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Method for removing oxygen in chlorination reaction gas

A chlorination reaction and gas technology, applied in the field of chlor-alkali chemical gas treatment, can solve the problems of complex operation process and low oxygen removal efficiency

Inactive Publication Date: 2017-04-26
XINJIANG CORPS MODERN GREEN CHLOR ALKALI CHEM ENG RES CENT LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of complex operation process and low oxygen removal efficiency in the prior art, the present invention provides a method for removing oxygen in chlorination reaction gas, which has the characteristics of simple process flow, high oxygen removal efficiency and good oxygen removal effect, and is especially suitable for Removal of Oxygen in Chlorination Reaction Gas in Preparation of Chlorinated Polymer Resin by Gas-solid Phase Method

Method used

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  • Method for removing oxygen in chlorination reaction gas

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Effect test

Embodiment 1

[0044] The device for removing oxygen in the chlorination reaction gas by applying a method for removing oxygen in the chlorination reaction gas as described above includes a gas buffer tank 1, a reactor 2, a gas distribution device 3, and an external field trigger are installed in the reactor 2. Condition 4. The outlet of the buffer tank 1 is connected to the inlet of the reactor 2 .

[0045] The second substance is sulfur dioxide gas, and the application of the above-mentioned device to remove the oxygen in the chlorination reaction gas includes the following process:

[0046] (1) The chlorination reaction gas including chlorine, hydrogen chloride and oxygen and sulfur dioxide gas enter the gas buffer tank 1 , and the chlorination reaction gas and sulfur dioxide gas are mixed uniformly in the gas buffer tank 1 .

[0047] (2) Mix evenly in the gas buffer tank 1, and at the same time, the pressure-stabilized chlorination reaction gas and sulfur dioxide gas leave the gas buffe...

Embodiment 2

[0051] The device for removing oxygen in the chlorination reaction gas by applying a method for removing oxygen in the chlorination reaction gas as described above includes a gas buffer tank 1, a reactor 2, a gas distribution device 3, and an external field trigger are installed in the reactor 2. Condition 4. The outlet of the buffer tank 1 is connected to the inlet of the reactor 2 .

[0052] The second substance is sulfur dioxide gas and hydrogen sulfide gas, and the removal of oxygen in the chlorination reaction gas by using the above-mentioned device includes the following process:

[0053] (1) The chlorination reaction gas including chlorine, hydrogen chloride and oxygen, sulfur dioxide gas, and hydrogen sulfide gas enter the gas buffer tank 1 together, and the chlorination reaction gas, sulfur dioxide gas, and hydrogen sulfide gas are mixed uniformly in the gas buffer tank 1;

[0054] (2) Mix evenly in the gas buffer tank 1, and at the same time, the pressure-stabilized...

Embodiment 3

[0058] The device for removing oxygen in the chlorination reaction gas by applying a method for removing oxygen in the chlorination reaction gas as described above includes a gas buffer tank 1, a reactor 2, a gas distribution device 3, and an external field trigger are installed in the reactor 2. Condition 4. The outlet of the buffer tank 1 is connected to the inlet of the reactor 2 .

[0059] The second substance is sulfur dioxide gas, hydrogen sulfide gas, hydrogen gas, and the application of the above-mentioned device to remove the oxygen in the chlorination reaction gas includes the following process:

[0060] (1) The chlorination reaction gas including chlorine, hydrogen chloride and oxygen, sulfur dioxide gas, hydrogen sulfide gas, and hydrogen enter the gas buffer tank 1 together, and the chlorination reaction gas, sulfur dioxide gas, hydrogen sulfide gas, and hydrogen are in the gas buffer tank 1 mix evenly;

[0061] (2) Mix evenly in the gas buffer tank 1, and at th...

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Abstract

The invention discloses a method for removing oxygen in chlorination reaction gas. The specific technological process includes that the chlorination reaction gas and second matter enter a reactor, the oxygen in the chlorination reaction gas and the second matter spontaneously react or a reaction happens under the outer field initiating condition to generate third matter, and third matter plays no role on a chlorination reaction or the generated role is not as remarkable as the role on the oxygen. The second matter is gas containing any one or two or more of sulfur dioxide, nitric oxide, hydrogen sulfide and the like; and the second matter can also be composed of any one or two or more of iron, sodium sulfite, an oxime type deoxidant, an amine type deoxidant, quinoline compounds, erythorbic acid and sodium salt thereof, and the like. The method for removing the oxygen in the chlorination reaction gas has the beneficial effects of being simple in technological process, high in deoxidizing efficiency, good in deoxidizing effect and the like, and is especially suitable for removing oxygen in chlorination reaction gas in the process of preparing chlorinated high polymer resin through a gas-solid phase method.

Description

technical field [0001] The invention belongs to the technical field of gas treatment in chlor-alkali chemical industry, in particular to a method for removing oxygen in chlorination reaction gas. Background technique [0002] Patent CN100340581C introduces a method for low-temperature plasma chlorination of high molecular polymers. The method can produce qualified chlorinated high polymer products, but there are some problems, such as high chlorination reaction temperature, and the produced products The quality is low and the whiteness is poor. Compared with the imported chlorinated high polymer products, there is still a significant gap. The reason for the analysis is that the gas-solid phase reaction system will control the oxygen content of the system through the replacement method and vacuum method before and during the production process. However, due to the limitation of the process technology, the trace amount of oxygen in the system is difficult to be removed remove...

Claims

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Application Information

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IPC IPC(8): B01D53/76B01D53/46C01B17/74
CPCB01D53/46B01D53/76B01D2251/508B01D2251/51B01D2257/104B01D2259/804C01B17/74C08F8/20C08F8/22
Inventor 郭靖刘军熊新阳靖志国臧缪洋王银亮刘东阳苏钵陈占江王丽轩卫华崔明生
Owner XINJIANG CORPS MODERN GREEN CHLOR ALKALI CHEM ENG RES CENT LTD
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