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Title: High temperature desulfurization of synthesis gas

Abstract

This patent describes a continuous process for the production of desulfurized synthesis gas, fuel gas, or reducing gas. It includes: reacting sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel by partial oxidation with a free-oxygen containing gas and in the presence of a temperature moderator to produce a hot steam of synthesis gas, reducing gas, or fuel gas comprising H{sub 2}, CO, CO{sub 2}, H{sub 2}S, COS and at least one gaseous material selected form the group consisting of H{sub 2}O, N{sub 2}, CH{sub 4}, NH{sub 3}, Ar, and containing entrained material comprising particulate carbon, and molten slag; cooling the process gas stream to a temperature in the range of about 1800{degrees}F. to 1200{degrees} F. while solidifying the molten slag; contacting the sulfur-containing gas in the process gas stream in the radiant cooler with a calcium-containing material after substantially all of the molten slag has solidified; reacting in the radiant cooler the calcium-containing material with sulfur-containing constituents in the gas stream to produce particulate matter comprising calcium sulfide; and discharging from the radiant cooler a partially cooled process stream of synthesis gas, or fuel gas containing entrained calcium sulfide particulate matter, particulate carbon, and slag; and in comparisonmore » with a gas stream produced without the introduction of the calcium containing additive.« less

Inventors:
;
Publication Date:
OSTI Identifier:
6961843
Patent Number(s):
US 4880439; A
Application Number:
PPN: US 7-190707A
Assignee:
Texaco Inc., White Plains, NY
Resource Type:
Patent
Resource Relation:
Patent File Date: 5 May 1988
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 54 ENVIRONMENTAL SCIENCES; FUEL GAS; DESULFURIZATION; SYNTHESIS GAS; AIR POLLUTION ABATEMENT; PARTIAL OXIDATION PROCESSES; CHEMICAL REACTIONS; FLUIDS; FUELS; GAS FUELS; GASES; POLLUTION ABATEMENT; THERMOCHEMICAL PROCESSES; 030300* - Natural Gas- Drilling, Production, & Processing; 030800 - Natural Gas- Environmental Aspects; 540120 - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-)

Citation Formats

Najjar, M S, and Robin, A M. High temperature desulfurization of synthesis gas. United States: N. p., 1989. Web.
Najjar, M S, & Robin, A M. High temperature desulfurization of synthesis gas. United States.
Najjar, M S, and Robin, A M. Tue . "High temperature desulfurization of synthesis gas". United States.
@article{osti_6961843,
title = {High temperature desulfurization of synthesis gas},
author = {Najjar, M S and Robin, A M},
abstractNote = {This patent describes a continuous process for the production of desulfurized synthesis gas, fuel gas, or reducing gas. It includes: reacting sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel by partial oxidation with a free-oxygen containing gas and in the presence of a temperature moderator to produce a hot steam of synthesis gas, reducing gas, or fuel gas comprising H{sub 2}, CO, CO{sub 2}, H{sub 2}S, COS and at least one gaseous material selected form the group consisting of H{sub 2}O, N{sub 2}, CH{sub 4}, NH{sub 3}, Ar, and containing entrained material comprising particulate carbon, and molten slag; cooling the process gas stream to a temperature in the range of about 1800{degrees}F. to 1200{degrees} F. while solidifying the molten slag; contacting the sulfur-containing gas in the process gas stream in the radiant cooler with a calcium-containing material after substantially all of the molten slag has solidified; reacting in the radiant cooler the calcium-containing material with sulfur-containing constituents in the gas stream to produce particulate matter comprising calcium sulfide; and discharging from the radiant cooler a partially cooled process stream of synthesis gas, or fuel gas containing entrained calcium sulfide particulate matter, particulate carbon, and slag; and in comparison with a gas stream produced without the introduction of the calcium containing additive.},
doi = {},
url = {https://www.osti.gov/biblio/6961843}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {11}
}