Journal
ACS CATALYSIS
Volume 4, Issue 11, Pages 3877-3880Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cs501221q
Keywords
hetergeneous catalysis; CO2 conversion; dimethyl carbonate; dehydrating agent; 2-cyanopyridine; high presure methanl conversion; continuous flow; fixed bed reactor
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Funding
- ICIQ Foundation
- MINECO [CTQ2012-34153]
- MINECO through Severo Ochoa Excellence Accreditation [SEV-2013-0319]
- AGAUR - Generalitat de Catalunya, Spain
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Methanol and carbon dioxide are continuously and efficiently converted to dimethyl carbonate (DMC) over a CeO2 catalyst using 2-cyanopyridine as a recyclable dehydrating agent in a fixed bed reactor. The process was operated over a wide range of pressure (1300 bar) by feeding CO2 and the stoichiometric amount of methanol and 2-cyanopyridine mixture into the reactor. The study shows a successful demonstration of direct DMC synthesis mediated by a dehydrating agent with outstanding methanol conversion (>95%) and dimethyl carbonate selectivity (>99%) under optimized conditions. Remarkably higher reaction rates were achieved compared to those in batch operation.
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