dos Santos Tatiane R, Harnisch Falk, Nilges Peter, Schröder Uwe
Institute of Environmental and Sustainable Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: +(49) 0531918424, Tel: (+49) 0531918425.
ChemSusChem. 2015 Mar;8(5):886-93. doi: 10.1002/cssc.201403249. Epub 2015 Feb 3.
Electroorganic synthesis can be exploited for the production of biofuels from fatty acids and triglycerides. With Coulomb efficiencies (CE) of up to 50 %, the electrochemical decarboxylation of fatty acids in methanolic and ethanolic solutions leads to the formation of diesel-like olefin/ether mixtures. Triglycerides can be directly converted in aqueous solutions by using sonoelectrochemistry, with olefins as the main products (with a CE of more than 20 %). The latter reaction, however, is terminated at around 50 % substrate conversion by the produced side-product glycerol. An energy analysis shows that the electrochemical olefin synthesis can be an energetically competitive, sustainable, and--in comparison with established processes--economically feasible alternative for the exploitation of fats and oils for biofuel production.
有机电合成可用于从脂肪酸和甘油三酯生产生物燃料。在甲醇和乙醇溶液中，脂肪酸的电化学脱羧反应的库仑效率（CE）高达50%，可生成类似柴油的烯烃/醚混合物。甘油三酯可通过声电化学在水溶液中直接转化，主要产物为烯烃（CE超过20%）。然而，后一反应会因生成的副产物甘油在底物转化率约50%时终止。能量分析表明，电化学烯烃合成在能量方面具有竞争力、可持续，并且与现有工艺相比，在利用油脂生产生物燃料方面在经济上可行。
