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Preparation method of activated carbon with essential oil byproduct

A production method and technology of activated carbon, which are applied in the directions of essential oils/fragrance, chemical instruments and methods, and fat production, can solve the problems of no waste gas recovery device, ecological environment damage, waste of resources, etc., and achieve high-value utilization and source. Sufficient and strong adsorption effect

Inactive Publication Date: 2019-10-01
林翔云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In terms of production equipment and process technology, although some domestic enterprises use forestry processing residues to produce activated carbon, most of the equipment is still a flat furnace made by local methods. There is neither waste gas recovery device nor wastewater treatment equipment, which wastes precious resources. In turn, the acid waste gas and waste water generated during the production process have caused damage to the local ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Dry the fir chips with a length of less than 5cm collected from wood processing factories in various places and dry them until the water content is less than 15%;

[0030] (2) The material and coal obtained in step (1) are mixed uniformly in a mass ratio of 100:30 and then soaked in the aqueous solution of the activation composition for 24h. The above activation composition consists of potassium hydroxide, sodium hydroxide, potassium sulfide, Potassium sulfate and potassium carbonate are made up with the mass ratio of 60:10:10:10:10, and the solid content in the above-mentioned aqueous solution is 60wt%;

[0031] (3) placing the material obtained in step (2) in a 20kW industrial microwave oven for 35min irradiation treatment;

[0032] (4) Carbonize and activate the material obtained in step (3) at 750°C for 70 minutes. The gas generated during this period is condensed into a liquid. The liquid is separated after standing for several days. After the upper liquid is f...

Embodiment 2

[0035] (1) Rinse the fir roots dug out of the ground with clean water, break them into sawdust with a length less than 3cm, then dry and dry until the water content is less than 15%;

[0036] (2) The material and coal obtained in step (1) are mixed uniformly in a mass ratio of 100:40 and then soaked in the aqueous solution of the activation composition for 24h. The above activation composition consists of potassium hydroxide, sodium hydroxide, potassium sulfide, Potassium sulfate and potassium carbonate are made up with the mass ratio of 60:10:10:10:10, and the solid content in the above-mentioned aqueous solution is 60wt%;

[0037] (3) placing the material obtained in step (2) in a 20kW industrial microwave oven for 35min irradiation treatment;

[0038] (4) Carbonize and activate the material obtained in step (3) at 780°C for 70 minutes. The gas generated during this period is condensed into a liquid, and the liquid is separated after standing for several days. After the liqu...

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Abstract

The invention discloses a method for simultaneously preparing activated carbon and essential oil. The method is characterized in that the branches, leaves, barks, roots and the like of fragrant plantsare used as the raw materials, and a drum type flowing gas burning furnace and special activating composition which can be fully recycled and reutilized are utilized, so as to prepare wooden activated carbon with high discoloring ability. The prepared activated carbon has the advantages that the adsorbing ability is higher, and the purity is higher; the essential oil byproduct can be recycled, sothat the economic benefit is increased.

Description

technical field [0001] The invention belongs to the technical field of activated carbon production, and in particular relates to a production method of activated carbon by-product essential oil. Background technique [0002] Activated carbon is a very good adsorbent. It uses charcoal, bamboo charcoal, various fruit shells and high-quality coal as raw materials, and crushes, sieves, activates catalysts, rinses, dries and screens raw materials through physical and chemical methods. 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 achieve the purposes of decolorization, purification, disinfection, deodorization, decontamination and purification. [0003] Activated carbon is widely used in various aspects of industrial and agricultural production, such as alkali-free deodorization (refined mercaptan removal), ethylene desa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/318C01B32/33C01B32/348C11B9/02
CPCC11B9/027
Inventor 林翔云
Owner 林翔云
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