Year-end Sale % OFF 
Abstract
The effects of pore size on Ru/SiO2 catalyst performance were investigated for Fischer–Tropsch synthesis under the conditions of 503K, 20bar and 1800h−1. Ru/SiO2 with 10nm pore size catalyst showed higher catalytic activity than Ru/SiO2 catalysts with 3, 6 and 30nm pore sizes. The 10nm pore size, Ru/SiO2 catalyst exhibited uniform pore diameter, an increased surface concentration of active Ru metals, and the increased dispersion of Ru on the surface compared to the other pore diameters. Deactivation was clearly observed for all Ru/SiO2 catalysts during the reaction. The addition of small amounts of Zr and Mn (1:30, Zr or Mn:Si) improved catalytic activity and stability for Fischer–Tropsch synthesis. The deactivation rate of Ru/Zr/Q10 was about 21% at 51h time on stream and this rate was much lower than Ru/Q10 (57%). Ru/Mn/Q10 showed higher catalytic activity than Ru/Q10 and Ru/Zr/Q10, and its deactivation rate was much lower ~9% after 51h time on stream. The small amount of Mn added to the Ru/SiO2 increased the concentration of active Ru metals and enhanced their dispersion on the support surface.
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.
