PROCESS FOR THE FLUID CATALYTIC CRACKING OF OXYGENATED HYDROCARBON COMPOUNDS FROM BIOLOGICAL ORIGIN

摘要

The invention relates to a process for the fluid catalytic cracking of oxygenated hydrocarbon compounds from biological origin, the process comprising a) contacting a feed comprising the oxygenated hydrocarbon compounds with a fluid catalytic cracking catalyst at elevated temperature to produce a cracked products stream, the feed comprising an amount of sulphur; b) separating catalyst from the cracked products stream; c) separating a light fraction from the cracked products stream; and d) removing hydrogen sulphide from the light fraction by means of an amine treating process; wherein the fluid catalytic cracking process involves the presence or use of water and/or steam, and wherein the fluid catalytic cracking process furthermore comprises a working-up process of the cracked products stream, in which working-up process one or more chemical additives for reducing or hindering the formation of foam in amine liquids selected from defoamers and demulsifiers are added to the amine solvent in one or more amine treaters.