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Title: Process for removal of sulfur compounds from fuel gases

Abstract

Fuel gases such as those produced in the gasification of coal are stripped of sulfur compounds and particulate matter by contact with molten metal salt. The fuel gas and salt are intimately mixed by passage through a venturi or other constriction in which the fuel gas entrains the molten salt as dispersed droplets to a gas-liquid separator. The separated molten salt is divided into a major and a minor flow portion with the minor flow portion passing on to a regenerator in which it is contacted with steam and carbon dioxide as strip gas to remove sulfur compounds. The strip gas is further processed to recover sulfur. The depleted, minor flow portion of salt is passed again into contact with the fuel gas for further sulfur removal from the gas. The sulfur depleted, fuel gas then flows through a solid absorbent for removal of salt droplets. The minor flow portion of the molten salt is then recombined with the major flow portion for feed to the venturi.

Inventors:
 [1];  [1]
  1. Richland, WA
Publication Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
OSTI Identifier:
863062
Patent Number(s):
US 4086323
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; removal; sulfur; compounds; fuel; gases; produced; gasification; coal; stripped; particulate; matter; contact; molten; metal; salt; gas; intimately; mixed; passage; venturi; constriction; entrains; dispersed; droplets; gas-liquid; separator; separated; divided; major; minor; flow; portion; passing; regenerator; contacted; steam; carbon; dioxide; strip; remove; processed; recover; depleted; passed; flows; solid; absorbent; recombined; feed; intimately mixed; solid absorbent; fuel gases; particulate matter; fuel gas; carbon dioxide; molten metal; molten salt; metal salt; sulfur compounds; remove sulfur; sulfur removal; strip gas; gas entrains; gas-liquid separator; sulfur compound; /423/

Citation Formats

Moore, Raymond H, and Stegen, Gary E. Process for removal of sulfur compounds from fuel gases. United States: N. p., 1978. Web.
Moore, Raymond H, & Stegen, Gary E. Process for removal of sulfur compounds from fuel gases. United States.
Moore, Raymond H, and Stegen, Gary E. Sun . "Process for removal of sulfur compounds from fuel gases". United States. https://www.osti.gov/servlets/purl/863062.
@article{osti_863062,
title = {Process for removal of sulfur compounds from fuel gases},
author = {Moore, Raymond H and Stegen, Gary E},
abstractNote = {Fuel gases such as those produced in the gasification of coal are stripped of sulfur compounds and particulate matter by contact with molten metal salt. The fuel gas and salt are intimately mixed by passage through a venturi or other constriction in which the fuel gas entrains the molten salt as dispersed droplets to a gas-liquid separator. The separated molten salt is divided into a major and a minor flow portion with the minor flow portion passing on to a regenerator in which it is contacted with steam and carbon dioxide as strip gas to remove sulfur compounds. The strip gas is further processed to recover sulfur. The depleted, minor flow portion of salt is passed again into contact with the fuel gas for further sulfur removal from the gas. The sulfur depleted, fuel gas then flows through a solid absorbent for removal of salt droplets. The minor flow portion of the molten salt is then recombined with the major flow portion for feed to the venturi.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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