Methanol synthesis in a high-pressure membrane reactor with liquid sweep
Methanol synthesis in a high-pressure membrane reactor with liquid sweep
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DOI：
10.1016/j.memsci.2018.09.071
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发表时间：
2019-01-15
影响因子：
9.5
通讯作者：
Tsotsis, Theodore T.
中科院分区：
文献类型：
--
作者：
Li, Zhongtang;Tsotsis, Theodore T.
膜反应器（MR）以其提高化学反应的选择性和产率的能力而闻名。本文将一种新型的高压磁流变液用于甲醇合成反应，旨在提高单程转化率。为了进行该反应，用甲硅烷基化剂对不对称陶瓷膜进行改性，以使其孔表面疏水。将商业MeS催化剂用于反应，负载在MR壳程中，而管程用对甲醇具有高溶解度的高沸点有机溶剂吹扫。膜反应器进行了研究，在各种实验条件下（不同的压力，温度，空间时间，和液体吹扫流速），并显示出改进的碳转化率相比，在相同的条件下操作的常规填充床反应器。
Membrane reactors (MR) are known for their ability to improve the selectivity and yield of chemical reactions. In this paper, a novel high-pressure MR employing a liquid sweep was applied to the methanol synthesis (MeS) reaction, aiming to increase the per single-pass conversion. For carrying-out the reaction, an asymmetric ceramic membrane was modified with a silylating agent in order to render its pore surface hydrophobic. A commercial MeS catalyst was used for the reaction, loaded in the MR shell-side, while the tube-side was swept with a high boiling point organic solvent with high solubility towards methanol. The membrane reactor was studied under a variety of experimental conditions (different pressures, temperatures, space times, and liquid sweep flow rates) and showed improved carbon conversion when compared to the conventional packed-bed reactor operating under the same conditions.