of cat- The cat- metric ength wate)? of the nds? the rate law is h. Redo parts (b) and (c) for these conditions. P10-20, The vapor-phase cracking of gas-oil in Example 10-6 is carried out over a different catalyst, for which would you recommend? with '=5x10-5 kmol kg-cat-s-atm (a) Assuming that you can vary the entering pressure and gas velocity, what operating conditions (b) What could go wrong with the conditions you chose? Now assume the decay law is da dt = kpacite with kp=100 dm³ at 400°C mol-s where the concentration, Cenke, in mol/dm³, can be determined from a stoichiometric table. (c) For a temperature of 400°C and a reactor height of 15 m, what gas velocity do you recommend? (d) The reaction is now to be carried in an STTR 15 m high and 1.5 m in diameter. The gas velocity is 2.5 m/s. You can operate in the temperature range between 100 and 500°C. What temperature do you choose, and what is the corresponding conversion? (e) What would the temperature-time trajectory look like for a CSTR? Additional information: ER ED = 3000 cal/mol = 15,000 cal/mol m.)

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Related questions
Question
of cat-
The cat-
metric
ength
wate)?
of the
nds?
the rate law is
h. Redo parts (b) and (c) for these conditions.
P10-20, The vapor-phase cracking of gas-oil in Example 10-6 is carried out over a different catalyst, for which
would you recommend?
with '=5x10-5
kmol
kg-cat-s-atm
(a) Assuming that you can vary the entering pressure and gas velocity, what operating conditions
(b) What could go wrong with the conditions you chose?
Now assume the decay law is
da
dt
=
kpacite
with kp=100
dm³
at 400°C
mol-s
where the concentration, Cenke, in mol/dm³, can be determined from a stoichiometric table.
(c) For a temperature of 400°C and a reactor height of 15 m, what gas velocity do you recommend?
(d) The reaction is now to be carried in an STTR 15 m high and 1.5 m in diameter. The gas velocity
is 2.5 m/s. You can operate in the temperature range between 100 and 500°C. What temperature
do you choose, and what is the corresponding conversion?
(e) What would the temperature-time trajectory look like for a CSTR?
Additional information:
ER
ED
= 3000 cal/mol
= 15,000 cal/mol
m.)
Transcribed Image Text:of cat- The cat- metric ength wate)? of the nds? the rate law is h. Redo parts (b) and (c) for these conditions. P10-20, The vapor-phase cracking of gas-oil in Example 10-6 is carried out over a different catalyst, for which would you recommend? with '=5x10-5 kmol kg-cat-s-atm (a) Assuming that you can vary the entering pressure and gas velocity, what operating conditions (b) What could go wrong with the conditions you chose? Now assume the decay law is da dt = kpacite with kp=100 dm³ at 400°C mol-s where the concentration, Cenke, in mol/dm³, can be determined from a stoichiometric table. (c) For a temperature of 400°C and a reactor height of 15 m, what gas velocity do you recommend? (d) The reaction is now to be carried in an STTR 15 m high and 1.5 m in diameter. The gas velocity is 2.5 m/s. You can operate in the temperature range between 100 and 500°C. What temperature do you choose, and what is the corresponding conversion? (e) What would the temperature-time trajectory look like for a CSTR? Additional information: ER ED = 3000 cal/mol = 15,000 cal/mol m.)
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