Catalytic conversion method of hydrocarbon oil

Abstract

A catalytic conversion method of hydrocarbon oil comprises the following steps: leading the mixture of preheated light hydrocarbon oil and heavy hydrocarbon oil in a reactor from the bottom to contact a catalyst from a regenerator to carry out catalytic cracking reaction, the mixture and the catalyst flowing upward together, leading the reaction product and a spent catalyst with coke out of the reactor from an outlet on the upper part of the reactor, the reaction product and the spent catalyst entering into an oiling agent separation system, recycling the separated catalyst after stripping, burning and regenerating and the separated reaction oil and gas entering into a subsequent separation system to separate the product. The method provided by the invention can reduce the yield of the coke and increase the yields of the gasoline and the liquefied gas.

Description

technical field

[0001] The present invention pertains to the catalytic cracking of hydrocarbon oils in the absence of hydrogen. Specifically, the present invention is a catalytic cracking method using a mixture of light hydrocarbon oil and heavy hydrocarbon oil as raw material. Background technique

[0002] Catalytic cracking is one of the important technical means for lightening heavy oil. With the heavy and inferior quality of crude oil and the increasing demand for light oil products, the source of catalytic cracking raw oil continues to expand, and the heavy conversion of catalytic cracking raw oil And the deterioration is also increasing. Since the catalytic cracking reaction and thermal cracking reaction occur together in the catalytic cracking process, especially after the raw material oil is heavy and inferior, the atomization effect of the raw material becomes worse, and the coke yield increases significantly.

[0003] CN101215476A discloses a catalytic cracking c...

Images