Ci gaban fasahar samar da hydrogen da nazarin tattalin arziki - Samar da hydrogen a cikin kwayar alkaline electrolytic

Samar da sinadarin hydrogen na ƙwayoyin alkaline fasaha ce ta samar da sinadarin hydrogen mai ƙarfin lantarki. Kwayoyin alkaline suna da aminci kuma abin dogaro, suna da tsawon rai na shekaru 15, kuma an yi amfani da su sosai a fannin kasuwanci. Ingancin aikin ƙwayoyin alkaline gabaɗaya shine kashi 42% ~ 78%. A cikin 'yan shekarun nan, ƙwayoyin alkaline electrolytic sun sami ci gaba a manyan fannoni biyu. A gefe guda, an inganta ingantaccen aikin ƙwayoyin kuma an rage farashin aiki da ke da alaƙa da amfani da wutar lantarki. A gefe guda kuma, yawan wutar lantarki yana ƙaruwa kuma farashin saka hannun jari yana raguwa.

An nuna ƙa'idar aiki ta alkaline electrolyzer a cikin hoton. Batirin ya ƙunshi electrodes guda biyu da aka raba ta hanyar diaphragm mai hana iska shiga. Haɗa batirin yana nutsewa cikin babban taro na alkaline liquid electrolyte KOH (20% zuwa 30%) don haɓaka ikon ionic. Hakanan ana iya amfani da mafita na NaOH da NaCl azaman electrolytes, amma ba a saba amfani da su ba. Babban rashin amfanin electrolytes shine suna da lalata. Tantanin halitta yana aiki a zafin jiki na 65 °C zuwa 100 °C. Cathode na tantanin halitta yana samar da hydrogen, kuma sakamakon OH - yana gudana ta cikin diaphragm zuwa anode, inda yake sake haɗuwa don samar da iskar oxygen.

Kwayoyin lantarki masu ƙarfi na alkaline sun dace da samar da hydrogen mai girma. Kwayoyin lantarki masu ƙarfi na alkaline da wasu masana'antun ke samarwa suna da ƙarfin samar da hydrogen mai yawa a (500 ~ 760Nm3/h), tare da amfani da wutar lantarki mai dacewa na 2150 ~ 3534kW. A aikace, don hana ƙirƙirar gaurayen iskar gas mai ƙonewa, yawan hydrogen yana iyakance zuwa 25% zuwa 100% na kewayon da aka kimanta, matsakaicin yawan wutar lantarki da aka yarda shine kusan 0.4A/cm2, zafin aiki shine 5 zuwa 100°C, kuma matsakaicin matsin lamba na electrolytic yana kusa da 2.5 zuwa 3.0 MPa. Lokacin da matsin lamba na electrolytic ya yi yawa, farashin saka hannun jari yana ƙaruwa kuma haɗarin samuwar cakuda iskar gas mai cutarwa yana ƙaruwa sosai. Ba tare da wani na'urar tsarkakewa ta taimako ba, tsarkin hydrogen da aka samar ta hanyar electrolytic cell cell na iya kaiwa 99%. Dole ne ruwan electrolytic cell alkaline electrolytic ya kasance tsarkakakke, don kare electrode da aiki mai aminci, watsar da ruwa ya zama ƙasa da 5S/cm.