Process and apparatus for producing biomass gas

Abstract

The invention relates to a method and a device for preparing biomass fuel from biomass materials. The method comprises the following steps: loading biomass materials in a gas generating chamber, and carrying out pyrolysis to generate mixed gas; cracking the tar to generate a combustible gas; filtering off fly-ash and residual tar in the combustible gas; carrying out gas-water separation to separate water; and deodorizing to obtain the biomass fuel. The device comprises the gas generating chamber (2) fixed on a pedestal (1), a material storage chamber (3) fixed on the upper side of the gas generating chamber (2), a cracking catalyst absorber (4) fixed on the upper side of the material storage chamber (3), a gas-water separator (5) communicated with the cracking catalyst absorber (4), and a deodorizing and gas storage box (6) communicated with the gas-water separator (5). The device and the method have the advantages that the device and the method can effectively remove tar, fly-ash, vapor, odor, etc. in the biomass fuel without contaminating the environment and can ensure the combustion heat efficiency of the biomass fuel, etc.

Description

1. Technical field: [0001] The present invention relates to a method and device for preparing biomass gas, in particular to a method for utilizing biomass: various crop stalks, firewood, firewood, sawdust, leaves, livestock excrement produced by professional breeding households, waste raw materials of professional breeding households , Chinese herbal medicine slag, waste plastic products, domestic garbage, etc., are a preparation method and device for preparing biomass gas from raw materials. 2. Background technology: [0002] With the rapid development of the state-run economy and the massive exploitation of coal, oil, and natural gas, resources such as coal, oil, and natural gas are also rapidly decreasing. People have paid attention to using biomass as a new energy source to replace coal, oil, and natural gas. At present, the device for producing biomass gas from biomass has the following disadvantages: 1. The produced gas contains a large amount of tar; 2. There is too m...

AI Technical Summary

Problems solved by technology

At present, the device for producing biomass gas from biomass has the following disadvantages: 1. The produced gas contains a large amount of tar; 2. There is too much fly ash in the gas; 3. There is too much water vapor in the gas; 4. The strong smell of gas seriously pollutes the environment and makes people unbearable

A large amount of tar and fly ash can easily cause blockage of gas equipment, pipelines, stoves, etc.; water vapor in the gas is easy to condense into water during the flow process, which will also cause blockage of pipes, etc., and the water vapor entering the combustion area of ​​the stove quickly It absorbs a large amount of heat, which reduces the thermal efficiency of the gas; the peculiar smell in the gas will be emitted in the surrounding air during combustion, seriously polluting the environment and making it unbearable

Due to the above shortcomings, it is difficult to popularize and apply the current biomass gas device, and it is also difficult to popularize biomass as a new energy source to replace coal, oil, natural gas and other disposable energy sources.

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