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沼氣脫硫的作用原理以及優(yōu)勢(shì)

  沼氣脫硫作為一種新能源,得到越來越廣泛的運(yùn)用。

Biogas desulfurization, as a new energy source, is being increasingly widely used.

  1.脫硫的作用

1. The role of desulfurization

  沼氣中含有微量的硫化氫,略帶臭味,通常用于熱電聯(lián)產(chǎn)的燃?xì)獍l(fā)動(dòng)機(jī),或用于蒸汽或動(dòng)力出產(chǎn)的鍋爐。在焚燒過程中,硫化氫將轉(zhuǎn)化為硫化氫O4。這種酸極具腐蝕性,會(huì)在很短時(shí)間內(nèi)損壞發(fā)動(dòng)機(jī)或鍋爐。在焚燒前除掉硫化氫是必要的。

Biogas contains trace amounts of hydrogen sulfide, with a slight odor, and is usually used in gas engines for cogeneration, or in boilers for steam or power production. During the incineration process, hydrogen sulfide will be converted into hydrogen sulfide O4. This type of acid is highly corrosive and can quickly damage engines or boilers. It is necessary to remove hydrogen sulfide before incineration.

  2.進(jìn)步運(yùn)用壽數(shù)削減運(yùn)轉(zhuǎn)本錢

2. Improve the use of lifespan to reduce operating costs

  硫化氫腐蝕將逐年削減后端用氣設(shè)備的壽數(shù),這就是為什么內(nèi)燃機(jī)制造商要求沼氣中的硫化氫不能超過20-200ppm。否則,替換各類配件等修理的運(yùn)轉(zhuǎn)費(fèi)用將大幅度添加。此外,故障越多,修理費(fèi)將會(huì)進(jìn)步,收入大大降低。為保證體系設(shè)備安全,進(jìn)步設(shè)備運(yùn)用壽數(shù),滿意環(huán)保要求,需求去除硫化氫。

Hydrogen sulfide corrosion will gradually reduce the lifespan of backend gas equipment, which is why internal combustion engine manufacturers require that hydrogen sulfide in biogas cannot exceed 20-200ppm. Otherwise, the operating costs of replacing various accessories and repairing them will be significantly increased. In addition, the more malfunctions there are, the more repair costs will increase and the revenue will be greatly reduced. To ensure the safety of system equipment, improve the service life of equipment, and meet environmental requirements, it is necessary to remove hydrogen sulfide.

  3.保護(hù)環(huán)境,削減碳減排

3. Protecting the environment and reducing carbon emissions

  HS2是有毒氣體,未經(jīng)凈化的沼氣焚燒會(huì)導(dǎo)致二氧化硫的排放,形成嚴(yán)峻的惡臭問題以及酸雨。為了健康安全,在運(yùn)用沼氣之前必須要去除硫化氫。

20190830065832178.png

HS2 is a toxic gas, and the incineration of untreated biogas can lead to the emission of sulfur dioxide, resulting in severe odor problems and acid rain. For the sake of health and safety, hydrogen sulfide must be removed before using biogas.

  4.沼氣脫硫的辦法常用的有:生物脫硫、干法脫硫或濕法脫硫及其他脫硫辦法。

The commonly used methods for biogas desulfurization include biological desulfurization, dry desulfurization, wet desulfurization, and other desulfurization methods.

  當(dāng)沼氣從厭氧發(fā)酵裝置中產(chǎn)生時(shí),特別是在中高溫下發(fā)酵時(shí),它攜帶很多的硫化氫。因?yàn)檎託庵腥杂泻芏嗨魵?,水和沼氣中的硫化氫共同作用,加速了金屬管道、閥門、流量計(jì)的腐蝕和阻塞。此外,硫化氫焚燒后產(chǎn)生的二氧化硫與焚燒產(chǎn)品中的水蒸氣結(jié)合形成亞硫酸,對(duì)設(shè)備的金屬表面形成腐蝕,還污染大氣環(huán)境,影響人體健康。因而,在運(yùn)用沼氣之前,必須除掉其中的硫化氫。

When biogas is produced from anaerobic fermentation equipment, especially during fermentation at medium and high temperatures, it carries a lot of hydrogen sulfide. Because there is still a lot of water vapor in biogas, the combined action of water and hydrogen sulfide in biogas accelerates the corrosion and blockage of metal pipelines, valves, and flow meters. In addition, the sulfur dioxide generated after hydrogen sulfide incineration combines with the water vapor in the incineration product to form sulfite, which corrodes the metal surface of the equipment and pollutes the atmospheric environment, affecting human health. Therefore, before using biogas, hydrogen sulfide must be removed from it.

  工業(yè)上常用的沼氣脫硫辦法有干法脫硫、濕法脫硫和生物脫硫。

The commonly used methods for biogas desulfurization in industry include dry desulfurization, wet desulfurization, and biological desulfurization.

以上就是有關(guān) 沼氣脫硫 的介紹,想了解更多的內(nèi)容請(qǐng)點(diǎn)擊:http://www.tvjiang.com 我們將會(huì)全心全意為您提供滿分服務(wù),歡迎您的來電!

The above is an introduction to biogas desulfurization. To learn more, please click: http://www.tvjiang.com We will wholeheartedly provide you with full score service. Welcome to call us!

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