Methane purification and primary filtration device

Abstract

The invention discloses a methane purification and primary filtration device which comprises a filtration tank, wherein the filtration tank is connected with a methane collection tank; methane is collected from the methane collection tank; generally, a blower is utilized for pumping out the methane in the methane collection tank and then pumping the methane into the filtration tank; the filtration tank comprises a tank body, the tank body is internally provided with a clapboard which divides the tank body into upper and lower parts, and an opening is reserved in the middle of the clapboard; the bottom of the tank body is provided with a gas inlet cavity, the upper side of the gas inlet cavity is provided with a primary filtration chamber, and a secondary filtration chamber is formed above the clapboard. The methane purification and primary filtration device has the beneficial effects that the design is reasonable and the structure is simple; by virtue of arranging the independent gas inlet cavity, the inlet gas is divided into two branches, one branch of gas is discharged by virtue of a gas vent in a spiral gas inlet pipe, and is changed into irregular flow direction to collide and interfere with the other branch of gas so as to achieve a speed reduction effect; a filter screen is internally provided with natural clinoptiloite zeolite which serves as an adsorbent, so that a primary purification and filtration effect for the methane is achieved.

Description

technical field [0001] The invention relates to the field of biomass energy development and utilization, in particular to a biogas purification primary filter device. Background technique [0002] Biogas is a combustible gas with high calorific value, the main component is methane (CH 4 ) and carbon dioxide (CO 2 ) and a small amount of nitrogen (N 2 ), hydrogen (H 2 ), oxygen (O 2 ), hydrogen sulfide (H 2 S) and other gases, in which the methane content is 45% to 60%. Compared with other gases, biogas has better antiknock performance and is a good clean fuel. Traditionally, biogas is used for heating, cooking and lighting. With the continuous increase of biogas production, the medium and high-end utilization methods of biogas continue to expand. After purification and purification, biogas can be used for combined heat and power generation, incorporated into natural gas pipeline networks, vehicle fuel, chemical raw materials, and fuel cells. The Laholm biogas plant ...

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Problems solved by technology

In addition, due to the working principle of the traditional biogas purification primary filter device, the gas needs to be processed repeatedly, resulting in a large total volume.

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