Amabhizinisi asekhaya akhiqiza i-calcium carbide emikhulu ye-PVC akhuthaza ngamandla isu lokuthuthukiswa komnotho oyindilinga, akhulise futhi aqinise uchungechunge lwezimboni nge-calcium carbide PVC njengomnyombo, futhi alwela ukwakha iqoqo lezimboni elikhulu elihlanganisa "ugesi wamalahle-usawoti" . Okwamanje, imithombo yemikhiqizo ye-vinyl vinyl e-China ithuthuka ngendlela ehlukahlukene, okuphinde kwavula indlela entsha yokuthengwa kwezinto zokusetshenziswa zemboni ye-PVC. Amalahle e-Domestic-to-olefin, i-methanol-to-olefin, i-ethane-to-ethylene nezinye izinqubo zesimanje zenze ukuhlinzekwa kwe-ethylene kwanda kakhulu.
