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Study of the reduction of sulfur dioxide to elemental sulfur by carbon monoxide on a La/sub 0/ /sub 5/ Sr/sub 0/ /sub 5/ CoO/sub 3/ catalyst

Journal Article:

Abstract

A study of the reduction of sulfur dioxide to elemental sulfur by carbon monoxide on a La/sub 0/ /sub 5/ Sr/sub 0/ /sub 5/ CoO/sub 3/ catalyst a perovskite oxide, to determine the effects of oxygen and water on SO2 reduction showed that in the presence of 5 to 16% oxygen, the reaction between sulfur dioxide and carbon monoxide still occurred if there was sufficient carbon monoxide in the gas to react with all the oxygen. At 600C, all the sulfur dioxide was removed at 5 to 16% oxygen levels. Water vapor at 2% did not adversely affect the reaction. The unwanted by-products, hydrogen disulfide and carbonyl sulfide, were reduced at contact times below 0.25 sec. During the reaction, the catalyst itself reacted with sulfur to give metal sulfides. When reagent grade CO/sub 2/O/sub 3/ was substituted for perovskite oxide, the maximum conversion of 98% of sulfur dioxide was attained at 550C, but an unacceptably high concentration of carbonyl sulfide was formed; within 1 hr, the sulfur dioxide conversion fell to 60%. The perovskite oxide reaction may be useful in removing sulfur dioxide from fosill fuel stack gases.
Publication Date:
Dec 01, 1979
Product Type:
Journal Article
Reference Number:
EDB-85-137039
Resource Relation:
Journal Name: J. Chem. Technol. Biotechnol.; (United Kingdom); Journal Volume: 29:12
Subject:
01 COAL, LIGNITE, AND PEAT; 02 PETROLEUM; CARBON MONOXIDE; CHEMICAL REACTIONS; FLUE GAS; DESULFURIZATION; OXIDES; CATALYTIC EFFECTS; PEROVSKITES; SULFUR DIOXIDE; REDUCTION; BY-PRODUCTS; CHEMICAL REACTION YIELD; EXPERIMENTAL DATA; FOSSIL FUELS; OXYGEN; WATER; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DATA; ELEMENTS; ENERGY SOURCES; FUELS; GASEOUS WASTES; HYDROGEN COMPOUNDS; INFORMATION; NONMETALS; NUMERICAL DATA; OXYGEN COMPOUNDS; SULFUR COMPOUNDS; SULFUR OXIDES; WASTES; YIELDS; 010800* - Coal, Lignite, & Peat- Waste Management; 020800 - Petroleum- Waste Management
OSTI ID:
5462194
Research Organizations:
City Univ. of London, England
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JCTBD
Submitting Site:
HEDB
Size:
Pages: 713-722
Announcement Date:
Sep 01, 1985

Journal Article:

Citation Formats

Hibbert, D B, and Tseung, A C.C. Study of the reduction of sulfur dioxide to elemental sulfur by carbon monoxide on a La/sub 0/ /sub 5/ Sr/sub 0/ /sub 5/ CoO/sub 3/ catalyst. United Kingdom: N. p., 1979. Web.
Hibbert, D B, & Tseung, A C.C. Study of the reduction of sulfur dioxide to elemental sulfur by carbon monoxide on a La/sub 0/ /sub 5/ Sr/sub 0/ /sub 5/ CoO/sub 3/ catalyst. United Kingdom.
Hibbert, D B, and Tseung, A C.C. 1979. "Study of the reduction of sulfur dioxide to elemental sulfur by carbon monoxide on a La/sub 0/ /sub 5/ Sr/sub 0/ /sub 5/ CoO/sub 3/ catalyst." United Kingdom.
@misc{etde_5462194,
title = {Study of the reduction of sulfur dioxide to elemental sulfur by carbon monoxide on a La/sub 0/ /sub 5/ Sr/sub 0/ /sub 5/ CoO/sub 3/ catalyst}
author = {Hibbert, D B, and Tseung, A C.C.}
abstractNote = {A study of the reduction of sulfur dioxide to elemental sulfur by carbon monoxide on a La/sub 0/ /sub 5/ Sr/sub 0/ /sub 5/ CoO/sub 3/ catalyst a perovskite oxide, to determine the effects of oxygen and water on SO2 reduction showed that in the presence of 5 to 16% oxygen, the reaction between sulfur dioxide and carbon monoxide still occurred if there was sufficient carbon monoxide in the gas to react with all the oxygen. At 600C, all the sulfur dioxide was removed at 5 to 16% oxygen levels. Water vapor at 2% did not adversely affect the reaction. The unwanted by-products, hydrogen disulfide and carbonyl sulfide, were reduced at contact times below 0.25 sec. During the reaction, the catalyst itself reacted with sulfur to give metal sulfides. When reagent grade CO/sub 2/O/sub 3/ was substituted for perovskite oxide, the maximum conversion of 98% of sulfur dioxide was attained at 550C, but an unacceptably high concentration of carbonyl sulfide was formed; within 1 hr, the sulfur dioxide conversion fell to 60%. The perovskite oxide reaction may be useful in removing sulfur dioxide from fosill fuel stack gases.}
journal = {J. Chem. Technol. Biotechnol.; (United Kingdom)}
volume = {29:12}
journal type = {AC}
place = {United Kingdom}
year = {1979}
month = {Dec}
}