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High-efficiency energy-saving cracking furnace for producing hexafluoropropylene

A hexafluoropropylene and cracking furnace technology, applied in the field of cracking furnaces, can solve the problems of small production capacity, complicated maintenance, and high power consumption of old-fashioned cracking furnaces, and achieve the effects of large production capacity, obvious energy saving, and small heat loss

Inactive Publication Date: 2019-11-08
JIANGXI LEE & MAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high power consumption, small production capacity and complicated maintenance of the old cracking furnace, the present invention provides a high-efficiency and energy-saving cracking furnace for producing hexafluoropropylene

Method used

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  • High-efficiency energy-saving cracking furnace for producing hexafluoropropylene
  • High-efficiency energy-saving cracking furnace for producing hexafluoropropylene

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Embodiment 1

[0014] Such as Figure 1-2 As shown, a high-efficiency and energy-saving cracking furnace for producing hexafluoropropylene includes a shell 1, an insulating layer 3, a support angle 2, a feed pipe 5, a discharge pipe 6, a furnace pipe 4, and a heating plate 7. Described shell 1 is rectangular structure, and described heat-insulation layer 3 is installed inside shell 1, is provided with described furnace pipe 4 in cracking furnace, and furnace pipe 4 is placed in described heat-insulation layer 3, and furnace pipe 4 is connected in parallel in inlet. On the feed pipe 5 and the discharge pipe 6, the materials are uniformly distributed from the feed pipe 5 to the furnace pipe 4, and the materials after cracking are uniformly transferred from the discharge pipe 6 to the next process, and the furnace pipes 4 are interspersed There are several heating sheets 7, the material of the heating sheets 7 can be high temperature resistant nickel alloy 2080 material, and at the same time su...

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Abstract

The invention discloses a high-efficiency energy-saving cracking furnace for producing hexafluoropropylene, which relates to the technical field of cracking furnaces. The cracking furnace includes a shell body, supporting feet, a heat insulation layer, furnace tubes, a feeding tube, a discharging tube, and heating sheets, the heat insulation layer is installed around the cracking furnace to prevent heat loss, the supporting feet are welded to the bottom of the shell body, the five double "U" type furnace tubes are arranged inside the shell body, and a certain number of heating sheets with adjustable positions are installed between the furnace tubes. The cracking furnace has the advantages of high temperature regulation precision, small heat loss, obvious energy conversation, large production capacity, and long usage cycle and low maintenance frequency.

Description

technical field [0001] The invention relates to the technical field of cracking furnaces, in particular to a high-efficiency and energy-saving cracking furnace for producing hexafluoropropylene. Background technique [0002] It is an extremely important perfluorinated intermediate in the organic fluorine industry, especially as a monomer of fluorine-containing materials, and has a wide range of applications. There are many synthesis methods of hexafluoropropylene, mainly based on the pyrolysis of low-level fluorine-containing hydrocarbons with one to four carbon atoms. Among them, the industrial production mainly produces hexafluoropropylene through the cracking of tetrafluoroethylene, and the production of hexafluoropropylene through tetrafluoroethylene is usually carried out in a tubular cracking reactor. [0003] At present, most of the cracking furnaces used for the production of hexafluoropropylene adopt a three-stage single furnace tube cracking furnace, and are equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J6/00C07C17/26C07C21/18
CPCB01J6/008C07C17/26C07C21/18Y02P20/10
Inventor 张茂明杨作宁李华曾小伍刘仙王兵
Owner JIANGXI LEE & MAN CHEM
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