Spivey James J, Egbebi Adefemi
Louisiana State University, Cain Department of Chemical Engineering, Baton Rouge, LA 70803, USA.
Chem Soc Rev. 2007 Sep;36(9):1514-28. doi: 10.1039/b414039g. Epub 2007 Mar 7.
The selective catalytic conversion of biomass-derived syngas into ethanol is thermodynamically feasible at temperatures below roughly 350 degrees C at 30 bar. However, if methane is allowed as a reaction product, the conversion to ethanol (or other oxygenates) is extremely limited. Experimental results show that high selectivities to ethanol are only achieved at very low conversions, typically less than 10%. The most promising catalysts for the synthesis of ethanol are based on Rh, though some other formulations (such as modified methanol synthesis catalysts) show promise.
在30巴压力下，温度低于约350摄氏度时，将生物质衍生合成气选择性催化转化为乙醇在热力学上是可行的。然而，如果允许甲烷作为反应产物，那么转化为乙醇（或其他含氧化合物）的程度极为有限。实验结果表明，只有在极低的转化率（通常低于10%）下才能实现对乙醇的高选择性。合成乙醇最有前景的催化剂是以铑为基础的，不过其他一些配方（如改性甲醇合成催化剂）也显示出了潜力。
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