沼氣發電機組是必備的機器，其中Cat?（卡特）CG170系列機組具有較高的性價比優勢：

A biogas generator set is an essential machine, among which Cat? The (Carter) CG170 series units have a high cost performance advantage:

高盈利能力：CG170系列機組發電效率高達44.2%。

High profitability: The CG170 series units have a power generation efficiency of up to 44.2%.

高穩定性:基于無氣流燃燒和擴大機油箱延長了維護保養間隔; 每年運行時間高達8000小時或以上。

High stability: Based on no airflow combustion and expanding the oil tank, maintenance intervals are extended; The annual running time can reach 8000 hours or more.

最低潤滑油消耗量：潤滑油消耗率約為同等品牌機組的三分之一。

Minimum lubricating oil consumption: The lubricating oil consumption rate is about one-third of that of units of the same brand.

排放控制：高效清潔的燃燒滿足所有通用排放要求。

Emission control: Efficient and clean combustion meets all universal emission requirements.

氣體預處理及脫硫系統

Gas pretreatment and desulfurization system

氣體預處理系統主要包含除濕、過濾和穩壓裝置，提供滿足發動機啟動和運行的氣體。氣體預處理系統是沼氣發電機組必須配置的設備。

The gas pretreatment system mainly includes dehumidification, filtration, and stabilization devices, providing gas that meets the requirements of engine start and operation. The gas pretreatment system is a necessary equipment for the biogas generator set.

由于沼氣中通常含有H?S氣體，H?S氣體具有高度腐蝕性，任何發動機對H?S均有一定的要求。當沼氣中的H?S氣體含量高于發動機要求時，一定要進行脫硫處理。

Due to the usual presence of H in biogas? S gas, H? S gas has high corrosiveness, and any engine is sensitive to H? S has certain requirements. When H in biogas? When the S gas content exceeds the engine requirements, desulfurization treatment must be carried out.

脫硫方法有兩種：干法脫硫和濕法脫硫。對于高H?S含量氣體（H?S含量在10000ppm以上）時，通常采用濕法脫硫。濕法脫硫可以采用不同催化劑：絡合鐵、PDS等。

There are two types of desulfurization methods: dry desulfurization and wet desulfurization. For high H? Wet desulfurization is usually used for gases with an S-content (H-S content above 10000ppm). Wet desulfurization can use different catalysts such as complex iron and PDS.

脫硝裝置

Denitration device

沼氣發電機組是長期運行的，且現有的環保法規越來越嚴格（對NOx的排放要求通常為100mg、80mg，甚至低至35mg。），脫硝裝置成為必備的要素。目前卡特彼勒燃氣發電機組有兩種排放類型：250mg 和 500mg NOx。其工作原理是利用尿素溶液或氨水作為還原劑，在催化劑的作用下將煙氣中的NOx 還原成N2排放在空氣中，減少污染。

Biogas power generation units operate for a long time, and existing environmental regulations are becoming increasingly strict (NOx emission requirements are usually 100mg, 80mg, and even as low as 35mg), making denitrification devices an essential element. At present, Caterpillar gas generators have two types of emissions: 250mg and 500mg NOx. Its working principle is to use urea solution or ammonia water as a reducing agent, under the action of a catalyst, to reduce NOx in the flue gas to N2 and discharge it into the air, reducing pollution.