Since 2012, the domestic polypropylene production capacity growth faster, the average growth rate of 13.86% .In 2014 is the peak year, the production capacity increased by nearly 3.4 million tons, the capacity growth rate reached 25.18% .Because the new device is running Stable, put into production and other reasons, resulting in the start of the 2014 level is relatively low .2014 polypropylene plant launched, but also makes the 2015-2016 annual capacity growth has slowed, but the overall capacity is still close in 2016 20 million tons.
And production capacity growth trend consistent with the domestic polypropylene production since 2012 the same continuous growth.But due to the release of polypropylene production capacity concentrated in the western coal chemical industry-based, and production time is more concentrated, so the product homogenization of competition is still more serious, Resulting in the operating rate in 2014 fell to 82% of the relatively low, making the 2014 annual output increase of only about 1.3 million tons, as capacity growth is obvious. 2015-2016, although the overall operating rate has signs of warming, but the overall capacity The larger the actual situation can not change, will still affect the operating rate of 2017 domestic polypropylene production capacity of 3.58 million tons / year, the total domestic production capacity of 23.47 million tons / year, year-on-year 2016 years 1989 tons / year An increase of about 18% .With the concentration of polypropylene expansion increased, 2017 domestic production in 19 million tons, an increase of 139.13 million tons, an increase of 7.9%.
As the process of polypropylene expansion to speed up and enhance the production technology to enhance the domestic supply of special materials more and more, the import of transparent materials, special material dependence decreased significantly.With the decline in imports decreased year by year, import dependence decline significantly this year Import dependence as low as 12.52%, compared with 20.87% in 2012 fell 8.35%.
At present, the domestic self-sufficiency rate of polypropylene varieties is as high as 74% ~ 86%, and the monthly months can reach more than 90% .According to September, homopolymerization rate is about 84.51%, up by 4.38%; block self- , Compared with last year's growth of 5.28%, other copolymer self-sufficiency rate of 87% in the same period last year is about 86% .After the polypropylene self-sufficiency rate gradually increased, the domestic fundamentals of polypropylene changes in the impact of the market has increased In particular, the impact of maintenance or restart of the plant.