CATALYST FOR SELECTIVE OXIDATION OF SULPHUR COMPOUNDS

摘要

The present invention is related to a catalyst supported for the selective oxidation of sulphur compounds of the tail gas from the Claus process or streams with an equivalent composition to elemental sulphur or sulphur dioxide (SO2). It is also the object of the present invention, a process for the preparation of a catalyst of this type, as well as the process of selective oxidation of sulphur compounds to elemental sulphur using the catalyst of the invention, as well as the process of catalytic incineration of the tail gas from the Claus process using the catalyst of the present invention.

主权项

1. Catalyst for selective oxidation of compounds containing sulphur comprising
a support material comprising aluminium oxide, a silicon oxide, an aluminium-silicon mixed oxide or mixtures thereof; and a catalytically active material consisting of cobalt oxide, which is supported on said support material;where the catalyst has the following properties:
a specific surface area, measured with nitrogen porosimetry and using the BET method, comprised from 10 to 150 m2/g; a pore volume, measured with mercury intrusion porosimetry, comprised from 0.05 to 10 cc/g; an average pore diameter, measured with mercury intrusion porosimetry, comprised from 2 to 50 nm; and a crush strength higher than 3 Kp.