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A heating system for a difluorochloromethane reactor

A difluorochloromethane and reactor technology, which is applied in the field of heating systems, can solve problems such as difficult effective transfer of heat, long-term stable operation of equipment affecting the reaction, and uneven heat transfer.

Active Publication Date: 2021-08-20
LIAOCHENG LUXI CHEM ENG DESIGN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to meet the production needs, for the large-volume chlorodifluoromethane reactor, the traditional jacketed heating method has problems such as uneven heat transfer and difficulty in effectively transferring heat to the inside of the reactor, which affects the reaction and the long-term stable operation of the equipment.

Method used

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  • A heating system for a difluorochloromethane reactor

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Embodiment Construction

[0022] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0023] Depend on figure 1 It can be seen that a heating system of a difluorochloromethane reactor includes a jacketed reactor 1 and an external circulation heating unit 2, wherein steam provides heat for the reactor 1 from the outside through the jacket 7, and the external circulation heating unit 2 passes through the coil 3 to supply heat to reactor 1 from the inside.

[0024] Depend on figure 1 It can be known that the jacketed reactor 1 is a difluorochloromethane jacketed reactor, the operating pressure of the reactor is 1.6Mpa, and the operating temperature is 80°C. Saturated steam enters from the jacket steam inlet 8, and steam...

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Abstract

The invention discloses a heating system for a difluorochloromethane reactor, which comprises: a jacketed reactor and an external circulation heating unit, wherein steam heats the reactor from the outside through the jacket, and the external circulation heating unit heats the reactor from the inside through a coil Heat the reactor. On the basis of the original jacketed steam heating method, the system adds an external circulation heating unit. The heat exchange coil in the external circulation heating unit is inserted into the reactor and coupled with the reactor. Using chloroform as the heat transfer medium, the external circulation heating unit recycling. The heating system can effectively improve the heat transfer effect inside the reactor, achieve the purpose of stably maintaining the internal temperature of the reactor, ensuring the continuous progress of the reaction, and prolonging the operation period of the equipment.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a heating system for a difluorochloromethane reactor. Background technique [0002] Tetrafluoroethylene is an important chemical raw material in the plastic and resin industry, mainly produced by cracking difluorochloromethane, and the synthesis process of difluorochloromethane: after mixing chloroform (alias: chloroform) and hydrogen fluoride in advance, through the pipeline transported to the chlorodifluoromethane reactor filled with antimony pentachloride as a catalyst, through external heating, the reaction temperature of the two reached 75-85°C, and the pressure was 1.4-1.7Mpa, and the reaction produced chlorodifluoromethane gas from The top of the reactor is transported to the subsequent equipment through pipelines. [0003] The difluorochloromethane reactor is the key equipment for the production of difluorochloromethane. Generally, a single set of difluorochlor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00C07C17/20C07C19/10
CPCB01J19/0013B01J2219/00087C07C17/206C07C19/10
Inventor 闫志强刘玉春杨莉崔珂赵蒙刘雷孙道成孙义帅张伟李文文吕艳懂梁秀敏陈景刚杨哲邢瑞鹏高兴利张敏
Owner LIAOCHENG LUXI CHEM ENG DESIGN
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