method for reducing the amount of carbon monoxide and sulphur dioxide in the flue gas from the regeneration in a process for the catalytic cracking of hydrocarbons and sacomposition for use in catalytic cracking.

摘要

Sulfur oxides are removed from a gas and the sulfur is converted to hydrogen sulfide by the steps of: (1) reacting sulfur oxides in the gas with alumina to form a solid sulfur-containing compound and remove sulfur oxides from the gas; and (2) contacting the solid compound resulting from step (1) with a hydrocarbon at a temperature of about 800-1300. degree. F and reacting the solid sulfur-containing compound with components of the hydrocarbon to form hydrogen sulfide.