By-product steam combined axial flow gas-solid phase fixed bed catalyst chamber

Abstract

A combined axial flow gas-solid phase fixed bed catalytic reactor capable of producing steam by product comprises a cylinder body, an upper end plate, an heat insulating reaction section, an in-pipe water cooling section, and a lower end plate. Two heat insulating layers are disposed on the heat reaction section; a material gas cold shocking device including a cold shocking distributor and a cold shocking pipe is disposed in the back of each heat insulating layer. A heat exchange medium manifold, an in-pipe water cooling section catalyst bed, heat exchange pipes, a heat exchange medium distribution pipe and a lower support plate are disposed in the in-pipe water cooling section. Cooling medium is filled in the heat exchange pipe. The catalyst is filled between the heat exchange pipes and has a filling height 50-95% of total height of the reactor catalyst layer. The reactor is specially design based on the characteristics of a reversible exothermic reaction, has the advantages of simple structure, convenient charge / discharge of catalyst; easy heating reduction of catalyst, simple temperature regulation of catalyst bed, recovery of high potential energy reaction heat and steam byproduct, and is suitable for large-scale chemical production.

Description

【Technical field】 [0001] The invention relates to the technical field of chemical reaction equipment, in particular to a combined axial flow gas-solid phase fixed-bed catalytic reactor for by-product steam. 【Background technique】 [0002] In reversible exothermic reactions such as methanol synthesis, ammonia synthesis, carbon monoxide conversion, hydrogenation of organic compounds, dimethyl ether synthesis, liquid fuel synthesis, and ethylene oxide synthesis, solid particle catalysts are used, and heat affects the reaction results. And the problem of catalyst recycling; in the large-scale industrial production process, it is necessary to apply fixed bed catalytic reactor. [0003] At present, the technologies relevant to the present invention mainly contain: [0004] (1) Linde reactor [0005] Compared with the shell-and-tube Lurgi reactor in Germany, when the catalyst is loaded in the Linde reactor, the catalyst is loaded between the tubes of the heat exchange tubes, and ...

AI Technical Summary

Problems solved by technology

The reactor is a water-cooled reactor, the catalyst is loaded in the shell side, and water flows in the heat exchange element; the heat exchange element is a plate heat exchanger; the reactor can use the original reactor shell to transform the original reaction The internal devices of the reactor reduce the investment in equipment; but its disadvantage is that the heat exchange elements of the reactor are more complicated

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