Zvichienderana nehuwandu hwegore ra2020, huwandu hwese hwekugadzira PVC pasi rose hwakasvika matani mamiriyoni makumi matanhatu nemaviri uye huwandu hwese hwekugadzira hwakasvika matani mamiriyoni makumi mashanu nemana. Kudzikira kwese kwekugadzirwa kunoreva kuti huwandu hwekugadzira hahuna kusvika zana muzana. Nekuda kwenjodzi dzechisikigo, mitemo yemuno nezvimwe zvinhu, huwandu hwekugadzira hunofanira kunge huri pasi pehuwandu hwekugadzira. Nekuda kwemutengo wakakwira wekugadzira PVC muEurope neJapan, huwandu hwekugadzira PVC pasi rose hwakanyanya kuNortheast Asia, iyo China ine inenge hafu yehuwandu hwekugadzira PVC pasi rose.
Sekureva kwedata remhepo, muna 2020, China, United States neJapan inzvimbo dzakakosha dzekugadzira PVC pasi rose, nehukuru hwekugadzira hunosvika 42%, 12% uye 4% zvichiteerana. Muna 2020, makambani matatu epamusoro muhukuru hwekugadzira PVC pagore pasi rose aive Westlake, shintech neFPC. Muna 2020, hunhu hwekugadzira PVC pagore hwaive matani mamiriyoni 3.44, matani mamiriyoni 3.24 uye matani mamiriyoni 3.299 zvichiteerana. Chechipiri, makambani ane hunhu hwekugadzira hunopfuura matani mamiriyoni maviri anosanganisirawo inovyn. Hunhu hwese hwekugadzira hweChina humwe matani mamiriyoni makumi maviri nemashanu, nekugadzirwa kwematani mamiriyoni makumi maviri nerimwe muna 2020. Kune vagadziri vePVC vanopfuura makumi manomwe muChina, 80% yavo iri calcium carbide method uye 20% iri ethylene method.
Nzira zhinji dzekushandisa calcium carbide dzakanyanya kuwanikwa munzvimbo dzine marasha akawanda akadai seInner Mongolia neXinjiang. Nzvimbo yekudyara ethylene iri munzvimbo dziri kumahombekombe egungwa nekuti zvinhu zvekugadzira zveVCM kana ethylene zvinofanirwa kutengeswa kunze kwenyika. Kugona kweChina kugadzira zvinhu kunotora hafu yepasi rose, uye nekuwedzera kuri kuramba kuchiita indasitiri yeChina, kugona kwePVC kugadzira ethylene nzira kucharamba kuchiwedzera, uye China icharamba ichiparadza chikamu chePVC chepasi rose.
Nguva yekutumira: Chivabvu-07-2022