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Preparation method of high-purity biomass combustible gas

A gas preparation and biomass technology, which is applied in the manufacture of combustible gas, gasification process, mobile gasifier, etc., can solve the problems of inapplicability, complex equipment, high energy consumption, reduce investment, improve preparation efficiency, and facilitate moving effect

Inactive Publication Date: 2020-07-14
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the purification methods of biomass combustible gas are mostly high-pressure water washing method, pressure swing adsorption method, membrane separation and purification method, etc. This kind of device has complicated process equipment, large investment and high energy consumption, and is generally suitable for large-scale biomass combustible gas projects.
These processes are not suitable for small and medium-sized biomass combustible gas projects with large volume and wide area

Method used

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  • Preparation method of high-purity biomass combustible gas
  • Preparation method of high-purity biomass combustible gas

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A high-purity biomass combustible gas preparation device, such as the attached figure 1 And attached figure 2 As shown, it mainly includes the tank body (8) and the biological filler layer (6) in it; the biological filler layer (6) is located in the tank body (8), and the grid plate (5) and A support plate (4), the support plate (4) is welded to the tank body (8); the tank body (8) has an air outlet (12) on the top and a semi-ellipsoidal head ( 3), the upper part of the side wall is provided with a filler feeding port (9) and a raw material feeding port (13), and the lower part of the side wall is provided with a discharge port (14) and an air inlet (15); the discharge port (14 ) and the air inlet (15) are respectively located above and below the support plate (4); the air inlet (15) is connected to the air distributor (2) in the tank (8).

[0026] The biological filler layer (6) is made of block solid biochar with a certain shape and mechanical strength, and the hyd...

Embodiment 2

[0032] A method for preparing high-purity biomass combustible gas (using agricultural and forestry waste straw and livestock and poultry manure as raw materials):

[0033] Biochar is first made into a block solid with a certain shape and mechanical strength, and then hydrogen-eating methanogens are attached to these biochars through immobilized culture to make biofillers; the biochar fillers are passed through the examples Fill the filler inlet (9) of the high-purity biomass combustible gas preparation device into the tank (8) to form a biological filler layer (6); take the air-dried agricultural and forestry waste straw and chop it to about 3 cm, and at the same time Take fresh livestock and poultry manure and sieve to remove impurities, then mix the two according to the ratio of carbon to nitrogen 25:1, and add water to prepare a dry matter concentration of 4% to 10% (take a small value in summer and a large value in winter ) is injected into the inside of the tank (8) from ...

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Abstract

The invention relates to a preparation method of high-purity biomass combustible gas. The invention relates to the preparation method of high-purity biomass combustible gas, which realizes the preparation of high-purity biological combustible gas by introducing exogenous hydrogen, adding a biological filler layer and utilizing waste biomass raw materials and microorganisms. According to the invention, the effective utilization of waste biomass resources is realized on the premise of reducing the cost, reducing the investment and having no pollution to the environment, and the application and popularization of the biomass combustible gas are facilitated.

Description

technical field [0001] The invention relates to the field of utilization of biomass resources, in particular to a method for preparing high-purity biomass combustible gas. Background technique [0002] Biomass combustible gas is a combustible mixed gas produced by organic biomass under anaerobic conditions through the collaborative fermentation of a variety of microorganisms, and its main components are methane and carbon dioxide. Usually, methane accounts for 60%~65%, carbon dioxide accounts for 35%~40%, and contains a small amount of hydrogen sulfide and other gases. [0003] The presence of carbon dioxide in biomass combustible gas reduces the energy density of biomass combustible gas. If the biomass combustible gas used is to meet the natural gas standard or be used as a vehicle fuel, the carbon dioxide must be removed. At present, the purification methods of biomass combustible gas are mostly high-pressure water washing method, pressure swing adsorption method, membran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/30C10J3/72
CPCC10J3/20C10J3/30C10J3/72C10J2200/31C10J2300/0916C10J2300/0966
Inventor 陈潇林菲
Owner NORTHWEST A & F UNIV