US Patent No. : 5961818
This invention relates to a process for production of LPG and high octane aromatic hydrocarbon from non-economically viable petroleum feedstock, which comprises passing the same feedstock through zinc-aluminosilicate molecular sieve (Zn-ZSM-5), in a reactor at a temperature in the range of 300-600° C. pressure 1 to 30 atmosphere liquid hourly space velocity of 1 to 10 hr-1 and nitrogen to hydrocarbon molar ratio 1 to 4.