多管程离散型膜反应器

摘要

由于单管程膜反应器不足主要表现在工业放大应用较困难,因此将多管程离散型膜反应器在单管程膜反应器基础上进行了改进,结构上吸取了列管式换热器结构紧凑的优点,操作上借鉴了板式塔多级分离的特点,可以在同一设备内完成多次的反应和分离,使反应和分离更好地耦合,从而弥补了单管程膜反应器的不足.本研究以仲丁醇脱氨为反应体系,150～225℃温度范围内进行试验,最终混合物中甲乙酮摩尔分数高达94%,结果表明反应器结构合理可行.%Single-tube membrane reactor has such disadvantages as difficulty in industrial scale-up, and low efficiency of coupling of reaction and separation. Discrete multi-tube membrane reactor has a compact structure with a larger heat transmission area as in tubular heat exchanger and realizes multi-stage separation as in plate column. In a test of sec-butyl alcohol dehydrogenation system at 150～225 ℃, mole fraction of methyl ethyl ketone reached 94 ％.