Ngokwezibalo zango-2020, umthamo wokukhiqiza we-PVC womhlaba wonke ufinyelele kumathani ayizigidi ezingama-62 kanti umkhiqizo uphelele ufinyelele amathani ayizigidi ezingama-54. Konke ukwehla komkhiqizo kusho ukuthi umthamo wokukhiqiza awuzange usebenze ngo-100%. Ngenxa yezinhlekelele zemvelo, izinqubomgomo zendawo nezinye izici, umkhiqizo kumele ube ngaphansi komthamo wokukhiqiza. Ngenxa yezindleko zokukhiqiza eziphezulu ze-PVC eYurophu naseJapan, umthamo wokukhiqiza we-PVC womhlaba wonke ugxile kakhulu eNyakatho-mpumalanga ye-Asia, lapho iShayina inengxenye yamandla okukhiqiza we-PVC womhlaba wonke.
Ngokusho kwedatha yomoya, ngo-2020, iShayina, i-United States kanye neJapan ziyizindawo ezibalulekile zokukhiqiza i-PVC emhlabeni, lapho amandla okukhiqiza ebalelwa ku-42%, 12% kanye no-4% ngokulandelana. Ngo-2020, amabhizinisi amathathu aphezulu emkhiqizweni wokukhiqiza we-PVC womhlaba wonke kwakuyiWestlake, i-shintech kanye ne-FPC. Ngo-2020, amandla okukhiqiza we-PVC wonyaka ayengamathani ayizigidi ezingu-3.44, amathani ayizigidi ezingu-3.24 kanye namathani ayizigidi ezingu-3.299 ngokulandelana. Okwesibili, amabhizinisi anamandla okukhiqiza angaphezu kwamathani ayizigidi ezimbili nawo afaka i-inovyn. Amandla okukhiqiza aseShayina angamathani ayizigidi ezingu-25, anomkhiqizo wamathani ayizigidi ezingu-21 ngo-2020. Kunabakhiqizi be-PVC abangaphezu kuka-70 eShayina, abangama-80% babo abayindlela ye-calcium carbide kanti abangama-20% bayindlela ye-ethylene.
Iningi lendlela ye-calcium carbide ligxile ezindaweni ezicebile ngemithombo yamalahle njenge-Inner Mongolia kanye ne-Xinjiang. Indawo yesitshalo senqubo ye-ethylene itholakala ezindaweni ezisogwini ngoba i-VCM noma i-ethylene kudingeka ingeniswe. Amandla okukhiqiza aseShayina acishe abe yingxenye yomhlaba, futhi ngokwandiswa okuqhubekayo kochungechunge lwezimboni lwaseShayina oluphezulu, amandla okukhiqiza e-PVC endlela ye-ethylene azoqhubeka nokukhula, kanti iShayina izoqhubeka nokunciphisa isabelo se-PVC samazwe ngamazwe.
Isikhathi sokuthunyelwe: Meyi-07-2022