NDLI: High temperature COS hydrolysis catalysed by γ-Al2O3

Content Provider	Springer Nature Link
Author	Huang, Hongmei Young, Nicola Williams, B. Peter Taylor, Stuart H. Hutchings, Graham
Copyright Year	2006
Abstract	The COS hydrolysis reaction (COS + H2O = CO2 + H2S) using γ-Al2O3at 220 °C is described and discussed. The stoichiometric reaction of COS in the absence of water proceeds and the extent of reaction is comparable to the moisture content of the alumina that can be removed during TGA. The reaction of COS and H2O is long lived at this temperature but the sulphur balance based on H2S is ca. 80%. It is found that elemental sulphur is deposited in the reactor and on the catalyst during this reaction. Reaction in the presence of H2 increases the sulphur balance to 100% and no sulphur is deposited on the catalyst. The beneficial effect of hydrogen is demonstrated by mixing sulphur with γ-Al2O3 which on reaction with H2 leads to the formation of COS and H2S. The addition of formic acid to the reactants leads to a reversible loss of activity, but detailed long term studies show that formic acid is not formed during the operation of the catalyst over a wide range of conditions.
Starting Page	243
Ending Page	246
Page Count	4
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	110
Issue Number	3-4
e-ISSN	1572879X
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2006-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	COS hydrolysis γ-alumina formic acid Physical Chemistry Industrial Chemistry/Chemical Engineering Catalysis Pharmacy
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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