Ukukhiqizwa kwe-hydrogen yamaseli e-alkaline kuwubuchwepheshe bokukhiqiza i-hydrogen e-electrolytic obuvuthiwe. Iseli le-alkaline liphephile futhi lithembekile, linokuphila iminyaka eyi-15, futhi lisetshenziswe kabanzi kwezentengiselwano. Ukusebenza kahle kweseli le-alkaline ngokuvamile kungu-42% ~ 78%. Eminyakeni embalwa edlule, amaseli e-alkaline electrolytic athuthuke ezicini ezimbili eziyinhloko. Ngakolunye uhlangothi, ukusebenza kahle kweseli okuthuthukisiwe kuthuthukisiwe futhi izindleko zokusebenza ezihambisana nokusetshenziswa kukagesi zinciphile. Ngakolunye uhlangothi, ubuningi bamanje okusebenza buyanda futhi izindleko zokutshalwa kwezimali ziyancipha.
Isimiso sokusebenza se-alkaline electrolyzer siboniswe esithombeni. Ibhethri liqukethe ama-electrode amabili ahlukaniswe yi-diaphragm engangeni moya. Ukuhlanganiswa kwebhethri kucwiliswa ekugxilweni okuphezulu kwe-alkaline liquid electrolyte KOH (20% kuya ku-30%) ukuze kwandiswe ukuhanjiswa kwe-ionic. Izixazululo ze-NaOH ne-NaCl nazo zingasetshenziswa njengama-electrolyte, kodwa azivamile ukusetshenziswa. Ububi obukhulu bama-electrolyte ukuthi ayagqwala. Iseli lisebenza ekushiseni okungu-65 °C kuya ku-100°C. I-cathode yeseli ikhiqiza i-hydrogen, kanti i-OH ephumelayo - igeleza nge-diaphragm iye kwi-anode, lapho ihlangana khona ukuze ikhiqize i-oxygen.
Amaseli e-alkaline electrolytic athuthukile afanelekela ukukhiqizwa kwe-hydrogen enkulu. Amaseli e-alkaline electrolytic enziwe abanye abakhiqizi anamandla aphezulu kakhulu okukhiqiza i-hydrogen ku-(500 ~ 760Nm3/h), kanye nokusetshenziswa kwamandla okuhambisanayo okungu-2150 ~ 3534kW. Empeleni, ukuvimbela ukudalwa kwezingxube zegesi ezivuthayo, isivuno se-hydrogen sinqunyelwe ku-25% kuya ku-100% webanga elilinganiselwe, ubuningi bamanje obuvunyelwe obungaba ngu-0.4A/cm2, izinga lokushisa lokusebenza lingu-5 kuya ku-100°C, kanti ingcindezi ephezulu ye-electrolytic iseduze no-2.5 kuya ku-3.0 MPa. Lapho ingcindezi ye-electrolytic iphezulu kakhulu, izindleko zokutshalwa kwezimali ziyanda futhi ingozi yokwakheka kwengxube yegesi eyingozi iyanda kakhulu. Ngaphandle kwanoma iyiphi idivayisi yokuhlanza eyisizayo, ubumsulwa be-hydrogen obukhiqizwa yi-alkaline cell electrolysis bungafinyelela ku-99%. Amanzi e-alkaline electrolytic cell electrolytic kumele abe msulwa, ukuze kuvikelwe i-electrode kanye nokusebenza okuphephile, ukuhanjiswa kwamanzi kungaphansi kuka-5S/cm2.
Isikhathi sokuthunyelwe: Feb-02-2023