THE METHOD OF PRODUCTION INCREASE OF BENZENE FROM HYDROCARBON FEEDSTOCK

摘要

A method for production increase of benzene from hydrocarbon mixture is provided to combine the process of manufacturing aromatic hydrocarbon mixture and LPG from hydrocarbon mixture and the solvent extracting process for separating polar hydrocarbon from hydrocarbon mixture. The method for production increase of benzene from hydrocarbon mixture including the steps of: (a) separating hydrocarbon mixture into hydrocarbon flow of less than C6 and hydrocarbon flow of more than C7; (b) separating non-aromatic hydrocarbon flow and aromatic carbon flow from hydrocarbon of less than C6 through solvent extracting process; (c) collecting benzene from aromatic hydrocarbon flow; (d) flowing hydrocarbon of more than C7 and hydrogen into on reaction area; (e) converting hydrocarbon of more than C7 to aromatic hydrocarbon by dealkylation or transalkylation and then converting it to non-aromatic hydrocarbon by hydrocracking; (f) separating the reaction product of step(e) into upper flow and a bottom flow; and (g) collecting benzene, toluene, xylene and aromatic compound of more than C9 from the bottom flow.