Pankhani ya kulekanitsa gasi ndi kuyeretsa, ndi kulimbikitsa chitetezo cha chilengedwe, kuphatikizapo kufunikira kwaposachedwa kwa carbon, CO.2kugwidwa, kuyamwa kwa mpweya woipa, ndi kuchepetsa mpweya woipa wa zinthu zakhala nkhani zofunika kwambiri. Panthawi imodzimodziyo, pamodzi ndi kusintha ndi kukweza kwa makampani athu opanga zinthu, kufunikira kwa gasi woyeretsa kwambiri kumakulirakulira. Matekinoloje olekanitsa gasi ndi kuyeretsa amaphatikiza kutentha pang'ono distillation, adsorption ndi diffusion. Tidzafotokoza njira ziwiri zodziwika bwino komanso zofananira za kutsatsa, zomwe ndi Pressure swing adsorption (PSA) ndi variable temperature adsorption (TSA).
Pressure swing adsorption (PSA) mfundo yayikulu imachokera ku kusiyana kwa mawonekedwe a adsorption a zigawo za gasi muzinthu zolimba komanso mawonekedwe a kusintha kwa voliyumu ya adsorption ndi kukakamiza, pogwiritsa ntchito kusintha kwanthawi ndi nthawi kuti amalize kulekana ndi kuyeretsa gasi. Variable-temperature adsorption (TSA) imatengeranso mwayi pakusiyana kwa magwiridwe antchito a gasi pazinthu zolimba, koma kusiyana kwake ndikuti mphamvu ya adsorption imakhudzidwa ndi kusintha kwa kutentha, komanso kugwiritsa ntchito kutentha kwanthawi ndi nthawi kuti tipeze kupatukana kwa gasi. ndi kuyeretsedwa.
Pressure swing adsorption imagwiritsidwa ntchito kwambiri pakugwidwa kwa kaboni, kupanga haidrojeni ndi okosijeni, kupatukana kwa nitrogen methyl, kulekanitsa mpweya, kuchotsa NOx ndi magawo ena. Chifukwa kupanikizika kumatha kusinthidwa mwachangu, kuzungulira kwa kuthamanga kwa swing adsorption nthawi zambiri kumakhala kwaufupi, komwe kumatha kumaliza kuzungulira mphindi zochepa. Ndipo kusintha kutentha adsorption zimagwiritsa ntchito mu kugwidwa mpweya, VOCs kuyeretsedwa, kuyanika mpweya ndi madera ena, malire ndi kutentha kutengerapo mlingo wa dongosolo, Kutentha ndi kuzirala nthawi yaitali, variable kutentha adsorption mkombero adzakhala yaitali, nthawi zina akhoza kufika zambiri. kuposa maola khumi, momwe mungakwaniritsire kutentha ndi kuziziritsa mwachangu ndi chimodzi mwazinthu za kafukufuku wosiyanasiyana wa kutentha. Chifukwa cha kusiyana kwa nthawi yoyendetsera ntchito, kuti igwiritsidwe ntchito mosalekeza, PSA nthawi zambiri imafuna nsanja zingapo zofanana, ndipo nsanja za 4-8 ndi nambala zofananira (zofupikitsa zozungulira, ziwerengero zofananira). Popeza nthawi ya kusinthasintha kwa kutentha ndi yayitali, mizati iwiri imagwiritsidwa ntchito potengera kutentha kosiyanasiyana.
Ma adsorbents omwe amagwiritsidwa ntchito kwambiri pakusintha kutentha kwa kutentha ndi kuthamanga kwa swing adsorption ndi sieve yama cell, activated carbon, silica gel, alumina, etc. dongosolo kulekana. Pressurization adsorption ndi atmospheric pressure desorption ndi mawonekedwe a pressure swing adsorption. Kupanikizika kwa adsorption adsorption kumatha kufikira ma MPa angapo. Kutentha kogwira ntchito kwa kutentha kosiyanasiyana kumakhala pafupi ndi kutentha kwa chipinda, ndipo kutentha kwa kutentha kwa kutentha kumatha kufika kupitirira 150 ℃.
Pofuna kukonza bwino komanso kuchepetsa kugwiritsa ntchito mphamvu zamagetsi, matekinoloje a vacuum pressure swing adsorption (VPSA) ndi vacuum temperature swing adsorption (TVSA) amachokera ku PSA ndi PSA. Njirayi ndi yovuta komanso yokwera mtengo, yomwe imapangitsa kuti ikhale yoyenera pokonza gasi wamkulu. Vacuum swing adsorption ndi kutsatiridwa ndi kupsinjika kwa mumlengalenga ndi kutsika popopa vacuum. Momwemonso, kupukuta panthawi ya desorption kungathenso kuchepetsa kutentha kwa desorption ndikuwongolera bwino kwa desorption, zomwe zingathandize kugwiritsa ntchito kutentha kwapang'onopang'ono panthawi ya vacuum variable kutentha adsorption.
Nthawi yotumiza: Feb-05-2022
