Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

* * * * * * * * * * * * * * * * * * * * * * * * *

**************************************************************************************************************************************************************************
Problem -1(Desulfurization unit of a NG reforming process - mole balance, extent of the reaction at equilibrium and equilibrium conversion calculation)
Consider the following gas-phase reaction between methyl mercaptan (CH3-S-H) and hydrogen (in a desulfurization unit of a NG reforming process) to form methane and hydrogen sulfide (H2(S)). takes place in a fixed bed reactor.
(desulfurization reaction)
CH3-S-H+H2harrCH4+H2S
(A)
(B)(C)
At equilibrium, the mole fractions of the four reactive species are related by the reaction equilibrium constant (assumed value).
Ky=yCyDyAyB=4.87
(i) Draw and label a flow diagram of the desulfurization unit (only)
(ii) Suppose the feed to the reactor consists of nA0;nB0;nC0 and nD0, moles of A,B,C, and D, respectively. Write expressions for the moles of each species in the final product, nA,nB,nC, and nD in terms of incoming moles and the extent () be of the reaction.
(iii) Then use these expressions and the given equilibrium constant to derive an equation for e, the equilibrium extent of reaction, in terms of nA0;nB0;nC0 and nD0.
(iv) If the feed to the reactor contains equimolar quantities of mercaptan (CH3-S-H) and hydrogen, calculate the equilibrium fractional conversion.
(v)(iv) It is desired to produce 70mol of methane starting with 75mol of mercaptan (CH3-S-H). If the reaction proceeds to equilibrium, how much hydrogen must be fed? What is the composition of the final product?
image text in transcribed

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Introduction To Chemical Engineering Thermodynamics

Authors: J.M. Smith, Hendrick Van Ness, Michael Abbott, Mark Swihart

9th Edition

1260721477, 978-1260721478

More Books

Students also viewed these Chemical Engineering questions