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Unformatted text preview: procedure along with the spreadsheet and the graph. 43. The reaction rate for the production of ammonia on a promoted iron catalyst is written at 300 atm as 2 2 3 2 3 2 2 3 2 2 2 1 1 2 2 3 2 N H NH N / / NH H H k [ y y y /( K P )] r [ y y y ] --= + where at 900 F, = 0.00140, k 1 = 1.20 lbmol/ft 3 hr, and K = 4.67(10-3 ). For the ammonia plant described in problem 42 above and producing 40,000 ton/yr of ammonia, you are to find the volume of the plug-flow reactor at 900 F and 300 atm with a recycle ratio of 4 and a single-pass conversion of 20 %. a. Obtain the rate expression for the reactor in terms of single-pass conversion. Do not neglect the inerts in your expression. b. Using the result in part a above find the reactor volume numerically. Page 1...
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This note was uploaded on 03/17/2010 for the course CHEM ENG ?? taught by Professor Claytonradke during the Fall '09 term at University of California, Berkeley.
- Fall '09