Petrochemical producers expect that the global petrochemical market demand will continue to recover in 2012. According to CMAI, global ethylene demand will increase by 3.9% to approximately 132 million tons in 2012, and will grow at an average annual rate of approximately 4.3% by 2016; meanwhile, global propylene demand will increase by 4% in 2012. About 83 million tons, by 2016, will grow at an average annual rate of about 4.4%. According to the company's analysis, the average operating rate of global petrochemical plants will remain at a median of 80% in 2012, but the operating rate will start to increase at the end of the year, but for high-cost producers, the level of profits will fall. To a cyclical low. CHANGZHOU ANTALYA TOOL AND MACHINERY CO., LTD. , https://www.atly-tool.com