COMMERCIAL APPLICATION OF DEEP CATALYTIC CRACKING CATALYST FOR  HIGH PROPYLENE AND LOW COKE

PETROLEUM PROCESSING AND PETROCHEMICALS ›› 2022, Vol. 53 ›› Issue (3): 37-40.

COMMERCIAL APPLICATION OF DEEP CATALYTIC CRACKING CATALYST FOR HIGH PROPYLENE AND LOW COKE

Received:2021-10-18 Revised:2021-11-30 Online:2022-03-12 Published:2022-03-03

Abstract

Abstract: The commercial application of DMMC-3, a new special catalyst for catalytic cracking with characteristics of high propylene and low coke, developed by SINOPEC Research Institute of Petroleum Processing, has been carried out in the catalytic cracking unit of CNOOC Ningbo Daxie Petrochemical Co. The calibration results showed that the propylene yield and propylene concentration in LPG were increased by 0.56 and 1.74 percentage points , respectively. Compared with the previous generation of DMMC-2 catalyst, coke was decreased by 0.1 percentage point, in addition to increasing the concentration of ethylene in dry gas. The DMMC-3 catalyst could improve the yield and selectivity of propylene, reduce coke formation and increase the economic benefit of the unit.

Key words: deep catalytic cracking, catalyst, propylene, ethylene, coke

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COMMERCIAL APPLICATION OF DEEP CATALYTIC CRACKING CATALYST FOR HIGH PROPYLENE AND LOW COKE

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