Catalytic processes for the direct synthesis of dimethyl carbonate from CO₂ and methanol: a review

Abstract

Direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol has recently drawn much attention because such a process would allow the application of the green chemistry principles. However, its...

Strengthening the Connection between Science, Society and Environment to Develop Future French and European Bioeconomies: Cutting-Edge Research of VAALBIO Team at UCCS

“…In this context, the research projects developed in the VAALBIO group at UCCS encompass several key directions: biomass fractionation, cellulose [119,120] and hemicellulose valorization [121], green hydrogen production and CO 2 valorization [122][123][124][125][126][127], and more recently, multicatalytic materials [128] and lignin valorization. As shown above, our research projects concern mainly the synthesis of important chemical synthons using heterogeneous and chemo-enzymatic processes.…”

Zn‐Doped CeO2 Nanorods: a Highly Efficient Heterogeneous Catalyst for the Direct Synthesis of Dimethyl Carbonate from CO2 and Methanol

“…Finally, the target product DMC was obtained by the reaction between another methoxy species and methoxy carbonate species. [11][12][13] Therefore, the significant enhancement in DMC yield over Ce 1 Zn 0.1 O δ nanorods catalyst was attributed to the highest amount of oxygen vacancies and weaker basic sites. Due to doping of Zn, the increased oxygen vacancies facilitated the adsorption and activation of CO 2 for its nonreductive conversion and weak basic sites prevent the desorption of methoxy species.…”

Advances in Thermo-, Photo-, and Electrocatalytic Continuous Conversion of Carbon Dioxide into Liquid Chemicals

“…Organic carbonates are one of the important classes of CO 2 -derived chemicals and have a wide range of applications in assorted areas such as polymers, pharmaceuticals, batteries, and fuel additives. , The family of organic carbonates comprises cyclic carbonates and alkyl carbonates, and they are synthesized directly by the reaction of CO 2 with epoxides and alcohols, respectively, under diverse reaction conditions and deploying assorted catalytic systems. Dimethyl carbonate (DMC), a symmetric alkyl carbonate, is synthesized by the reaction of methanol and CO 2 in the presence of a dehydrating agent. − The reaction is thermodynamically unfavorable due to the generation of water as a side product, which shifts the reaction equilibrium toward the backward direction (Scheme ). , …”

“…Dimethyl carbonate (DMC), a symmetric alkyl carbonate, is synthesized by the reaction of methanol and CO 2 in the presence of a dehydrating agent. − The reaction is thermodynamically unfavorable due to the generation of water as a side product, which shifts the reaction equilibrium toward the backward direction (Scheme ). , …”

“…37−39 The reaction is thermodynamically unfavorable due to the generation of water as a side product, which shifts the reaction equilibrium toward the backward direction (Scheme 1). 39,40 Consequently, it is necessary to use some dehydration means including dehydrating agents to achieve higher yield of DMC. There are two types of dehydrating agents, organic and inorganic; they are chemically diverse in terms of activity, solubility, end product, and regeneration and could help to develop an efficient dehydration system.…”