Landfill gas power generation pretreatment method and pretreatment device thereof

Abstract

The invention discloses a pretreatment method for generating electricity by garbage landfill gas and a pretreatment device; the method comprises: a. removing the impurities; b. cooling and dehydrating the processed garbage landfill gas to ensure the relative humidity of the garbage landfill gas to be 60-80% and the discharged garbage landfill gas temperature to be less than or equal to 40 DEG C; c. pressurizing and gas transporting, namely, absorbing and propelling the garbage landfill gas by a blower, with the gas flow speed controlled between 8m / s and 25m / s and the discharged garbage landfill gas pressure controlled between 8Kpa and 20Kpa; d. wind cooling, adjusting the gas temperature normal temperature and meeting the gas inlet temperature requirement of the generator set; and e. precise filtering, namely, further filtering the garbage landfill gas by a precision filtration device to remove the solid particle, dust and other impurities in the garbage landfill gas to ensure the content of dust and other impurities in the gas to be less than and equal to 10mg / Nm; the invention has the advantages of environment protection and energy saving, long equipment service life, achievable mass and efficient garbage landfill gas utilization for electricity generation, etc.

Description

technical field [0001] The invention relates to a gas pretreatment method, in particular to a landfill gas pretreatment method and a pretreatment device thereof. Background technique [0002] With the rapid development of my country's national economy, the demand for energy is increasing. The development of new energy and renewable energy is a strategic measure for the sustainable development of my country's economy. Landfill gas, as a clean and renewable biomass energy, its development and utilization is an important way to implement the scientific concept of development and energy conservation and emission reduction, and it has developed rapidly in my country in recent years. [0003] Biogas is a mixed gas whose main components are methane and carbon dioxide. The composition of biogas produced by different biogas projects is very different. However, in general, the content of methane is generally 40-70%, carbon dioxide is 30-60%, and trace components are about 1%, mainly...

AI Technical Summary

Problems solved by technology

[0009] In the process of pressurizing the equipment first and then draining the water, the burden on the equipment is increased, the corrosion is accelerated, and the driving energy is wasted

[0010] The treated landfill gas contains high levels of harmful components and impurities, which is not suitable for large-scale and high-efficiency utilization of landfill gas for power generation

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