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A Variable Temperature Isothermal Methanol Synthesis Reactor

A methanol synthesis and reactor technology, applied in chemical instruments and methods, preparation of hydroxyl compounds, preparation of organic compounds, etc., can solve problems such as pressure fluctuations, achieve the effects of avoiding difficult control, reducing equipment investment, and maintaining productivity

Active Publication Date: 2021-10-08
SINOPEC NINGBO ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a variable temperature isothermal methanol synthesis reactor in view of the status quo of the prior 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

Method used

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  • A Variable Temperature Isothermal Methanol Synthesis Reactor
  • A Variable Temperature Isothermal Methanol Synthesis Reactor
  • A Variable Temperature Isothermal Methanol Synthesis Reactor

Examples

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Embodiment 1

[0038] Such as Figure 1 to Figure 4 As shown, the variable temperature isothermal methanol synthesis reactor includes:

[0039] The furnace body 1 is a conventional structure, including an upper head 11 , a lower head 12 and a cylinder 13 connected between the upper head 11 and the lower head 12 .

[0040] The catalyst frame 2 is arranged in the cylinder body 13 . Catalyst frame 2 can choose any one in the prior art according to needs, and this embodiment is radial reactor, and raw material gas enters the catalyst frame of catalyst frame 2 from raw material gas distribution pipe 3; The side wall of catalyst frame is provided with Multiple synthesis gas outlets; raw material gas is discharged from the synthesis gas outlets on the catalyst frame after methanol synthesis catalytic reaction, enters the channel between the catalyst frame and the furnace body, enters the synthesis gas outlet through the channel, and finally The furnace body 1 is sent out through the synthesis gas...

Embodiment 2

[0057] Such as Figure 5 to Figure 8 As shown, in this embodiment, the first heat exchange tubes 41 and the second heat exchange tubes 42 are arranged in one-to-one correspondence. In this embodiment, the second heat exchange tube 42 is spirally wound on the first heat exchange tube 41, as Figure 8 As shown, the two are connected together by a pipe clamp 43.

[0058] Each of the first heat exchange tubes 41 and the corresponding second heat exchange tubes 42 can also be arranged upright, and the corresponding two first heat exchange tubes and the second heat exchange tubes are positioned through a connecting piece; or, it can also be the first heat exchange tube A heat exchange tube is helically wound on the second heat exchange tube; or, two corresponding first heat exchange tubes and second heat exchange tubes may be helically wound together.

[0059] The inner diameter of the second heat exchange tube 42 is one-half to one-fifth of the inner diameter of the first heat ex...

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Abstract

The invention relates to a variable temperature isothermal methanol synthesis reactor, which comprises a furnace body and a catalyst frame arranged in the furnace body, a raw material gas distribution pipe is arranged in the middle of the catalyst frame, and a heat exchange pipe is arranged in the catalyst frame Inside, the inlet of the heat exchange tube is connected to the water inlet pipe, and the outlet of the heat exchange tube is connected to the steam pipe; it is characterized in that there are at least two sets of the heat exchange tubes, and the number of the water inlet pipe and the water outlet pipe is the same as that of the heat exchange pipe The number of groups of heat pipes is matched; the inlets of each group of heat exchange tubes are respectively connected to their corresponding water inlet pipes, and the outlets of each group of heat exchange pipes are respectively connected to steam pipes; and each water inlet pipe is provided with a valve.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a variable temperature isothermal 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 te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02C07C29/152C07C31/04
CPCB01J8/0242B01J8/0285B01J2208/00194B01J2208/02C07C29/00C07C31/04
Inventor 许仁春徐洁相红霞代小波
Owner SINOPEC NINGBO ENG