Oil gas recycling special activated carbon and preparation method thereof

A technology of activated carbon and oil and gas, which is applied in the field of activated carbon and its preparation, can solve problems in the research and development stage, and achieve the effect of low price, excellent indicators and operability

Active Publication Date: 2012-05-02
CCTEG CHINA COAL RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adsorption is currently the most cost-effective oil and gas recovery method, and it is also the main oil and gas recovery method currently used in China. However, the production process of domestic oil and gas recovery adsorbent (activated carbon for oil and gas recovery) is still in the research and development stage. Therefore, it is urgent to provide an oil and gas recovery Special activated carbon to meet domestic demand

Method used

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  • Oil gas recycling special activated carbon and preparation method thereof
  • Oil gas recycling special activated carbon and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, the preparation of special activated carbon for oil and gas recovery

[0032] (1) Anthracite, potassium hydroxide and urea are mixed to obtain a mixture (wherein the mass fraction ratio of anthracite, potassium hydroxide and urea is 100:2:1), and then the mixture is crushed and pulverized to obtain More than 90% of the mixed powder is less than 180 meshes; the obtained mixed powder is subjected to columnar molding to obtain a columnar material;

[0033] (2) Carbonize the obtained columnar material to obtain a carbonized product, the final temperature of the carbonization is 600°C, and the heating rate is controlled to be 5°C / min;

[0034] (3) Activate the carbonization product obtained by steam to obtain the special activated carbon for oil and gas recovery, wherein the activation temperature is 900° C., and the activation time is controlled to be 3 hours.

[0035] The performance index of the activated carbon prepared in this embodiment is shown in Table...

Embodiment 2

[0036] Embodiment 2, the preparation of special activated carbon for oil and gas recovery

[0037] (1) Mix bituminous coal, sodium hydroxide and ammonium sulfate to obtain a mixture (wherein the mass-number ratio of bituminous coal, sodium hydroxide and ammonium sulfate is 100:5:3), and then the mixture is crushed and pulverized Finally, more than 90% of the mixed powder less than 180 meshes are obtained; the obtained mixed powder is subjected to columnar molding to obtain a columnar material;

[0038] (2) Carbonize the obtained columnar material to obtain a carbonized product. The final temperature of the carbonization is 550° C., and the heating rate is controlled to be 5° C. / min;

[0039] (3) Activate the carbonized product obtained by steam to obtain the special activated carbon for oil and gas recovery, wherein the activation temperature is 800° C., and the activation time is controlled to be 4 hours.

[0040] The performance indexes of the activated carbon prepared in t...

Embodiment 3

[0041] Embodiment 3, the preparation of special activated carbon for oil and gas recovery

[0042] (1) Mix lignite, potassium nitrate and ammonium chloride to obtain a mixture (wherein the ratio of mass and number of lignite, potassium nitrate and ammonium chloride is 100:0.5:0.5), and then the mixture is crushed and pulverized Finally, more than 90% of the mixed powder less than 180 meshes are obtained; the obtained mixed powder is subjected to columnar molding to obtain a columnar material;

[0043] (2) Carbonize the obtained columnar material to obtain a carbonized product, the final temperature of the carbonization is 700°C, and the heating rate is controlled to be 10°C / min;

[0044] (3) Activate the carbonized product obtained by steam to obtain special activated carbon for oil and gas recovery, wherein the activation temperature is 900° C., and the activation time is controlled to be 1 h.

[0045] The performance indexes of the activated carbon prepared in this example ...

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Abstract

The invention discloses an oil gas recycling special activated carbon and preparation method thereof. The method comprises steps as follows: (1) mixing raw coal and additive, crushing and grinding to obtain mixed material, extrusion molding the powder material to obtain molded material, wherein the additive is at least one selected from the group consisting of sodium hydroxide, potassium hydroxide, urea, sylvite and ammonium salt; (2) carbonizing the molded material to obtain carbonized material; and (3) activating the carbonized material to obtain activated carbon. The oil gas recycling special activated carbon has excellent indexes, is particularly suitable to be used as oil gas recycling adsorbent, provides precondition for localization of the oil gas recycling adsorbent and adds novelproduct for serial product of activated carbon. The invention has simple content and technique, wide additive source and low cost, is feasible in industry and is product with low cost and high performance, and has large economic value and social significance.

Description

technical field [0001] The invention relates to a special activated carbon for oil and gas recovery and a preparation method thereof, belonging to the field of activated carbon and its preparation. Background technique [0002] In recent years, due to the increasing calls for environmental protection and energy security at home and abroad, it has become an urgent problem to control the volatilized oil and gas from oil depots, gas stations and automobile fuel tanks. As early as 1995, the relevant departments of our country promulgated the standard that cars must be equipped with oil and gas recovery canisters. In 2007, my country further implemented the standards or regulations that must install oil gas recovery and adsorption devices in oil depots and gas stations with large gasoline turnover. Adsorption is currently the most cost-effective oil and gas recovery method, and it is also the main oil and gas recovery method currently used in China. However, the production proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/08
Inventor 孙仲超熊银伍傅翔王鹏吴涛郭良元梁大明李雪飞董卫果李艳芳肖宏生国晖刘春兰
Owner CCTEG CHINA COAL RES INST
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