Gabatarwa game da Ƙarfin PVC a China da Duniya

A bisa kididdigar da aka yi a shekarar 2020, jimillar karfin samar da PVC a duniya ya kai tan miliyan 62 kuma jimillar yawan samar da PVC ya kai tan miliyan 54. Duk raguwar da aka samu a yawan samar da PVC yana nufin cewa karfin samar da PVC bai kai kashi 100% ba, saboda bala'o'in yanayi, manufofin gida da sauran dalilai, dole ne yawan samar da PVC ya yi kasa da karfin samar da shi. Saboda yawan kudin samar da PVC a Turai da Japan, karfin samar da PVC a duniya ya fi yawa a Arewa maso Gabashin Asiya, wanda kasar Sin ke da kusan rabin karfin samar da PVC a duniya.

A cewar bayanan iska, a shekarar 2020, China, Amurka da Japan suna da muhimmanci a fannin samar da PVC a duniya, inda karfin samarwa ya kai kashi 42%, 12% da 4% bi da bi. A shekarar 2020, manyan kamfanoni uku a fannin samar da PVC a duniya a duk shekara sune Westlake, shintech da FPC. A shekarar 2020, karfin samar da PVC a duk shekara ya kai tan miliyan 3.44, tan miliyan 3.24 da tan miliyan 3.299 bi da bi. Na biyu, kamfanonin da karfin samar da PVC ya kai tan miliyan 2 suma sun hada da inovyn. Jimillar karfin samar da PVC a China ya kai tan miliyan 25, tare da fitar da tan miliyan 21 a shekarar 2020. Akwai masana'antun PVC sama da 70 a kasar Sin, kashi 80% daga cikinsu hanyar calcium carbide ce kuma kashi 20% hanyar ethylene ce.

Yawancin hanyoyin samar da sinadarin calcium carbide suna da yawa a wurare masu arzikin albarkatun kwal kamar Inner Mongolia da Xinjiang. Wurin da ake samar da sinadarin ethylene yana cikin yankunan bakin teku ne saboda ana buƙatar shigo da kayan da aka samar da VCM ko ethylene. Ƙarfin samar da kayayyaki na China ya kai kusan rabin duniya, kuma tare da ci gaba da faɗaɗa sarkar masana'antu ta China, ƙarfin samar da PVC na hanyar ethylene zai ci gaba da ƙaruwa, kuma China za ta ci gaba da lalata rabon PVC na duniya.