He mea nui te ine pēhanga ā-roto mō ngā tono rapa ethylene-propylene e uru ana ki te wai ethylene pēhanga teitei me tepropyleneKa taea e ngā pikinga ohorere o te pēhanga mai i te mimiti wai i roto i te tāke rokiroki wai ethylene te whakanui ake i te mōrearea o te pahūtanga me te turuturu. E whakaatu ana ngā raraunga NIST mā te pikinga 1 pae i runga ake i te paepae i roto i te tāke rokiroki ethylene 50 m³ ka taea te tuku i te 20+ kg te mamaoa i roto i ngā hēkona, ka nui rawa te urupare wā-tūturu.
Ko te pono o te tukanga i roto i ngā ahumahi rapa ethylene-propylene me whai i ngā tuku pēhanga wai ipurangi e tu atu ana i ngā pikinga hau rewa me ngā pikinga tere e kitea ana i roto i ngā wāhanga tauhohenga me ngā paipa. Mā ngā rerekētanga o te pēhanga kāore i te aroturukitia ka arahi pea ki te hua kāore i te tino hiahiatia, ki te kati rānei i te wā e hiahiatia ana, ka whakaitihia te putanga neke atu i te 5% ia tau i roto i ētahi tipu. Mā te tāutanga tika o te tuku pēhanga ka whakarite kia...etirenete haumaru o te tāke rokiroki mā te whakarato raraunga tonu ki ngā pūnaha haumaru raka.
Tāke Rokiroki Ethylene Wai
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Ko ngā tuku pēhanga ahumahi pēnei i ngā tauira Lonnmeter e whakarato ana i te tika FS ±0.1% puta noa i te awhe mahi 100–500 pae e kitea ana i roto i ēnei pūnaha. Mā te aroturuki i te pēhanga i te wā e kawe ana i te wai ethylene ka tiaki i ngā turuturu me te pēhanga nui rawa atu—koinei ngā tino take mō ngā huihuinga morearea i roto i te rāngai. Mā te ine tika i roto i te raina ka tautoko i te mahi haumaru, tonu, ā, ka whakanui ake i te hua i roto i ngā taiao pōrearea.
Kupu Whakataki
Mā te ine pēhanga ā-roto ka tere, ka tika hoki te urupare e tika ana mō te whakahaere i te whakakotahitanga o te rapa ethylene-propylene. Me whai rohe pēhanga pakari te wai ethylene me te propylene pēhanga teitei i te wā whakawhiti me te tauhohenga. Ka taea e ngā huringa ohorere o te pēhanga o te tāke rokiroki wai ethylene—he maha ngā wā mai i te mimiti cryogenic—te whakaoho i ngā hononga haumaru, i ngā pakaru kino rānei mēnā kāore e kitea tonutia. Ka whakawhirinaki te haumaru o te tāke rokiroki ethylene ki ngā pānui tonu hei tiaki i ngā turuturu me te pēhanga nui. Ka aroturukihia ēnei huringa e te lonnmeter ipurangi tuku pēhanga mō ngā wai i te wā tūturu, me te whakaata tika i ngā āhuatanga tukanga. Ka mau tonu te ine pumau o ngā tuku pēhanga ahumahi ahakoa te wiri, te whakamarumaru, te hauhautanga rānei e kitea ana i roto i ngā ahumahi rapa ethylene-propylene. Ka whakaitihia e te tāutanga tika o te tuku pēhanga te nekeneke o ngā taputapu me te pokanoa tohu, e tautoko ana i te tutuki me te aukati i ngā aituā. Ka tiakina e te ine ā-roto ngā kaimahi, ngā rawa, me te pono o te hua i te wā kawe me te rokiroki wai ethylene, e whakarite ana i te mahi maeneene puta noa i ngā tono rapa ethylene-propylene katoa.
Kauwhata Etirena
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Tirohanga Whānui mō te Tukanga Ahumahi
Ka pēhia te wai ethylene i te 5–15 MPa, ka papua mā roto i ngā paipa me te propylene ki roto i ngā tauhohenga motuhake mō te ethylene-propylene.rapangā tono. Ko ngā tuku pēhanga ahumahi, pērā i te tuku pēhanga ipurangi a Lonnmeter mō ngā wai, ka manatoko i ngā tere whāngai tika hei pupuri i ngā āhuatanga o te copolymer. Ka whakamahia e ngā tāke rokiroki wai ethylene te whakamarumaru korehau pakitara-rua, ka whakaiti i te kawe wera i raro i te 0.022 W/(m·K), ka whakaiti i ngā mōrearea mura wera. He mea whakahau te tāutanga o te tuku pēhanga ā-roto mō ngā tāke rokiroki ethylene katoa kia taea ai te kite tere i te turuturu me te ngaru pēhanga, hei tautoko i te haumaru kawe wai ethylene me te pono o te whāngai tauhohenga. Mā te whakamatao me te wehenga hau-wāhanga ka whakarite kia eke te kukū propylene ki waenga i te 35–70%, ka whakarato i ngā āhuatanga tino pai mō ngā tauhohenga copolymerization. Ka whakawhitihia, ka rongoatia hoki ngā matū rapa ethylene-propylene kua oti i te 0.8–1.1 MPa, me te aroturuki tonu hei ārai i ngā mōrearea mimiti me te pupuri i te pono o ngā rauemi mō ngā ahumahi rapa ethylene-propylene.
Ngā Wero i roto i te Ine Pēhanga ā-Rāina
Ka tūpono ngā pūnaha tuku pēhanga wai ipurangi i roto i ngā tāke rokiroki pakitara-rua, he ārai korehau ki ngā huringa pēhanga tere. Neke atu i te 25 pae/min te pikinga o ngā pikinga i puta mai i te mimiti i roto i ngā huihuinga ohorere, e hiahia ana ki ngā tuku me ngā wā urupare mirihekona. Ko te haumaru o te tāke rokiroki ethylene e whakawhirinaki ana ki te ine ā-roto 24/7, nā te mea ka taea e te ngaronga o te whakamarumaru, te pānga rānei ki ngā pūtake wera te arahi ki te pēhanga nui rawa i roto i ngā meneti. Ko ngā hau rewa me te propylene tauhohe i roto i ngā tono rapa ethylene-propylene ka puta he kore pumau, tae atu ki ngā pupuhi pūoko tae atu ki te ±1% tauine katoa, e uaua ai te whakahaere tukanga. Ka pāngia ngā tuku pēhanga ahumahi e te ārai tukanga, te wiri, me te hauhautanga, e whakaiti ana i te tika o te pūoko mā te 0.5% neke atu rānei, ā, ka whakaiti i te roa o te ora. Ko te tāutanga tuku pēhanga i roto i ngā ahumahi rapa ethylene-propylene e hiahia ana ki ngā waea pakari me ngā whare ātete-huarere, nā te mea he maha ngā pāmahana taiao e neke ake ana i te 45°C, ā, ka eke ngā taumata wiri ki te 5 karamu. Ko ngā tikanga haumaru kawe wai ethylene e hiahia ana ki te urupare tere mai i ngā tuku pēhanga ipurangi ki ngā hononga haumaru, nā te mea ka taea e ngā turuturu me te pēhanga nui i roto i ngā raina whakawhiti te hanga ranunga pahū i roto i ngā hēkona.
Ngā Painga o te Whakauru i ngā Tuku Pēhanga Ā-roto
Mā ngā pānui pēhanga wā-tūturu mai i te tuku pēhanga ipurangi mō ngā wai ka taea te whakahaere tere i te wā e whakakotahi ana i te rapa ethylene-propylene. Mā ngā inenga ā-roto ka whakaitihia te mōrearea o ngā tauhohenga rere i roto i ngā tauhohenga kei roto te wai ethylene me te propylene kua kōpeketia, ka whakahekehia ngā kati kore i whakaritea tae atu ki te 32% (ICIS, 2024).
Mā te tere o te kimi turuturu me te pēhanga nui i roto i ngā tāke rokiroki wai ethylene me ngā paipa tukatuka ka poto ake ngā wā urupare. Mā te urupare tika a te pūoko ka tīmata ngā raka haumaru i mua i te taenga ki ngā rohe morearea, he mea nui mō te haumaru o te tāke rokiroki ethylene. E whakaatu ana ngā rangahau ko te wawaotanga tere ka ārai i te 60% o ngā aituā tukunga pea (Process Safety Progress, 2025).
Ka tutuki te whakahaere tukanga aunoa mā te whakamahi i ngā tuku pēhanga ahumahi i ngā wāhi nui. Ka whakaitihia e ēnei te wawaotanga a te kaiwhakahaere, ā, ka taea te aunoatanga katoa o ngā tukanga i roto i ngā ahumahi rapa ethylene-propylene. E ai ki ngā wheketere he 17% te hekenga o te auau whakatikatika ā-ringa me te whakatinanatanga tika o te pūoko (Chem. Eng. J., 2024).
Mā ngā raraunga pēhanga tika ka whakaitihia te ngaronga o te wai ethylene i te wā e wehea ana, e whakawhitihia ana, e rongoatia ana hoki. Ka whakanuia e ngā tipu te hua rauemi mā te 4–8%, ka tino whakaitihia ngā utu whakahaere.
Mā te tāutanga o te tuku pēhanga e tutuki ana i ngā paepae haumaru matua ka mau tonu te tutuki i ngā paerewa a te kāwanatanga mō ngā mahi paitini me ngā mahi mura. Mā tēnei ka hangaia he rekoata pakari mō ngā arotake e kapi ana i ngā tono rapa ethylene-propylene katoa me te haumaru kawe wai ethylene.
Tonoa he Whakatau
Ka tukuna e Lonnmeter he tuku pēhanga ipurangi kua whakamātauhia mō ngā wai, i hangaia mō ngā tono uaua o te rapa ethylene-propylene. Ka tukuna e ngā tohunga Lonnmeter he tautoko hangarau mō te kōwhiringa tuku pēhanga wai ipurangi, i whakaritea mō ngā āhuatanga tukanga uaua me ngā pāpāho wai tino parakore. Whakapā mai mō ngā otinga ngaio.
Wā tuku: Hanuere-21-2026
