Ụlọ nnukwu ụlọ ọrụ mmepụta ihe nke calcium carbide PVC na-akwalite atụmatụ mmepe nke akụ na ụba okirikiri, na-amụba ma na-ewusi usoro mmepụta ihe na calcium carbide PVC dị ka isi, na-agbalịsi ike ịmepụta nnukwu ụlọ ọrụ mmepụta ihe na-ejikọta "coal-electricity- salt" Ka ọ dị ugbu a, isi mmalite nke ngwaahịa vinyl vinyl na China na-etolite n'ụzọ dịgasị iche iche, bụ nke meghekwara ụzọ ọhụrụ maka ịzụrụ ihe eji eme ihe maka ụlọ ọrụ PVC.Coal-to-olefins nke ụlọ, methanol-to-olefins, ethane-to-ethylene na usoro ọgbara ọhụrụ ndị ọzọ emeela ka ntinye nke ethylene dịkwuo ụba.
