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沼氣提純的變壓吸附法有什么特點(diǎn)?

沼氣提純的變壓吸附法應(yīng)用十分常見(jiàn),下面小編給大家普及一下這種方法的特點(diǎn),希望對(duì)大家有所幫助!

Pressure swing adsorption (PSA) method for biogas purification is very common. Here is a short edition to popularize the characteristics of this method. I hope it will be helpful to everyone!
變壓吸附法(PSA)是在加壓條件下,利用沼氣中的CH4、CO2以及N2在吸附劑表面被吸附的能力不同而實(shí)現(xiàn)分離氣體成分的一種方法。組分的吸附量受壓力及溫度的影響,壓力升高時(shí)吸附量增加,壓力降低時(shí)吸附量減少;當(dāng)溫度升高時(shí)吸附量減小,溫度降低時(shí)吸附量增加。變壓吸附對(duì)氣體來(lái)源的要求非常嚴(yán)格,H2S的存在會(huì)導(dǎo)致吸附劑永久性中毒,并且變壓吸附要求氣體干燥,所以變壓吸附前要先脫除H2S和H2。
Pressure swing adsorption (PSA) is a method to separate gas components under pressure by using different adsorption capacities of CH4, CO2 and N2 in biogas on the surface of adsorbent. The adsorption capacity of components is affected by pressure and temperature. The adsorption capacity increases with the increase of pressure and decreases with the decrease of pressure. The adsorption capacity decreases with the increase of temperature and increases with the decrease of temperature. Pressure swing adsorption (PSA) requires very strict gas sources. The existence of H2S will lead to permanent poisoning of adsorbents. PSA requires gas drying. So H2S and H2 should be removed before PSA.
沼氣提純?cè)O(shè)備
吸附材料在該技術(shù)中起到關(guān)鍵的作用,一般采用不同類型的活性炭、沸石、硅膠、氧化鋁和分子篩作為吸附材料。不同的吸附材料對(duì)沼氣的純化效果各不相同。目前,以活性炭和分子篩為主的碳基吸附劑,在研究沼氣提純方面經(jīng)常被使用。近年來(lái)出現(xiàn)的一些新型吸附材料,如有序介孔材料、胺修飾吸附劑和金屬框架物(MOFs)對(duì)CO2具有很高吸附選擇性,應(yīng)用前景廣闊,而且MOFs被認(rèn)為是在CO2分離方面具潛力。
Adsorption materials play a key role in this technology. Generally, different types of activated carbon, zeolite, silica gel, alumina and molecular sieve are used as adsorption materials. Different adsorption materials have different purification effects on biogas. At present, carbon-based adsorbents, mainly activated carbon and molecular sieve, are often used in the study of biogas purification. In recent years, some new adsorbents, such as ordered mesoporous materials, amine modified adsorbents and metal frameworks (MOFs), have high adsorption selectivity for CO2 and have broad application prospects. MOFs are considered to be the most promising adsorbent for CO2 separation.
今天的精彩內(nèi)容就暫且和大家介紹到這里了,如果大家有其他想要補(bǔ)充的地方,歡迎大家到沼氣提純的官網(wǎng)給我們留言評(píng)論:http://www.aycqc.cn,或者直接撥打我們的咨詢熱線,我們將給您一個(gè)滿意的答復(fù)!
Today's wonderful content will be introduced here for the time being. If you have something else to add, you are welcome to leave a message and comment on the official website of biogas purification: http://www.aycqc.cn, or call our hotline directly. We will give you a satisfactory answer!

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