He hangarau hanga hauwai hiko kua tino pakari te hanga hauwai pūtau kawakore. He haumaru, he pono hoki te pūtau kawakore, he 15 tau te roa o te ora, ā, kua whānuitia te whakamahinga arumoni. Ko te whai huatanga mahi o te pūtau kawakore he 42% ~ 78%. I ngā tau kua pahure ake nei, kua ahu whakamua ngā pūtau hiko kawakore i ngā āhuatanga matua e rua. I tētahi taha, kua pai ake te whai huatanga o te pūtau, ā, kua whakaitihia ngā utu whakahaere e pā ana ki te whakapaunga hiko. I tētahi atu taha, ka piki ake te kiato o te iahiko whakahaere, ā, ka heke te utu haumi.
Kei te pikitia te kaupapa mahi a te electrolyzer kawakore. E rua ngā irahiko o te pākahiko e wehea ana e te diaphragm ā-hau. Ka rumakina te huihuinga pākahiko ki roto i te kukū tiketike o te electrolyte wai kawakore KOH (20% ki te 30%) hei whakanui ake i te kawe ionic. Ka taea hoki te whakamahi i ngā otinga NaOH me NaCl hei electrolytes, engari kāore i te whakamahia whānuitia. Ko te ngoikoretanga matua o ngā electrolytes ko te waikura. Ka mahi te pūtau i te pāmahana o te 65 °C ki te 100 °C. Ka whakaputa te cathode o te pūtau i te hauwai, ā, ka rere te OH – i roto i te diaphragm ki te anode, ka honoa anō ki te whakaputa hāora.
He pai ngā pūtau hiko kawakore matatau mō te hanga hauwai nui. He tino teitei te kaha whakaputa hauwai o ngā pūtau hiko kawakore i hangaia e ētahi kaihanga i te (500 ~ 760Nm3/h), me te kaha e pau ana i te 2150 ~ 3534kW. I roto i te mahi, hei ārai i te hanganga o ngā ranunga hau mura, ka herea te hua hauwai ki te 25% ki te 100% o te awhe whakatauranga, ko te kiato iahiko mōrahi e whakaaetia ana ko te 0.4A/cm2, ko te pāmahana whakahaere ko te 5 ki te 100°C, ā, ko te pēhanga hiko mōrahi e tata ana ki te 2.5 ki te 3.0 MPa. Ina tino teitei te pēhanga hiko, ka piki ake te utu haumi, ā, ka nui ake te tūponotanga o te hanganga o te ranunga hau kino. Ki te kore he taputapu horoi āwhina, ka taea e te parakore o te hauwai i hangaia e te hiko pūtau kawakore te eke ki te 99%. Me parakore te wai hiko pūtau hiko kawakore, hei tiaki i te hiko me te mahi haumaru, he iti iho i te 5S/cm te kawe wai.
Te wā tuku: Hui-tanguru-02-2023