| 2021 |
Yan P, Mensah J, Drewery M, Kennedy E, Maschmeyer T, Stockenhuber M, 'Role of metal support during ru-catalysed hydrodeoxygenation of biocrude oil', Applied Catalysis B: Environmental, 281 (2021) [C1]
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Nova |
| 2021 |
Mensah J, Yan P, Kennedy E, Drewery M, Stockenhuber M, 'Novel hierarchical core-shell BEA@NanoZSM-5 zeolite for improved cracking performance for 1,3,5-triisopropylbenzene and n-hexadecane', Microporous and Mesoporous Materials, 328 (2021) [C1]
To overcome diffusional limitations associated with the catalytic cracking of large hydrocarbons, a novel core-shell hierarchical zeolite has been developed and evaluated. Large, ... [more] To overcome diffusional limitations associated with the catalytic cracking of large hydrocarbons, a novel core-shell hierarchical zeolite has been developed and evaluated. Large, branched hydrocarbons encounter diffusional limitations in micropores of zeolites for cracking reactions, a limitation overcome by improved textural properties of hierarchical zeolites, leading to enhanced cracking activity. This will result in an improvement in deactivation rate, cracking activity, and enhanced product selectivity towards light hydrocarbon products. The impact of chain length involving a long chain paraffin (hexadecane) and a highly branched aromatic (1,3,5-TIPB) was also investigated to study the influence of the presence of the micro-mesopore network in overcoming diffusion limitations. This paper investigates the use of hierarchical core-shell BEA@NanoZSM-5 in the catalytic cracking of 1,3,5 triisopropylbenzene (1,3,5-TIPB), and n-hexadecane (C16). The novel hierarchical composite was synthesized by preliminary seeding of the core BEA crystals and subsequent growth under hydrothermal conditions leading to the formation of an intergrown and distinctive nanocrystalline ZSM-5 shell zeolite. Evidence of the existence of a hierarchical structure was probed by Ar sorption utilising non-local density functional theory (NLDFT) pore size distribution analysis.
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Nova |
| 2020 |
Jalalabadi T, Drewery M, Tremain P, Wilkinson J, Moghtaderi B, Allen J, 'The impact of carbonate salts on char formation and gas evolution during the slow pyrolysis of biomass, cellulose, and lignin', SUSTAINABLE ENERGY & FUELS, 4 5987-6003 (2020) [C1]
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Nova |
| 2020 |
Shadravan V, Bukas VJ, Gunasooriya GTKK, Waleson J, Drewery M, Karibika J, et al., 'Effect of Manganese on the Selective Catalytic Hydrogenation of CO
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Nova |
| 2020 |
Khan NA, Ahmed M, Syed NUH, Drewery M, 'Effect of Ca(OH)(2) and Heat Treatment on The Physico-Chemical Properties of Bovine Bone Powder; a Material Useful for Medical, Catalytic, and Environmental Applications', MATERIALS SCIENCE-MEDZIAGOTYRA, 26 114-119 (2020) [C1]
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Nova |
| 2020 |
Yan P, Drewery M, Mensah J, Mackie JC, Kennedy E, Stockenhuber M, 'Study on Catalyst Deactivation During the Hydrodeoxygenation of Model Compounds', Topics in Catalysis, 63 778-792 (2020) [C1]
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Nova |
| 2020 |
Zhao G, Drewery M, Mackie J, Oliver T, Kennedy EM, Stockenhuber M, 'The Catalyzed Conversion of Methane to Value-Added Products', Energy Technology, 8 (2020) [C1]
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Nova |
| 2019 |
Drewery M, Harvey L, Bryant G, Kennedy EM, Stockenhuber M, 'Utilization of Glycerol and its Derivatives in a Nickel-Based SOFC', Energy Technology, 7 80-85 (2019) [C1]
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Nova |
| 2015 |
Drewery M, Kennedy E, Alenazey F, Dlugogorski B, Stockenhuber M, 'The effect of synthesis gas composition on the performance of Ni-based solid oxide fuel cells', Chemical Engineering Research and Design, 101 22-26 (2015) [C1]
An increased interest in using hydrocarbons in solid oxide fuel cells for the production of power has led to research into operation on synthesis (syn) gas, a mixture of hydrogen ... [more] An increased interest in using hydrocarbons in solid oxide fuel cells for the production of power has led to research into operation on synthesis (syn) gas, a mixture of hydrogen and carbon monoxide. Hydrocarbons are typically reformed, either internally or in an external reformer prior to the fuel cell, producing syngas with various H2:CO ratios depending on the hydrocarbon used. This paper examines the effect of varying the H2:CO ratio with respect to C1 to C4 steam reforming reactions and additionally a mixture containing a higher ratio of carbon monoxide. It was found that there was no significant relationship between cell performance and H2:CO ratio when a high feed rate was employed. For low flow rates, however, the high carbon monoxide concentration resulted in a significant decrease in cell performance. It was determined that this was caused by reversible carbon deposition as opposed to a decrease in carbon monoxide reactivity.
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Nova |
| 2014 |
Sánchez G, Friggieri J, Keast C, Drewery M, Dlugogorski BZ, Kennedy E, Stockenhuber M, 'The effect of catalyst modification on the conversion of glycerol to allyl alcohol', Applied Catalysis B: Environmental, 152-153 117-128 (2014) [C1]
Conversion of glycerol to allyl alcohol was carried out over an iron on alumina catalyst. With the aim of enhancing selectivity towards the desired product and to reduce acrolein ... [more] Conversion of glycerol to allyl alcohol was carried out over an iron on alumina catalyst. With the aim of enhancing selectivity towards the desired product and to reduce acrolein formation (a detrimental impurity in the subsequent epoxidation of allyl alcohol) the supported iron catalyst was modified using alkali metals. It was found that lithium, sodium, potassium, rubidium and caesium deposition on the catalyst surface increased allyl alcohol yield and reduced the rate of catalyst deactivation. Coincidently, acrolein selectivity decreased by up to 75% following treatment with the alkali salt.Changes in the product distribution were determined to be associated with altering the acid/base properties of the catalyst, as confirmed by isopropanol dehydration/dehydrogenation, ammonia and carbon dioxide temperature programmed desorption. The treatment was also found to influence the physical properties of the catalyst surface. A correlation between acid to basic site concentration and allyl alcohol selectivity was established. A reduction in the former value results in an enhancement in the rate of allyl alcohol formation. A reaction mechanism was developed based on the effect of iron and alkali metals catalysing the conversion of glycerol into allyl alcohol. The proposed catalyst modification technique is a straightforward method, readily applicable at a larger scale due to the simplicity of the alkali inclusion and its striking influence on the reaction selectivity. © 2014.
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