed system, equilibrium data for the ethanol/ethyl acetate system and sieve tray efficiency data are required.”
EQUILIBRIUM DATA
• Data collected in handbooks/data compilations
• Published data in research articles
HANDBOOKS & DATA COMPILATIONS
Book series from
DECHEMA
CHEM REF
541.363
1st floor, Chem Lib
DATA IN RESEARCH ARTICLES
• Suggested Databases:
– SciFinder
– Engineering Village
– Web of Science
– Google Scholar
MODIFYING SEARCH STRATEGIES
Gives 28 results
Gives 18 results From Web of Science, http://purl.lib.purdue.edu/db/db257
OTHER STRATEGIES
ethanol and “ethyl acetate” and “equilibrium data” 26 results ethanol and “ethyl acetate” and “phase-equilibria” 45 results ethanol and “ethyl acetate” and “phase-equilibri*” 56 results ethanol and “ethyl acetate” and “equilibrium stud*” 1 result ethanol and “ethyl acetate” and equilibrium 210 results And more: VLE, vapor-liquid, “ethyl ethanoate”, EtOAC, etc.
EXPERIMENTAL DATA
USING A CITATION NETWORK
TRAY EFFICIENCY DATA
• Data collected in handbooks/data compilations
• Published data in research articles
TRAY EFFICIENCY DATA
• Consult Perry’s Handbook [online]
PERRY’S HANDBOOK
Perry’s also provides additional tips on obtaining tray efficiency…experiment, prediction, etc.
DESIGN PROBLEM #2
CHEMICAL REACTOR DESIGN
REACTION KINETICS DATA
• Data collected in handbooks/data compilations
• Published data in research articles
HANDBOOKS & DATA COMPILATIONS
NIST Kinetics Database “thermal gas-phase chemical reactions”
11,700 distinct reactant pairs
http://kinetics.nist.gov
DATA IN RESEARCH ARTICLES
• Suggested Databases:
– SciFinder
– Engineering Village
– Web of Science
– Google Scholar
Review Article!
WHEN THERE IS NO EASY SOLUTION
• Read the article/research
• Follow additional leads –Authors, citations, etc.
• Confirm findings if necessary/possible
• Modify your project – Method, catalyst, etc.
• Determine yourself by experiment
INFORMATION AUDIT
OVERALL PROJECT STATEMENT
• Restate the problem in your own words
FOUNDATIONAL INFORMATION
• Principles, theories, equations
• Handbooks, textbooks, handouts
• http://guides.lib.purdue.edu/che
– “Background Information”
– “Handbooks, Data and Properties”
CHEMICALS & COMPOUNDS OF INTEREST
• Table of relevant compounds
• http://guides.lib.purdue.edu/che – “Background Information”
– “Handbooks, Data and Properties”
Chemical Name
CAS Registry # Properties Needed Already have
(Y/N)?
Pyridine
110-86-1 BP (115oC)
Y
Formaldehyde
50-00-0 BP (-19 oC)
Refractive index
Y
N
BEST PRACTICES
• What have other people done to solve this type of problem?
• Articles/News
• http://guides.lib.purdue.edu/che
– “Searching for Articles/Patents”
REGULATIONS & STANDARDS
Safety/Laws/Standards
http://guides.lib.purdue.edu/che
“Chemical Process and Safety”
IHS Standards Expert: http://purl.lib.purdue.edu/db/db159
INTELLECTUAL PROPERTY
• Patents
• http://guides.lib.purdue.edu/che
– “Searching for Articles/Patents” • http://www.lib.purdue.edu//libraries/chem/subjectGuide#paten
t
CITING YOUR SOURCES
• http://guides.lib.purdue.edu/che
– “Cite Your Sources”
SUMMARY
• Use print and online resources
• Consider compiled data in handbooks AND experimental data reported in research (journals, patents, etc.)
• Look for possible next steps when stuck
• [When things get difficult,] take notes of what you have already done, especially for sharing with your team
• All else fails, contact me or your instructor
