Lecture 11 Thursday 2/7/08 Determining the Rate Law from Experimental Data Integral Method Graphical Method Nonlinear Least Regression Multiple Reactions.

Slides:

Advertisements

Similar presentations

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Advertisements

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Topics to be covered in this module

Conversion and Reactor sizing

Conversion and Reactor Sizing

Chapter 6 Multiple Reactions.

Chemical Reaction Engineering Asynchronous Video Series Chapter 5: Finding the Rate Law H. Scott Fogler, Ph.D.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Lecture 1 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 10 Tuesday 2/5/08 Definition of Selectivety Instantaneous S D / U = r D /r U Overall = F D /F U Semibatch Reactors Read Problem P4-23 on page 246.

Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining DD ________ ____________ CC B B A A InertI where and.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Today’s Lecture 1/8/08 (2) Review of Lecture 1 Solution to P1-6 Definition of Conversion, X Develop the Design Equations in Terms of X Size CSTRs and PFRs.

Lecture 20 Thursday 3/20/08 Multiple Reactions with Heat Effects.

Lecture 18 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 9 Thursday 1/31/08 Membrane Reactors : Used for Thermodynamically Limited Reactions Balances in Terms of Molar Flow Rates Block 1: Mole Balances.

Lecture18 Thursday 3/13/08 Solution to Tuesdays In-class Problem. User Friendly Energy Balance Derivations Adiabatic (Tuesday’s lecture). Heat Exchange.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Lecture 4 Tuesday 1/15/08 Block 1: Mole Balances Size CSTRs and PFRs given –r A =f(X) Block 2: Rate Laws Reaction Orders Arrhenius Equation Block 3: Stoichiometry.

Lecture 11 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Lecture 11 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Chemical Reaction Engineering Asynchronous Video Series Chapter 2: Conversion and Reactors in Series H. Scott Fogler, Ph.D.

Lecture 8 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Kjemisk reaksjonsteknikk Chemical Reaction Engineering

Chemical Reaction Engineering Asynchronous Video Series Chapter 6, Part 1: Series, Parallel and Complex Liquid Phase Reactions: Selectivity, Mole Balances.

By Noor Amirah Abdul Halim.  Parallel reactions  Series reactions  Complex reactions (parallel and series reactions)  Independent reactions.

Collection and Analysis of Rate Data

Chemical Reaction Engineering Asynchronous Video Series Chapter 4, Part 1: Applying the Algorithm to a CSTR H. Scott Fogler, Ph.D.

L8-1 Slides courtesy of Prof M L Kraft, Chemical & Biomolecular Engr Dept, University of Illinois, Urbana-Champaign. Review: Pressure Drop in PBRs A →

L9-1 Slides courtesy of Prof M L Kraft, Chemical & Biomolecular Engr Dept, University of Illinois, Urbana-Champaign. L9-1 Review: Isothermal Reactor Design.

ERT 316 R EACTION E NGINEERING C HAPTER 5: C OLLECTION AND A NALYSIS OF R ATE D ATA BY ANIS ATIKAH AHMAD.

Chemical Reaction Engineering Chapter 4, Part 3: Pressure Drop in a Packed Bed Reactor.

Collection and Analysis of Rate Data

Session 7 Integral and differential method. Integral method of analysis of data First order reversible reaction At equilibrium dC A /dt = 0.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Isothermal Reactor Design

1 - 08/12/2015 Department of Chemical Engineering Lecture 5 Kjemisk reaksjonsteknikk Chemical Reaction Engineering  Isothermal reaction design algorithm.

Lecture 6 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 2 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 8 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

Lecture 12 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

ChE 402: Chemical Reaction Engineering

Lecture 11 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

CSTR in series and in parallel

Chemical Reaction Engineering

Lecture 5 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Chemical Reaction Engineering Asynchronous Video Series

Lecture 11 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 4 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 12 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 22 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 5 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Chemical Reaction Engineering

Mustafa Nasser, PhD, MSc, BSc Chemical Engineering

CHAPTER Five: Collection & Analysis of Rate Data

Lecture 6 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 11 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Lecture 22 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Multiple Reactions Chapter 6.

Steady-state Nonisothermal reactor Design Part I

Lecture 6 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.

Presentation transcript:

Lecture 11 Thursday 2/7/08 Determining the Rate Law from Experimental Data Integral Method Graphical Method Nonlinear Least Regression Multiple Reactions The Four Types What’s New to Our Algorithm Reactions in Series

Levenspiel Plot

Two steps to get Step 1: Rate Law Step 2: Stoichiometry Step 3: Combine to get

Finding Rate Laws, Multiple Reactions Slope = α CACA dC A /dt ln t(min)0123 C A (mol/L) Find the f(t) of using equal area differentiation t 123 Areas equal for both sides of the histogram CACA dC A /dt Plot –dC A /dt as a function of C A α = slope ln CACA Slope = α dC A /dt

Regression Method C meas C Calc (C c -C m ) (C c -C m ) Guess values for α and k and solve for measured data points then sum squared differences for α = 2, k = 1 → S 2 = for α = 2, k = 2 → S 2 = 0.27 etc. until S 2 is a minimum

4 Types of Multiple Reactions Series: A → B → C Parallel: A → D, A → U Independent: A → B, C → D Complex: A + B →C + D, A + C → E With multiple reactors, either molar flow or number of moles must be used (no conversion!) FlowBatch Rates: rate law for each reaction net rates: the sum of rates for each reaction given

example: 1) A + B → C + D-r 1A = k 1A C A C B -r 2A = k 1A C A C C 2) A + B → Eetc…. relative rates: only applied to a given reaction Stoich: example: A → B → C (1) A → B k 1 (2) B → C k 2 1) mole balance:2) rates: V=V 0 (constant batch) laws net rates