Mesoporous carbon carrier and preparation method thereof

A technology of mesoporous carbon and carrier, applied in the field of mesoporous carbon carrier and its preparation, can solve the problems of poor high temperature resistance, poor mercury removal effect, poor acid and alkali resistance, etc., and achieves enhanced alkalinity and surface activity, improved mercury removal effect, the effect of increasing the adsorption capacity

Active Publication Date: 2020-05-12
SHENYANG SANJUKAITE CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome defects such as poor mercury removal effect, poor acid and alkali resistance, and poor high temperature resistance of mesoporous carbon carriers in the prior art, thereby providing a mesoporous carbon carrier and its preparation method

Method used

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  • Mesoporous carbon carrier and preparation method thereof
  • Mesoporous carbon carrier and preparation method thereof
  • Mesoporous carbon carrier and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0035] This embodiment provides a method for preparing a mesoporous carbon carrier, comprising:

[0036] 140g of furfuryl alcohol was added into 100g of water to dissolve to make a saturated solution, and then 270g of diphenol was added to obtain the first mixed solution for subsequent use;

[0037] 350g P123 template is completely immersed in the first mixed solution for 24 hours to obtain the second mixed solution, which is set aside;

[0038] At 750°C, 55g K 2 CO 3 Add the second mixed solution for activation for 8 hours to obtain the first activated intermediate; soak the first activated intermediate in the first mixed solution for 10 hours to obtain the third mixed solution;

[0039] The third mixed solution was stirred at 80° C. for 20 h for crystallization, and then dried at 105° C. for 8 h after suction filtration; and then heat-treated at 950° C. for 35 h under the protection of nitrogen to obtain a mesoporous carbon carrier.

Embodiment 2

[0041] This embodiment provides a method for preparing a mesoporous carbon carrier, comprising:

[0042] The urea of ​​120g is added to dissolve in 100g water, makes saturated solution, then adds 240g phenolic resin again, obtains the first mixed solution, for subsequent use;

[0043]300g F127 template is fully immersed in the first mixed solution for 23 hours to obtain the second mixed solution, which is set aside;

[0044] At 730°C, add 45g of KOH to the second mixed solution for activation for 7 hours to obtain the first activated intermediate; soak the first activated intermediate in the first mixed solution for 9 hours to obtain the third mixed solution;

[0045] The third mixed liquid was stirred at 70° C. for 18 hours for crystallization, and then dried at 105° C. for 8 hours after suction filtration; and then heat-treated at 900° C. for 33 hours under the protection of nitrogen to obtain a mesoporous carbon carrier.

Embodiment 3

[0047] This embodiment provides a method for preparing a mesoporous carbon carrier, comprising:

[0048] Add 160g of ethylenediamine to 100g of water for dissolving to make a saturated solution, then add 300g of phenolic resin oligomer to obtain the first mixed solution for subsequent use;

[0049] The 390g tetraethylamine template is fully immersed in the first mixed solution for 25h to obtain the second mixed solution, which is set aside;

[0050] At 780°C, add 65g of NaOH to the second mixed solution for activation for 9 hours to obtain the first activated intermediate; soak the first activated intermediate in the first mixed solution for 11 hours to obtain the third mixed solution;

[0051] The third mixed liquid was stirred at 90° C. for 22 hours for crystallization, and then dried at 105° C. for 8 hours after suction filtration; and then heat-treated at 1000° C. for 37 hours under the protection of nitrogen to obtain a mesoporous carbon carrier.

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Abstract

The invention belongs to the technical field of petrochemical engineering, and particularly relates to a mesoporous carbon carrier and a preparation method thereof. The method comprises the followingsteps: adding a carbon source into a saturated solution of a nitrogen source, and uniformly mixing to obtain a first mixed solution; dipping a template into the first mixed solution to obtain a secondmixed solution; adding an activating agent into the second mixed solution for activation to obtain a first activated intermediate, and then dipping the first activated intermediate into the first mixed solution again for mixing to obtain a third mixed solution; and sequentially crystallizing, filtering, drying and thermally treating the third mixed solution to obtain the mesoporous carbon carrier. According to the method, the mesoporous carbon carrier with good chemical stability and low surface reaction activity can be prepared without adding strong oxidizing acid in the preparation process,the mesoporous carbon carrier has good acid and alkali resistance and high temperature resistance, and the mercury removal catalyst prepared from the mesoporous carbon carrier has a good mercury removal effect.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a mesoporous carbon carrier and a preparation method thereof. Background technique [0002] Mercury is present in all fossil fuels and exists as a pollutant. Mercury is contained in natural gas fields in most parts of the world, among which, the mercury content in naphtha is generally 10 -9 -10 -6 It mainly exists in the form of elemental mercury, organic mercury and ionic mercury. Mercury is toxic, corrosive, and bioaccumulative. Trace amounts of mercury in naphtha can also corrode low-temperature aluminum equipment, poison precious metal catalysts, reduce oil quality, and endanger the environment and human health. Mercury is necessary. [0003] Unlike natural gas mercury removal, the presence of heavy hydrocarbons and organic mercury in naphtha increases the difficulty of mercury removal. At present, naphtha mercury removal processes include chem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J37/02B01J35/10B01J32/00C01B32/348C01B32/318C10G25/00
CPCB01J27/24B01J37/0201B01J35/1023B01J35/1028B01J35/1038B01J35/1061B01J35/109C01B32/348C01B32/318C10G25/003C10G2300/205
Inventor 廖奕鸥刘聪单红飞陈玲玲赵素云孙亮张瑞光李舰
Owner SHENYANG SANJUKAITE CATALYST
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