1, te pānga o te nui rawa o te wai ki te mahi tātari ngota
Ko te mahi matua o te pūwhakamātautau hau wehewehe he tango i te makuku me te ihirangi warowaihā mai i te hau hei whakarato hau maroke mō ngā pūnaha e whai ake nei. Ko te hanganga taputapu he moenga moenga whakapae, ko te teitei whakakī alumina whakahohe o raro he 590 mm, ko te teitei whakakī tātari ngota ngota 13X o runga he 962 mm, ā, ka whakawhitihia ngā pūwhakamātautau e rua i waenga i a rātou anō. I roto i ēnei, ko te alumina whakahohe te nuinga o te wā ka mimiti i te wai i roto i te hau, ā, ka whakamahia e te tātari ngota tōna mātāpono mimiti whiriwhiri ngota ngota hei mimiti i ngā warowaihā. I runga i te hanganga rauemi me ngā āhuatanga mimiti o te tātari ngota ngota, ko te raupapa mimiti ko: H2O> H2S> NH3> SO2 > CO2 (te raupapa mimiti o ngā hau kawakore). H2O> C3H6> C2H2> C2H4, CO2, C3H8> C2H6> CH4 (te raupapa mimiti o ngā warowaihā). Ka kitea ko ia te mea tino kaha ki te mimiti mō ngā ngota wai. Heoi, he nui rawa te ihirangi wai o te tātari ngota ngota, ā, ka hangaia e te wai kore utu he tioata wai me te tātari ngota ngota. Kāore tonu e taea e te pāmahana (220 °C) e whakaratohia ana e te mamaoa 2.5MPa e whakamahia ana mō te whakaora pāmahana teitei te tango i tēnei wāhanga o te wai tioata, ā, ko te rahi o te pūwero o te tātari ngota ngota e nohoia ana e ngā ngota wai tioata, nō reira kāore e taea te mimiti tonu i ngā warowaihā. Nō reira, ka whakakorengia te tātari ngota ngota, ka poto te roa o te mahi, ā, ka uru ngā ngota wai ki te whakawhiti wera pereti iti-pēhanga o te pūnaha whakatikatika, ka meinga te awa rere o te whakawhiti wera kia tio, kia ārai, ka pā ki te awa rere me te pānga whakawhiti wera o te whakawhiti wera, ā, i ngā take kino, kāore e taea e te taputapu te mahi noa.
2. Te pānga o te H2S me te SO2 ki te mahi tātari ngota
Nā te kaha o te mimiti o te tātari ngota, me te kaha hoki o te mimiti o ngā ngota wai, he pai ake hoki tōna kaha ki te H2S me te SO2 i tōna kaha mimiti ki te CO2. Ka noho te H2S me te SO2 i te mata hohe o te tātari ngota, ā, ka tauhohe ngā wāhanga waikawa ki te tātari ngota, ka pāngia te tātari ngota, ka whakakorengia hoki, ā, ka heke te kaha mimiti o te tātari ngota. Ka poto ake te roa o te ora o te tātari ngota.
Hei whakarāpopototanga, ko te nui rawa o te makuku, te nui o te H2S me te hau SO2 i roto i te hau putanga o te pourewa whakamatao hau wehenga hau te take matua mō te whakakorenga o te tātari ngota me te whakapoto i te roa o te mahi. Mā te whakahaere pakari i ngā tohu tukanga, te tāpiri i te tātari makuku putanga o te kaihoroi, te whiriwhiri tika i ngā momo harore, te horopeta wā tika o te harore, te tāpiri wai mata o te pourewa whakamatao wai, te tātari tauira auau o te turuturu whakawhiti wera me ētahi atu mahi, ka taea e te mahi haumaru me te pumau o te kaihoroi te whai wāhi ki te kimi wā tika, te whakatūpato wā tika, te whakatikatika wā tika, ki te whānuitanga nui ki te whakarite i te whakamahinga pai o te tātari ngota.
Wā tuku: 24 o Ākuhata-2023
