Incazelo
I-skid yegesi yemvelo yokususa i-carburization (i-decarbonization), iyithuluzi elibalulekile ekuhlanzweni noma ekwelashweni kwegesi yemvelo. I-PSA ubuchwepheshe bokususa i-carburization obunamandla aphansi obufeza ukumuncwa kwe-CO2 kanye nokumuncwa ngokushintsha ingcindezi yokusebenza. Lobu buchwepheshe buvame ukumuncwa futhi buhlukanise i-CO2 negesi yemvelo ngengcindezi yokusebenza engu-0.5 ~ 1MPa, bese budlula ekumuncweni kwe-vacuum ukuze kuqedwe ukuvuselelwa kwe-adsorbent. Indlela ye-PSA ingeyokumuncwa ngokomzimba, yize uma iqhathaniswa nokumuncwa kwamakhemikhali, amandla ayo okumuncwa alinganiselwe futhi ukukhetha kwayo kuphansi; Kodwa-ke, ukuhamba kwenqubo ye-PSA kulula, i-adsorbent inokuphila isikhathi eside kwenkonzo, kulula ukuyivuselela, futhi inokusetshenziswa kwamandla okuphansi. Ngesikhathi esifanayo, inezinzuzo ezifana nokwenza okuzenzakalelayo okuphezulu, izinzuzo ezinhle zemvelo, kanye nokuguquguquka okuphezulu kokusebenza. Ikakhulukazi uma ubhekene negesi yokuphakelwa enomfutho ophezulu, ngokuvamile asikho isidingo sokuyicindezela futhi. Indlela ye-PSA ingasetshenziswa ekushiseni kwegumbi ngaphandle kwesidingo sokushisa nokupholisa, okusindisa ukusetshenziswa kwamandla okuphindwe kabili uma kuqhathaniswa nendlela ye-TSA; Ngaphezu kwalokho, uma kuqhathaniswa nendlela efanayo ye-TSA, indlela ye-PSA idinga umthamo omncane kakhulu wokufaka.
Okuqukethwe kwe-carbon dioxide ensimbini yemvelo akufanele kube ngaphezu kuka-3%. Futhi i-carbon dioxide emanzini ngemva kwensimbi inomsoco onamandla kakhulu. Uma inani le-PH lifana, isilinganiso se-acidity se-carbon dioxide naso siphakeme, ngakho-ke izinga lokugqwala kwe-carbon dioxide ensimbini nalo liphakeme.
I-Pressure swing adsorption (PSA) ubuchwepheshe obusha obusetshenziswa ukuhlukanisa ingxube yegesi kubuchwepheshe bokuhlukanisa i-adsorption. Uma kuqhathaniswa nendlela yendabuko yokumunca amakhemikhali, ubuchwepheshe be-PSA buyakhanga ngokwezomnotho ekususweni nasekubuyiselweni kwe-H2S kanye ne-CO2 kugesi yemvelo, futhi buthuthukiswa ngamandla.
Ubuchwepheshe bokuhlukanisa igesi be-PSA bunezinzuzo zokusebenza okulula, ukulahlekelwa umfutho ophansi, ukuphelelwa amanzi emzimbeni ngenkathi kususwa i-CO2, iphuzu eliphansi lamazolo legesi ehlanziwe namanzi, futhi imikhiqizo ingahlangabezana nezidingo zokuthunyelwa kwegesi kwamanye amazwe. I-PSA ingasetshenziswa ekugxilweni kwe-CO2 kanye nokususwa kwe-sulfurization ekhethiwe kugesi yemvelo.
Ishadi lokugeleza
Ukumuncwa kwenziwa ngaphansi kwengcindezi kanti ukumuncwa kwenziwa ngaphansi kwengcindezi encishisiwe. Ngenxa yokuthi umjikelezo wokumuncwa umfushane futhi ukushisa kokumuncwa akunakuphela ngesikhathi, kungasetshenziswa ekumuncweni. Ngakho-ke, izinga lokushisa lombhede wokumuncwa okubangelwa ukushisa kokumuncwa kanye nokushisa kokumuncwa kunoshintsho oluncane, olungabhekwa njengenqubo ye-isothermal. Ukusebenza kombhede wokumuncwa okugxilile okukodwa, kungakhathaliseki ukuthi ukumuncwa kokushintshashintsha kwezinga lokushisa noma ukumuncwa kokucindezela kokumuncwa, ngoba i-adsorbent idinga ukuvuselelwa, ukumuncwa kuyaphazamiseka. Embonini, kusetshenziswa imibhede emibili noma ngaphezulu yokumuncwa, ukuze ukumuncwa nokuvuselelwa kombhede wokumuncwa kwenziwe ngokushintshana (noma ngomjikelezo olandelanayo), ukuqinisekisa ukuqhubeka kwenqubo yonke yokumuncwa.
Izici ezisebenzayo
Ukusebenza kahle kwe-skid ye-pressure swing adsorption decarbonization kungu-90%. I-CO2 ingahlukaniswa ngokushintsha kwengcindezi kanye ne-adsorption ebonakalayo, ngaphandle kokusabela kwamakhemikhali. Ngaphezu kokususwa kwe-CO2, ubuchwepheshe be-PSA busetshenziswa kabanzi ekubuyiseleni nasekuhlanzeni i-H2, CH4, CO, CO2 kanye namanye amagesi.
