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Preparation method of straw matrix activated carbon

A production method and activated carbon technology, applied in the field of activated carbon, can solve the problems of poor quality of straw-based activated carbon, and achieve the effects of excellent adsorption performance, improved use effect, and improved quality.

Pending Publication Date: 2021-01-22
黔西南正胤活性炭科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for making straw-based activated carbon, which has the advantages of being able to improve the quality of straw-based activated carbon, and solves the problem of poor quality of straw-based activated carbon currently on the market

Method used

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] A method for preparing straw-based activated carbon, comprising the following steps:

[0026] Step 1. Raw material pretreatment: wash the screened stalks in clean water to remove impurities mixed in the stalks, and put the cleaned stalks in the sun to dry to reduce the moisture content in the stalks to 40-55%. Bundle the dried straw for later use;

[0027] Step 2, raw material crushing: putting the dried straw into a pulverizer for crushing, so that the straw is crushed into granules with a diameter of 20-30mm, and the crush...

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Abstract

The invention relates to the technical field of activated carbon, and discloses a straw matrix activated carbon preparation method, which comprises: step 1, raw material pretreatment: placing screenedstraws in clear water, washing to remove impurities mixed in the straws, placing the washed straws in the sun, airing to reduce the moisture content of the straws to 40-55%, and binding the aired straws for later use; step 2, raw material grinding: putting the aired straw into a pulverizer, pulverizing the straw into particles with a diameter of 20-30 mm, and subjecting the pulverized straw particles to semi-dry ensiling; and step 3, raw material drying: putting the semi-dry silage straw particles into a drying machine, and quickly drying to constant weight, so that the weight of the straw particles is greatly reduced to 15%. According to the preparation method of the straw matrix activated carbon, activated carbon with a high adsorption performance can be prepared, and the quality of thestraw matrix activated carbon is effectively improved.

Description

technical field [0001] The invention relates to the technical field of activated carbon, in particular to a method for preparing straw-based activated carbon. Background technique [0002] Activated carbon is a kind of black porous solid carbon. The main component of activated carbon is carbon, and contains a small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. The structure is irregularly arranged, and there are pores between cross-links. When activated, carbon structure defects will be generated, the bulk density is low, the specific surface area is large, and it has strong adsorption performance. It is an industrial adsorbent with a wide range of uses. [0003] The traditional raw materials for activated carbon preparation are coal, wood and coconut shell. Due to the limited sources or long growth cycle of these raw materials, the cost of activated carbon produced is relatively high, and a large amount of wood is required for production and pro...

Claims

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Application Information

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IPC IPC(8): C01B32/348C01B32/324C01B32/194C01B32/184
CPCC01B32/348C01B32/324C01B32/194C01B32/184Y02P20/133
Inventor 翁富华张雪锋周利生
Owner 黔西南正胤活性炭科技有限公司
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