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 “"Catalyst testing"”.
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The suitability of Ni-Co catalysts in the dry reforming reaction
… reaction is the formation carbon which causes catalyst deactivation. Noble metal catalysts such as ruthenium and rhodium have shown great promise as dry reforming catalysts because of their resistance to carbon formation, but they are expensive making their use on an industrial scale unlikely. …
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Characterization of a novel laboratory internal recycle reactor for HTFT studies
… (RTD) study to determine its suitability for catalyst testing for High Temperature Fischer-Tropsch studies. It is required to not only ensure that the reactor behaves as a perfectly mixed CSTR, and but also to confirm that there is indeed sufficient flow through the catalyst bed thus ensuring …
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Hydroformylation of high temperature Fischer-Tropsch synthol products for the production of detergent alcohols
… work was to identify a suitable hydroformylation catalyst system for use with SLO feeds. Process variables such as feed composition, temperature, pressure and contact time were investigated. Emphasis was placed on the determination of feed-catalyst compatibility; the development of a "working" …
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New axially chiral amine organocatalysts
… the synthesis and use of tertiary amine organocatalysts based on the now ubiquitous binaphthyl backbone. The tertiary amines synthesized were shown to be effective nitrogen transfer reagents in the asymmetric aziridination of chalcone substrates, with enantiomeric excesses of up to 37% seen. …
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Nanosized iron crystallites for Fischer-Tropsch synthesis
… are cobalt and iron. In this work iron-based catalysts were studied. To ensure maximum metal utilisation and therefore a high weight specific catalytic activity, the metal crystallites should possess large specific surface areas and that is only achievable with small metal crystallites. …
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A COLLABORATIVE APPROACH TO MATERIALS DISCOVERY FOR WATER SPLITTING PHOTOCATALYSTS AND LITHIUM SULFUR REDOX.
… provided that stable and inexpensive photocatalysts with conversion efficiencies over 10% can be discovered, synthesized at scale, and successfully deployed. Starting with 70,150 compounds in the Materials Project database, the proposed protocol yielded 71 candidate photocatalysts, 11 of …
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Ageing Mechanisms in Automotive Catalysts
… and on-engine ageing, laboratory ageing and testing methods are becoming increasingly important, as well as mathematical catalyst simulation models. With the regulations concerning automotive emissions becoming more and more stringent it is important that these laboratory methods are …
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Gas phase heterogeneous catalyst performance testing in laboratory fixed-bed reactors
… among the key factors of the performance of a catalyst. In the development of catalysts these properties are often screened for a range of materials and formulations. Interpretation of these key performance indicators are prone to various confounding effects. Here, performance testing of solid, …
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Dry reforming of associated natural gas using catalytic membrane reactors.
… reactants, product selectivity and distribution, catalyst selection and activity. Interpretation of the reaction mechanism and kinetics of this important reaction are also presented. Previous experimental research has been centered on the reactor development, catalyst impregnation and the feasible …