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首页> 外文OA文献 >Electrosynthesis of dimethyl carbonate from methanol and CO2 using potassium methoxide and the ionic liquid [bmim][Br] in a filter-press cell: A study of the influence of cell configuration
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Electrosynthesis of dimethyl carbonate from methanol and CO2 using potassium methoxide and the ionic liquid [bmim][Br] in a filter-press cell: A study of the influence of cell configuration

机译：压滤池中甲醇钾和离子液体[bmim] [Br]从甲醇和CO2中电合成碳酸二甲酯：对池结构影响的研究

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BACKGROUND: The valorization of CO2 into added-value products appears to be a promising strategy for reducing CO2 emissions. Dimethyl carbonate (DMC) is an environmentally friendly valuable product, with multiple applications, suggested as a potential gasoline additive. However, DMC has traditionally been produced from hazardous phosgene and CO routes, which encourages the interest in developing new processes. The purpose of this work is to study the influence of the membrane in a filter-press electrochemical cell for the valorization of CO2 by the electrosynthesis of DMC from methanol in the presence of the ionic liquid [bmim][Br] and CH3OK and avoiding the addition of carcinogens. \udRESULTS: The performance of the process has been studied using six different anion exchange membranes in comparison with an undivided configuration and our previous study using a cationic exchange membrane. A significant increase in the initial reaction rate is achieved when no membrane is employed. Regardless of which membrane is used, an additional resistance seems to be introduced. A final concentration of 85mmolL-1 was obtained up to 48h without membrane, which is a 6-fold increase over our previous work.\udCONCLUSIONS: Although better results were obtained when no membrane was used, study of the divided cell has provided experimental evidence that can serve as a reference for the evaluation of future improvements in this electrosynthesis.
机译：背景：将二氧化碳增值成增值产品似乎是减少二氧化碳排放的有前途的策略。碳酸二甲酯（DMC）是一种环保有价值的产品，具有多种用途，被建议作为潜在的汽油添加剂。但是，DMC传统上是从危险的光气和CO路线生产的，这激发了开发新工艺的兴趣。这项工作的目的是研究在压滤电化学池中膜对离子液体[bmim] [Br]和CH3OK的存在下，由DMC由甲醇电合成甲醇对CO2增值的影响，并避免除了致癌物。结果：已经使用六种不同的阴离子交换膜与未分开的配置进行了研究，并且我们先前使用阳离子交换膜进行了研究。当不使用膜时，初始反应速率显着提高。无论使用哪种膜，似乎都会引入额外的阻力。在不使用膜的情况下，长达48h的最终浓度为85mmolL-1，比我们以前的研究提高了6倍。可以作为评估该电合成未来改进的参考。

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