由于生物天然氣可以直接用作石化天然氣的替代燃料，因此沼氣凈化技術(shù)的發(fā)展已成為增加天然氣供應(yīng)的重要方向。此外，石油價格上漲，許多人都為不斷增加的駕駛成本而感嘆。目前，沼氣脫硫凈化技術(shù)使得低成本駕駛不再是夢想。該技術(shù)不僅可以使沼氣直接替代汽油作為車用燃料，而且具有比汽油更好的抗爆性能，沼氣提純可以有效地增加能源供應(yīng)。
Biogas can be directly used as an alternative fuel for Petrochemical Natural gas, so the development of biogas purification technology has become an important direction to increase the supply of natural gas. In addition, the price of oil is rising, and many people lament the increasing cost of driving. At present, low-cost driving is no longer a dream due to biogas desulfurization and purification technology. This technology can not only make biogas directly replace gasoline as vehicle fuel, but also has better antiknock performance than gasoline. Biogas purification can effectively increase energy supply.
用于凈化的沼氣來源廣泛，主要來自有機廢物厭氧發(fā)酵產(chǎn)生的沼氣和垃圾填埋場產(chǎn)生的垃圾填埋氣。沼氣經(jīng)過脫水，除塵，脫硫后，可通過物理或化學(xué)方法有效去除沼氣中的CO2，使沼氣中甲烷含量提高到95%以上。雜質(zhì)氣體的熱值和質(zhì)量符合天然氣和車輛壓縮天然氣的標(biāo)準(zhǔn)。純化的天然氣可以用作車用氣體，工業(yè)用氣體或城市用氣體。
Biogas for purification comes from a wide range of sources, mainly from anaerobic fermentation of organic waste and landfill gas. After dehydration, dust removal and desulfurization, CO2 in biogas can be effectively removed by physical or chemical methods, and the methane content in biogas can be increased to more than 95%. The calorific value and quality of impurity gas meet the standards of natural gas and vehicle compressed natural gas. Purified natural gas can be used as vehicle gas, industrial gas or urban gas.
沼氣提純方法很多，包括高壓水洗，變壓吸附(PSA)，物理和化學(xué)吸附以及膜凈化。凈化過程因凈化方法而異，但目的是去除二氧化碳，硫化氫，蒸汽等氣體，以增加沼氣中的甲烷含量，提高燃燒效率，減少污染。
There are many ways to purify biogas, including high pressure water washing, pressure swing adsorption (PSA), physical and chemical adsorption and membrane purification. Purification process varies with purification methods, but the purpose is to remove carbon dioxide, hydrogen sulfide, steam and other gases, so as to increase the methane content in biogas, improve combustion efficiency and reduce pollution.
在這些方法中，其中一些在技術(shù)和設(shè)備上已經(jīng)非常成熟，并且在沼氣提純市場上占有主要份額，例如高壓水洗方法，PSA方法和理化吸附方法。同時，由于新材料的研究和應(yīng)用，膜分離技術(shù)已成為沼氣脫硫凈化的一種新的，流行的方法，這是沼氣脫硫凈化技術(shù)的重要發(fā)展方向。
Among these methods, some of them are very mature in technology and equipment, and occupy a major share in the biogas purification market, such as high-pressure water washing method, PSA method and physicochemical adsorption method. At the same time, due to the research and application of new materials, membrane separation technology has become a new and popular method of biogas desulfurization and purification, which is an important development direction of biogas desulfurization and purification technology.
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2021-06-02
