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2 edition of Hydrogenolysis and reforming properties of platinum and platinum-tin supported catalysts. found in the catalog.

Hydrogenolysis and reforming properties of platinum and platinum-tin supported catalysts.

Juvarajan Sivalingam

Hydrogenolysis and reforming properties of platinum and platinum-tin supported catalysts.

by Juvarajan Sivalingam

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Published by Brunel University in Uxbridge .
Written in English


Edition Notes

ContributionsBrunel University. Department of Chemistry.
The Physical Object
Pagination216p. :
Number of Pages216
ID Numbers
Open LibraryOL14473542M

Catalytic combustion of ethyl acetate over ceria-promoted platinum supported on Al2O3 and ZrO2 catalysts. Gina Pecchi, Patricio Reyes, M. Graciela Filiberto,T. Lopez,J. L. G. Fierro. J. Sol-gel Sci. And Tech. 37 () catalysts other than cobalt has increased. Platinum and palladium based catalysts have been studied and the results of the latter [56] seem very. Chapter 1. promising. Platinum has been known for many years to have a high preference for the formation of linear products, but ligand decomposition hampers applications [57].

"The structure of platinum-tin reforming catalysts". Platinum Metals Review, 36(3), , Srinivasan, R.; Davis, B. H., "X-ray diffraction and electron microscopy studies of . Platinum-Rh enium Catalysts These a lumina supported bimetalli c catal ysts genera lly contain an amount of rhe nium comparable to the amount of Pt (ofte n wt per cent each). These cata ly sts are prepared differently from other bimetallic catalysts and organometallic precursors as dirhenium decacarbony l, Re2(CO)1O are used to impregnate.

Machin, I.; Romero, T. and Ramírez de Agudelo, M. M. A detailed kinetic model for the hydrogenolysis, isomerization and dehydrogenation of n‐butane. Studies in Surface Science and Catalysis: Dynamics of Surfaces and Reaction Kinetics in Heterogeneous Catalysis , ‐ Support effects in hydrogenation of cinnamaldehyde over carbon nanofiber-supported platinum catalysts. Part I: Characterization and catalysis, J. Catalysis, , ,


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Hydrogenolysis and reforming properties of platinum and platinum-tin supported catalysts by Juvarajan Sivalingam Download PDF EPUB FB2

The catalytic reforming of n-heptane over Pt/Al 2 O 3, Sn/Al 2 O 3 and Pt-Sn/Al 2 O 3 has been studied. Distinct activity and selectivity changes have been observed during the operation of each catalyst. The use of the bi-metallic catalyst results in the control of coke Cited by: @article{osti_, title = {Platinum-tin catalysts supported on silica highly selective for n-hexane dehydrogenation}, author = {Llorca, J and Homs, N and Sales, J and Piscina, P.R.

de la}, abstractNote = {Silica-supported Pt-Sn catalysts were prepared by two-step impregnation from [PtCl{sub 2}(PPh{sub 3}){sub 2}] and SnCl{sub 2} solutions of appropriate concentrations to yield Pt/Sn atomic.

The Structure of Platinum-Tin Reforming Catalysts By R. Srinivasan and Burtron H. Davis Center for Applied Energy Research, University of Kentucky, Lexington, U.S.A. Platinum-tin on alumina catalysts appear to have potential for use during naphtha reforming in processes utilising continuous catalyst.

JOURNAL OP CATALY () Platinum-Tin Reforming Catalysts II. Activity and Selectivity in Hydrocarbon Reactions R. BURCH AND L. GARLA1 Department of Chemistry, The University, Reading RG6 2AD, England Received Febru ; revised A series of bimetallic catalysts has been prepared by impregnating a commercial Pt/alumina catalyst (series B Cited by: Open Library is an open, editable library catalog, building towards a web page for every book ever published.

Author of Hydrogenolysis and reforming properties of platinum and platinum-tin supported catalysts, Properties of some platinum and platinum-tin supported catalysts. The spectra for the aluminium 2p and the platinum 4f regions are shown in Figure 3 for the same platinum to tin ratio of sample.

Because the aluminium 2p peak of the alumina support overlaps with the platinum 4f peaks, curve deconvolution was carefully carried out assuming the intensity ratio of 4f 5/2 to 4f 7/2 was The binding energies of the platinum peaks in Figure 3 are.

Catalytic reforming is an important refinery process for the production of high-octane gasoline, hydrogen, and aromatics from naphtha. The most important reactions occurring are dehydrogenation of.

Catalysts based on platinum-tin and platinum-gallium in close contact for the selective hydrogenation of cinnamaldehyde Article in Journal of Catalysis (1) April with Reads. Tin-platinum bimetallic catalysts are widely used in reforming technologies and dehydrogenation of hydrocarbons.

Despite the large amount of work done in the field of preparation and use of Sn-Pt/Al{sub 2}O{sub 3} catalysts, there are still many questions to be answered: i.e., (i) in what forms (metallic or ionic) does tin exist on the surface of the support, (ii) how to stabilize the required.

The addition of various metals to Pt-coated ceramic foam monoliths was examined for the autothermal oxidative dehydrogenation of ethane to ethylene at °C at contact times of 5 ms. The addition of Sn or Cu to Pt-monoliths enhanced both C2H6 conversions and C2H4 selectivities significantly, giving higher C2H4 yields.

No deactivation or volatilization of the catalysts was by: Bimetallic Platinum Catalysts for Paraffin Dehydrogenation S. Kogan views since: Spectroscopic Studies on the Degradation of Methylene Blue by Using TiO2 and TiO2 - (x) ZnFe2O4 V. Kassabova-Zhetcheva et al. views since: Recent Advances in Carbon-Based Sulfonated Catalyst: Preparation and Application.

$\begingroup$ Sure copper catalysts are even more common than palladium and platinum. But Tammann Temperature of copper is only $^0\mathrm{C}$. While its $^0\mathrm{C}$ for platinum and $^0\mathrm{C}$ for palladium.

$\endgroup$ – Yomen Atassi Jul 21 '15 at Platinum–tin complexes were prepared by the reduction of Pt(IV) with Sn(II) in HCl media and studied by light absorption spectrometry, X-ray photoelectron spectroscopy (XPS), and electron microscopy.

The formation of three complexes, H 3 [Pt(SnCl 3) 5], H 2 [Pt(SnCl 3) 2 Cl 2], and H 2 [Pt 3 (SnCl 3) 8], depending on HCl and SnCl 2 Cited by: The effect of thermal ageing on metal crystallite growth and catalytic activity of supported platinum group metal catalysts (I.L.

Dodgson and D.E. Webster) The formation of disperse structure of an active component on the carrier surface in the process of preparation and activation of an impregnated catalyst (V.V. Kostrov, I.P. Kirillov, Y. SYNTHESIS AND CHARACTERIZATION OF NEW METAL-CARBON CATALYSTS FOR HYDROGENATION OF D-GLUCOSE LIU JIAJIA NATIONAL UNIVERSITY OF SINGAPORE SYNTHESIS AND CHARACTERIZATION OF NEW METAL-CARBON CATALYSTS FOR HYDROGENATION OF D-GLUCOSE LIU JIAJIA (, Tianjin University) A THESIS SUBMITTED.

Hydrogenation of ethylene and dehydrogenation and hydrogenolysis of ethane on Pt() and Pt() have been studied using density functional theory (DFT) calculations. Adsorption of CHx and C2Hx species on Pt() and Pt() has been investigated.

All the dehydrogenation and hydrogenation elementary-like reactions of C2 species, all the C−C bond-cleavage reactions and isomerization. The provided is a method for preparing a platinum-tin-metal-alumina catalyst by comprising: as an active ingredient, platinum which has a high activity in a direct dehydrogenation reaction of n-butane, tin which can increase the catalyst stability by preventing carbon deposition; additionally metal for reducing the level of catalyst inactivation over the reaction time; and an alumina.

FIGURE Propane dehydrogenation provides the highest yields of propylene. NOTE: FCC = fluid catalytic cracking; MTO = methanol to olefin. SOURCE: Bricker, Of all of the technologies that have been developed that produce propylene, PDH provides the highest yield (see Figure ), and because of the price differential between propane and propylene, PDH economics are quite favorable and.

Platinum cluster size has a significant influence on the activity, selectivity, and stability as well as the reaction mechanism during propane dehydrogenation (PDH).

Well-controlled platinum catalysts of different cluster sizes are prepared by a seed growth method and supported on calcined hydrotalcite.

The Pt catalysts show strong structure-sensitive behavior both in the C–H bond activation Cited by:   Platinum and tin-containing catalyst and use thereof in alkane dehydrogenation. United States Patent Abstract: In a process for preparing a dehydrogenation catalyst of the type in which a support comprising zinc aluminate is impregnated with at least one of platinum and tin from an impregnation solution, the improvement comprises.

Remarkably Effective Catalysts for Enantioselective Metal Carbene Transformations Michael P. Doyle Chapter 4, DOI: /bkch Publication Date (Print): May 5, Selective hydrogenation of α,β-unsaturated ketones to α,β-unsaturated secondary alcohols is a challenging reaction for heterogeneous catalysts because of the nonuniformity of their surface active sites, and high-yield synthesis of the target α,β-unsaturated secondary alcohols has not been achieved by heterogeneous catalysts.

Herein, we found that Fe cation modified Ir/MgO acted as an Cited by: Polish Journal of Chemical Technology The Journal of West Pomeranian University of Technology, SzczecinCited by: 1.