An increase in the Sn/Pt ratio will further reduce the particle size of Pt and increase its dispersion. When the Sn/Pt ratio is 1.5, it shows the best catalytic activity. The metal particle size of the catalyst has a great influence on the dehydrogenation process of methylcyclopentane (MCP), showing an obvious size effect.
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This paper describes the structure evolution of Pt-Sn bimetallic nanoparticles for catalytic dehydrogenation, especially Sn segregation for surface recovery of a Pt-Sn alloy. An acid etching-reduction process was adopted to investigate the migration of Sn atoms after surface Sn species loss. By acid etching, Sn atoms at the surface of Pt-Sn ...
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ABOUT US. SBM Group since its inception in 2007 in Singapore has been one of the pioneers in the field of Marine Offshore Services, Shipbuilding and Repairing, Oil and Gas Engineering enabling significant progress in efficiency of services by providing real-time information and process control solutions. Our engineering team has a varied domain ...
Make the world your workplace. SBMers have been pioneering offshore energy for over 60 years, advancing the industry through the innovations of our products, services, digital solutions, and more. We recognize the people behind our track record and those leading our transformation today. That's why we are committed, as ever, to employing and ...
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SBM Group since its inception in 2007 in Singapore has been one of the pioneers in the field of Marine Offshore Services, Shipbuilding and Repairing, Oil and Gas Engineering enabling significant progress in efficiency of services by providing real-time information and process control solutions. Our engineering team has a varied domain expertise ...
SBM Offshore is pleased to announce that it has signed a Letter of Intent (LOI) together with Petróleo Brasileiro S.A. (Petrobras) for a 26.25 years lease and operate contract for the FPSO Almirante Tamandaré, to be deployed at the Búzios field in the Santos Basin approximately 180 kilometers offshore Rio de Janeiro in Brazil.. Under the contract, SBM …
Aufbereitungsanlagen, Betonmischanlagen, Gebrauchtmaschinen, Prallbrecher, Kegelbrecher. SBM Mineral Processing. Das österreichische Traditionsunternehmen SBM Mineral Processing ist einer der führenden Komplettanbieter von Aufbereitungs- und Förderanlagen für die Rohstoff- und Recyclingindustrie und von Betonmischanlagen für …
Propane dehydrogenation on Pt–Sn/Al 2 O 3 and Pt–Sn/ZnAl 2 O 4 was performed, and the Pt–Sn/ZnAl 2 O 4 catalyst showed a stronger tolerance for catalytic deactivation than the Pt–Sn/Al 2 O 3 catalyst. In this study, we propose that the high catalytic stability of Pt–Sn/ZnAl 2 O 4 originates from the relatively faster coke mobility from the metal surface to the support, …
The various metals promoted Pt/Sn-SBA-15 catalysts (MPt/SSF, M = Ce, In, La, and Fe) were prepared by a conventional coimpregnation method and then were characterized by N2 adsorption/desorption, XRD, XPS, H2-TPR, H2-TPD, CO2-TPD, Raman, and TG techniques. The track of Sn species was not detected by XRD and XPS analysis due to its rather low content …
A series of the Pt-Sn/SBA-15 catalysts were prepared and their properties characterized by using X-ray powder diffraction (XRD), N 2 adsorption-desorption, high resolution transmission electron microscope, X-ray photoelectron spectroscopy (XPS) and H 2-temperature programmed reduction.Their performances in long chain alkane dehydrogenation were …
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