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Method for producing biomass solid shaping fuel by catalytic mild carbonization method

A technology of solidification molding and molding fuel, which is applied in the direction of biofuel, solid fuel, waste fuel, etc., can solve the problems of complex operation, difficult maintenance of molding equipment, high production cost, etc., achieve simple operation, improve curing molding performance and heat density, low production cost

Inactive Publication Date: 2009-12-23
黑龙江省农业科学院农村能源研究所
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of complex operation, high production cost and difficult maintenance of molding equipment in the existing physical method for producing biomass solidified briquette fuel, and to provide a method for producing biomass solidified briquette fuel by catalytic light carbonization

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  • Method for producing biomass solid shaping fuel by catalytic mild carbonization method

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specific Embodiment approach 1

[0010] Specific Embodiment 1: In this embodiment, the method for producing biomass solidified briquette fuel by catalytic light carbonization method is carried out according to the following steps: 1. Crush the straw into straw powder with a particle size of 0.5-3 mm, and then mix the straw powder and catalyst according to The mass ratio is 10:0.6~1, and then placed in a carbonization reactor at a temperature of 120~220°C for 30~90 minutes to obtain straw charcoal powder; 2. Mix 4~10 parts of straw Charcoal powder, 0.8-1.2 parts of auxiliary materials, 0-6 parts of cow dung with a moisture content of 0.5-50% and 0-6 parts of biogas residue with a moisture content of 0.5-50% are mixed, and then placed in a molding machine for molding , the forming pressure is 3×10 7 ~4×10 7 Pa; 3. The briquette fuel obtained in step 2 is dried naturally until the moisture content of the briquette fuel reaches 0.5% to 15%, that is, the biomass solidified briquette fuel is obtained.

[0011] Th...

specific Embodiment approach 2

[0013] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the catalyst in step 1 is H with a mass concentration of 30% to 98%. 2 SO 4 solution or NaOH solution with a mass concentration of 20% to 35%. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0014] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the catalyst in step one is 30% to 98% H with a mass concentration of 2 to 4 parts by weight. 2 SO 4 The solution is composed of 1 to 2 parts of HCl solution with a mass concentration of 20% to 36%.

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Abstract

A method for producing biomass solid shaping fuel by a catalytic mild carbonization method relates to methods for producing the biomass solid shaping fuel, solving the problems of complex operation, high production cost and difficult shaping equipment maintenance existing in the current method for producing the biomass solid shaping fuel by a physical method. The method comprises the following steps: 1. grinding straws into straw powder and then mixing the straw powder with a catalyst for reaction to obtain straw carbon powder; 2. mixing the straw carbon powder, accessories, cow dungs with water content of 0.5-50% and biogas residues with water content of 0.5-50% and placing the mixture in a shaping unit to obtain shaping fuel; 3. carrying out sun drying on the shaping fuel, thus obtaining the biomass solid shaping fuel. The method of the invention effectively improves the solid shaping performance and heat density of the straws, can realize continuous production and has simple operation and low production cost. The shaping equipment is easily maintained.

Description

technical field [0001] The invention relates to a method for making biomass solidified molding fuel. Background technique [0002] At present, my country's biomass solidification molding fuel technology generally adopts the physical method, that is, a one-step molding process, and has entered the stage of small-scale promotion. According to the processing method, this technology can be divided into flat die granulation method, screw extrusion method, and pressurized roller molding. The forming principle of the physical method is to overcome the elastic force of the straw material through the strong pressure or extrusion force generated by the equipment for forced compression and accumulation. The process is to crush the biomass material and then put it into the In the extrusion molding machine, under the action of a certain pressure and temperature, it is made into rod-shaped, block-shaped or granular fuel. The technological process is: straw collection→drying→crushing→molding...

Claims

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Application Information

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IPC IPC(8): C10L5/44C10L5/42C10B53/02
CPCY02E50/30Y02E50/14Y02E50/10Y02P20/133
Inventor 崔昌龙王凡刘杰王伟裴占江边道林张楠王大蔚
Owner 黑龙江省农业科学院农村能源研究所
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