Selective Coupling of Bioderived Aliphatic Alcohols with Acetone Using Hydrotalcite Derived Mg-Al Porous Metal Oxide and Raney Nickel.

Selective Coupling of Bioderived Aliphatic Alcohols with Acetone Using Hydrotalcite Derived Mg-Al Porous Metal Oxide and Raney Nickel.
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DOI:
10.1021/acssuschemeng.8b00733
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发表时间:
2018-07-02
影响因子:
8.4
通讯作者:
Barta K
Barta K
中科院分区:
化学1区
文献类型:
--
作者:
Fridrich B;Stuart MCA;Barta K

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将糖发酵成所谓的ABE混合物提供了短链含氧化合物的三组分混合物:丙酮、正丁醇和乙醇。为了将这些转化成类似于目前使用的化石能量载体的液体运输燃料,需要涉及C-C键形成的新型催化链延长方法。本文报道了一种简单的、非贵金属基的方法,该方法使用固体碱Mg-Al-PMO与少量Raney镍结合,高选择性地将1-丁醇和丙酮偶联成高分子量(C7-C11)酮,以及将ABE混合物偶联成(C5-C11)酮。在加氢脱氧后,这些酮被转化为燃料范围的烷烃,具有优异的碳利用率(高达89%),使用地球丰富的含金属催化剂。讨论了ABE混合物与长链脂肪酮的选择性偶联及其转化为运输燃料烷烃的反应。
Fermentation of sugars to the so-called ABE mixture delivers a three component mixture of shorter chain oxygenates: acetone, n-butanol and ethanol. In order to convert these into liquid transportation fuels that are analogous to the currently used fossil energy carriers, novel catalytic chain elongation methods involving C–C bond formation are desired. Herein we report on a simple, non-noble-metal-based method for the highly selective coupling of 1-butanol and acetone into high molecular weight (C7–C11) ketones, as well as ABE mixtures into (C5–C11) ketones using the solid base Mg–Al–PMO in combination with small amount of Raney nickel. Upon hydrodeoxygenation, these ketones are converted to fuel range alkanes with excellent carbon utilization (up to 89%) using Earth abundant metal containing catalysis. Selective coupling of ABE mixture to chain elongated aliphatic ketones and their conversion into transportation fuel range alkanes is discussed.
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