Max-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany.
Chemical Process Engineering Research Institute, Center for Research and Technology Hellas, P.O. Box 361, 57001, Thessaloniki, Greece.
Angew Chem Int Ed Engl. 2017 Feb 20;56(9):2334-2339. doi: 10.1002/anie.201610405. Epub 2017 Jan 27.
A simple and efficient hydrodeoxygenation strategy is described to selectively generate and separate high-value alkylphenols from pyrolysis bio-oil, produced directly from lignocellulosic biomass. The overall process is efficient and only requires low pressures of hydrogen gas (5 bar). Initially, an investigation using model compounds indicates that MoC /C is a promising catalyst for targeted hydrodeoxygenation, enabling selective retention of the desired Ar-OH substituents. By applying this procedure to pyrolysis bio-oil, the primary products (phenol/4-alkylphenols and hydrocarbons) are easily separable from each other by short-path column chromatography, serving as potential valuable feedstocks for industry. The strategy requires no prior fractionation of the lignocellulosic biomass, no further synthetic steps, and no input of additional (e.g., petrochemical) platform molecules.
描述了一种简单高效的加氢脱氧策略，用于从木质纤维素生物质直接产生的热解生物油中选择性地生成和分离高价值的烷基酚。该过程整体高效，仅需低压氢气（5 巴）。最初，使用模型化合物进行的研究表明，MoC/C 是一种有前途的目标加氢脱氧催化剂，能够选择性地保留所需的 Ar-OH 取代基。通过将此程序应用于热解生物油，主要产物（苯酚/4-烷基苯酚和烃类）可以通过短程柱色谱法轻松彼此分离，可作为工业的潜在有价值的原料。该策略不需要对木质纤维素生物质进行预先分级，不需要进一步的合成步骤，也不需要输入额外的（例如，石油化工）平台分子。
