Catalytic conversion method for improving product distribution

Abstract

The invention discloses a catalytic conversion method for improving product distribution. The method comprises the following steps of: allowing high-quality raw oil and a thermally regenerative catalyst with lower activity and coarse size distribution to contact on the lower part of a reactor to undergo cracking reaction, performing selective hydrogen transfer reaction and isomerization reaction on the generated oil gas and a carbon-containing catalyst in upstream under a certain reaction environment, separating reaction products, and stripping and regenerating spent catalysts for recycle. By the method, under the condition that the isobutene content in the liquefied gas and the olefin content in gasoline group composition are increased, the dry gas yield and coke are obviously reduced; and the particles of the catalysts are more uniform, so the local temperature distribution is more uniform in the regenerating process, and the breaking tendency of the catalysts is correspondingly reduced.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More

AI Technical Summary

Benefits of technology

This patented technology allows for better control on producing high quality liquid fuel from crude oil without increasing its production costs due to traditional methods such as heat treatment and distillations. It achieves these benefits through adjustments made based upon factors like feedstock type, refining steps, and operating conditions.

Problems solved by technology

This patented technical problem addressed in the patented describes how to optimize the production of light paraffines while maximizing yields of other valuable products such as naptha and diesel fuel without increasing costs associated with upgrading heavy crude fractions like gasolensate.

Images