Fluidized bed dividing wall heat exchange regeneration coupling device

Abstract

The invention provides a fluidized bed dividing wall heat exchange regeneration coupling device, which comprises a first fluidization barrel equipped with a cavity; a coupling piece which is at leastpartially arranged in the cavity and divides the cavity into a heat exchange chamber and a regeneration chamber which are independent of each other, wherein a first input port and a first output portare formed in the heat exchange chamber and a second input port and a second output port are formed in the regeneration chamber; a heat exchange pipe that penetrates through the coupling piece, a first heat exchange part extending into the heat exchange cavity and a second heat exchange part extending into the regeneration cavity are arranged on the heat exchange pipe, wherein a phase change medium is arranged in the heat exchange pipe. Herein, the first heat exchange part and the second heat exchange part are used for allowing a phase change medium to exchange heat with catalysts in the heatexchange chamber and the regeneration chamber respectively, and the phase change medium can be subjected to phase change after heat exchange so as to flow between the first heat exchange part and thesecond heat exchange part; therefore, the embodiment of the invention provides a fluidized bed dividing wall heat exchange regeneration coupling device which can effectively utilize waste heat and adjust heat balance of different systems.

Description

technical field [0001] The present application relates to the field of fluidized beds, and in particular to a heat exchange regeneration coupling device for partition walls of a fluidized bed. Background technique [0002] With the increasing quality of petroleum resources and the increasing impact of vehicle exhaust emissions on the atmospheric environment, the requirements for the quality of gasoline for vehicles are becoming more and more stringent worldwide. Motor gasoline standards require gasoline sulfur content to be lower than 10ppm, olefin content to be lower than 15v%, and octane number to be maintained above 93. Therefore, the hallmark of producing high-quality gasoline is to increase the octane number at the same time as reducing the sulfur content and olefin content. The catalytic cracking process produces more than 70% of gasoline, more than 30% of diesel and 30% of propylene, so it has become an economical and environmentally friendly method to produce high-q...

AI Technical Summary

Problems solved by technology

In the shell-and-tube heat exchange structure, the particle flow and heat transfer in the tube are limited by the size of the heat exchange tube, which affects the fluidization and heat transfer effects

Images