Flexible Co-Processing Of Refinery Middle Distillate In FCC To Maximize Gasoline And LPG

Abstract

Catalytic cracking of middle distillate fractions is a viable option to cope with the decreasing automotive diesel requirement, optimize throughput of catalytic crackers in case of shortage of feed and maximize gasoline and LPG production. Cracking performance of diesel range hydrocarbon streams from atmospheric and vacuum distillation towers, hydrocracker, delayed cooker and catalytic cracker was tested with respect to maximizing gasoline production. Subsequently an optimum blending ratio with vacuum gas oil was deduced followed by simulated cracking of said blend to calculate the potential yield benefit. A Refinery trial was conducted on basis of laboratory studies and a sustainable net value addition has been observed.