乙醇催化转化到丁醇研究进展

乙醇的规模化生产和其在汽油中有限的添加量推动了乙醇的高值化利用。由于丁醇具有独特的物化性能，将乙醇一步催化转化为丁醇受到人们的普遍关注。本文主要综述了乙醇催化转化到丁醇的最新研究进展，阐述了不同均相催化剂、羟基磷灰石、氧化物和金属促进氧化物催化剂对乙醇转化率和丁醇选择性的影响，探讨了典型催化剂上乙醇催化转化到丁醇中的双分子机理和Guerbet机理，总结了乙醇催化转化到丁醇中存在的问题、机遇和挑战。提出未来乙醇催化转化的研究重点应该放在高乙醇转化率下丁醇的选择性控制上，即利用均相催化剂研究策略，借助近原位条件下反应机理研究的结果，设计合成新型催化剂体系，实现乙醇到丁醇的高效转化。

Progress in catalytic conversion of ethanol to butanol

The great amount of ethanol production and its limited blending ratio in gasoline stimulates the conversion of ethanol to value-added chemicals. Due to the unique physical and chemical properties of butanol, one-step conversion of ethanol to butanol has gained great attention. Herein, the recent progresses in catalytic conversion of ethanol to butanol were summarized, and the effects of different homogeneous catalysts, hydroxyapatites, oxides and metal enhanced oxide catalysts on ethanol conversion and butanol selectivity were clarified. The direct and Guerbet routes over typical catalysts were discussed, and the problems, opportunities and challenges in the conversion of ethanol to butanol were highlighted. It is suggested that the future research on ethanol conversion should be focused on the butanol selectivity control at high ethanol conversions. By using the strategies of homogeneous catalysts and the results of in situ reaction mechanism study, more robust catalysts should be designed to achieve the high ethanol conversion and butanol selectivity.