一、前言由于乙烯生产产量大,用途甚广,在石油化学工业中占有特殊重要的地位。因此,世界上一般用它的产量衡量一个国家石油化学工业发展的水平。近十年来,我国先后从国外引进了六套乙烯生产装置,但由于重大事故的相继发生,严重地威胁着生产,某化工厂高压聚乙 First, the preface Due to the large ethylene production output, a wide range of uses, occupies a special important position in the petrochemical industry. Therefore, the world generally uses its output to measure the development level of a country’s petrochemical industry. In the past ten years, China has introduced six sets of ethylene production equipment from abroad. However, serious accidents have seriously threatened the production and the high pressure Polyethylene