Hydrocracking technology for increase production of low solidifying point diesel oil and ethylene producing raw material

Abstract

A hydrocracking process for increasing the output of low-setting-point diesel oil and the raw material used to prepare ethylene features that the Y-zeolite hydrocracking catalyst for bearing the cracking load of 50-90 wt% of petroleum hydrocarbon and the beta-zeolite one for bearing that of 10-50 wt% of petroleum hydrocarbon are hierarchically filled.

Description

technical field

[0001] The invention relates to a hydrocracking process, which is used for processing heavy petroleum hydrocarbon materials, producing more low-condensing-point diesel oil and producing ethylene materials at the same time. Background technique

[0002] Hydrocracking is one of the main refining processes to produce high-quality light oil products from inferior heavy distillate oil. Because the hydrocracking process can meet the increasingly stringent environmental protection requirements, especially the production of jet fuel and clean diesel products that are urgently needed by the market, the technology of this process has developed rapidly. For hydrocracking units aiming to produce jet fuel and clean diesel in the largest quantities, the selectivity of the catalyst is very important.

[0003] The cracking catalyst for hydrocracking is currently using Y-type zeolite as the main cracking component. The Y-type hydrocracking catalyst has good ring-opening acti...