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Method for preparing methane and barbecue charcoal from gynura japonica decoction dregs

A technology of Panax notoginseng residue and barbecue charcoal, which is applied to solid fuels, biofuels, waste fuels, etc., can solve problems such as pollution, waste of the environment, large resources, etc., and achieve the effects of reducing environmental pollution, saving resources, and being beneficial to use.

Inactive Publication Date: 2016-10-12
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

[0008] The invention provides a method for preparing methane and barbecue charcoal from chrysanthemum notoginseng dregs, so as to solve the problems of treating chrysanthemum notoginseng dregs as garbage or drying them as fuel, resulting in a large amount of waste of resources and environmental pollution. The invented method utilizes the chrysanthemum notoginseng dregs to the greatest extent, and realizes the purpose of full resource utilization of the chrysanthemum notoginseng dregs for bio-fermentation of methane and pyrolysis of its fermentation residue to prepare biochar, which can not only greatly reduce production costs, but also It can reduce environmental pollution, save resources, promote resource recycling, have good economic and environmental benefits, provide a scientific basis for the resource utilization of similar lignocellulosic wastes, and have broad market prospects

Method used

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  • Method for preparing methane and barbecue charcoal from gynura japonica decoction dregs

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preparation example Construction

[0059] The preparation method of described pyrolysis catalyst comprises the following steps:

[0060] S71: Mix alkaline clay, 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;

[0061] The preparation method of alkaline clay described in step S71, comprises the following steps:

[0062] S711: Mix bentonite and activated clay wastewater with a concentration of 10% in a weight ratio of 2:9, and stir evenly at a speed of 300 r / min to obtain slurry material I;

[0063] S712: Add the slurry material I prepared in step S711 to the inorganic mixed acid with a concentration of 16%, the inorganic mixed acid is phosphoric acid with a concentration of 19wt%, hydrochloric acid with a concentration of 38wt%, and sulfuric acid with a concentration of 27wt% by volume Mixed acid composed of 3:3:2, the weight ratio of slurry material I to inorganic mixed acid is 2:10, ...

Embodiment 1

[0081] A method for preparing methane and barbecue charcoal from chrysanthemum notoginseng dregs, comprising the following steps:

[0082] S1: drying the chrysanthemum notoginseng dregs with hot air to a moisture content of 15% to obtain dried chrysanthemum notoginseng 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;

[0083] S2: crushing the dried chrysanthemum notoginseng medicinal residues prepared in step S1, and passing through a 150-mesh sieve to obtain dried chrysanthemum notoginseng medicinal residues;

[0084]S3: Add potassium hydroxide solution with a concentration of 15% to the dried chrysanthemum notoginseng dregs pulverized product obtained in step S2, and stir for 7 minutes at a rotating speed of 120r / min, so that the chrysanthemum notoginseng dregs are completely soaked in the hydroxide solution. Potassium solution,...

Embodiment 2

[0110] A method for preparing methane and barbecue charcoal from chrysanthemum notoginseng dregs, comprising the following steps:

[0111] S1: drying the chrysanthemum notoginseng dregs with hot air to a moisture content of 13% to obtain dried chrysanthemum notoginseng 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;

[0112] S2: crushing the dried chrysanthemum notoginseng medicinal residues prepared in step S1, and passing through a 100-mesh sieve to obtain dried chrysanthemum notoginseng medicinal residues;

[0113] S3: Add potassium hydroxide solution with a concentration of 8% to the dried chrysanthemum notoginseng dregs pulverized in step S2, and stir for 8 minutes at a rotating speed of 80r / min, so that the chrysanthemum notoginseng dregs are completely immersed in the hydroxide solution. Potassium solution, and soaked at a ...

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Abstract

The invention discloses a method for preparing methane and barbecue charcoal from gynura japonica decoction dregs, and belongs to the technical field of biomass energy. Methane and barbecue charcoal prepared from gynura japonica decoction dregs are prepared through gynura japonica decoction dreg drying, smashing, fermenting, biogas residue drying and smashing, gasifying, charring, press forming and the like. By means of the method, the gynura japonica decoction dregs are used to the maximum extent, the full resource utilization aims of preparing methane by biologically fermenting the gynura japonica decoction dregs and preparing charcoal by pyrolyzing fermentation residues of the gynura japonica decoction dregs are achieved, production cost can be greatly reduced, environment pollution can be reduced, resources can be saved, resource recycling can be promoted, the method has good economic benefits and environmental benefits, a scientific basis is provided for resource utilization of waste like lignocellulose, and the method has wide 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 methane and barbecue charcoal from chrysanthemum notoginseng dregs. 【Background technique】 [0002] Existing barbecue charcoal comprises the rough charcoal produced by traditional earthen kiln, as bamboo charcoal, charcoal etc. and the firelighter that is made up of combustible material and combines with coal 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 barbecue 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 barbecue charcoal i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44C12P5/02
CPCC10L5/44C12P5/023Y02E50/10Y02E50/30
Inventor 覃央央
Owner 广西南宁荣威德新能源科技有限公司