Diethyl carbonate synthesis from CO2 with dehydrating agent of ethylene over catalysts of supported and mixed Ni–Cu@Na3PW12O40

Novel ZrFe2ZnO6 with multiple functional composite supports for one-step synthesis of diethyl carbonate from CO2 and ethanol

“…Compared to physical water removal, chemical water removal has two advantages: higher water removal capacity and a faster water removal rate. 3 We found that the water removal rate is even much more critical than the water removal capacity for increasing the DEC yield, which is understandable as quickly removing water can minimize the direct water contact of the active sites, thus keeping the sites active.…”

“…Diethyl carbonate (DEC) is a widely used chemical intermediate in chemical, pharmaceutical, energy, and other fields. 1 For example, DEC can be used to make pesticides, 2 adhesives, 3 sedatives for clinical use, 4 electrolytes of lithium ion batteries, 5 and gasoline additives to increase the octane number. 6 DEC is an efficient fuel additive, and can greatly improve the octane number of a fuel.…”

Product Yield Increasing More Than 20 Times Achieved by Reducing Water Poisoning for Direct Diethyl Carbonate Synthesis

“…At home and abroad, there have been a large number of research reports on the synthesis of diethyl carbonate from CO 2 and ethanol, , mainly engaged in the preparation and mechanism of different catalysts. − Doped metal oxides, mainly CeO 2 -based or ZrO 2 -based oxides, are the focus of research. − In addition, bimetallic Cu–Ni-supported catalysts have also been studied extensively. , At present, the commonly accepted catalytic mechanism for this reaction is the “Lewis acid–base site synergistic catalytic mechanism”. − The base sites activate CO 2 , while the acid sites activate ethanol molecules. − Finally, under synergistic catalysis of the acid and base sites, the diethyl carbonate molecule is formed.…”

A multifunctional carrier for composite ZnFe2O4: a catalyst for improved one-step diethyl carbonate synthesis from CO2 and ethanol

“…Water can decrease the catalyst activity or even deactivate the catalyst completely, which is the main reason for the low yield of diethyl carbonate at present. 33,34 Although a large number of catalysts have been designed and prepared, their catalytic effect is not ideal; generally the DEC yield is about 1-5%. 35,36 In this paper, an in situ water removal solution is proposed, as shown in Fig.…”