ChE 452 Chemical Kinetics and Catalysis MWF 10 am 161 Noyes Lab 1.
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ChE 452 Chemical Kinetics and Catalysis MWF 10 am 161 Noyes Lab 1
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Transcript of ChE 452 Chemical Kinetics and Catalysis MWF 10 am 161 Noyes Lab 1.
ChE 452
Chemical Kinetics and Catalysis
MWF 10 am 161 Noyes Lab
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Overview of Today's Lecture
Background Course objectives Organization Requirements Grading
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Background
Chemical kinetics affects every day life. Determines how fast insects
walk, how quickly plants and animals grow and even how fast hair grows on your head.
Very important in chemical processes. Selectivity and activity of
chemical reactions determines how well chemical processes work.
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Major Application In Chemical Industry Chemical Reactor Design
Need kinetics to do reactor design Need kinetics to do semiconductor
process design Need kinetics to do drug design
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Reactor Design: Need to Determine
Process chemistry What reactions can lead to the desired
products What side reactions occur What are the rates of the processes Any safety issues?
Reaction conditions Temperature, pressure Catalysts, solvents
Contacting pattern CSTR vs plug flow Mixing issues Heat transfer & pressure drop Mathematical modeling
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What Have You Learned So Far?
Process chemistry What reactions can lead to the desired products What side reactions occur What are the rates of the processes Any safety issues?
Reaction conditions Temperature, pressure Catalysts, solvents
Contacting pattern CSTR vs plug flow Mixing issues Heat transfer & pressure drop Mathematical modeling
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What Have You Learned So Far?
Process chemistry What reactions can lead to the desired products What side reactions occur What are the rates of the processes Any safety issues?
Reaction conditions Temperature, pressure Catalysts, solvents
Contacting pattern CSTR vs plug flow Mixing issues Heat transfer & pressure drop Mathematical modeling
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Changes conversion by factor of 10
Changes conversion by factor of 109- 1021
Course Objectives
Provide background, quantitative skills so you can predict:
Process chemistry What reactions can lead to the desired
products What side reactions occur What are the rates of the processes Any safety issues?
Reaction conditions Temperature, pressure Catalysts, solvents
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Course Objectives: II
Change from an undergrad to a professional Tutorial style Students
responsible for learning
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Major Topics
Review of basic kinetics. What are the key factors that determine
rates of reaction. Which effects are large, which effects are small.
How can you measure rates? Direct vs indirect measurements. Pitfalls in data analysis. Design of experiments.
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Major Topics Continued
Prediction of rates. Rate equations from mechanism.
Prediction of mechanism. Quantitative methods to predict organic
chemistry. Also gives side reactions, explosions.
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Major Topics Continued
Prediction of rate constants Prediction of pre-exponentials
Review of stat mech Transition state theory, collision theory,
RRKM Prediction of activation energies
Polayni equation, Marcus equ, Blowers-Masel
Quantum methods
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Major Topics Continued
Catalysis How do catalysts work?
Mechanisms of catalytic action Kinetics of catalytic reactions
Solvents as catalysts How do you choose a solvent to
maximize rates Metal catalysts
What do they do, how do they work?
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Class schedule
Tutorials – feb 5, feb 19, mar 5, april 9, april 23, april 30. Five groups: 10, 10:30, 3:30, 4:00 4:30
Midterm weds March 17 Final 8 am Tuesday may 11
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Organization
Class will divide into 6-7 person squads Squads will work together on homework
and hand in group assignments Squads will meet together with Masel or
Zack for a 30 minute tutorial. (10:00, 10:30, 3:30, 4:00, 4:30) feb 5, feb 19, mar 5, april 9, april 23, april 30
Please divide yourselves into squads today and pick a time for a tutorial
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Requirements
Midterm Final Homework almost every week
Each group should work together on the assignment and hand in one group report.
Tutorials
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Textbook
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Chemical Kinetics and CatalysisRichard I MaselWiley 2001
References
Principles of Adsorption and Reaction On Solid Surfaces by Rich Masel
Comprehensive chemical kinetics. by C. H. Bamford and C. F. H. Tipper.
Chemical kinetics and dynamics / Jeffrey I. Steinfeld, Joseph S. Francisco, William L. Hase.
Thermochemical kinetics Sydney W. Benson. Statistics For Experimenters, Box, Hunter,
Hunter19
Grading
Midterm 30% Final 50% Homework 10% RIM Judgment 10%
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My Grading Philosophy
I like to give A's – but students have to earn them
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Course Policies
1. No whining2. No whining3. No whining4. Chill out
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Course Policies
5. Encouraged to work together on homework
6. Closed book/notes exams7. Sample exam questions
on the web8. No presents 9. No whining
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Misc Course Info
Course notes will be available at /http://www.maselclasses.com/che452/
Please download lect prior to class Exams will include essay questions,
questions that require critical thinking e.g. compare and contrast …
Sample exam questions will be on the website
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Class Question
What did you learn new today?
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