Lec10 - -=-= = = = ρ k MW C F v F C C V B B B B A = Finding the Rate Law(Done in a batch reactor A A A A A r dt dC V r V r dt dN = = = Assume

Info iconThis preview shows pages 1–19. Sign up to view the full content.

View Full Document Right Arrow Icon
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 before Lecture begins
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
Semibatch and Rate Law Intro Semibatch reactors example: A + B → C + D A B, v 0 Initial V t v V V v dt dV dt dV V V m v m t v dt dm 0 0 0 0 0 0 + = = = = = = ρ 1) Mole balances: A: in – out + gen = acc 0 - 0 + r A V = dN A /dt B: F B – 0 + r B V = dN B /dt dt dV C dt dC V dt V C d dt dN A A A A + = = ] [ t v V V V C v r dt dC V C v r dt dC V C C v r dt dC V C v r dt dC D D D C C C B B B B A A A 0 0 0 0 0 0 0 5 4 3 ) ( 2 1 + = - = - = - - = - =
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2) Rate Law: 3) Stoich: 4) Parameters: V C N V C N N N N X r r r r r r r r r r C kC r A A A A A A A A D A C A B D C B A B A A = = - = - = - = = = = - = - = 12 11 10 9 8 7 1 1 1 1 6 0 0 0 0 0 0 0 0 0 , , , , B A C k v V C
Background image of page 16
example: A + B → C + D + CO 2 1) Mole balances: mass balances: 2) Rate law: A B, v 0 CO 2 ρ MW V r v dt dV dt dV MW F v MW F m v m V m dt dm m m F V r V r dt dN V r dt dN F V r dt dN V r dt dN CO CO CO i CO CO D D C C B B B A A - = = - = = = = - - = = = + = = 2 2 2 2 2 0 0 0 0 0 0 6 0 5 4 3 2 1 B A A C kC r - =
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3) Stoich: 4) Parameters: 0 0 CO B A 13 12 1 1 0 1 9 C 8 7 2 A A A A A D A C A B B A N N N X r r r r r r r r V N V N C - = - =
Background image of page 18
Background image of page 19
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: -=-= = = = ρ , , , , , , , k MW C F v F C C V B B B B A = Finding the Rate Law (Done in a batch reactor) A A A A A r dt dC V r V r dt dN = = = Assume power law relation: Guess and check for α = 0, 1, 2 and check against experimental plot α A A A A kC dt dC kC r-= =-kt C C kt C C kt C r A A A A A A =-= -= = = = 1 1 ln 2 1 t t t C A 1/C A ln(C A0 /C A )...
View Full Document

This note was uploaded on 09/28/2011 for the course CHEMICAL E 534 taught by Professor Fogler during the Spring '11 term at University of Michigan-Dearborn.

Page1 / 19

Lec10 - -=-= = = = ρ k MW C F v F C C V B B B B A = Finding the Rate Law(Done in a batch reactor A A A A A r dt dC V r V r dt dN = = = Assume

This preview shows document pages 1 - 19. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online