CATALYST MODIFICATION AND PROCESS DESIGN CONSIDERATIONS FOR THE OXIDATION OF LOW CONCENTRATIONS OF HYDROGEN-SULFIDE IN NATURAL-GAS

被引：13

作者：

CHOWDHURY, AI

TOLLEFSON, EL

机构：

[1] Department of Chemical and Petroleum Engineering, The University of Calgary, Calgary, Alberta

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1990年 / 68卷 / 03期

关键词：

activated carbon catalyst; catalytic oxidation; hydrogen sulfide oxidation; natural gas sweetening;

D O I：

10.1002/cjce.5450680315

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Low concentrations of hydrogen sulfide (H2S) in natural gas can be selectively oxidized over an activated carbon catalyst to elemental sulfur, water and a small fraction of sulfur dioxide (SO2). Efforts to improve catalyst performance and product sulfur quality have been made by a) modification of the catalyst composition b) removal of the heavy hydrocarbons from the feed and c) choice of reaction conditions. The use of a guard bed to absorb heavy hydrocarbons and operation at elevated pressures show positive results. A preliminary flow diagram incorporating these findings has been prepared for a small commercial unit capable of processing sour natural gas containing 1.0% H2S. Copyright © 1990 Canadian Society for Chemical Engineering

引用

页码：449 / 454

页数：6

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