Low pressure CO2 to dimethyl carbonate by the reaction with methanol promoted by acetonitrile hydration

Honda, Masayoshi; Suzuki, Atsushi; Begum, Nasreen; Fujimoto, Ken Ichiro; Suzuki, Kimihito; Tomishige, Keiichi

doi:10.1039/b909610h

Cited by 117 publications

(67 citation statements)

References 25 publications

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“…[20][21][22][23][24][25][26] Cu/La 2 O 3 basic sites have as ignificant effect on the conversion to glycerol carbonate. [24] Liu et al synthesized CeO 2 with different morphologies using three methods:t raditional precipitation, hydrothermal synthesis and sol-gel citrate.…”

Section: Introductionmentioning

confidence: 99%

Direct Carbonation of Glycerol with CO₂ Catalyzed by Metal Oxides

Ozorio

Mota

2017

ChemPhysChem

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Five metal oxides (ZnO, SnO2, Fe2O3, CeO2, La2O3) were produced by the sol–gel method and tested in the direct carbonation of glycerol with CO2. Initial tests with Fe2O3 showed that the best reaction condition was 180 °C, 150 bar, and 12 h. The other oxides were evaluated at these conditions and were all active to the formation of glycerol carbonate. Zinc oxide was the most active catalyst, with a yield of 8.1 % in the organic carbonate. The catalytic activity decreased upon washing and drying the ZnO catalyst between the runs. Nevertheless, the activity is maintained if the ZnO is washed and calcined at 450 °C between the runs. FTIR and TGA results indicated the formation of ZnCO3 as the main cause of catalyst deactivation, which may be decomposed upon calcination of the material. No appreciable leaching of Zn was observed, indicating a truly heterogeneous catalysis.

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Section: Introductionmentioning

confidence: 99%

Direct Carbonation of Glycerol with CO₂ Catalyzed by Metal Oxides

Ozorio

Mota

2017

ChemPhysChem

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“…Honda et al [124,125] reported carbonylation of methanol using acetonitrile as dehydrating agent instead of a ketal. They reached a DMC yield of 3 % at 0.…”

Section: Dehydrating Agentsmentioning

confidence: 98%

Review for the Direct Synthesis of Dimethyl Carbonate

et al. 2014

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This review summarizes the state-of-the-art for direct synthesis of dimethyl carbonate (DMC) from carbon dioxide and methanol. In addition, conventional and alternative processes are also discussed in order to understand the advantages and disadvantages of the direct synthesis of DMC. Furthermore, the major applications of DMC are described: solvent, fuels additive, and building block for organic synthesis. The major drawbacks of the direct synthesis of DMC are the low yield and reaction rate, mostly induced by the highly stable carbon dioxide molecules. The development of novel catalyst and strategies to enhance the DMC yield -such as dehydrating agents that remove the water from the reacting mixture -are pointed out as the key solution for this route. Therefore, the main catalysts (homogeneous and heterogeneous catalysts) used so far are presented, together with the respective operating conditions and catalyst performance. The use of different dehydrating agents to increase the DMC yield is also discussed.

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“…The effect of the addition of acetonitrile to the DMC synthesis over ceria was investigated [46]. The hydration of acetonitrile produces acetamide (Eq.…”

Section: Use Of Acetonitrile As a Dehydrating Agent For Dmc Synthesismentioning

confidence: 99%

“…The use of 2,2-dimethoxypropane as a dehydrating agent was applied to ceria-based catalysts [46]. However, this approach was less effective for DMC synthesis over ceria (CeO 2 -HS calcined at 873 K) than the use of nitriles.…”

Section: Use Of Other Dehydrating Agentsmentioning

confidence: 99%

“…The use of acetonitrile was tested in DMC synthesis over zirconia calcined at 673 K. In the conditions of 1 mmol catalyst, methanol:acetonitrile = 200:600 mmol, 0.5 MPa CO 2 , and 423 K, the amount of DMC reached 0.32 mmol after 24 h while methyl carbamate (0.19 mmol), acetamide (0.37 mmol) and methyl acetate (0.51 mmol) were also produced [46]. The yield was four times higher than what can be obtained at equilibrium in the absence of acetonitrile.…”

Section: Combination Of Dehydrating Agents With Zirconia-based Catalystsmentioning

confidence: 99%

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Direct Synthesis of Organic Carbonates from CO₂and Alcohols Using Heterogeneous Oxide Catalysts

Nakagawa

Honda²,

Tomishige

2014

Green Carbon Dioxide

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Low pressure CO2 to dimethyl carbonate by the reaction with methanol promoted by acetonitrile hydration

Abstract: CeO(2) catalysts catalyze the reaction of methanol with low pressure CO(2) to form dimethyl carbonate and the reaction was promoted by the combination with acetonitrile hydration over CeO(2).

Cited by 117 publications

References 25 publications

Direct Carbonation of Glycerol with CO₂ Catalyzed by Metal Oxides

Direct Carbonation of Glycerol with CO₂ Catalyzed by Metal Oxides

Review for the Direct Synthesis of Dimethyl Carbonate

Direct Synthesis of Organic Carbonates from CO₂and Alcohols Using Heterogeneous Oxide Catalysts

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Low pressure CO2 to dimethyl carbonate by the reaction with methanol promoted by acetonitrile hydration

Abstract: CeO(2) catalysts catalyze the reaction of methanol with low pressure CO(2) to form dimethyl carbonate and the reaction was promoted by the combination with acetonitrile hydration over CeO(2).

Cited by 117 publications

References 25 publications

Direct Carbonation of Glycerol with CO2 Catalyzed by Metal Oxides

Direct Carbonation of Glycerol with CO2 Catalyzed by Metal Oxides

Review for the Direct Synthesis of Dimethyl Carbonate

Direct Synthesis of Organic Carbonates from CO2and Alcohols Using Heterogeneous Oxide Catalysts

Contact Info

Product

Resources

About

Direct Carbonation of Glycerol with CO₂ Catalyzed by Metal Oxides

Direct Carbonation of Glycerol with CO₂ Catalyzed by Metal Oxides

Direct Synthesis of Organic Carbonates from CO₂and Alcohols Using Heterogeneous Oxide Catalysts