通过菜籽油酯与（生物）乙烯的异构复分解反应制备生物燃料，用于当代柴油发动机。

Pfister Kai F, Baader Sabrina, Baader Mathias, Berndt Silvia, Goossen Lukas J

Department of Chemistry, Technical University of Kaiserslautern, D-67663 Kaiserslautern, Germany.

Fakultät für Maschinenbau und Schiffstechnik, University of Rostock, D-18059 Rostock, Germany.

Sci Adv. 2017 Jun 16;3(6):e1602624. doi: 10.1126/sciadv.1602624. eCollection 2017 Jun.

Rapeseed oil methyl ester (RME) and (bio)ethylene are converted into biofuel with an evenly rising boiling point curve, which fulfills the strict boiling specifications prescribed by the fuel standard EN 590 for modern (petro)diesel engines. Catalyzed by a Pd/Ru system, RME undergoes isomerizing metathesis in a stream of ethylene gas, leading to a defined olefin, monoester, and diester blend. This innovative refining concept requires negligible energy input (60°C) and no solvents and does not produce waste. It demonstrates that the pressing challenge of increasing the fraction of renewables in engine fuel may be addressed purely chemically rather than by motor engineering.

菜籽油甲酯（RME）和（生物）乙烯被转化为具有均匀上升沸点曲线的生物燃料，该曲线符合现代（石油）柴油发动机燃料标准EN 590规定的严格沸点规格。在Pd/Ru体系的催化下，RME在乙烯气流中进行异构化复分解反应，生成特定的烯烃、单酯和二酯混合物。这种创新的精炼概念所需能量输入可忽略不计（60°C），无需溶剂，也不产生废物。它表明，增加发动机燃料中可再生成分这一紧迫挑战或许可完全通过化学方法解决，而非依靠发动机工程手段。