- Title
- The role of Ni sites located in mesopores in the selectivity of anisole hydrodeoxygenation
- Creator
- Yan, Penghui; Tian, Xinxin; Kennedy, Eric M.; Stockenhuber, Michael
- Relation
- Catalysis Science & Technology Vol. 12, Issue 7, p. 2184-2196
- Publisher Link
- http://dx.doi.org/10.1039/d1cy02132j
- Publisher
- Royal Society of Chemistry
- Resource Type
- journal article
- Date
- 2022
- Description
- A highly dispersed Ni catalyst with an increased number of Ni sites selectively distributed in the mesopores of HBEA has been developed and applied in anisole hydrodeoxygenation (HDO) in a continuous-flow reactor under a high WHSV (2.8 min−1). The developed catalyst (Ni/BEA-OR-PH) displayed a significantly higher cyclohexane formation rate compared to the catalysts prepared by incipient wetness impregnation (Ni/BEA-IWI) and deposition–precipitation (Ni/BEA-DP) methods, which was attributed to its higher number of accessible active metal sites in mesopores. While the Ni/BEA-DP as well as Ni/BEA-OR-PH exhibited a high dispersion, a higher concentration of Ni species was located in micropores and distributed as charge-compensating cations, leading to a low concentration of high-temperature desorbed H per surface Ni, which facilitates the hydrogenolysis activity but restricts the hydrogenation of aromatics. Therefore, a high yield of BTX (benzene, toluene and xylene isomers) products was detected over Ni/BEA-DP.
- Subject
- mesopores; hydrodeoxygenation; depositon precipitation methods; isomers
- Identifier
- http://hdl.handle.net/1959.13/1472825
- Identifier
- uon:48924
- Identifier
- ISSN:2044-4753
- Language
- eng
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