Ethylene is one of the world's largest chemical products, petroleum chemical industry is the core of ethylene petrochemical products, products accounted for more than 70%, occupy the important position in national economy, the scale of production and level has become a measure of a country petro-chemical development level of one of the important symbols.

National Industrial Research Institute report points out, 2011, our country ethylene production capacity of 15310000 tons / year, year-on-year growth of 1.3%; output 15167000 tons, grow 6.9% compared to the same period; net imports of 1060400 tons, grow 34.4% compared to the same period; the apparent consumption of 16217000 tons, grow 8.3% compared to the same period, the ethylene yield and apparent consumption growth.

At present the domestic ethylene consumption is mainly embodied in the downstream derivatives, of which 60% for polyethylene production. In the consumption statistics using equivalent consumption to evaluate the ethylene demand, 2011 our country consumption is about 30000000 tons equivalent of ethylene, ethylene equivalent consumption self-sufficiency rate of about 53%, there is a big gap of supply.

PetroChina Jilin Academy Guo Zhenji to write civil point out, as a result of our country building materials, household appliances, the rapid development of automobile industry, 2012 on polyethylene, styrene, synthetic rubber, ethylene derivatives demand will still continue to maintain rapidder growth, thereby driving the ethylene market demand increase. Expected full-year 2012 domestic ethylene equivalent demand is 31120000 tons, relatively grew 3.7% 2011, achieve 38000000 tons to 2015. The next few years China vinyl monomers can basically achieve self-sufficiency, and the equivalent gap is still large consumption of ethylene, ethylene industry in China still has certain development potential.