Membrane reactors for the direct conversion of CO2 to dimethyl carbonate

Mengers, H.J.

doi:10.3990/1.9789036539432

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“…Several methods, such as adding co-reagents and dehydrants in the reaction systems, have been developed [16,17]. Furthermore, some new technologies, such as photo-assistant [14], electro-assistant [18], membrane separation [19], and supercritical CO 2 technology [20,21] have been introduced to boost the production of DMC in former reports. Even then, the reactions are preferred at strict conditions and the yield of DMC is relatively low.…”

Section: Introductionmentioning

confidence: 99%

Surface Reduced CeO2 Nanowires for Direct Conversion of CO2 and Methanol to Dimethyl Carbonate: Catalytic Performance and Role of Oxygen Vacancy

et al. 2018

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Ultralong 1D CeO 2 nanowires were synthesized via an advanced solvothermal method, surface reduced under H 2 atmosphere, and first applied in direct synthesis of dimethyl carbonate (DMC) from CO 2 and CH 3 OH. The micro morphologies, physical parameters of nanowires were fully investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), N 2 adsorption, X-ray photoelectron spectrum (XPS), and temperature-programmed desorption of ammonia/carbon dioxide (NH 3 -TPD/CO 2 -TPD). The effects of surface oxygen vacancy and acidic/alkaline sites on the catalytic activity was explored. After reduction, the acidic/alkaline sites of CeO 2 nanowires can be dramatically improved and evidently raised the catalytic performance. CeO 2 nanowires reduced at 500 • C (CeO 2 _NW_500) exhibited notably superior activity with DMC yield of 16.85 mmol gcat −1 . Furthermore, kinetic insights of initial rate were carried out and the apparent activation energy barrier of CeO 2 _NW_500 catalyst was found to be 41.9 kJ/mol, much tiny than that of CeO 2 _NW catalyst (74.7 KJ/mol).

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Section: Introductionmentioning

confidence: 99%

Surface Reduced CeO2 Nanowires for Direct Conversion of CO2 and Methanol to Dimethyl Carbonate: Catalytic Performance and Role of Oxygen Vacancy

et al. 2018

Catalysts

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show abstract

Membrane reactors for the direct conversion of CO2 to dimethyl carbonate

Abstract: Water vapor selective membranes: Towards the separation Chapter 3 of methanol and CO 2 for the production of dimethyl carbonate in catalytic membrane reactors ..

Cited by 1 publication

References 3 publications

Surface Reduced CeO2 Nanowires for Direct Conversion of CO2 and Methanol to Dimethyl Carbonate: Catalytic Performance and Role of Oxygen Vacancy

Surface Reduced CeO2 Nanowires for Direct Conversion of CO2 and Methanol to Dimethyl Carbonate: Catalytic Performance and Role of Oxygen Vacancy

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