在反应器体积为200ml的扩大试验装置上,以颗粒度φ2×4mm的改质高硅沸石为催化剂,对甲醇转化为低碳烯烃的反应进行了系统的工艺参数影响考察。认为采用较高反应温度和较低操作压力以及以水为稀释剂有利于低碳烯烃的生成。在550℃,WHSV(MeOH)1.5h~(-1)及常压的条件下,催化剂连续运转累计810小时以上,取得了C_2—C_4低碳烯烃和乙烯收率分别为88.6和31.9%的结果。 In the expansion test device with a reactor volume of 200ml, the effect of systematic process parameters on the reaction of methanol to light olefins was investigated by using the modified high-silica zeolite with a particle size of φ2 × 4mm as a catalyst. It is believed that the use of higher reaction temperatures and lower operating pressures and the use of water as a diluent favor the formation of light olefins. Under the conditions of 550 ℃, WHSV (MeOH) 1.5h ~ (-1) and atmospheric pressure, the catalyst was continuously operated for more than 810 hours, and the results showed that the C 2 -C 4 light olefins and ethylene yields were 88.6% and 31.9%, respectively .