1. Direct Mechanism of the First Carbon-Carbon Bond Formation in the Methanol-to-Hydrocarbons Process.
- Author
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Wu, Xinqiang, Xu, Shutao, Zhang, Wenna, Huang, Jindou, Li, Jinzhe, Yu, Bowen, Wei, Yingxu, and Liu, Zhongmin
- Subjects
CARBON-carbon bonds ,METHANOL ,HYDROCARBONS ,CHEMICAL processes ,SURFACE chemistry - Abstract
In the past two decades, the reaction mechanism of C−C bond formation from either methanol or dimethyl ether (DME) in the methanol-to-hydrocarbons (MTH) process has been a highly controversial issue. Described here is the first observation of a surface methyleneoxy analogue, originating from the surface-activated DME, by in situ solid-state NMR spectroscopy, a species crucial to the first C−C bond formation in the MTH process. New insights into the first C−C bond formation were provided, thus suggesting DME/methanol activation and direct C−C bond formation by an interesting synergetic mechanism, involving C−H bond breakage and C−C bond coupling during the initial methanol reaction within the chemical environment of the zeolite catalyst. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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