Ko te Monoethylene Glycol (MEG), me te nama Ratonga Whakarāpopoto Matū (CAS) 2219-51-4, he matū ahumahi nui e whakamahia whānuitia ana i roto i te hanga muka polyester, kapia polyethylene terephthalate (PET), ngā hanganga ārai huka, me ētahi atu matū motuhake. Hei rauemi mata matua i roto i ngā ahumahi maha, he mahi nui tā te MEG i roto i ngā mekameka tuku o te ao. Kua pāngia te mākete mō te MEG e ngā panonitanga nui i ngā tau tata nei nā te hurihanga o ngā tauira tono, ngā hihiri rauemi whāngai, me ngā whenua ture e whanake haere ana. Ka tūhuratia e tēnei tuhinga te āhua o te mākete o nāianei me ngā au o muri mai e hanga ana i te ahumahi MEG.
Te Āhuatanga o te Mākete o Nāianei
1. Te Piki Ake o te Hiahia mai i ngā Ahumahi Polyester me te PET**
Ko te whakamahinga nui rawa atu o te MEG ko te hanga muka polyester me ngā kapia PET, e whakamahia whānuitia ana i roto i ngā kakahu, ngā takai, me ngā pounamu inu. I te pikinga ake o te kai o ngā taonga kua takaihia me ngā papanga hangai, inā koa i roto i ngā ōhanga e tipu haere ana, kei te kaha tonu te tono mō te MEG. Ko te rohe o Āhia-Moana-nui-a-Kiwa, ko Haina me Īnia te kaiārahi, kei te kaha tonu te kai nā te tere o te ahumahi me te noho tāone.
Hei tāpiri, kua piki ake te whakamahinga o te PET hangarua (rPET) nā te nekehanga ki ngā otinga tākai tauwhiro, ā, kua tautoko ā-kore i te tono mō te MEG. Heoi anō, kei te pāngia te umanga e ngā wero mai i te piki me te heke o ngā utu hinu mata, nā te mea ko te MEG te nuinga o te wā i ahu mai i te ethylene, he rauemi whāngai kei runga i te hinu.
2. Ngā Whakamahinga mō te Ārai Huka me te Whakamatao
He wāhanga matua te MEG i roto i ngā hanganga ārai huka me te whakamatao, inā koa i roto i ngā pūnaha motuka me te HVAC. Ahakoa kei te pumau tonu te tono mai i tēnei rāngai, he whai wāhitanga me ngā wero te pikinga ake o ngā waka hiko (EV). Me whakamahi te ārai huka i runga i te MEG mō ngā waka miihini mura ā-roto tuku iho, engari he rerekē ngā hangarau whakamatao e whakamahia ana e ngā EV, ka rerekē pea te hihiri o te tono mō te wā roa.
3. Ngā Whanaketanga o te Mekameka Tuku me te Whakaputa
Ko te hanga MEG o te ao e aro nui ana ki ngā rohe he nui ngā taonga ethylene, pērā i te Middle East, Amerika Te Raki, me Āhia. Nā ngā whanaketanga tata nei o te kaha ethylene, inā koa i te US me Haina, kua pai ake te wātea o te MEG. Heoi anō, kei te pā tonu ngā raruraru whakahaere, ngā taupatupatu whenua, me te pikinga o te utu pūngao ki te pumau o te tuku.
Kei te awe hoki ngā ture taiao i ngā tikanga whakaputa. Kei te piki haere te tūhuratanga a ngā kaihanga i te MEG koiora i ahu mai i te tō, i te kānga rānei, hei huarahi tauwhiro ki te MEG hinu. Ahakoa he iti noa te wāhi mākete o te bio-MEG i tēnei wā, e matapaetia ana ka piki ake te whakamahinga i te mea ko te whakaiti i te tapuwae waro te kaupapa matua a ngā ahumahi.
Ngā Auahatanga o te Mākete ā-Mārama
1. Ngā Kaupapa Whakapūmau me te Ōhanga Porowhita
Kei te huri te mākete MEG i te kaupapa mō te oranga tonutanga. Kei raro i te pēhanga ngā kaiwhakamahi matua, inā koa i roto i ngā umanga takai me ngā kakahu, ki te tango i ngā rauemi e pai ana ki te taiao. Nā tēnei kua piki ake ngā haumitanga ki ngā hangarau MEG e ahu mai ana i te koiora me te hangarua matū e huri ana i ngā para PET ki te MEG me te waikawa terephthalic parakore (PTA).
Kei te whakatinanahia e ngā kāwanatanga me ngā whakahaere ture he kaupapa here pakari ake mō ngā para kirihou, ā, kei te akiaki ake i te hiahia mō ngā rauemi hangarua me ngā rauemi pirau. Ko ngā kamupene e taea te hono atu ki ēnei whāinga oranga tonutanga, tera pea ka whiwhi i tētahi painga whakataetae i ngā tau e haere ake nei.
2. Ngā Whakatairanga Hangarau i roto i te Whakaputa
E tūmanakohia ana ka whakarei ake te auahatanga i roto i ngā tukanga whakaputa MEG i te whai huatanga me te whakaiti i te pānga ki te taiao. Kei te whakawhanakehia ngā hangarau whakaterenga e whakaiti ana i te whakapaunga pūngao me ngā tukunga. Hei tāpiri, mā ngā whanaketanga i roto i te hopu me te whakamahinga waro (CCU) ka taea te whakapūmau ake i te whakaputanga MEG e ahu mai ana i ngā pūmua.
Ko tētahi atu ia o ngā āhuatanga hou ko te whakaurunga o ngā hangarau matihiko pēnei i te AI me te IoT ki ngā whare hanga hei whakapai ake i ngā hua whakaputa me te whakaiti i te wā kore mahi. Mā ēnei auahatanga ka hua ake he mahi hanga MEG whai hua, he mahi matomato hoki i te wā roa.
3. Ngā Huringa o te Hiahia ā-Rohe me ngā Rere Tauhokohoko
Ko Āhia-Moana-nui-a-Kiwa tonu te kaihoko nui rawa atu o te MEG, nā te whānui haere o ngā ahumahi kakahu me te tākai. Heoi anō, kei te puta ake a Āwherika me te Tonga-mā-rāwhiti o Āhia hei mākete tipu hou nā te pikinga ake o te ahumahi me te noho tāone.
Kei te whanake haere hoki ngā mahi tauhokohoko. Ahakoa kei te noho tonu te Middle East hei kaihokohoko nui nā te iti o te utu o te ethylene, kei te whakapakari ake a Amerika Te Raki i tōna tūranga me te ethylene i ahu mai i te hau shale. I taua wā, kei te arotahi a Ūropi ki te MEG e ahu mai ana i te koiora me te hangarua hei whakatutuki i ana whāinga pumau, me te whakaiti pea i te whakawhirinaki ki ngā kawemai.
4. Te Pānga o ngā Waka Hiko me ngā Hangarau Rerekē
Tērā pea ka whakaitihia te tono mō te ārai huka tuku iho mā te nekehanga o te rāngai motuka ki ngā EV, engari tera pea ka ara ake ngā whai wāhitanga hou i roto i ngā pūnaha whakahaere wera pākahiko. Kei te haere tonu ngā rangahau hei whakatau mēnā ko ngā MEG, ko ngā whakamatao rerekē rānei ka pai ake i roto i ngā EV o te whakatipuranga e whai ake nei.
Hei tāpiri atu ki tēnā, ko te whakawhanaketanga o ngā rauemi rerekē, pērā i ngā kirihou pirau-koiora, ka taea te whakataetae, te tautoko rānei i ngā hua e ahu mai ana i te MEG. Me aroturuki ngā kaipupuri pānga ahumahi i ēnei au kia taea ai te whakarerekē i ā rātou rautaki.
Kei te rerekē haere te mākete Monoethylene Glycol (MEG) o te ao nā te hurihanga o ngā tauira tono, ngā pēhanga pumau, me ngā whanaketanga hangarau. Ahakoa kei te kaha tonu ngā whakamahinga tuku iho o te polyester me te antifreeze, me urutau te umanga ki ngā au hou pēnei i te whakaputanga koiora, ngā tauira ōhanga porowhita, me ngā nekehanga ā-rohe. Ko ngā kamupene e haumi ana ki ngā mahi pumau me ngā hangarau auaha ka pai te tūnga ki te tupu i roto i te whenua MEG e whanake haere ana.
I te anga whakamua o te ao ki ngā otinga matomato, ka whakawhirinaki te tūranga o MEG i roto i te ōhanga iti-waro ki te whai huatanga o te taurite o te umanga i te utu, te mahi, me te pānga ki te taiao. Me mahi tahi ngā kaipupuri hea puta noa i te mekameka uara kia whakarite i te tipu me te manawanui mō te wā roa i roto i tēnei mākete matū nui.
Wā tuku: 22 o Ākuhata-2025