一步法甲醇制汽油工艺的研究

One-step technology of methanol to gasoline

利用100 mL等温固定床实验装置,以改性ZSM-5分子筛为催化剂,研究了反应温度、系统压力、进料空速等工艺条件对一步法甲醇制汽油反应性能的影响,并考察了甲醇转化率、产物分布和产品组成随反应时间的变化规律.结果表明,在反应温度为360～ 420C,系统压力为1.0～2.0 MPa,甲醇进料空速为1.0～1.5 h-1的条件下,甲醇可完全转化,汽油收率为35％～37％,汽油辛烷值达到93,同时生成4％～6％的具有较高附加值的液化气.

The reactive properties of modified ZSM-5 catalyst for methanol to gasoline are investigated under different reaction temperature, pressure and WHSV by using 100 mL experimental isothermal fixed-bed. The effects of reaction time on methanol conversion and product distribution are also been determined. It can conclude that under conditions of 360 - 420℃, 1.0 - 2. 0 MPa and 1.0 - 1.5 h - 1 WHSV of methanol, methanol is converted completely. The yield of gasoline with RON 93 and the yield of LPG are 35% -37% and 4% -6%.