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A kind of wood columnar activated carbon production process

A technology for activated carbon production and powdered activated carbon, which is applied in the chemical industry, climate sustainability, sustainable manufacturing/processing, etc. It can solve the problems of poor adsorption quality and low strength of columnar activated carbon, achieve high quality, save production resources, The effect of saving resources

Active Publication Date: 2016-08-17
江西能欣生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because domestic manufacturers have not broken through the key bonding and molding technology of columnar activated carbon production in the production process, the product strength of columnar activated carbon is low, and the adsorption quality is generally poor.

Method used

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  • A kind of wood columnar activated carbon production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Select 100kg of high-quality food-grade powdered activated carbon; weigh 3kg of lignin, 5kg of carboxymethyl cellulose, 0.2kg of clay, and 1.8kg of bentonite, and mix them evenly to make a binder; add 70kg of water to dilute the dry humidity of the powdered activated carbon. , fully and evenly bonded with the prepared adhesive to make an activated carbon mixture for use; extrude the activated carbon mixture into a column at 300°C and a hydraulic pressure of 315 tons; send the formed columnar activated carbon into the drying furnace, After the temperature is controlled at 80°C for sufficient drying, it is sent to a carbon activation furnace for carbonization, activation and solidification at 800°C; the obtained columnar activated carbon product is tested, and the test results are: iodine value adsorption value 1012mg / g, methylene blue adsorption value 15.3 ml / 0.1g, carbon tetrachloride adsorption value 82%, caramel decolorization rate 100%, qualified products are screened...

Embodiment 2

[0024] Select 100kg of high-quality food-grade powdered activated carbon; weigh 7kg of lignin, 1kg of carboxymethyl cellulose, 0.8kg of clay, and 1.2kg of bentonite, and mix them evenly to make a binder; add 38kg of water to dilute the dry humidity of the powdered activated carbon. , fully and evenly bonded with the prepared adhesive to make an activated carbon mixture for use; extrude the activated carbon mixture into a column at 300°C and 400 tons of hydraulic pressure; send the formed columnar activated carbon into the drying furnace, After the temperature is controlled at 100°C for sufficient drying, it is sent to a carbon activation furnace for carbonization, activation and solidification at 800°C; the obtained columnar activated carbon product is tested, and the test results are: iodine value adsorption value 1050mg / g, methylene blue adsorption value 16.3 ml / 0.1g, carbon tetrachloride adsorption value 90%, caramel decolorization rate 100%, qualified products are screened ...

Embodiment 3

[0026] Select 100kg of high-quality food-grade powdered activated carbon; weigh 5kg of lignin, 3.5kg of carboxymethyl cellulose, 0.5kg of clay, and 1.0kg of bentonite, and mix them evenly to make a binder; add 30kg of water to dilute the dry powdered activated carbon. Humidity, fully and evenly bonded with the prepared adhesive, and made into activated carbon mixture for use; extrude the activated carbon mixture into a column at 200 ° C and 400 tons of hydraulic pressure; send the formed columnar activated carbon into the drying furnace , the temperature is controlled at 120°C for sufficient drying, and then sent to the carbon activation furnace for carbonization, activation and solidification at 800°C; the obtained columnar activated carbon finished product is tested, and the test results are: iodine value adsorption value 1123mg / g, methylene blue adsorption value 15.9ml / 0.1g, carbon tetrachloride adsorption value 87%, caramel decolorization rate 100%, qualified products are s...

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Abstract

The invention provides a production technique of novel wood columnar activated carbon, which comprises the following steps: adopting high-quality food-grade powdered activated carbon; proportionally and uniformly mixing lignin, carboxymethyl cellulose, argil and bentonite to obtain an adhesive; proportionally diluting the powdered activated carbon with water, and sufficiently and uniformly bonding with the prepared adhesive to obtain an activated carbon mixture; and carrying out high-temperature high-pressure extrusion forming, drying in a furnace, and carrying out carbonization, activation and fixing formation in a carbon activating furnace. The technique has the advantages of low labor intensity, high efficiency, favorable working environment, greatly lower required energy, high product yield and obvious economic benefits, and is convenient for large-scale production.

Description

technical field [0001] The invention belongs to the field of activated carbon production, and more specifically relates to a novel wood columnar activated carbon production process. Background technique [0002] Activated carbon is a very good adsorbent. It uses charcoal, various fruit shells and high-quality coal as raw materials, and uses physical and chemical methods to crush, sieve, activate catalysts, rinse, dry and screen raw materials. Manufactured through a series of processes. It has the dual characteristics of physical adsorption and chemical adsorption, and can selectively adsorb various substances in the gas phase and liquid phase to obtain the purposes of decolorization, purification, disinfection, deodorization, decontamination and purification. Activated carbon can be divided into powdered activated carbon and columnar activated carbon according to its shape. Due to the well-developed micropores, mesopores and macropores, columnar activated carbon has the ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/08
CPCY02P20/10
Inventor 熊序然熊军
Owner 江西能欣生物科技有限公司