Kupita patsogolo kwa ukadaulo wopanga haidrojeni ndi kusanthula zachuma - Kupanga haidrojeni mu selo ya electrolytic ya alkaline

Kupanga kwa haidrojeni ya maselo a alkaline ndi ukadaulo wokhwima wa kupanga haidrojeni ya electrolytic. Maselo a alkaline ndi otetezeka komanso odalirika, okhala ndi moyo wa zaka 15, ndipo akhala akugwiritsidwa ntchito kwambiri pamalonda. Kugwira ntchito bwino kwa maselo a alkaline nthawi zambiri kumakhala 42% ~ 78%. M'zaka zingapo zapitazi, maselo a alkaline electrolytic apita patsogolo m'mbali ziwiri zazikulu. Kumbali imodzi, kugwira ntchito bwino kwa maselo kwakwera ndipo ndalama zogwirira ntchito zokhudzana ndi kugwiritsa ntchito magetsi zachepa. Kumbali ina, kuchuluka kwa magetsi ogwirira ntchito kumawonjezeka ndipo ndalama zomwe zimayikidwa zimachepa.

Mfundo yogwirira ntchito ya alkaline electrolyzer ikuwonetsedwa pachithunzichi. Batire ili ndi ma electrode awiri olekanitsidwa ndi diaphragm yosalowa mpweya. Kusonkhana kwa batire kumamizidwa mu kuchuluka kwakukulu kwa alkaline liquid electrolyte KOH (20% mpaka 30%) kuti iwonjezere mphamvu ya ionic conductivity. Mayankho a NaOH ndi NaCl angagwiritsidwenso ntchito ngati ma electrolyte, koma sagwiritsidwa ntchito kawirikawiri. Vuto lalikulu la ma electrolyte ndilakuti amawononga. Selo limagwira ntchito kutentha kwa 65 °C mpaka 100°C. Cathode ya selo imapanga hydrogen, ndipo OH yotuluka - imadutsa mu diaphragm kupita ku anode, komwe imalumikizananso kuti ipange mpweya.

Maselo apamwamba a alkaline electrolytic ndi oyenera kupanga haidrojeni yayikulu. Maselo a alkaline electrolytic opangidwa ndi opanga ena ali ndi mphamvu yayikulu kwambiri yopanga haidrojeni pa (500 ~ 760Nm3/h), ndi mphamvu yofanana yogwiritsira ntchito 2150 ~ 3534kW. Mwachizolowezi, kuti apewe kupanga zosakaniza za mpweya woyaka, kuchuluka kwa haidrojeni kumakhala kochepa pa 25% mpaka 100% ya mulingo wovomerezeka, kuchuluka kwamphamvu kwamagetsi komwe kungaloledwe ndi pafupifupi 0.4A/cm2, kutentha kwa ntchito ndi 5 mpaka 100°C, ndipo kuthamanga kwakukulu kwa electrolytic kumakhala pafupi ndi 2.5 mpaka 3.0 MPa. Kuthamanga kwa electrolytic kukakwera kwambiri, ndalama zogulira zimawonjezeka ndipo chiopsezo cha kusakanikirana kwa mpweya woopsa chimawonjezeka kwambiri. Popanda chipangizo chilichonse choyeretsera, kuyera kwa haidrojeni komwe kumapangidwa ndi electrolysis ya maselo a alkaline kumatha kufika 99%. Madzi a electrolytic a maselo a alkaline electrolytic ayenera kukhala oyera, kuti ateteze electrode ndi ntchito yotetezeka, kuyendetsa madzi kumakhala kochepera 5S/cm.