CATALYTIC CRACKING METHOD AND CATALYTIC CRACKER USED THEREIN

摘要

PROBLEM TO BE SOLVED: To provide a catalytic cracking method wherein a hydrolysis reaction and a decarboxylation reaction are carried out separately in catalytic cracking of a raw material biomass to promote the hydrolysis reaction for sufficiently decomposing the raw material biomass into fatty acid; a decomposition product principally consisting of the fatty acid obtained by the hydrolysis is subjected to catalytic cracking with a decarboxylation cracking catalyst to promote progress of the decarboxylation reaction for improving a recovery ratio of a kerosene and light oil fraction in a cracked oil; and high quality cracked oil can be obtained with a short reaction time since the hydrolysis reaction and the decarboxylation reaction are advanced quickly.;SOLUTION: A catalytic cracking method has a constitution including a hydrolysis step of bringing a hydrolysis catalyst and raw material biomass into mutual contact in a first reaction vessel heated to 350-475°C to hydrolyze the raw material biomass and obtaining a decomposition product principally consisting of fatty acid; and a decarboxylation step of bringing a decarboxylation cracking catalyst and the fatty acid into mutual contact in a second reaction vessel heated to 350-475°C to decarboxylate the fatty acid.;COPYRIGHT: (C)2014,JPO&INPIT