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Method for preparation of biochar from phellodendron residue

A technology of biomass charcoal and medicinal residues, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of waste of resources, environment, pollution, etc., to save resources, reduce environmental pollution, reduce The effect of production costs

Inactive Publication Date: 2016-12-07
广西南宁荣威德新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method for preparing biomass charcoal from Phellodendron dregs, in order to solve the problems of treating Phellodendron dregs as garbage or drying them as fuel, resulting in a large amount of waste of resources and environmental pollution. As a raw material for the preparation of biochar, it can not only greatly reduce production costs, but also reduce environmental pollution, save resources, and promote resource recycling. It provides a new idea for the effective treatment of Phellodendron dregs, and has broad market prospects.

Method used

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  • Method for preparation of biochar from phellodendron residue

Examples

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preparation example Construction

[0041] The preparation method of described pyrolysis catalyst comprises the following steps:

[0042] S31: mixing kaolin, cobalt oxide, nickel oxide, titanium oxide, aluminum oxide, zinc oxide, and water glass for 8-12 minutes at a stirring speed of 100-160 r / min to prepare spherical particles I;

[0043] S32: Calcining the spherical particles I prepared in step S31 at a temperature in the range of 950-1100° C., cooling to room temperature and sieving to obtain a particle size of 0.01-0.06 mm and a pore volume of 0.05-0.08 mL / g. Spherical particles II with a solid density of 0.82-0.96g / mL and an abrasion rate of 2.05%-2.38%;

[0044]S4: Put the mixture I prepared in step S3 into a microwave reactor, heat up to 690-800°C at a rate of 10-60°C / min, and pyrolyze for 4-9min to prepare biomass gas and mixture II;

[0045] S5: In a microwave reactor, use the biomass gas carbonization carbonization mixture II prepared in step S4 at a temperature of 410-460° C. for 0.3-0.6 hours, and ...

Embodiment 1

[0055] A method for preparing biochar from Phellodendron dregs, comprising the following steps:

[0056] S1: Dry Phellodendron dregs with hot air to a moisture content of 21% to obtain dried Phellodendron dregs. The hot air is obtained by heat exchange between coal flue gas and air, and the temperature of the coal flue gas is 940°C. The air temperature is 20°C, and the hot air temperature is 360°C;

[0057] S2: crushing the dried Cortex Phellodendri dregs prepared in step S1, and passing through a 150-mesh sieve to obtain pulverized dry Phellodendron Phellodendron dregs;

[0058] S3: Mix the dry Phellodendron dregs pulverized material obtained in step S2 with the pyrolysis catalyst at a stirring speed of 110r / min for 13min to prepare mixture I, and the mass ratio of the dried Phellodendron dregs pulverized product to the pyrolysis catalyst is: 160:2, the pyrolysis catalyst is in parts by weight, including the following raw materials: 20 parts of kaolin, 3 parts of cobalt oxid...

Embodiment 2

[0072] A method for preparing biochar from Phellodendron dregs, comprising the following steps:

[0073] S1: Dry Phellodendron dregs with hot air to obtain a moisture content of 21% to obtain dried Phellodendron dregs. The hot air is obtained by heat exchange between coal flue gas and air, and the temperature of the coal flue gas is 920°C. The air temperature is 4°C, and the hot air temperature is 250°C;

[0074] S2: pulverize the dried Cortex Phellodendri dregs prepared in step S1, and pass through a 100-mesh sieve to obtain pulverized dry Cortex Phellodendron dregs;

[0075] S3: Mix the dry Phellodendron dregs pulverized material obtained in step S2 with the pyrolysis catalyst for 16 min at a stirring speed of 80 r / min to prepare mixture I, the mass ratio of the dried Phellodendron cork dregs pulverized product to the pyrolysis catalyst is: 100:1, the pyrolysis catalyst is in parts by weight, including the following raw materials: 8 parts of kaolin, 1 part of cobalt oxide, ...

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Abstract

Belonging to the technical field of biomass energy, the invention discloses a method for preparation of biochar from phellodendron residue. The biochar prepared from phellodendron residue is prepared by the steps of: phellodendron residue drying, crushing, gasification, charring, pressing forming and other steps. The method provided by the invention adopts phellodendron residue as the raw material for preparation of biochar, not only greatly lowers the production cost, but also can reduce environmental pollution, saves resources, promotes resource recycling, provides a new idea for effective treatment of phellodendron residue, and has broad market prospects.

Description

technical field [0001] The invention belongs to the technical field of biomass energy, and in particular relates to a method for preparing biomass charcoal from Phellodendron dregs. Background technique [0002] Existing biomass charcoal includes crude charcoal produced by traditional earth kilns, such as bamboo charcoal, charcoal, etc., as well as firelighters composed of combustibles and coals combined to make stick charcoal. Traditional coarse charcoal has low technical content, unreasonable earth kiln structure, high defective rate and relatively low conversion rate of raw materials. Traditional biomass charcoal is fired from trees. In order to meet the production needs, a large number of trees are cut down, causing irreversible damage to forest trees. In the current situation where the forest coverage rate is getting lower and lower and the greenhouse effect is getting worse, the production of traditional biochar is increasingly threatening the living environment of hu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/00C10B57/10C10B57/00B01J23/80
CPCC10B53/00B01J23/002B01J23/80B01J2523/00C10B57/005C10B57/10
Inventor 覃央央
Owner 广西南宁荣威德新能源科技有限公司