CO2-assisted ethane aromatization over zinc and phosphorous modified ZSM-5 catalysts
Journal Article
·
· Applied Catalysis. B, Environmental
- Columbia Univ., New York, NY (United States); Taiyuan Univ. of Technology (China)
- Dalian Univ. of Technology (China)
- Columbia Univ., New York, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Columbia Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
The tandem reactions of CO2-assisted oxidative dehydrogenation and aromatization (CO2-ODA) of ethane were investigated over ZSM-5 modified with zinc (Zn) and phosphorus (P) by experimental studies and DFT calculations. The nature of active Zn species and their interaction with P were elucidated for understanding Zn/P-ZSM-5 catalyzed CO2-ODA reaction of ethane. Compared to the direct dehydrogenation and aromatization (DDA) reaction, the Zn/P-ZSM-5 catalyst possessed higher ethane conversion, enhanced aromatics yield, and better stability in the CO2-ODA reaction. Here, the presence of CO2 reduced the carbon deposition, stabilized the Zn species, and thereby facilitated the generation of more liquid aromatics in CO2-assisted ethane aromatization. In situ characterization and DFT calculations provided insight into the mechanisms of CO2-ODA over the Zn/P-ZSM-5 catalyst.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1835117
- Alternate ID(s):
- OSTI ID: 1833767
- Report Number(s):
- BNL--222472-2021-JAAM
- Journal Information:
- Applied Catalysis. B, Environmental, Journal Name: Applied Catalysis. B, Environmental Vol. 304; ISSN 0926-3373
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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