Variable temperature water-cooled reactor for methanol synthesis

Abstract

The invention relates to a variable temperature water-cooled reactor for methanol synthesis. The water-cooled reactor comprises a furnace body, a catalyst frame, a feed gas distribution tube and heatexchange tubes, the inlets of the heat exchange tubes are respectively connected with water inlet pipelines, and the outlets of the heat exchange tubes are connected with steam pipelines; the heat exchange tubes comprise a first heat exchange tube group composed of a plurality of first heat exchange tubes and a second heat exchange tube group composed of a plurality of second heat exchange tubes;the cross sections of all the first heat exchange tube along the catalyst frame are uniformly arranged in a cavity between the catalyst frame and the feed gas distribution tube; the second heat exchange tubes are uniformly arranged along the outer circumferences of the corresponding first heat exchange tubes, and at least three of the first heat exchange tubes are uniformly distributed surroundingevery second heat exchange tube; the quantity of the water inlet pipelines is two, and every water inlet pipeline is provided with a valve; the inlets of the first heat exchange tubes are communicated with the first water inlet pipeline, and the inlets of the second water exchange tubes are communicated with the second water inlet pipeline; and the outlets of the first heat exchange tubes and theoutlets of the second heat exchange tubes are communicated with the steam pipelines.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a water-cooled reactor for synthesizing methanol with variable temperature. Background technique [0002] Methanol is an important chemical basic raw material and clean liquid fuel, widely used in organic synthesis, dyes, pesticides, medicine and other industries. Methanol synthesis is a reversible exothermic reaction, and the reaction temperature determines the equilibrium and reaction rate of the reaction system. As the reaction temperature increases, the reaction rate increases, but the equilibrium constant of the reaction decreases. For specific catalysts and operating environments, there is an optimal methanol synthesis reaction temperature range. The method of realizing the optimal reaction temperature is often adopted in the industry such as continuous heat exchange, multi-stage cooling, water heat transfer, etc., so that the temperature of the catalyst bed can be distributed along ...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a variable temperature methanol synthesis water-cooled reactor in view of the current state of the art, which can better solve the problem of boiler water gasification temperature and The problem of pressure fluctuation can be solved, so as to realize the reduction of engineering investment and the optimization of the steam pipe network system of the whole plant, and meet the large-scale and energy-saving development requirements of the methanol synthesis unit

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