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Advances in Catalytic Conversion of Syngas to Ethanol and Higher Alcohols
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Author(s): Jie Sun (Xiamen University, China), Shaolong Wan (Xiamen University, China), Jingdong Lin (Xiamen University, China)and Yong Wang (Pacific Northwest National Laboratory, USA)
Copyright: 2016
Pages: 39
Source title:
Petrochemical Catalyst Materials, Processes, and Emerging Technologies
Source Author(s)/Editor(s): Hamid Al-Megren (King Abdulaziz City for Science and Technology, Saudi Arabia)and Tiancun Xiao (Oxford University, UK)
DOI: 10.4018/978-1-4666-9975-5.ch008
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Abstract
Ethanol and higher alcohols (C2+OH) have attracted much attention owing to their wide applications. They can be produced from syngas using homogeneous and heterogeneous catalysts. Although homogeneous catalysts exhibit high productivity and selectivity of C2+OH, difficulties in separating and recycling homogeneous catalysts remain challenging. Among heterogeneous catalysts, Rh-based catalysts show promising higher selectivity of C2+OH. However, prohibitive cost of Rh metal hinders its large-scale application. Non-noble metal based heterogeneous catalysts include modified methanol synthesis catalysts, modified Fischer-Tropsch (F-T) synthesis catalysts, and Mo/MoS2-based catalysts. Compared with the modified F-T synthesis catalysts and Mo/MoS2-based catalysts, production of undesired byproducts on modified Cu-based catalysts can be well suppressed. Here, the influences of additives and supports on catalytic activity of modified Cu-based catalysts are discussed. Reaction mechanism and development of novel reactors are also included.
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