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Active carbon serving as catalyst carrier and treatment method and application thereof

A catalyst carrier and treatment method technology, applied in the field of activated carbon, can solve the problems of insignificant economic benefits, limited catalytic activity, short service life, etc., and achieves good micropore pore size distribution and micropore surface charge reformability, and huge economic benefits. , the effect of convenient operation

Inactive Publication Date: 2011-04-27
CHINA PETROCHEMICAL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in current production and application, directly adopt commercially available activated carbon as synthetic vinyl acetate catalyst, although can satisfy existing general industrial production requirement, its catalytic activity is limited to some extent, and service life is shorter, economical brought by industrial application The benefit is not significant

Method used

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  • Active carbon serving as catalyst carrier and treatment method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Nitrogen is passed into the reaction kettle equipped with a reflux condenser, and the specific surface area is about 800m 2 100 parts (volume fraction) of activated carbon per gram, heated to 75±2°C, quickly added 150 parts (volume fraction) of hydrogen peroxide, refluxed for 1.0 hr, washed with pure water to neutral pH, separated by filtration, and dried to obtain the product.

Embodiment 2-6

[0022] Embodiment 2-6: Carry out with the relevant process parameters listed in the table below, and the reaction steps are the same as in Example 1.

[0023]

[0024] The catalyst carrier prepared by the above method, as well as the commercially available untreated activated carbon carrier, were impregnated under the same impregnation conditions using the same zinc acetate solution, filtered and dried, and their catalytic activity and service life were investigated under the same conditions respectively. The results As shown in the following table:

[0025] Comparison table of activity life of different catalysts

[0026] sample name

Catalytic activity increase (%)

Lifespan (hr / hr, %)

unprocessed

100

100

Example 1

115

118

Example 2

108

104

Example 3

105

112

Example 4

109

114

Example 5

107

108

Example 6

102

106

[0027] The activity enhanc...

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Abstract

The invention relates to an active carbon serving as a catalyst carrier and a treatment method and application thereof. After being subjected to heating and dipping treatment in hydrogen peroxide, the specific surface area of the active carbon is 900 to 1,300m<2> / g and the mesopore distribution ratio is 20 to 30 percent. The treatment method has short treatment time and high speed, is convenient to operate and is easy to realize. The micropore size distribution and the micropore surface charge reorganization of the treated active carbon adsorptive catalyst are well improved. The active carbon treated by the method is suitable for serving as the carrier of a synthesis catalyst for the industrial production of vinyl acetate.

Description

technical field [0001] The invention relates to an activated carbon, in particular to an activated carbon used as a catalyst carrier and a treatment method and application thereof. Background technique [0002] Activated carbon is a kind of adsorbent with excellent performance and wide application. It has dual characteristics of physical adsorption and chemical adsorption, and can selectively adsorb various substances in gas phase and liquid phase. In the industry, the physical and chemical adsorption characteristics of its own activation are used to adsorb and attach the catalyst to its surface, and after drying, it is prepared into a catalyst required for production. It mainly prepares palladium carbon catalyst, ruthenium carbon catalyst, rhodium carbon catalyst, and platinum carbon catalyst. Wait. [0003] At present, the known preparation methods of activated carbon have two major process routes, namely chemical activation (also known as drug activation) and physical a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J21/18B01J37/02B01J35/10C07C69/15
Inventor 冯良荣侯春燕李子健张仁文何志群
Owner CHINA PETROCHEMICAL CORP
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