从统计的苯乙烯产能分布数据来看,江、浙、沪及山东一直占据着主导地位,而从近几年拟建投产的项目来看,此格局将会延续。回顾多年以来我国苯乙烯的发展历程,产能及产量均是一个稳步提升的趋势,截止2016年6月底,我国苯乙烯年生产能力已突破800万吨(包括二季度投产的常州新日及宁波大榭石化)。从产量看,尤其是2011年首次突破400万吨后,2013-2015年均保持在500万吨以上水平。近几年我国苯乙烯的进口量基本平稳,除2012年进口略降外,其余时间则围绕370万吨上下。2005年我国苯乙烯自给率仅在30%左右,随后 Statistics from the styrene production capacity distribution data, Jiangsu, Zhejiang, Shanghai and Shandong has dominated, and from the project proposed to put into operation in recent years, this pattern will continue. Reviewing the history of styrene production in China for many years, both capacity and output have shown a steady upward trend. As of the end of June 2016, the annual styrene production capacity in China has exceeded 8 million tons (including Changzhou Xinri and Ningbo Large Pavilions). In terms of output, especially after surpassing 4 million tons for the first time in 2011, it maintained at above 5 million tons in 2013-2015. In recent years, China’s imports of styrene basically stable, except for slightly lower imports in 2012, the rest of the time around 3.7 million tons. China’s self-sufficiency rate of styrene in 2005 was only about 30%, then