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Biomass pyrolysis method

A biomass and rectangular container technology, used in biofuels, air quality improvement, special forms of dry distillation, etc., can solve the problems of not achieving environmental protection and energy saving, inaccurate extraction components, poor carbonization effect, etc., and achieve high gasification rate. Accurate effect of extracting ingredients

Inactive Publication Date: 2011-10-19
WANGJIANG GUIHE BIOMASS ENERGY EQUIP MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mainly use closed external heating, open kiln, gasifier and other methods to carbonize straw and other biomass, but the carbonization effect is not good, and the purpose of environmental protection and energy saving has not been achieved, and the extracted components are not accurate

Method used

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  • Biomass pyrolysis method
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  • Biomass pyrolysis method

Examples

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Embodiment Construction

[0016] Depend on figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 It can be seen that the bottom plane of the open rectangular container 1 used in the biomass cracking method of the present invention is inclined, and the short wall of the container 1 is provided with a flue 2 along the bottom, and the other three walls are provided with an air duct 3 along the bottom. 2. It communicates with several ventilation passages 4 inside the bottom of the container 1. The bottom surface of the container 1 is provided with a plurality of suction passages 5 and communicates with each ventilation passage 4. The container wall and the bottom of the container are provided with ventilation holes 6. 7 is connected with the flue 3 and connected with the cooling device in the next step. The container 1 is made of refractory material and iron plate, and can be installed in half of the ground and half of the ground.

[0017] Taking the volume of 60 cubic meters as an example, the wa...

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Abstract

The invention discloses a biomass pyrolysis method, which comprises the following steps: putting biomass in a rectangular container with an opening, wherein the bottom plane of the container is inclined, the short wall of the container is provided with a flue along the bottom part, the other three walls of the container are respectively provided with an air flue along the bottom part, the flue is communicated with a plurality of ventilation channels in the bottom part of the container, the bottom surface of the container is provided with a plurality of air sucking channels which are communicated with the ventilation channels, and the walls and the bottom of the container are provided with ventilation holes; adopting medium and low heat, after 1-2h, using carbon powder with the water content being 30% to cover the surface of the biomass to seal and break off oxide, and carrying out pyrolysis for 6-8h; and carrying out cooling separation, cyclone separator, temperature pyrolysis, gas cooling baffling, catalysis, cleaning, dehydration, and multiple-layer filtering to crude gas to obtain pyrolytic combustible gas, liquid tar, acetic acid liquid and unshaped carbon. By the method, no polluted air and polluted water are emitted. The method has the characteristics of high gasification efficiency, accurate composition extraction composition and environment protection as well as energy conservation.

Description

1. Technical field [0001] The invention relates to a method for producing combustible gas by using biomass raw materials such as straws, in particular to a biomass cracking method. 2. Background technology [0002] Biomass is a product synthesized by sunlight and water, including agricultural and forestry waste such as straw. my country is a large agricultural country, with 1.8 billion mu of food crops, and about 1.4 billion tons of biomass such as straw and agricultural and forestry waste per year. In addition to being used as fodder and agricultural fertilizer, a small amount is used as plank, and the remaining 30% is burned and rotted in the ground for farmers' own use. According to calculations, the emission of carbon dioxide per ton of straw is 0.0011 kg; the emission of sulfur dioxide is 0.067 kg; the emission of carbon monoxide is 0.0016 kg; [0003] At present, my country has not made a big breakthrough in the development of straw and agricultural and forestry wast...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10B57/00
CPCY02A50/20Y02E50/10
Inventor 刘少贵
Owner WANGJIANG GUIHE BIOMASS ENERGY EQUIP MFG
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