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为什么要脱除硫化氢?

时间:2021-03-12
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硫化氢是一种无机化合物,常温下无色有刺激性气味,有剧毒的气体,硫化氢为易燃危险品,与空气混合能形成爆炸性混合物;下面让大家了解一下为什么要脱除硫化氢!
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!
沼气产出时会携带大量的硫化氢;硫化氢与氧结合燃烧后生成二氧化硫;与燃烧产生的水蒸气结合成亚硫酸,不但对金属表面产生腐蚀,而且会造成对大气环境的污染,影响人体健康。因此,在使用沼气之前,必须脱除其中的硫化氢。
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.
                    沼气提纯
沼气脱除硫化氢是指沼气在利用之前需要脱除沼气中的硫化氢;根据具体沼气的气量、成分、用途及工作现场环境等综合因素,常用的沼气脱硫方法分为化学脱硫、物理脱硫、生物脱硫等几种。
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.
化学脱硫主要分为干法脱硫和湿法脱硫两大类, 干法脱硫按原理与方法又可分为化学吸附法、化学吸取法和催化加氧法三种,其中化学吸取法是近代工业中比较常用比较有效的脱硫手段。 湿法脱硫按溶液的吸取与再生性质又分为氧化法、吸取法;
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;
物理脱硫法常用有机溶剂作为吸取剂,其吸取完全是个物理过程,当富液降低压力时,硫化氢就完全放出。
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.
生物脱硫法包括有氧生物脱硫和无氧生物脱硫;有氧生物脱硫法是向沼气反应器或单独的脱硫塔注入空气,硫化氢与氧通过微生物作用生成单质硫或硫酸盐。无氧生物脱硫是一种新型脱硫工艺,该工艺以沼液好氧后处理过程的硝酸盐和亚硝酸盐为电子受体,以沼气中的硫化氢为电子供体而实现同步脱氮脱除硫化氢。
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.
感谢您的阅读,希翼以上内容对您有所帮助,如您想了解更多精彩内容请点击大家的官网:沼气提纯
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 .

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