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Pre-reactor for esterification of ethylene glycol

A technology of ethylene glycol ester and reactor, applied in the field of ethylene glycol esterification pre-reactor, can solve the problems of high investment and operation cost, low use efficiency, large system resistance, etc., achieve small air flow resistance, improve conversion rate, Ease of heat exchange

Active Publication Date: 2019-12-17
CHINA SHENHUA COAL TO LIQUID & CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(1) The system has large resistance and occupies a large area; (2) The investment and operation costs are high; (3) The dead zone is large and the use efficiency is low

Method used

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  • Pre-reactor for esterification of ethylene glycol
  • Pre-reactor for esterification of ethylene glycol
  • Pre-reactor for esterification of ethylene glycol

Examples

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0028] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0029] combine figure 1 , figure 2 , the present invention provides a kind of ethylene glycol esterification pre-reactor, and described ethylene glycol esterification pre-reactor comprises shell 1, and the air inlet 2 that is used to pass into synthetic gas is opened on described shell 1 and An air outlet 3 for discharging the reacted gas. The housing 1 is provided with a reaction channel 4 that communicates with the air inlet 2 and can be introduced into oxygen. The reaction channel 4 is surrounded by a A heat exchange tube 5 that extends in the radial direction of the body 1 and can be cooled by a cooling medium, the inlet of the heat exchange tube 5 communicates with the reac...

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Abstract

The invention relates to a gas reaction apparatus and provides a pre-reactor for esterification of ethylene glycol. The pre-reactor for esterification of ethylene glycol comprises a shell (1), whereina gas inlet (2) for introducing synthesis gas and a gas outlet (3) for discharging reacted gas are formed in the shell (1); a reaction channel (4) which is communicated with the gas inlet (2) and canbe used for introducing oxygen is formed in the shell (1); a heat exchange tube (5) which extends along the radial direction of the shell (1) and can be cooled by a cooling medium is arranged aroundthe reaction channel (4); an inlet of the heat exchange tube (5) is communicated with the reaction channel (4); and an outlet of the heat exchange tube (5) is communicated with the interior of the shell (1). The pre-reactor for esterification of ethylene glycol disclosed by the invention facilitates heat exchange of a quick reaction, is beneficial for improving the heat exchange efficiency of thepre-reactor and the conversion rate of reactants, and is correspondingly reduced in size design.

Description

technical field [0001] The invention relates to a gas reaction device, in particular to an ethylene glycol esterification pre-reactor. Background technique [0002] Ethylene glycol (MEG) is an important organic chemical raw material, mainly used in the production of polyester fiber, antifreeze, unsaturated polyester resin, lubricant, plasticizer, nonionic surfactant and explosives, etc. It is widely used in paint, photographic developer, brake fluid and ink industries, as a solvent and medium for ammonium perborate, and in the production of special solvents such as glycol ether. [0003] At present, the fixed bed reactor of ethylene glycol basically adopts the shell and tube reactor. The tubular reactor is simple to manufacture, but it has certain limitations in improving the reaction capacity. In order to improve the reaction capacity, it is mainly solved by increasing the heat exchange area, that is, increasing the diameter of the tubes or increasing the number and lengt...

Claims

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Application Information

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IPC IPC(8): B01J12/00B01J19/24B01J4/00C07C31/20
CPCB01J12/00B01J19/2415B01J4/002C07C31/202B01J2219/00081B01J2204/002
Inventor 吴勇吴金华夏婷婷许朝阳
Owner CHINA SHENHUA COAL TO LIQUID & CHEM CO LTD
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