Wahi a nā helu helu i ka makahiki 2020, ua hōʻea ka nui o ka hana PVC honua i 62 miliona tone a ua hōʻea ka huina o ka hana i 54 miliona tone. ʻO ka emi ʻana o ka hana ʻana, ʻo ia hoʻi, ʻaʻole i holo pono ka nui o ka hana 100%. Ma muli o nā pōʻino kūlohelohe, nā kulekele kūloko a me nā kumu ʻē aʻe, pono e emi ka nui o ka hana ma mua o ka nui o ka hana. Ma muli o ke kumukūʻai kiʻekiʻe o ka hana ʻana o PVC ma ʻEulopa a me Iapana, ua kau nui ʻia ka nui o ka hana PVC honua ma ʻĀsia Hikina ʻĀkau, nona ka hapalua o Kina o ka nui o ka hana PVC honua.
Wahi a ka ʻikepili makani, i ka makahiki 2020, ʻo Kina, ʻAmelika Hui Pū ʻIa a me Iapana nā wahi hana PVC koʻikoʻi ma ka honua, me ka hiki ke hana no 42%, 12% a me 4%. I ka makahiki 2020, ʻo nā ʻoihana ʻekolu kiʻekiʻe loa ma ka mana hana makahiki PVC honua ʻo Westlake, shintech a me FPC. I ka makahiki 2020, ʻo ka mana hana makahiki PVC he 3.44 miliona tons, 3.24 miliona tons a me 3.299 miliona tons. ʻO ka lua, ʻo nā ʻoihana me ka mana hana ma mua o 2 miliona tons e komo pū ana me inovyn. ʻO ka huina o ka mana hana o Kina he 25 miliona tons, me ka hana he 21 miliona tons i ka makahiki 2020. Aia ma mua o 70 mau mea hana PVC ma Kina, 80% o ia mau mea he calcium carbide method a 20% he ethylene method.
ʻO ka hapa nui o ke ʻano hana calcium carbide e kau nui ʻia ma nā wahi waiwai i nā kumuwaiwai lanahu e like me Inner Mongolia a me Xinjiang. Aia kahi hana o ke kaʻina hana ethylene ma nā wahi kahakai no ka mea pono e lawe ʻia mai ka mea maka VCM a i ʻole ethylene. ʻO ka mana hana o Kina no ka hapalua o ka honua, a me ka hoʻonui mau ʻana o ke kaulahao ʻoihana o Kina, e hoʻomau ka hoʻonui ʻana o ka mana hana PVC o ke ʻano hana ethylene, a e hoʻomau ʻo Kina i ka hoʻopau ʻana i ka māhele PVC honua.
Ka manawa hoʻouna: Mei-07-2022