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沼气净化的目的和方法?

时间:2021-03-31
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沼气净化的目的是脱除会对后续流程产生不利影响的杂质,包括硫化氢和水。
The purpose of biogas purification is to remove impurities, including hydrogen sulfide and water, which will have adverse effects on the subsequent process.
沼气中含有较多的硫化氢和饱和的水蒸气,随着温度的降低,水蒸气凝结成水,与硫化氢分离,对管道和设备形成腐蚀;另外,沼气中的水分凝结,假如管道保温不好容易在冬季形成管道梗塞,以至会影响阀门正常运转。另外从维护环境的角度,硫化氢随沼气熄灭产生的二氧化硫会污染环境。
Biogas contains more hydrogen sulfide and saturated water vapor. With the decrease of temperature, water vapor condenses into water, which is separated from hydrogen sulfide, causing corrosion to pipes and equipment. In addition, if the water in biogas condenses, it is easy to form pipe blockage in winter if the pipe insulation is not good, which will affect the normal operation of valves. In addition, from the perspective of environmental protection, sulfur dioxide produced by hydrogen sulfide extinguished with biogas will pollute the environment.
            生物脱硫
脱除沼气中硫化氢办法,可采用物理法、化学法及生物法。物理脱硫法普通采用活性炭法;
Physical, chemical and biological methods can be used to remove hydrogen sulfide from biogas. The physical desulfurization method is usually activated carbon method;
化学脱硫法中的干法脱硫普通采用氧化铁脱硫剂,化学脱硫法中的湿法脱硫普通采湿法888脱硫和络合铁脱硫;生物法主要指的是生物脱硫。详细计划选择时要思索沼气中硫化氢含量和请求去除程度。
In chemical desulfurization method, iron oxide desulfurizer is commonly used in dry desulfurization, while in chemical desulfurization method, wet 888 desulfurization and complex iron desulfurization are commonly used in wet desulfurization; biological desulfurization mainly refers to biological desulfurization. The content of hydrogen sulfide in biogas and the required removal degree should be considered in the selection of detailed plan.
沼气脱水主要包括重力法脱水、低温冷凝法和深度脱水如分子筛等。
Biogas dehydration mainly includes gravity dehydration, low temperature condensation and deep dehydration, such as molecular sieve.
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:生物脱硫
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: biological desulfurization .

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