1.前言近年来国内氯碱行业迅猛发展,烧碱和聚氯乙烯产能不断增加,截止2012年底国内烧碱和聚氯乙烯产能分别达到3736万吨/年和2341万吨/年(含糊树脂),随着产能逐年快速增长、产业结构简单低水平复制扩张,我国氯碱/聚氯乙烯产能过剩已成不争事实。带来了氯气严重滞销,行业平均开工率严重不足、行业整体经济效益持续下滑的窘境,2013年上半年在国内氯碱装置产能持续增加、装置利用效率难以提高的背景下,产品在国内外市 1. Introduction In recent years, the rapid development of the domestic chlor-alkali industry, caustic soda and polyvinyl chloride production capacity continues to increase by the end of 2012 domestic caustic soda and polyvinyl chloride production reached 37.36 million tons / year and 23.41 million tons / year (paste resin), with Rapid growth in production capacity year by year, the simple low-level industrial structure of the expansion of replication, China’s chlor-alkali / PVC excess capacity has become an indisputable fact. Resulting in serious unsalable chlorine, the industry average operating rate of serious shortage of the industry as a whole economic downturn dilemma in the first half of 2013 in the domestic production capacity of chlor-alkali devices continued to increase, the device is difficult to improve the efficiency of the context of the product in the domestic and foreign markets