A process for combusting sulfur-containing material, a hydrocarbon conversion process including such a combustion process in a catalyst regeneration step and a composition suitable for use as a catalyst in the hydrocarbon conversion process.

摘要

In a process for converting hydrocarbons using a catalyst which is periodically regenerated to remove carbonaceous deposits, the amount of sulfur oxides exiting the catalyst regeneration zone is reduced by using a conversion catalyst comprising a mixture containing, as a major component, solid particles capable of promoting hydrocarbon conversion at hydrocarbon conversion conditions, and, as a minor component, discrete entities comprising at least one spinel, preferably an alkaline earth metal-containing spinel. The mixture of solid particles and discrete entities and a process for reducing the concentration of sulfur oxide emitted from a process of combusting sulfur-containing material by effecting the combustion in the presence of metal-containing spinel are also disclosed.