Kei roto i te hau māori i tangohia he nui o te hau waikawa CO2, ka pā mai pea ngā raruraru pēnei i te hekenga o te uara wera me te waikura o ngā paipa. Nō reira, me tango te waro i mua i te kawe me te whakamahinga o ngā paipa.
E ai ki te tātai uara wera o te hau māori i roto i te paerewa ā-motu (GB/T 11062-2014), ka taea te tatau ko te 10mol% CO2 ka heke te uara wera o te methane mō ia mita pūtoru, tata ki te 9.80%. Ina noho tahi te CO2 me te mamaoa wai, ā, he nui ake te pēhanga wāhanga i te 207kPa, ka nui te waikura ki ngā taputapu me ngā paipa, ā, me mahi ētahi atu mahi ārai-waikura. Nō reira, me tino tangohia te hau māori mai i te CO2 i mua i te kawe ki ngā paipa arumoni.
Ka whakamahia te tukanga MDEA hei tango i te CO2 mai i te hau maori.
Ngā āhuatanga ā-tinana, ā-matū hoki o te MDEA me te mātāpono tango waro
Ko te MDEA, ingoa pūtaiao ko N-methyldiethanolamine, he wai matotoru, kāore he tae, he paku kōwhai rānei.
Tātai ngota: CH3N(CH2CH2OH)2,
Te pāmahana koropupū: 246~249 ℃ /760mmhg; te taumaha motuhake: 1.0425g/ml (20 ℃);
Te pūwāhi tio: -21 ℃ (te parakore 99%); te matotoru: 101Cp (20 ℃);
Ka ngāwari te whakaranu ki te wai, te etanoru, te etera, me ētahi atu; he ngoikore te kawakore i roto i te wai; ka puta te tauhohenga matū i roto i te hauhā waro waikawa me te hau hauwai whanariki, ā, i te pēhanga teitei ake, ka nui ake te tauhohenga matū o te hauhā waro me te hau hauwai whanariki. Nō reira, ko te tukanga mimiti katoa he tukanga mimiti ā-tinana, ā-matū hoki.
I muri i te mimiti i te hauwai whanariki me te hauhā waro, ka tomo te wai MDEA ki te tāke mura hei mimiti tere i te korehau, kātahi ka tukuna ki te pourewa whakaora. Ka whakamahanahia te wai momona, ka pirau i te raro o te pourewa kia tukuna katoatia te hauhā waro me te hauwai whanariki. I taua wā anō, ka piki te hau i te raro o te pourewa hei hanga i tētahi pānga tangohanga tuarua ki te wai momona i te tihi o te pourewa; nō reira, ko te tukanga whakaora katoa he tukanga whakaora ā-tinana, ā-matū hoki. Ko te tauhohenga matū motuhake koia tēnei:
R2R'N + H2S R2R'NH +HS (tauhohenga inamata)
R2R'N+CO2+ H2O R2R'NH +HCO3 (tauhohenga puhoi)
He tohunga a Hengzhong ki te maimoatanga puna hau, te purenga hau māori, te whakaora LPG, Te tipu LNG me huinga whakaputa hau māori.
Whakapā mai:
Te Kamupene Taputapu Aunoatanga Hengzhong o Sichuan
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Wā tuku: Hakihea-03-2023