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為什么要脫除硫化氫?

硫化氫是一種無(wú)機(jī)化合物,常溫下無(wú)色有刺激性氣味,有劇毒的氣體,硫化氫為易燃危險(xiǎn)品,與空氣混合能形成爆炸性混合物;下面讓我們了解一下為什么要脫除硫化氫!

Hydrogen sulfide is an inorganic compound, colorless at room temperature, pungent smell, highly toxic gas, hydrogen sulfide is flammable dangerous goods, mixed with air can form an explosive mixture; let's understand why to remove hydrogen sulfide!
沼氣產(chǎn)出時(shí)會(huì)攜帶大量的硫化氫;硫化氫與氧結(jié)合燃燒后生成二氧化硫;與燃燒產(chǎn)生的水蒸氣結(jié)合成亞硫酸,不但對(duì)金屬表面產(chǎn)生腐蝕,而且會(huì)造成對(duì)大氣環(huán)境的污染,影響人體健康。因此,在使用沼氣之前,必須脫除其中的硫化氫。
When biogas is produced, it will carry a large amount of hydrogen sulfide; hydrogen sulfide will combine with oxygen to generate sulfur dioxide after combustion; it will combine with water vapor to form sulfite, which will not only corrode the metal surface, but also pollute the atmospheric environment and affect human health. Therefore, hydrogen sulfide must be removed before biogas is used.
                    沼氣提純
沼氣脫除硫化氫是指沼氣在利用之前需要脫除沼氣中的硫化氫;根據(jù)具體沼氣的氣量、成分、用途及工作現(xiàn)場(chǎng)環(huán)境等綜合因素,常用的沼氣脫硫方法分為化學(xué)脫硫、物理脫硫、生物脫硫等幾種。
The removal of hydrogen sulfide by biogas refers to the removal of hydrogen sulfide in biogas before the utilization of biogas. According to the comprehensive factors of specific biogas, such as gas volume, composition, use and working site environment, the commonly used biogas desulfurization methods are divided into chemical desulfurization, physical desulfurization, biological desulfurization and so on.
化學(xué)脫硫主要分為干法脫硫和濕法脫硫兩大類, 干法脫硫按原理與方法又可分為化學(xué)吸附法、化學(xué)吸收法和催化加氧法三種,其中化學(xué)吸收法是近代工業(yè)中比較常用比較有效的脫硫手段。 濕法脫硫按溶液的吸收與再生性質(zhì)又分為氧化法、吸收法;
Chemical desulfurization is mainly divided into dry desulfurization and wet desulfurization. According to the principle and method, dry desulfurization can be divided into chemical adsorption method, chemical absorption method and catalytic oxygenation method. Chemical absorption method is a common and effective desulfurization method in modern industry. According to the absorption and regeneration properties of solution, wet desulfurization can be divided into oxidation method and absorption method;
物理脫硫法常用有機(jī)溶劑作為吸收劑,其吸收完全是個(gè)物理過(guò)程,當(dāng)富液降低壓力時(shí),硫化氫就完全放出。
In physical desulfurization, organic solvent is often used as absorbent, and its absorption is a physical process. When the pressure of rich liquid is reduced, hydrogen sulfide is completely released.
生物脫硫法包括有氧生物脫硫和無(wú)氧生物脫硫;有氧生物脫硫法是向沼氣反應(yīng)器或單獨(dú)的脫硫塔注入空氣,硫化氫與氧通過(guò)微生物作用生成單質(zhì)硫或硫酸鹽。無(wú)氧生物脫硫是一種新型脫硫工藝,該工藝以沼液好氧后處理過(guò)程的硝酸鹽和亞硝酸鹽為電子受體,以沼氣中的硫化氫為電子供體而實(shí)現(xiàn)同步脫氮脫除硫化氫。
Biological desulfurization method includes aerobic biological desulfurization and anaerobic biological desulfurization; aerobic biological desulfurization method is to inject air into biogas reactor or separate desulfurization tower, and hydrogen sulfide and oxygen generate elemental sulfur or sulfate through microbial interaction. Anaerobic biological desulfurization is a new type of desulfurization process, in which nitrate and nitrite in aerobic post-treatment process of biogas slurry are used as electron acceptors, and hydrogen sulfide in biogas is used as electron donor to realize simultaneous denitrification and hydrogen sulfide removal.
感謝您的閱讀,希望以上內(nèi)容對(duì)您有所幫助,如您想了解更多精彩內(nèi)容請(qǐng)點(diǎn)擊我們的官網(wǎng):沼氣提純http://www.fengkecheng.cn
Thank you for reading, hope the above content is helpful to you, if you want to know more wonderful content, please click our official website: biogas purification http://www.fengkecheng.cn .

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