沼氣提純主要目的是去除二氧化碳獲得高純度甲烷，沼氣提純技術(shù)多源于天然氣、合成氨變換氣的脫碳技術(shù)。由于沼氣的處理量遠小于天然氣或合成氨變換氣，在脫碳技術(shù)選擇上更注重小型化、節(jié)能化。

　　The main purpose of biogas purification is to remove carbon dioxide and obtain high-purity methane. Biogas purification technology is mainly derived from decarbonization technology of natural gas and synthetic ammonia transformation gas. Due to the much smaller processing capacity of biogas compared to natural gas or synthetic ammonia gas, more emphasis is placed on miniaturization and energy conservation in the selection of decarbonization technologies.

　　沼氣可提純制成生物天然氣，是可再生清潔能源。在沼氣行業(yè)內(nèi)部有一種生動的比喻，即建一口小型沼氣池，不僅相當于建了一座小型天然氣廠，還相當于建了一座小型污水處理廠、垃圾處理廠、有機肥料廠、小型林場。被群眾稱為“錢串子”“聚寶盆”，是一項投資小、作用大，利國利民的事業(yè)。

　　Biogas can be purified into bio natural gas, which is a renewable and clean energy source. There is a vivid metaphor within the biogas industry that building a small biogas digester is not only equivalent to building a small natural gas plant, but also equivalent to building a small sewage treatment plant, garbage treatment plant, organic fertilizer plant, and small forest farm. Known as "money skewers" and "treasure trove" by the masses, it is a small investment, high impact, and beneficial cause for the country and the people.

　　沼氣還可治理大氣污染、江河污染。使用沼氣，室內(nèi)一氧化碳的濃度比燃煤降低80%，二氧化碳濃度降低60%，硫化氫降低80%，飄塵濃度降低90%，同時還大幅度降低飲用水源的細菌總數(shù)、大腸桿菌、氨氮等各項指標，保護了水源，改善了水環(huán)境質(zhì)量。

　　Biogas can also treat air pollution and river pollution. By using biogas, the concentration of indoor carbon monoxide is reduced by 80% compared to coal, the concentration of carbon dioxide is reduced by 60%, the concentration of hydrogen sulfide is reduced by 80%, and the concentration of floating dust is reduced by 90%. At the same time, it significantly reduces the total number of bacteria, Escherichia coli, ammonia nitrogen and other indicators in drinking water sources, protecting water sources and improving water environment quality.

　　沼氣提純天然氣作為一種清潔的分布式能源，可替代石化天然氣，用于車用燃料、居民燃氣，是沼氣高值化、能源化利用的重要方式。我國不僅沼氣資源豐富，沼氣生產(chǎn)潛力巨大，未來生物質(zhì)能發(fā)展不可估量，當前沼氣的進一步利用開展的主要路線為發(fā)電和提純。迪爾空分可根據(jù)客戶不同的要求設(shè)計標準沼氣提純，沼氣提純設(shè)備環(huán)保、**、安全，實現(xiàn)經(jīng)濟效益與社會效益的雙贏。

　　Biogas purification of natural gas, as a clean distributed energy source, can replace petrochemical natural gas and be used as vehicle fuel and residential gas. It is an important way for high-value and energy utilization of biogas. China is not only rich in biogas resources, but also has enormous potential for biogas production. The future development of biomass energy is immeasurable. Currently, the main routes for further utilization of biogas are power generation and purification. Dier air separation can design standard biogas purification according to different customer requirements. The biogas purification equipment is environmentally friendly, * *, and safe, achieving a win-win situation of economic and social benefits.

　　1.沼氣提純技術(shù)的定義:沼氣提純技術(shù)是一種通過物理、化學(xué)或生物方法，將沼氣中的雜質(zhì)、氣體成分和水分分離凈化的技術(shù)，其主要目的是提高沼氣的熱值、純度和穩(wěn)定性，使其適用于工業(yè)、民用和發(fā)電等領(lǐng)域，2.沼氣提純技術(shù)的分類:根據(jù)處理方法和設(shè)備類型，沼氣提純技術(shù)可分為物理法、化學(xué)法和生物法三大類，物理法主要包括吸附、膜分離、結(jié)晶等方法:化學(xué)法主要包括酸堿中和、氧化還原等方法;生物法主要包括微生物降解酶解等方法。

　　1. Definition of Biogas Purification Technology: Biogas purification technology is a technology that separates and purifies impurities, gas components, and moisture in biogas through physical, chemical, or biological methods. Its main purpose is to improve the calorific value, purity, and stability of biogas, making it suitable for industrial, civilian, and power generation fields. 2. Classification of Biogas Purification Technology: According to the treatment method and equipment type, biogas purification technology can be divided into three categories: physical method, chemical method, and biological method. Physical method mainly includes adsorption, membrane separation, crystallization, etc.; chemical method mainly includes acid-base neutralization, oxidation-reduction, etc; Biological methods mainly include microbial degradation and enzymatic hydrolysis.

　　3.沼氣提純技術(shù)的應(yīng)用領(lǐng)域:沼氣提純技術(shù)在環(huán)境保護、能源利用和產(chǎn)業(yè)發(fā)展等方面具有廣泛的應(yīng)用前景，在環(huán)境保護方面，沼氣提純技術(shù)可以有效減少污染物排放，降低溫室氣體排放:在能源利用方面，沼氣提純后的天然氣可用于民用和工業(yè)燃料，苔代化石能源;在產(chǎn)業(yè)發(fā)展方面，沿氣提純技術(shù)可以推動沿氣產(chǎn)業(yè)的發(fā)展，促進農(nóng)業(yè)廢棄物的資源化利用。

　　3. Application areas of biogas purification technology: Biogas purification technology has broad application prospects in environmental protection, energy utilization, and industrial development. In terms of environmental protection, biogas purification technology can effectively reduce pollutant emissions and greenhouse gas emissions. In terms of energy utilization, natural gas purified from biogas can be used as civil and industrial fuel, replacing fossil fuels; In terms of industrial development, gas purification technology can promote the development of the gas industry and facilitate the resource utilization of agricultural waste.

　　4.沼氣提純技術(shù)的發(fā)展趨勢:隨著環(huán)境問題日益嚴重和能源需求的不斷增長，沼氣提純技術(shù)將朝著高效、環(huán)保、節(jié)能的方向發(fā)展，未來的研究方向包括:開發(fā)新型沼氣提純工藝和設(shè)備，提高沼氣提純效率;研究沼氣提純與能源轉(zhuǎn)化一體化技術(shù)，實現(xiàn)沼氣的綜合利用;加強沼氣提純技術(shù)的推廣和應(yīng)用，推動沼氣產(chǎn)業(yè)的發(fā)展。5.滔氣提純技術(shù)的前沿領(lǐng)域:目前，迢氣提純技術(shù)在國內(nèi)外的研究重點主要集中在以下幾個前沿領(lǐng)域:新型吸附材料的研發(fā)與應(yīng)用:膜分離技術(shù)的優(yōu)化與創(chuàng)新;生物法提純技術(shù)的高效化和規(guī)?；?沼氣提純與儲能技術(shù)的結(jié)合:智能化沼氣提純設(shè)備的研制。

　　4. Development trend of biogas purification technology: With the increasingly serious environmental problems and the continuous growth of energy demand, biogas purification technology will develop towards high efficiency, environmental protection, and energy conservation. Future research directions include: developing new biogas purification processes and equipment to improve biogas purification efficiency; Research on integrated technology of biogas purification and energy conversion to achieve comprehensive utilization of biogas; Strengthen the promotion and application of biogas purification technology, and promote the development of the biogas industry. 5. Frontier areas of gas purification technology: Currently, research on gas purification technology at home and abroad mainly focuses on the following cutting-edge areas: research and application of new adsorption materials, optimization and innovation of membrane separation technology; Efficient and scalable biological purification technology: combination of biogas purification and energy storage technology: development of intelligent biogas purification equipment.

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