As we all know, biogas is a mixed gas, its main component is methane, followed by carbon dioxide, hydrogen sulfide (H2S), nitrogen and other components. Usually, before we use biogas, we will do desulfurization treatment. Do you know why we do this?
The methane content is 55%-70%, the carbon dioxide content is 28%-44%, and the average content of hydrogen sulfide is 0.034%. Biogas is a colorless, odorous, toxic and odorous gas. Its main component, methane, is a colorless, odorless, odorless and non-toxic gas at room temperature. The formula for methane is CH4, a simple hydrocarbon that combines carbon atoms with four hydrogen atoms.
The weight ratio of methane to air is 0.54, which is about half as light as air. The solubility of methane is very low. At 20 C and 0.1 kPa, 100 units of water can only dissolve 3 units of methane. Methane is a simple organic compound, a gas fuel. When burning, the flame is blue, and the high temperature of Zui can reach 1? 400??? Pure methane has a calorific value of 36.8 kilojoules per cubic meter. The calorific value of biogas is about 23.4 kJ per cubic meter, which is equivalent to the calorific value of 0.55 kg diesel oil or 0.8 kg coal when fully burned. From the analysis of thermal efficiency, the amount of heat that biogas can utilize per cubic meter is equivalent to the amount of heat that can be utilized by burning 3.03 kg of coal.
Desulfurization of biogas can greatly improve the utilization rate and utilization rate of biogas. In addition, if the sulfide in biogas is not treated, it will cause corrosion to the biogas combustion equipment and increase the occurrence of dangerous accidents.
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2019-09-25
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