低碳烯烃(乙烯、丙烯等)是当今世界最重要的化工产品,是塑料、合成树脂、纤维、橡胶等大宗重要合成材料的基础原料。一直以来,生产乙烯、丙烯需要消耗大量石油。随着我国国民经济的发展,市场对乙烯、丙烯的需求更为旺盛,长期供不应求。国内自给率只有50%左右,需要进口大量的石油作为原料用于制取低碳烯烃。随着石油资源的日益枯竭以及油价的波 Light olefins (ethylene, propylene, etc.) are the most important chemical products in the world and are the basic raw materials for bulk synthetic materials such as plastics, synthetic resins, fibers and rubbers. All along, the production of ethylene, propylene need to consume a lot of oil. With the development of our country’s national economy, the demand for ethylene and propylene in the market is more vigorous, and the demand in the long run falls short of demand. Domestic self-sufficiency rate of only about 50%, the need to import large amounts of oil as a raw material for the preparation of light olefins. With the depletion of oil resources and the wave of oil prices