INTEGRATING REFINING AND PETROCHEMICALS FEEDSTOCKS THROUGH A NOVEL FCC PROCESS

INTEGRATING REFINING AND PETROCHEMICALS FEEDSTOCKS THROUGH A NOVEL FCC PROCESS. The 6th Saudi Engineering Conference, KFUPM, Dhahran, December 2002.

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Abstract

KFUPM has piloted a novel high-severity fluid catalytic cracking (HS-FCC) process that can increase the yield of light olefins to 40wt% of the product, versus the normal 10wt%. The process combines mechanical modifications with changes in process variables and catalyst formulations. The main operating regime of this novel refining process is high reaction temperature, short contact time, high catalyst/oil ratio and a special down-flow reactor system. The paper presents a brief experimental study on the cracking of vacuum gas oil using equilibrated FCC catalyst in a 0.1 bbl/d circulating downer pilot plant. The results show a significant increase in the yield of light olefins, mainly propylene, as well as an improvement in gasoline quality and overall conversion. By adding 10wt% ZSM-5 to the catalyst, the pilot plant yielded 18wt% each of propylene and butylenes or a total increase of 37% compared to base catalyst. A comparative economics of a base refinery (with a conventional FCC) and an upgraded refinery (with HS-FCC) is presented. About 28% of return on investment can be achieved for propylene and para-xylene recovery in the upgraded HS-FCC refinery.

Item Type: Article
Subjects: Chemical Engineering
Divisions: College Of Engineering Sciences > Chemical Engineering Dept
Depositing User: Users 4447 not found.
Date Deposited: 31 May 2008 13:50
Last Modified: 01 Nov 2019 16:27
URI: http://eprints.kfupm.edu.sa/id/eprint/1572