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Esterification reactor and esterification reaction method

A technology of esterification reaction and reactor, which is applied in the field of esterification reactor, can solve the problems of energy waste and low energy utilization rate, and achieve the effects of reducing production cost, reducing floor space, and reducing heat loss

Active Publication Date: 2020-08-14
CHINA SHENHUA COAL TO LIQUID & CHEM CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem of energy waste caused by the low energy utilization rate existing in the prior art

Method used

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  • Esterification reactor and esterification reaction method
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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0022] One aspect of the present invention provides an esterification reactor, comprising a shell 17, an oxidation device 2 and an esterification device 1 arranged above the oxidation device 2, the oxidation device 2 and the esterification device 1 are both arranged on the The interior of the housing 17 is arranged so that the oxidation device 2 and the esterification device 1 are vertically integrated.

[0023] The esterification reactor of the present invention integrates the oxidation device and the esterification device, so that a large amount of heat carried by the gas in the oxidation device is passed into the esterification device, and the heating device ...

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Abstract

The invention relates to the technical field of coal-to-ethylene glycol, in particular to an esterification reactor and an esterification reaction method. The esterification reactor comprises a shell,an oxidation device and an esterification device arranged above the oxidation device, and the oxidation device and the esterification device are both arranged in the shell, so that the oxidation device and the esterification device are integrally arranged in the vertical direction. According to the esterification reactor disclosed by the invention, the oxidation device and the esterification device are integrated, a large amount of heat carried by gas in the oxidation device is introduced into the esterification device, and a heating device at the bottom of the original esterification deviceis removed, so that the manufacturing cost of the esterification reactor is reduced, the heat is effectively utilized, the heat loss is reduced, and the esterification reaction cost is reduced. The occupied area is reduced by the integrated esterification reactor, and the production cost is further reduced.

Description

technical field [0001] The invention relates to the technical field of coal-to-ethylene glycol, in particular to an esterification reactor and an esterification reaction method. Background technique [0002] At present, the esterification reactor of ethylene glycol basically adopts the combination of oxidation reactor and esterification reactor. In the oxidation reactor, nitric oxide and oxygen generate nitrogen dioxide, and nitrogen dioxide and methanol pass into the esterification reactor to generate methyl nitrite. The esterification reactor generally takes the form of a rectification tower, and a heating device is installed at the bottom to increase the temperature inside the rectification tower, so that methyl nitrite can be separated from the mixed gas liquid and discharged from the upper gas phase outlet. During the esterification process, the reaction temperature in the oxidizer is too high to easily cause energy waste, and the heating device at the bottom of the es...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24B01D3/00C07C203/00C07C201/04
CPCB01J19/24B01D3/009C07C201/04C07C203/00
Inventor 吴勇吴金华张华夏婷婷许朝阳
Owner CHINA SHENHUA COAL TO LIQUID & CHEM CO LTD