Tangohia ngā poke kino i roto i te hau whāngai me ngā matū ka totoka i te wā o te tukanga cryogenic. Pērā i te hauwai whanariki, te hauhā waro, te wai, te hauwaiwai taumaha me te mercury. He rerekē te hau whāngai e tukatukahia ana e ngā momo tipu LNG rerekē, nō reira he rerekē anō hoki ngā tikanga me ngā tukanga maimoatanga.
Ko te hau waikawa ko te H2S, te CO2, te cos, te RSH me ētahi atu poke hau. Ko te tango i te hau waikawa e kiia ana ko te desulfurization me te decarbonization, ko te desulfurization tuku iho rānei. I te wā e purea ana te hau maori, ka taea te tango i te H2S me te CO2 i te wā kotahi, nā te mea ka taea te tango tahi i ēnei wāhanga e rua i roto i te tikanga amine waipiro me te purenga adsorption sieve ngota.
2.3.2 te kōwhiringa o te tikanga whakakorenga whanariki
I roto i te wāhanga whakapūnga hau maori, e toru ngā tikanga purenga noa, arā, te tikanga waipiro amine, te tikanga potash wera (benfied) me te tikanga sulfonol amine.
Mekuri: ka taea e te noho mai o te mekuri te waikura kino i ngā taputapu konumohe. Ina noho te Mekuri (tae atu ki te mekuri taketake, ngā katote mekuri me ngā matū mekuri waro), ka tauhohe te konumohe ki te wai hei whakaputa i ngā hua waikura paura mā, ka kino rawa atu ngā āhuatanga o te konumohe. He iti noa te mekuri hei whakararu i ngā taputapu konumohe, ā, ka whakararu hoki te Mekuri i te taiao me te kino ki ngā kaimahi i te wā tiaki. Nō reira, me tino whakawhāiti te nui o te mekuri. Ko te tango i te mekuri e hangai ana ki te tauhohenga o te mekuri me te whanariki i roto i te tauhohenga whakakorikori.
Warowaihā taumaha: e pā ana ki ngā warowaihā i runga ake i te C5+. I roto i ngā warowaihā, ina huri te taumaha ngota mai i te iti ki te nui, ka huri tōna pāmahana kohua mai i te iti ki te teitei. Nō reira, i roto i te huringa o te hau maori whakapūpū, ka whakapūpūhia tuatahitia ngā warowaihā taumaha. Ki te kore e wehea tuatahitia te warowaihā taumaha, ka wehea rānei i muri i te whakapūpū, ka tio pea te warowaihā taumaha ka ārai i te taputapu. Ka tangohia wāhangatia ngā warowaihā taumaha e te tātari ngota me ētahi atu mea mimiti i te wā e maroke ana, ā, ka wehea te toenga e te wehenga cryogenic.
Ngā: ka taea te whakamakuku ki te iti noa o te wai hei hanga i te H2S me te CO2, ka waikura ai ngā taputapu. He ngāwari te whakaranu ki te propane kua whakahokia mai. I te nuinga o te wā ka tangohia ngātahitia me te H2S me te CO2 i te wā e whakakorengia ai te waikawa.
Hīriama: ko te hau māori te pūtake matua o te hīriama, ā, me wehe me te whakamahi. He nui te uara whakamahinga mā te whakakotahi i te wehenga kiriuhi me te wehenga kiriuhi.
Hauota: mā te pikinga ake o tōna ihirangi ka uaua ake te whakapūmau i te hau māori. Ko te tikanga whakakā whakamutunga te tikanga e whakamahia whānuitia ana mō te tango whiriwhiri mai i te LNG.
Ko te wāhanga matua o te hau māori ko te methane (CH4), ā, ko tōna pāmahana kohua paerewa ko 111k (- 162 ℃).
Ko te mātotoru o te methane wai i te pāmahana kohua paerewa ko 426kg/m3, ā, ko te mātotoru o te methane hau i te āhua paerewa ko 0.717kg/m3, me te rerekētanga tata ki te 600 ngā wā. Ko te rerekētanga nui o te rōrahi te take matua mō te rokiroki me te kawe i te hau maori wai.
Wā tuku: Hakihea-03-2021