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Tubular reactor and reaction method for alcoholizing propenyl chloride

A tubular reactor, propylene chlorohydrin technology, applied in chemical instruments and methods, chemical methods for reacting liquid and gaseous media, organic chemistry, etc. , to achieve the effect of reducing operating costs, overcoming the chlorohydrin reaction of propylene, and being easy to scale up

Inactive Publication Date: 2003-01-01
SINOPEC JINLING PETROCHEMICAL CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with the co-oxidation process, the traditional chlorohydrin process is simple, the process is short, and the equipment requirements are not high, but the chlorohydrin reaction mechanism and the chlorohydrin reaction equipment limit the processing capacity and comprehensive benefits of the device

Method used

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  • Tubular reactor and reaction method for alcoholizing propenyl chloride
  • Tubular reactor and reaction method for alcoholizing propenyl chloride

Examples

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example 1

[0021] 1) Structure: Chlorine gas predissolution reaction tube length 6m, diameter Φ51mm;

[0022] The propylene chlorohydrination reaction tube is 6m long and has a diameter of Φ51mm.

[0023] Number of reaction units n=5

[0024] 2) Raw material index:

[0025] Propylene purity > 90vol% (measured 94vol%)

[0026] Chlorine purity > 99.5vol%

[0027] 3) Experimental conditions:

[0028] Process water volume 8t / h

[0029] Reaction temperature 10~20℃

[0030] Chlorine, propylene feed pressure 0.3MPa

[0031] Single-pipe chlorine feed flow rate 5.64m 3 / h, liquid-gas ratio 1418L / m 3

[0032] Single tube propylene feed flow rate 5.61m 3 / h, liquid-gas ratio 1426L / m 3

[0033] Single-tube pure propylene feed flow 5.27m 3 / h

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Abstract

The present invention relates to industrial production of epoxy propane. The tubular reactor consists of 5-80 serially connected reaction units, and each unit consists of one piece of chlorine predissolving reaction tube and one piece of propylene chlorohydrinizing reaction tube. The outlet of the last propylene chlorohydrinizing reaction tube is the outlet of the propylene chloride, the chlorine inlet of the first chlorine predissolving reaction tube is the inlet of the technological water, all the inlets of the propylene chlorohydrinizing reaction tubes are connected to the propylene material pipe, all the gas inlets of the chlorine predissolving reaction tubes are connected to the chlorine material pipe, and propylene material and chlorine material are fed into all reaction units simultaneously.

Description

1. Technical field: [0001] The invention relates to a tubular reaction device in chemical production, in particular to a device for industrialized production of propylene oxide in propylene oxide. 2. Background technology: [0002] Propylene oxide (hereinafter referred to as: PO), also known as propylene oxide, is the third largest derivative of propylene after polypropylene and acrylonitrile, and is mainly used for the synthesis of polyether polyol and propylene glycol for polyurethane. Among them, polyether polyols use PO, accounting for about 70% of the total consumption of PO. [0003] Industrialized PO production technologies are mainly chlorohydrin method and co-oxidation method, both of which are chlorohydrin method in China. The chlorohydrination of propylene is the main reaction step of the PO process of the chlorohydrin method, and the domestic industrialized devices are basically tower-type and tube-tower combination. In the tower reaction, propylene enters the ...

Claims

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Application Information

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IPC IPC(8): B01J10/00C07C29/62C07C29/64C07C31/36C07D305/04
Inventor 吴龙国许建农裴天钧
Owner SINOPEC JINLING PETROCHEMICAL CO LTD
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