Ngokwezibalo ngo-2020, umthamo wemveliso wePVC wehlabathi ufikelele kwi-62 yezigidi zeetoni kwaye imveliso iyonke yafikelela kwi-54 yezigidi zeetoni. Konke ukuncitshiswa kwemveliso kuthetha ukuba amandla okuvelisa azange aqhube i-100%. Ngenxa yeentlekele zendalo, imigaqo-nkqubo yendawo kunye nezinye izinto, imveliso kufuneka ibe ngaphantsi komthamo wemveliso. Ngenxa yexabiso eliphezulu lemveliso yePVC eYurophu naseJapan, umthamo wemveliso wePVC wehlabathi ugxile kakhulu kuMntla-mpuma weAsia, apho iTshayina inesiqingatha somthamo wemveliso wePVC yehlabathi.
Ngokutsho kwedatha yomoya, ngo-2020, i-China, i-United States kunye ne-Japan zibalulekile iindawo zokuvelisa i-PVC kwihlabathi, kunye nomthamo wemveliso obala i-42%, i-12% kunye ne-4% ngokulandelanayo. Ngo-2020, amashishini amathathu aphezulu kumthamo wemveliso wonyaka wePVC yehlabathi yayiyiWestlake, shintech kunye neFPC. Ngo-2020, umthamo wemveliso wonyaka wePVC wawuzizigidi ezi-3.44 zeetoni, iitoni ezizigidi ezi-3.24 kunye ne-3.299 yezigidi zeetoni ngokulandelelanayo. Okwesibini, amashishini anamandla okuvelisa iitoni ezingaphezu kwezigidi ezi-2 aquka i-inovyn. Umthamo wemveliso we-China ungenye ye-25 yezigidi zeetoni, kunye nemveliso ye-21 yezigidi zeetoni ngo-2020. Kukho ngaphezu kwe-70 abenzi bePVC e-China, i-80% yazo i-calcium carbide indlela kunye ne-20% yindlela ye-ethylene.
Uninzi lwendlela ye-calcium carbide igxininiswe kwiindawo ezityebileyo kwimithombo yamalahle njenge-Inner Mongolia kunye ne-Xinjiang. Indawo yesityalo senkqubo ye-ethylene ibekwe kwiindawo eziselunxwemeni kuba i-VCM ekrwada okanye i-ethylene kufuneka ingeniswe kumazwe angaphandle. Umthamo wemveliso waseTshayina uthatha phantse isiqingatha sehlabathi, kunye nokwandiswa okuqhubekayo kwekhonkco lemveliso yaseTshayina, imveliso yePVC yendlela ye-ethylene iya kuqhubeka ikhula, kwaye i-China iya kuqhubeka nokutshabalalisa isabelo se-PVC samazwe ngamazwe.
Ixesha lokuposa: May-07-2022