Abstract
Carbon dioxide is a promising nonconventional oxidant for catalytic dehydrogenation of lower alkanes to olefins. The lower catalytic activity of CO2 compared to oxygen, which is typically used in oxidative dehydrogenation (ODH), also means that more reactive olefins are less likely to undergo undesirable combustion in the presence of CO2. Supported vanadia catalysts were synthesized by incipient wetness impregnation of silica supports, and by varying the surface coverage of VOx species by means of sodium on the silica surface, the nature of the catalyst was investigated. Promotion with Na cations significantly improved the dispersion of surface VOx species but resulted in the formation of surface Na metavanadate or another reduced V3+/V4+ phase, which lacked catalytic activity in propane ODH in the presence of CO2.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
