Patent ID: 11890589
Assignee: RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 14:
15. A liquid acid catalyzed alkylation reaction process, wherein the alkylation reaction of isobutane with a C3-C5 alkene fraction is carried out in the presence of a liquid acid in n reactors, and a inlet temperature of a first reactor amongst said n reactors is −10° C. to 20° C.,
m reactors among said n reactors, including the first reactor, are each provided with an x reaction zone, a y reaction zone and a z reaction zone;
a diluted alkylation reaction raw material is distributed to said m reactors,
in each of said m reactors, an alkylation reaction stream firstly flows into the x reaction zone and then successively flows through the y reaction zone and the z reaction zone, and a mixing intensity of the y reaction zone is greater than a mixing intensity of the x reaction zone, which is greater than a mixing intensity of the z reaction zone, wherein n≥1 and n≥m;
the reaction stream has a residence time in the x reaction zone of 0.01-10 seconds, a residence time in they reaction zone of 0.01-10 seconds, and a residence time in the z reaction zone of 0.1-15 minutes.