Answered: Hydrogen sulfide (H2S) gas in petroleum…

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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Hydrogen sulfide (H₂S) gas in petroleum refinery is to be removed from a 1387kg/h gas mixture consist of 16 % w.w H₂S into air, using counter current absorption column.

Water is used as solvent in the absorption column. The water flow rate is 3 times the gas mixture flow rate.

The air mole percent at the top of the column is 97.5%.

The air consists of 21.9% oxygen and 78.1% nitrogen.

Calculate;

5. Draw the unit and tabulate the results around the column (Mole fraction, Mole percentage, flow rate) for all streams. Then check the overall balance.

Note; Don’t round numbers; Minimum 4 decimals (0.0000)

Given

A) The air consists of 21.9% oxygen and 78.1% nitrogen.

B) The atomic weight of;

1. The hydrogen atom is 1

2. The Oxygen atom is 16

3. The sulfur atom is 32

4. 1The nitrogen atom is 14

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