现阶段,乙烯、丙烯等基础有机原料仍来源于传统的催化裂解、蒸汽裂解等工艺生产;甲醇制烯烃工艺线路是以煤或天然气为原料制取甲醇进而制取乙烯、丙烯的新兴生产工艺。本文简述了甲醇制烯烃、催化裂化制烯烃的工艺流程,从反应条件、催化剂、原料与产品分布等方面对比分析甲醇制烯烃相对于催化裂解的优点。 At this stage, the basic organic raw materials such as ethylene and propylene still come from the traditional processes such as catalytic cracking and steam cracking. The methanol-to-olefins process line is an emerging production process of producing methanol from coal or natural gas and then producing ethylene and propylene. In this paper, the process of methanol-to-olefin and catalytic cracking of olefins was briefly described. The advantages of methanol-to-olefins over catalytic cracking were contrasted and analyzed from reaction conditions, catalysts, raw materials and product distribution.