Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Y-zeolite"”.
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The use of ruthenium Y zeolite catalysts for the selective methanation of carbon monoxide
… catalysts for SMET include Ru/Al2O3 and Ru/Y zeolites. This study involved the use of Ru/Y zeolite catalysts with loadings between 1 wt.%-5.4 wt.% Ru prepared via ion exchange, and a commercial 5 wt.% Ru/Al₂O3. These catalysts were tested in a fixed bed reactor at temperatures between 160°C …
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Fractional Catalytic Pyrolysis Technology for the Production of Upgraded Bio-oil using FCC Catalyst
… in the presence of an acid catalyst or zeolite to promote deoxygenation and cracking of the primary vapors into hydrocarbons and small oxygenates. This dissertation examines the utilization of conventional fluid catalytic cracking (FCC) catalyst in the fractional catalytic pyrolysis of …
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Reactivity and Structure of Supported Nickel Phosphides (Ni₂P) in Deep Hydrodesulfurization Catalysis
… supports, SiO₂, MCM-41, and ultra-stable Y zeolite (USY). It also includes determining the characteristics of the supported Ni₂P catalysts with a wide range of techniques: X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) and X-ray …
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Inclusion of Molybdenum into microporous and mesoporous materials
… using porous supports. The supports were zeolite Y types, large microporous cloverite, and mesoporous MCM-41. The large pore supports were used to produce catalysts that can accommodate catalysis reactions involving large molecules. The objective of this work is to study the preparation …
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Zeolite encapsulated metal complexes as heterogeneous catalysts for oxidation reactions
… or modify the framework or structure of the zeolite, confirming successful immobilization of Schiff-bases through the voids of zeolite Y.These encapsulated complexes were screened as heterogeneous catalysts for various oxidation reactions such as such as phenol, benzene, styrene and …
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Glycerol Oxidation with Zeolite and Hierarchical Zeolite as Catalysts and Electrocatalysts
… alternative to O2. Four series of different zeolites (X, Y, ZSM-5, and BEA), either in sodic (Na+) and Protonic (H+) forms, were modified with the introduction of ions of transition metals (Cu, Fe, Ni, Zn) via ion-exchange method. The obtained materials were characterized (XRD, N2 …
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Simultaneous production of methanol and dimethylether from synthesis gas
… catalysts including alumina, silica-alumina and zeolites with different physicochemical characteristics. The effects of temperature and the presence of water vapour in the feed on catalytic performance have been studied in detail. The reactivity of catalysts has been evaluated by determining the …