沼氣發(fā)電機組是必備的機器，其中有很多發(fā)電機具有較高的性價比優(yōu)勢：高穩(wěn)定性、最低潤滑油消耗量、高效清潔的燃燒滿足所有通用排放要求。

Biogas generator sets are essential machines, among which many generators have high cost-effectiveness advantages: high stability, minimum lubricant consumption, efficient and clean combustion that meets all general emission requirements.

氣體預(yù)處理及脫硫系統(tǒng)

Gas pretreatment and desulfurization system

氣體預(yù)處理系統(tǒng)主要包含除濕、過濾和穩(wěn)壓裝置，提供滿足發(fā)動機啟動和運行的氣體。氣體預(yù)處理系統(tǒng)是沼氣發(fā)電機組必須配置的設(shè)備。

The gas pretreatment system mainly includes dehumidification, filtration, and pressure stabilization devices, providing gas that meets the requirements for engine start-up and operation. The gas pretreatment system is a necessary equipment for biogas generators.

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(fā)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(fā)動機要求時，一定要進行脫硫處理。

Due to the presence of H2S gas in biogas, which is highly corrosive, any engine has certain requirements for H2S. When the content of H2S gas in biogas exceeds the requirements of the engine, 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(luò)合鐵、PDS等。

There are two methods of desulfurization: dry desulfurization and wet desulfurization. For gases with high H2S content (H2S content above 10000ppm), wet desulfurization is usually used. Wet desulfurization can use different catalysts such as complexed iron, PDS, etc.

脫硝裝置

Denitrification device

沼氣發(fā)電機組是長期運行的，且現(xiàn)有的環(huán)保法規(guī)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(fā)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 generator sets operate for a long time, and existing environmental regulations are becoming increasingly strict (with NOx emission requirements typically ranging from 100mg, 80mg, or even as low as 35mg), making denitrification devices an essential element. At present, Caterpillar gas generator sets have two types of emissions: 250mg and 500mg NOx. Its working principle is to use urea solution or ammonia water as a reducing agent, and under the action of a catalyst, reduce NOx in the flue gas to N2 and discharge it into the air, reducing pollution.

配電設(shè)備

Power distribution equipment

無論是高壓還是低壓的沼氣發(fā)電機組，配電設(shè)備必不可少，其電氣系統(tǒng)通常包含：并網(wǎng)控制柜、并網(wǎng)開關(guān)柜、PT柜（發(fā)電機組額定電壓為高壓時需配置）、配電柜、動力電纜及電纜槽或溝、控制電纜及電纜槽或溝。

Whether it is a high voltage or low voltage biogas generator set, distribution equipment is essential. Its electrical system usually includes: grid control cabinet, grid switch cabinet, PT cabinet (required when the rated voltage of the generator set is high voltage), distribution cabinet, power cable and cable trough or trench, control cable and cable trough or trench.

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