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 9 of 9 for “"water-gas shift reactions"”.
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Studies of an alkali impregnated cobalt-molybdate catalyst for the water-gas shift and the methanation reactions
… cobalt0-molybdate on an A1 203 support, for the water-gas shift, methanation, and ethanol dehydration reactions, we can make the following conclusions: 1. The cesium-impregnated "Aldridge" catalyst is highly active for the water-gas shift reaction under sulfur tolerant conditions. 2. The activity …
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Preferential oxidation of carbon monoxide in hydrogen-rich gases over supported cobalt oxide catalysts
… (approx. 0.5 - 1 vol%) in the H2-rich reformate gas after the high- and low-temperature water-gas shift reactions. CO-PROX makes use of air to preferentially oxidise CO to CO₂, reducing the CO content to below 10 ppm while minimising the loss of H₂ to H₂O. In this study, a Co₃O₄/γ-Al₂O₃ model …
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The development of ceria-based catalysts for automotive after-treatment applications
… including; fluid catalytic cracking, water gas shift reactions, solid oxide fuel cells and automotive catalytic after-treatment. It has often been the material of choice for supporting precious metals in many of the applications previously mentioned, as it can provide a high surface …
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Simultaneous production of methanol and dimethylether from synthesis gas
Dimethylether is a non-toxic liquefied gas, which is projected to become one of the fundamental chemical feedstock in the future. Dimethylether can be produced from syngas via a two-step (indirect) process that involves synthesis of methanol by hydrogenation of CO/CO2 over a copper based catalyst …
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Interactions of biomass derived oxygenates with heterogeneous catalysts in aqueous and vacuum environments
… polarity of most biomass derived molecules makes water the ideal solvent for biomass upgrading reaction schemes. Metal oxide and metal oxide supported catalysts are heavily used in oil refining and petrochemical production, and are capable of upgrading biomass molecules as well. However, the …
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Catalytic Reforming of Biogas for Syngas Production
Biogas is a mixture of methane and carbon dioxide produced from the anaerobic microbial digestion of biomass. It is an inexpensive, local source of energy but is usually wasted because the CO₂ content dilutes the quality of the fuel. Dry and auto-thermal reforming are catalytic methods that convert …
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Investigation of Ni-Ceria Nanocatalysts: Improved Computational Methods Towards Hydrogen Production in Aquaprocessing of Heavy Oil
… (NPs) are promising nanocatalysts for water splitting and water gas shift reactions due to the ability of ceria to temporarily donate oxygen to the catalytic reaction and accept oxygen after the reaction is completed. Therefore, elucidating how different properties of the nanoparticles, …
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Co-electrolysis of simulated coke oven gas using solid oxide electrolysis cell technology
… research investigates utilisation of coke oven gas (COG) and its impurities (H2S and phenol) in the means of co-electrolysis using a commercially available anode supported solid oxide cell (SOC). SOCs are highly efficient electrochemical energy conversion devices that can potentially reduce …
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Utilisation of biomass-derived gaseous fuels using solid-oxide fuel cells
… devices that can potentially reduce greenhouse gas emissions and revolutionize our energy infrastructures. This research investigates and demonstrates novel and highly efficient methods of utilising renewable biomass-derived gases using SOFC technology with commercially available anode (ASC) and …