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A method for enhancing the adsorption activity of activated carbon

A technology of activated carbon adsorption and activity enhancement, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of low adsorption force and adsorption capacity, unsatisfactory enterprises, small pores, etc., to ensure air quality and production costs Low, small orifice effect

Inactive Publication Date: 2015-12-30
广东博尔睿水处理技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the activated carbon produced in my country is almost all low-end products, mainly characterized by large mouth, small pore belly, low adsorption capacity and low adsorption capacity, which cannot meet the requirements of enterprises.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for enhancing the adsorption activity of activated carbon is composed of the following three steps:

[0016] The first step is starch calcification, according to the mass ratio m 红薯淀粉 :m 土豆淀粉 :m 碳酸钙粉末 =100:55:20, after uniformly mixing sweet potato starch, potato starch and calcium carbonate powder, pressing into agglomerates, pulverizing to 150 mesh, to obtain calcified starch; wherein the water content of sweet potato starch and potato starch is 40%, calcium carbonate The powder particle size is 130 mesh;

[0017] The second step is the calcification of activated carbon. In the atomized air of calcified starch, ordinary activated carbon adsorbs calcified starch. When the adsorption amount of calcified starch reaches 7% of the saturation limit of activated carbon adsorption, the activated carbon is taken out to obtain calcified activated carbon. Surface area less than 600m 2 / g activated carbon;

[0018] The third step is the enhanced activation of activa...

Embodiment 2

[0020] A method for enhancing the adsorption activity of activated carbon is composed of the following three steps:

[0021] The first step is starch calcification, according to the mass ratio m 红薯淀粉 :m 土豆淀粉 :m 碳酸钙粉末 =100:70:15, after uniformly mixing sweet potato starch, potato starch and calcium carbonate powder, pressing into blocks, pulverizing to 160 mesh, to obtain calcified starch; wherein the water content of sweet potato starch and potato starch is 38%, calcium carbonate Powder particle size is 110 mesh;

[0022] The second step is the calcification of activated carbon. In the atomized air of calcified starch, ordinary activated carbon adsorbs calcified starch. When the adsorption amount of calcified starch reaches 6% of the saturation limit of activated carbon adsorption, the activated carbon is taken out to obtain calcified activated carbon. Surface area less than 600m 2 / g activated carbon;

[0023] The third step is the enhanced activation of activated carbon...

Embodiment 3

[0025] A method for enhancing the adsorption activity of activated carbon is composed of the following three steps:

[0026] The first step is starch calcification, according to the mass ratio m 红薯淀粉 :m 土豆淀粉 :m 碳酸钙粉末 =100:60:10, after uniformly mixing sweet potato starch, potato starch, and calcium carbonate powder, pressing into agglomerates, pulverizing to 170 mesh, to obtain calcified starch; wherein the water content of sweet potato starch, potato starch is 35%, calcium carbonate Powder particle size is 120 mesh;

[0027] The second step is the calcification of activated carbon. In the atomized air of calcified starch, ordinary activated carbon adsorbs calcified starch. When the adsorption amount of calcified starch reaches 5% of the adsorption saturation limit of activated carbon, the activated carbon is taken out to obtain calcified activated carbon. Surface area less than 600m 2 / g activated carbon;

[0028] The third step is the enhanced activation of activated ca...

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Abstract

The invention discloses a method for enhancing activated carbon absorption activity. The method comprises three steps as follows: step one, starch calcification: sweet potato starch, potato starch and calcium carbonate powder are uniformly mixed according to the mass ratio of sweet potato starch, potato starch and calcium carbonate powder of 100: (55-70): (10-20), pressed into block and then smashed into 150-180 meshes to obtain calcified starch; step two, calcification of activated carbon: common activated carbon absorbs the calcified starch in calcified starch atomizing air, and the activated carbon is taken out when the absorption quantity of the calcified starch is 3%-7% of an activated carbon absorption saturation limiting value to obtain the calcified activated carbon; and step three, activation enhancement of activated carbon: the calcified activated carbon is placed in water steam containing carbon dioxide at the temperature of 1,000-1,200 DEG C for activating treatment for 5-13 minutes, and the activated carbon is cooled to the room temperature under the oxygen-free condition to obtain super-absorption activated carbon. The method for enhancing the activated carbon absorption activity is easy to implement, convenient to operate and low in production cost.

Description

technical field [0001] The invention relates to a method for enhancing the adsorption activity of activated carbon, in particular to an activation method for enhancing the adsorption performance of activated carbon with calcified starch mixed powder. Background technique [0002] Activated carbon is a kind of carbon material with well-developed pore structure, large specific surface area and excellent adsorption performance, and has extensive and important uses in various industries. With the development of the national economy, many fields put forward higher requirements for the performance of activated carbon, which further promotes the development of activated carbon in raw materials, production technology and performance. The preparation of activated carbon is a complex process affected and restricted by many factors, and the difference in raw materials and activation treatment processes will have a significant impact on the performance of activated carbon. [0003] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/30B01J20/20
Inventor 彭万喜葛省波江新喜刘必衍李东立邓和平张明龙
Owner 广东博尔睿水处理技术有限公司
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