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Method for removing carbon dioxide in natural gas by utilizing novel high specific surface active carbon material

A carbon dioxide, high specific surface technology, applied in chemical instruments and methods, alkali metal oxides/hydroxides, fuels, etc., can solve the problem of few applications

Inactive Publication Date: 2011-04-27
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key to pressure swing adsorption technology is to choose the appropriate adsorption separation material, which is rarely used at present.

Method used

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  • Method for removing carbon dioxide in natural gas by utilizing novel high specific surface active carbon material
  • Method for removing carbon dioxide in natural gas by utilizing novel high specific surface active carbon material
  • Method for removing carbon dioxide in natural gas by utilizing novel high specific surface active carbon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Example 1: The activated carbon material of the present invention is used to remove carbon dioxide in natural gas.

[0103] The implementation steps are as follows:

[0104] First, the cylindrical reactor to be used in this example was cleaned with an ultrasonic cleaner of the type SY1200T produced by Shanghai Ultrasonic Instrument Equipment Co., Ltd. for 3 times, 10 minutes each time, and dried after cleaning.

[0105] The activated carbon material is loaded into the cylindrical reactor. Close the reactor, let nitrogen gas pass through the reactor, clean the reactor and the pipelines connected to each equipment; use an infrared heater to heat the activated carbon material to a temperature of 550K, and perform impurity removal treatment; restart Shanghai Alphapa The diffusion vacuum pump produced by Vacuum Equipment Co., Ltd. with the trade name K.KT is vacuumed until 10 -2 Pa, close the vacuum pump, and then start the molecular pump produced by Beijing Taiyueheng V...

Embodiment 2

[0108] Example 2: The activated carbon material of the present invention is used to remove carbon dioxide in natural gas.

[0109] The implementation steps are as follows:

[0110] First, the cylindrical reactor to be used in this example was cleaned with an ultrasonic cleaner of the type SY1200T produced by Shanghai Ultrasonic Instrument Equipment Co., Ltd. for 3 times, 10 minutes each time, and dried after cleaning.

[0111] The activated carbon material is loaded into the cylindrical reactor. Close the reactor, let nitrogen gas pass through the reactor, clean the reactor and the pipelines connected to each equipment; use an infrared heater to heat the activated carbon microsphere adsorbent to a temperature of 520K, and perform impurity removal treatment; restart Shanghai The diffusion vacuum pump produced by Alphapa Vacuum Equipment Co., Ltd. with the trade name K.KT is vacuumed until 10 -2 Pa, close the vacuum pump, and then start the molecular pump produced by Beijing...

Embodiment 3

[0114] Example 3: The activated carbon material of the present invention is used to remove carbon dioxide in natural gas.

[0115] The implementation steps are as follows:

[0116] First, the cylindrical reactor to be used in this example was cleaned with an ultrasonic cleaner of the type SY1200T produced by Shanghai Ultrasonic Instrument Equipment Co., Ltd. for 3 times, 10 minutes each time, and dried after cleaning.

[0117] The activated carbon material is loaded into the cylindrical reactor. Close the reactor, let nitrogen gas pass through the reactor, clean the reactor and the pipelines connected to each equipment; use an infrared heater to heat the activated carbon microsphere adsorbent to a temperature of 500K, and perform impurity removal treatment; restart Shanghai The diffusion vacuum pump produced by Alphapa Vacuum Equipment Co., Ltd. with the trade name K.KT is vacuumed until 10 -2 Pa, close the vacuum pump, and then start the molecular pump produced by Beijing...

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Abstract

The invention relates to a method for removing carbon dioxide in natural gas by utilizing a novel high specific surface active carbon material. The method comprises the following steps of: washing the active carbon material in a reactor by utilizing an inert gas; heating and removing impurities; vacuumizing, and introducing the natural gas to the reactor filled with the active carbon material; adsorbing the carbon dioxide and discharging the carbon dioxide-removed natural gas; then reducing the pressure to a normal pressure, and then desorbing a nitrogen gas through the active carbon material at the room temperature to obtain the carbon dioxide-removed natural gas. By utilizing the adsorption method of the active carbon material, the content of the carbon dioxide in the natural gas can be reduced to 0.05 volume%, the volume of the treated natural gas is more than 1,000 times that of the active carbon material of the method, the selectivity is still kept through adsorption and desorption cycles, therefore, the active carbon material of the method can satisfy the actual use requirement and has favorable application prospect.

Description

【Technical field】 [0001] The invention belongs to the technical field of natural gas processing. More specifically, the present invention relates to a method for removing carbon dioxide from natural gas by using a novel high specific surface activated carbon material. 【Background technique】 [0002] As people pay more and more attention to the living environment, natural gas is being paid more and more attention by countries all over the world as an economical and clean new energy due to its low pollution, low cost and easy processing. At present, natural gas accounts for 24% of energy consumption in the world, and it is expected to rise to 40% by the middle of this century (Zhang Haozhi, Ni Weidou, Jiang Hua, "Several natural gas DME solutions are used to solve domestic natural gas Discussion on application", [J]. Natural Gas Chemical Industry, 2004, 29(6): 28-33). my country is a country with a large amount of natural gas storage, but due to the traditional policy of "he...

Claims

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Application Information

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IPC IPC(8): C10L3/10B01J20/20B01J20/30B01J20/28
Inventor 邵晓红王东辉汪文川薛锐生丰震河曹达鹏
Owner BEIJING UNIV OF CHEM TECH
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