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石油化工是化学工业的重要组成部分,它为农业、能源、交通、机械、电子、纺织、轻工、建筑、建材等工农业和人民日常生活提供配套和服务,在国民经济中占有举足轻重的地位,是我国的支柱产业之一.乙烯作为石油化工的龙头,是世界上产量最大的化工原料之一,主要用于生产高相对分子质量的聚乙烯及其衍生物和低相对分子质量的线性α–烯烃(C4及C4以上直链端烯烃)等.聚乙烯可分为低密度聚乙烯、线性低密度聚乙烯、高密度聚乙烯和超高相对分子质量聚乙烯四大类,是人
Petrochemical industry is an important part of the chemical industry. It provides support and services to agriculture, energy, transportation, machinery, electronics, textiles, light industry, construction, building materials and other industries, agriculture and people’s daily life and plays a decisive role in the national economy , Is one of the pillar industries in China.As the leader of petrochemical industry, ethylene is one of the largest chemical raw materials in the world and is mainly used for producing high relative molecular weight polyethylene and its derivatives and low relative molecular mass linear α - olefins (C4 and C4 straight-chain end olefins), etc. Polyethylene can be divided into four categories: low-density polyethylene, linear low-density polyethylene, high-density polyethylene and ultra-high molecular weight polyethylene,