Activation method for bamboo charcoal

An activation method and bamboo charcoal technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problems of unfavorable sustainable development of bamboo forest industry, low adsorption performance, low added value, etc. The effect of small mouth and large adsorption capacity

Inactive Publication Date: 2014-10-15
长沙沁馨源环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the bamboo charcoal activation methods have low adsorption performance and low added value, which is not conducive to the sustainable development of the bamboo forest industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of activation method of bamboo charcoal is made up of following three steps:

[0016] The first step is the preparation of starch powder, according to the mass ratio m 玉米淀粉 :m 土豆淀粉 :m 莲藕淀粉 =100:35:1.5, cornstarch, potato starch, lotus root starch are evenly mixed, and the obtained starch powder particle size is 80 orders;

[0017] The second step is the preparation of modified bamboo charcoal. In the starch powder atomized air, the bamboo charcoal adsorbs the starch powder. When the starch adsorption amount reaches 9% of the saturated bamboo charcoal adsorption amount, the bamboo charcoal is taken out to obtain the modified bamboo charcoal; wherein the bamboo charcoal is made of bamboo. Bamboo charcoal prepared from raw materials;

[0018] The third step is the activation of bamboo charcoal. The modified bamboo charcoal is placed in 900°C water vapor, activated for 95 minutes, and cooled to room temperature under anaerobic conditions to obtain bamboo activated...

Embodiment 2

[0020] A kind of activation method of bamboo charcoal is made up of following three steps:

[0021] The first step is the preparation of starch powder, according to the mass ratio m 玉米淀粉 :m 土豆淀粉 :m 莲藕淀粉 =100:40:3.0, cornstarch, potato starch, lotus root starch are evenly mixed, and the obtained starch powder particle size is 100 orders;

[0022] The second step is the preparation of modified bamboo charcoal. In the starch powder atomized air, the bamboo charcoal adsorbs the starch powder. When the starch adsorption amount reaches 10% of the saturated bamboo charcoal adsorption amount, the bamboo charcoal is taken out to obtain the modified bamboo charcoal; wherein the bamboo charcoal is made of bamboo. Bamboo charcoal prepared from raw materials;

[0023] The third step is the activation of bamboo charcoal. The modified bamboo charcoal is placed in 980°C water vapor, activated for 50 minutes, and cooled to room temperature under anaerobic conditions to obtain bamboo activat...

Embodiment 3

[0025] A kind of activation method of bamboo charcoal is made up of following three steps:

[0026] The first step is the preparation of starch powder, according to the mass ratio m 玉米淀粉 :m 土豆淀粉 :m 莲藕淀粉 =100:45:2.5, cornstarch, potato starch, lotus root starch are evenly mixed, and the obtained starch powder particle size is 110 orders;

[0027] The second step is the preparation of modified bamboo charcoal. In the starch powder atomized air, the bamboo charcoal adsorbs the starch powder. When the starch adsorption amount reaches 12% of the saturated bamboo charcoal adsorption amount, the bamboo charcoal is taken out to obtain the modified bamboo charcoal; the bamboo charcoal is made of bamboo. Bamboo charcoal prepared from raw materials;

[0028] The third step is the activation of bamboo charcoal. Put the modified bamboo charcoal in water vapor at 1100°C, activate it for 60 minutes, and cool it to room temperature under anaerobic conditions to obtain bamboo activated carb...

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Abstract

The invention discloses an activation method for bamboo charcoal. The method comprises the following three steps: a first step, preparing starch powder, to be specific, corn starch, potato starch and lotus root starch are uniformly mixed according to the condition that the quality ratio of m corn starch to m potato starch to m lotus root starch is 100:(30-45):(1.5-3.5), and the particle diameter of the prepared starch powder is 80-120 meshes; a second step, preparing modified bamboo charcoal, to be specific, bamboo charcoal adsorbs the starch powder in starch powder atomizing air, when the starch adsorbing quantity reaches 9%-14% of the bamboo charcoal adsorbing saturation quantity, the bamboo charcoal is taken out, and the modified bamboo charcoal is obtained; a third step, activating the bamboo charcoal, to be specific, the modified bamboo charcoal is placed in vapour of 900-1100 DEG C to be activated and processed for 25-95 minutes, and the modified bamboo charcoal is cooled to normal temperature under the oxygen-free condition, so that the activated bamboo charcoal is obtained. The activation method for the bamboo charcoal, disclosed by the invention, is easy to realize, convenient to operate and low in production cost.

Description

technical field [0001] The invention relates to a method for activating bamboo charcoal, in particular to a method for activating bamboo charcoal with 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 raw materials for preparing activated carbon with excellent performance are ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/10C01B32/336
Inventor 彭万喜李东立邓和平江新喜刘必衍葛省波张明龙
Owner 长沙沁馨源环保科技有限公司
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