In the production of ethylene oxide by partial oxidation of ethylene, the following thermochemical reactions take place: 2C2H4 + O2 → 2C¿H¼O C2H4 + 302 → 2CO2+2H;O AH: - -210.14 kJ/mol AH: = -1411.2 kJ/mol In a pilot reactor feeding 10% C;H4 and the rest air, 25% conversion of C¿H4 and an 80% fractional yield of C¿H«O are attained. The reactor feed rate is 20.0 mol/s (air is 21% O; and 79% N2). Calculate the exit composition of the reactor and the heat removal needed to retain isothermal conditions.

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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can some help i do not understand this 

2 Ca Hy + O,
> 2 C2 H4 O.
Ain= -210.14 kaJrmo)
C2H4 + 302
200, ↑ + 2H20
DHp = -1411.2 kalmol
Gui nen that,
20 mol/ S.
Total
Feed
Basis :
1s.
Now, negHain
Rox0.1) mol = 2 mol.
moles of GH4 eacted
moles of C, H4 fed.
moles of CHq reacted
Now,
conversion
=
moles of CH4 raseted el
= 0,5 mole
0, 25
2.
Now, fractional yield
moles of C,H4 0 torum
Show sidebar
moles of C2H4 rearted
modes of Cetta o formed
moles of Cata D formed
0.4 moles.
Moles of l Ha heacted (to form C, HqD) = 0.4 moles.
Mo les of ez Hq reacted (to form co2 & H20) = (0.5 –0.4)moles
0, 8
0,5
:.
%3D
0,1 moles
5.
Transcribed Image Text:2 Ca Hy + O, > 2 C2 H4 O. Ain= -210.14 kaJrmo) C2H4 + 302 200, ↑ + 2H20 DHp = -1411.2 kalmol Gui nen that, 20 mol/ S. Total Feed Basis : 1s. Now, negHain Rox0.1) mol = 2 mol. moles of GH4 eacted moles of C, H4 fed. moles of CHq reacted Now, conversion = moles of CH4 raseted el = 0,5 mole 0, 25 2. Now, fractional yield moles of C,H4 0 torum Show sidebar moles of C2H4 rearted modes of Cetta o formed moles of Cata D formed 0.4 moles. Moles of l Ha heacted (to form C, HqD) = 0.4 moles. Mo les of ez Hq reacted (to form co2 & H20) = (0.5 –0.4)moles 0, 8 0,5 :. %3D 0,1 moles 5.
In the production of ethylene oxide by partial oxidation of ethylene, the following
thermochemical reactions take place:
2C2H4 + O2 → 2C¿H40
C2H4 + 302 → 2CO2+ 2H2O
ΔH우--210.14 kJ/mol
ΔHρ=-1411.2 kJ/mol
In a pilot reactor feeding 10% C¿H4 and the rest air, 25% conversion of C2H4 and an 80%
fractional yield of C¿H4O are attained. The reactor feed rate is 20.0 mol/s (air is 21% O2 and
79% N2). Calculate the exit composition of the reactor and the heat removal needed to retain
isothermal conditions.
can some re-do this, im not quite understanding
Moles of Co2 formed
Moles of Hz0 forumed = Q.2x)moles
- 0,2 moles.
Moles of Oz reauired for Cz Ha O production =0,4 moles
= 0.2 moles.
: Moles of Oz besot contumed for cOz emission=0.1×3) rele)
= 0,3 moles
Modes of Oz in the feed
stream
20X0,9 x0,21 moles
= 378 moles.
- o text
Transcribed Image Text:In the production of ethylene oxide by partial oxidation of ethylene, the following thermochemical reactions take place: 2C2H4 + O2 → 2C¿H40 C2H4 + 302 → 2CO2+ 2H2O ΔH우--210.14 kJ/mol ΔHρ=-1411.2 kJ/mol In a pilot reactor feeding 10% C¿H4 and the rest air, 25% conversion of C2H4 and an 80% fractional yield of C¿H4O are attained. The reactor feed rate is 20.0 mol/s (air is 21% O2 and 79% N2). Calculate the exit composition of the reactor and the heat removal needed to retain isothermal conditions. can some re-do this, im not quite understanding Moles of Co2 formed Moles of Hz0 forumed = Q.2x)moles - 0,2 moles. Moles of Oz reauired for Cz Ha O production =0,4 moles = 0.2 moles. : Moles of Oz besot contumed for cOz emission=0.1×3) rele) = 0,3 moles Modes of Oz in the feed stream 20X0,9 x0,21 moles = 378 moles. - o text
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