Abstract: With the successful commercialization of the world's first coal olefin project, Shenhua Baotou coal chemical project, a number of coal olefin plants have been put into operation in China in recent years. The rise of coal olefins has brought new vitality to the polyolefin market, and the rapid development of China's plastic market has gradually formed the three-pronged situation of China's polyolefin supply, Sinopec and coal olefins. From the point of view of product profits, although the market price of olefins produced by oil is generally higher, due to the constraints of cost factors, especially under the influence of high international oil prices in recent years, the overall profit of olefins produced by oil is lower than that of coal olefins. With the gradual growth of coal olefins, it has slowly occupied the market for common materials. Coupled with the impact of imported materials on the high-end market, the domestic polyolefin market will eventually show an excess situation in the near future. Issues such as cost, environmental protection, high-end product technology research, and energy supply are also the main battlefields for oil olefins and coal olefins. The economic benefits of products and the breakthrough bottleneck of coal olefins are also the keys to winning the market.

Key words: olefins produced by oil, coal olefins, polyethylen, polypropylene, economic benefits, bottlenecks

摘要： 随着世界首套煤制烯烃项目神华包头煤化工项目的成功商业化运行，近年来国内陆续有多家煤制烯烃工厂投产运行。煤制烯烃的大量兴起给聚烯烃市场带来了新的活力，同时中国塑料市场的飞速发展使我国的聚烯烃供给逐渐形成了中国石油天然气集团公司、中国石化集团公司和煤制烯烃的三足鼎立的局面。本文指出从产品利润来看，虽然油制烯烃的市场价格普遍较高，但受成本因素的制约，特别是近些年来国际油价居高不下的影响下，油制烯烃整体利润比煤制烯烃低。随着煤制烯烃的逐步成长，其已慢慢占领通用料市场，再加上进口料对高端市场的冲击，国内聚烯烃市场在不久的将来终会呈现过剩的局面。成本、环保、高端产品技术研究和能源供应等问题也是油制烯烃和煤制烯烃角逐的主战场，产品的经济效益，煤制烯烃的突破瓶颈将是赢得市场的关键。

关键词: 油制烯烃, 煤制烯烃, 聚乙烯, 聚丙烯, 经济效益, 瓶颈