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A Claus plant converts gaseous sulfur compounds to elemental sulfur, thereby eliminating emission of sulfur into the atmosphere. The process can be especially important in the gasification of coal, which contains significant amounts of sulfur that is converted to H2S during

A Claus plant converts gaseous sulfur compounds to elemental sulfur, thereby eliminating emission of sulfur into the atmosphere. The process can be especially important in the gasification of coal, which contains significant amounts of sulfur that is converted to H2S during

Introduction to Chemical Engineering Thermodynamics
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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Provide Basis, Find and Complete solution, the topic is material balance with unit reaction (stoichiometry ratio). ty
A Claus plant converts gaseous sulfur compounds to elemental sulfur, thereby eliminating emission of sulfur into the atmosphere. The process can be especially important in the gasification of coal, which contains significant amounts of sulfur that is converted to H2S during gasification. In the Claus process, the H2S-rich product gas recovered from an acid-gas removal system following the gasifier is split, with one-third going to a furnace where the hydrogen sulfide is burned at 1 atm with a stoichiometric amount of air to form SO2. 3 - H2S +- 02→ SO2 + H2O The hot gases leave the furnace and are cooled prior to being mixed with the remainder of the H2S-rich gases. The mixed gas is then fed to a catalytic reactor where hydrogen sulfide and SO2 react to form elemental sulfur - 2H;S + SO2 → 2H2O + 3S The coal available to the gasification process is 0.6 wt% sulfur, and you may assume that all of the sulfur is converted to H2S, which is then fed to the Claus plant. Estimate the feed rate of air to the Claus plant in kg/kg coal. (Hint: Assume that air is composed of 21% O2 and 79% N2 )
Transcribed Image Text:A Claus plant converts gaseous sulfur compounds to elemental sulfur, thereby eliminating emission of sulfur into the atmosphere. The process can be especially important in the gasification of coal, which contains significant amounts of sulfur that is converted to H2S during gasification. In the Claus process, the H2S-rich product gas recovered from an acid-gas removal system following the gasifier is split, with one-third going to a furnace where the hydrogen sulfide is burned at 1 atm with a stoichiometric amount of air to form SO2. 3 - H2S +- 02→ SO2 + H2O The hot gases leave the furnace and are cooled prior to being mixed with the remainder of the H2S-rich gases. The mixed gas is then fed to a catalytic reactor where hydrogen sulfide and SO2 react to form elemental sulfur - 2H;S + SO2 → 2H2O + 3S The coal available to the gasification process is 0.6 wt% sulfur, and you may assume that all of the sulfur is converted to H2S, which is then fed to the Claus plant. Estimate the feed rate of air to the Claus plant in kg/kg coal. (Hint: Assume that air is composed of 21% O2 and 79% N2 )
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