DEACTIVATION AND REGENERATION OF CLAUS PROCESS CATALYSTS

Authors
KOVALEV VN CHEKHOVSKII VG
Citation
Vn. Kovalev et Vg. Chekhovskii, DEACTIVATION AND REGENERATION OF CLAUS PROCESS CATALYSTS, Russian journal of applied chemistry, 66(11), 1993, pp. 1864-1871
Citations number
10
Categorie Soggetti
Chemistry Applied
Journal title
Russian journal of applied chemistry → ACNP
ISSN journal
10704272
Volume
66
Issue
11
Year of publication
1993
Part
1
Pages
1864 - 1871
Database
ISI
SICI code
1070-4272(1993)66:11<1864:DAROCP>2.0.ZU;2-F
Abstract
A study was made of fresh, deactivated, and regenerated titania- and a lumina-based catalysts used in the Claus process. It is shown that irr eversible physicochemical transformations occur at heat treatment temp eratures up to 1050 degrees C, which may be accompanied by a decrease in the specific surface of catalysts. Thermodynamic calculations are p erformed for sulfate decomposition reactions. A method is proposed for regenerating alumina-based catalysts at lower temperatures under an i nert gas atmosphere.