Preparation of Highly Active Monometallic Rhenium Catalysts for Selective Synthesis of 1,4‐Butanediol from 1,4‐Anhydroerythritol
作者:Tianmiao Wang、Masazumi Tamura、Yoshinao Nakagawa、Keiichi Tomishige
DOI:10.1002/cssc.201900900
日期:2019.8.8
ReOx/CeO2+ReOx/C is similar to that over ReOx–Au/CeO2+ReOx/C: deoxydehydration (DODH) of 1,4‐anhydroerythritol to 2,5‐dihydrofuran over ReOx species on the CeO2 support with the promotion of H2 activation by ReOx/C, isomerization of 2,5‐dihydrofuran to 2,3‐dihydrofuran catalyzed by ReOx on the C support, hydration of 2,3‐dihydrofuran catalyzed by C, and hydrogenation to 1,4‐butanediol catalyzed by ReOx/C. The
通过单金属混合催化剂(ReO x / CeO 2 + ReO x / C)与H 2的一锅还原,可以由1,4-脱水赤藓糖醇生产1,4-丁二醇。1,4-丁二醇的最高收率超过80%,这与在ReO x –Au / CeO 2 + ReO x / C催化剂上获得的值相似。CeO 2 + ReO x / C的混合催化剂表现出几乎相同的性能,得到89%的1,4-丁二醇。可能的中间体的反应趋势表明,ReO x / CeO 2 + ReO x / C的反应机理与ReO x / CeO 2 + ReO x / C相似x –Au / CeO 2 + ReO x / C:通过CeO 2载体上的ReO x物种将1,4-脱水赤藓糖醇脱氧脱水(DODH)成2,5-二氢呋喃,并通过ReO x / C促进H 2活化, ReO x在C载体上催化将2,5-二氢呋喃异构化为2,3-二氢呋喃,C催化2,3-二氢呋喃水合,ReO x