渗透汽化型酯化膜反应器研究 聚合物/无机固体酸管式复合膜的膜反应性能

设计了渗透汽化型管式膜反应器，以乙酸丁酯合成反应为探针，考察了Ｚｒ（ＩＶ）／ＰＶＡ，Ｚｒ（ＩＶ）－ＰＶＡ／ＰＶＡ两类聚合物担载无机固体酸管式复合膜的膜催化反应性能。探讨了功能膜的组成，结构，反应条件等对膜反应和分离性能的影响以及同步膜分离过程对反应转化的促进作用。实验结果表明，膜催化酯化反应过程主要是依赖与料液接触侧膜表面层的催化活性，膜的催化活性是影响反应速率，特别是初期反应转化速率的主要因素，后期的超平衡转化则依赖于膜分离过程

Study on the Membrane Reactor Couple Pervaporation with Esterification the Tubular Composite Membrane of PVA Supported Inorganic Solid Acid

On the surface of porous inert porcelain filter cylinder, two kinds of the composite membranes of PVA supported Zr(SO4)24H2O, i.e. Zr(IV)/PVA and Zr(IV)-PVA/PVA functional membranes, were prepared. The tubular membranes were used to study the esterification of C4H9OH with CH3COOH in an assembmed tubular reactor. The effect of reaction conditions, membranes composition and structure, etc., on the catalytic and separative properties was extensively investigated. Catalytic property of the functional membrane surface is important factor for the catalytic conversion. Synchronous pervaporation procedure promotes the catalytic reaction under equilibrum state during the later period of the membrane reaction.