Water-cooled reactor for methanol synthesis

Abstract

The invention relates to a water-cooled reactor for methanol synthesis. The water-cooled reactor comprises a furnace body, a catalyst frame, a synthetic gas collection tube and heat exchange tubes arearranged in the furnace body, and 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 composedof a plurality of second heat exchange tubes; the heat exchange tubes spirally wind around the synthetic gas collection tube used as a core shaft in order to form a plurality of spaced heat exchangetube layers, and a water inlet pipeline comprises a first water inlet pipeline and a second water inlet pipeline; the inlets of the first heat exchange tubes are communicated with the first water inlet pipeline, the inlets of the second heat exchange tubes are communicated with the second water inlet pipeline, the second water inlet pipeline is provided with an on-off valve, and the sum of the heat exchange areas of the second heat exchange tubes is 15-40% of the total heat exchange area; and the outlets of the first heat exchange tubes and the outlets of the second heat exchange tubes are communicated with a steam pipeline.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a water-cooled methanol synthesis reactor. 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 the optimal temperature as much a...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a water-cooled methanol synthesis reactor in view of the current state of the art, which can better solve the boiler water gasification temperature and pressure fluctuations while satisfying the reaction temperature range of the methanol synthesis reaction catalyst at the initial and final stages problems, and then can achieve the goal of reducing engineering investment and optimizing the steam pipe network system of the whole plant, meeting the requirements of large-scale and energy-saving development of methanol synthesis units

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