A fagen rabuwar iskar gas da tsarkakewa, tare da ƙarfafa kariyar muhalli, haɗe tare da buƙatar tsaka tsaki na carbon na yanzu, CO.2kamawa, shan iskar gas mai cutarwa, da rage gurɓataccen hayaki sun zama batutuwa masu mahimmanci. A lokaci guda, tare da canji da haɓaka masana'antar masana'antar mu, buƙatar iskar gas mai tsabta ta ƙara haɓaka. Rabuwar iskar gas da fasahohin tsarkakewa sun haɗa da ƙarancin zafin jiki, haɓakawa da watsawa. Za mu gabatar da matakai guda biyu da aka fi sani da su na talla, wato matsi swing adsorption (PSA) da m zafin jiki adsorption (TSA).
Matsakaicin matsa lamba adsorption (PSA) babban ka'ida ya dogara ne akan bambance-bambance a cikin halayen adsorption na abubuwan gas a cikin kayan aiki mai ƙarfi da halayen haɓakar haɓakar haɓakawa tare da matsa lamba, ta amfani da canjin matsa lamba na lokaci-lokaci don kammala rabuwar gas da tsarkakewa. Canje-canje na zafin jiki (TSA) kuma yana amfani da bambance-bambance a cikin aikin adsorption na kayan aikin gas akan kayan aiki mai ƙarfi, amma bambancin shine cewa ƙarfin tallan zai shafi canje-canjen zafin jiki, da yin amfani da yanayin canjin lokaci-lokaci don cimma rabuwar gas. da tsarkakewa.
Ana amfani da adsorption na matsa lamba a cikin kama carbon, samar da hydrogen da oxygen, rabuwar methyl nitrogen, rabuwar iska, cirewar NOx da sauran filayen. Saboda ana iya canza matsa lamba da sauri, zagayowar tallan jujjuyawar matsa lamba gabaɗaya gajere ne, wanda zai iya kammala zagayowar cikin 'yan mintuna kaɗan. Kuma ana amfani da adsorption mai canzawa sosai a cikin kama carbon, VOCs tsarkakewa, bushewar iskar gas da sauran filayen, iyakance ta hanyar canjin yanayin zafi na tsarin, lokacin dumama da sanyaya yana da tsayi, yanayin yanayin adsorption mai canzawa zai kasance mai tsayi, wani lokacin yana iya kaiwa ga ƙari. fiye da sa'o'i goma, don haka yadda ake samun saurin dumama da sanyaya shi ma ɗaya daga cikin hanyoyin bincike na adsorption na yanayin zafi. Saboda bambance-bambancen lokacin sake zagayowar aiki, don a yi amfani da su a cikin ci gaba da tafiyar matakai, PSA sau da yawa yana buƙatar hasumiyai da yawa a layi daya, kuma hasumiya 4-8 lambobi ne na gama-gari (mafi guntun zagayowar aiki, lambobi masu layi ɗaya). Yayin da lokacin tallan zafin jiki ya fi tsayi, ginshiƙai biyu gabaɗaya ana amfani da su don tallan zazzabi mai canzawa.
Abubuwan da aka fi amfani da su don tallan yanayin zafin jiki mai canzawa da tallan jujjuyawar matsa lamba sune sieve kwayoyin halitta, carbon da aka kunna, gel silica, alumina, da sauransu, saboda babban yanki na musamman, ya zama dole don zaɓar adsorbent mai dacewa bisa ga bukatun tsarin rabuwa. Adsorption na matsi da ɓarkewar matsa lamba na yanayi sune halayen tallan motsin matsa lamba. Matsa lamba na adsorption na matsi na iya kaiwa MPa da yawa. Matsakaicin yawan zafin jiki na adsorption mai canzawa gabaɗaya yana kusa da zazzabi na ɗaki, kuma zafin zafin dumama na iya kaiwa sama da 150 ℃.
Domin inganta aiki da kuma rage yawan amfani da makamashi, vacuum pressure swing adsorption (VPSA) da fasahar zafin jiki (TVSA) an samo su daga PSA da PSA. Wannan tsari ya fi rikitarwa da tsada, yana sa ya dace da sarrafa iskar gas mai girma. Vacuum lilo adsorption adsorption ne a matsa lamba na yanayi da desorption ta hanyar yin famfo. Hakazalika, vacuumizing a lokacin da desorption tsari kuma iya rage desorption zafin jiki da kuma inganta desorption yadda ya dace, wanda zai zama m ga yin amfani da low-sa zafi a cikin aiwatar da injin m zazzabi adsorption.
Lokacin aikawa: Fabrairu-05-2022
