PROCEDEU DE INCINERARE CATALITICA A GAZELOR REZIDUALE CONTININD HIDROGEN SULFURAT

摘要

A process for reducing the total sulphur content of Claus process off-gas is described. The reduction is achieved by using in the oxydation step a catalyst comprising 0.6% to 10 by weight bismuth, and 0.5 to 5% by weight copper, based on the total weight of the catalyst in which catalyst the weight percentage of bismuth exceeds the weight percentage of copper. Conveniently the catalyst is used on a support, such as alumina or silica.