Marine friends, let’s discuss the differences between catalysis and coking in terms of product yield, product quality, reaction principles, and more!

Differences between catalysis and coking in terms of product yield, product quality, and reaction principles: Reaction principle: Catalytic cracking involves reactions between a catalyst and crude oil under specific temperature and pressure conditions; these reactions are primarily cracking reactions that result in the production of gasoline, diesel, and gases, with dry gas and coke as by-products. Coking, on the other hand, involves reactions mainly of thermal cracking, which are physical reactions. Product yield: The products of catalysis are stable gasoline, liquefied gas, and catalytic diesel, with an overall yield of over 80%. The products of coking include coked liquefied gas, coked diesel, coked wax oil, and coke. Product quality: Catalytic diesel can be sold directly, while stable gasoline is sent to a gasoline hydrogenation unit for further desulfurization; liquefied gas is sent to a refining system for desulfurization before being fed into a gas fractionation unit for further separation. For coking products, coked gasoline and coked diesel are sent to a diesel hydrogenation unit for further desulfurization, coked liquefied gas is sent to a refining unit for desulfurization before being fed into a gas fractionation unit for further separation, and coke can be sold directly

From an environmental perspective, it is difficult to meet the environmental standards for coking; few new facilities choose to build coking units.

Some of the refineries around me have started to dismantle their coking units, and after that, they are building residue hydrogenation units