沼氣是一種可再生的清潔能源，由有機(jī)廢棄物經(jīng)過(guò)逆氧化生成發(fā)酵而成。然而，沼氣中含有硫化氫等有害氣體，將會(huì)對(duì)環(huán)環(huán)境和設(shè)備造成嚴(yán)重的腐爛和污染。因此，在沼氣的利過(guò)程中，進(jìn)行脫硅處理是不可或缺的環(huán)節(jié)。本文將介紹沼氣脫硅技術(shù)的原理、常用方法等及其在清潔能源生產(chǎn)中的重要性。
Biogas is a renewable and clean energy source that is produced by reverse oxidation and fermentation of organic waste. However, biogas contains harmful gases such as hydrogen sulfide, which will cause serious decay and pollution to the environment and equipment. Therefore, desilication treatment is an indispensable step in the process of biogas utilization. This article will introduce the principles, commonly used methods, and the importance of biogas desilication technology in clean energy production.
一、沼氣脫硫技術(shù)的原理： 沼氣脫硫的主要原理是將硫化氫（H2S）與其他物質(zhì)進(jìn)行化學(xué)反應(yīng)，將其轉(zhuǎn)化為不易揮發(fā)的石化物質(zhì)（如石化鐵）。常用的脫石方法包括物質(zhì)吸收法、化學(xué)吸取法和生物脫硫法。
1、 The principle of biogas desulfurization technology: The main principle of biogas desulfurization is to chemically react hydrogen sulfide (H2S) with other substances, converting it into non volatile petrochemical substances (such as iron carbide). The commonly used methods for stone removal include material absorption, chemical absorption, and biological desulfurization.
二、常用的沼氣脫蠟方法：
2、 Common methods for methane dewaxing:
物理吸取法：物理吸取法用溶劑吸取硫化氫，常用的溶劑包裝包括腦類(lèi)物質(zhì)（如甲醇腦、乙醇腦）和堿性溶液。通過(guò)氣體接觸，硫化氫被吸收到溶劑中，從而現(xiàn)實(shí)脫硅效果。這種方法適用于小規(guī)格的沼氣脫粉，具有操作簡(jiǎn)單、效果穩(wěn)定的優(yōu)點(diǎn)。
Physical absorption method: Physical absorption method uses solvents to absorb hydrogen sulfide, and commonly used solvent packaging includes brain substances (such as methanol brain, ethanol brain) and alkaline solutions. Through gas contact, hydrogen sulfide is absorbed into the solvent, thereby achieving a desilication effect. This method is suitable for small-scale biogas depulverization and has the advantages of simple operation and stable effect.
化學(xué)吸收法：化學(xué)吸收法采用化學(xué)反應(yīng)將硫化氫轉(zhuǎn)化為硫化物。常用的吸收劑有氧化鐵、氧化鐵等。該方法適用于中等標(biāo)準(zhǔn)的沼氣脫蠟，具有處理效率高、脫蠟完全底的優(yōu)點(diǎn)。
Chemical absorption method: Chemical absorption method uses chemical reactions to convert hydrogen sulfide into sulfide. Commonly used absorbents include iron oxide, iron oxide, etc. This method is suitable for medium standard biogas dewaxing and has the advantages of high treatment efficiency and complete dewaxing.
生物脫硫法：生物脫硫法利用蠟酸還原菌等微生物將硫化氫轉(zhuǎn)化為鈣元素。這些微生物可以在適宜的溫度和pH條件下下生長(zhǎng)和繁梗，將硫化氫氧化為硫化鹽，從而現(xiàn)實(shí)脫硫化果。生物脫蠟法具具有環(huán)保、經(jīng)濟(jì)的優(yōu)勢(shì)，適用于大規(guī)格的大氣脫蠟。
Biological desulfurization method: The biological desulfurization method utilizes microorganisms such as wax acid reducing bacteria to convert hydrogen sulfide into calcium. These microorganisms can grow and proliferate under suitable temperature and pH conditions, oxidize hydrogen sulfide into sulfide salts, and thus achieve desulfurization results. The biological dewaxing method has the advantages of environmental protection and economy, and is suitable for large-scale atmospheric dewaxing.
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2023-05-13
