Search Results - "Moodley, D.J."

Ostwald ripening on a planar Co/SiO2 catalyst exposed to model Fischer–Tropsch synthesis conditions by Kistamurthy, D., Saib, A.M., Moodley, D.J., Niemantsverdriet, J.W., Weststrate, C.J.

“…[Display omitted] •Cobalt on model silica support is exposed to Fischer–Tropsch synthesis conditions.•Ostwald ripening is proposed to be the dominant sintering…”
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In situ magnetometer study on the formation and stability of cobalt carbide in Fischer-Tropsch synthesis by CLAEYS, M, DRY, M. E, VAN STEEN, E, DU PLESSIS, E, VAN BERGE, P. J, SAIB, A. M, MOODLEY, D. J

“…* Cobalt carbide (Co2C) was monitored using novel in situ magnetometer. * The formation of cobalt carbide was confirmed by means of in situ XRD and synchrotron…”
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The impact of cobalt aluminate formation on the deactivation of cobalt-based Fischer–Tropsch synthesis catalysts by Moodley, D.J., Saib, A.M., van de Loosdrecht, J., Welker-Nieuwoudt, C.A., Sigwebela, B.H., Niemantsverdriet, J.W.

“…It has been reported that cobalt aluminate formation is a cause of deactivation during Fischer–Tropsch synthesis (FTS), as it forms at the expense of active…”
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Carbon deposition as a deactivation mechanism of cobalt-based Fischer–Tropsch synthesis catalysts under realistic conditions by Moodley, D.J., van de Loosdrecht, J., Saib, A.M., Overett, M.J., Datye, A.K., Niemantsverdriet, J.W.

“…In this study, the formation of carbon deposits on samples of a Co/Pt/Al 2O 3 catalyst, taken from a 100-barrel/day slurry bubble column reactor operated over…”
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The role of carboxylic acid in cobalt Fischer-Tropsch synthesis catalyst deactivation by Kistamurthy, D., Saib, A.M., Moodley, D.J., Preston, H., Ciobîcă, I.M., van Rensburg, W. Janse, Niemantsverdriet, J.W., Weststrate, C.J.

“…•Acid does not enhance Co/Pt/Al2O3 Fischer-Tropsch synthesis catalyst deactivation.•Co/Pt/Al2O3 catalyst exposed to acetic acid results in atomic carbon…”
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Fundamental issues on practical Fischer-Tropsch catalysts: How surface science can help by WESTSTRATE, C. J, CIOBICA, I. M, SAIB, A. M, MOODLEY, D. J, NIEMANTSVERDRIET, J. W

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Clonal structure and recruitment in British wild cherry ( Prunus avium L.) by Vaughan, S.P., Cottrell, J.E., Moodley, D.J., Connolly, T., Russell, K.

“…The extent of clonal reproduction may significantly influence the genetic structure and reproductive ability of wild cherry ( Prunus avium L.) populations. In…”
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Coke formation on WO3/SiO2 metathesis catalysts by MOODLEY, D. J, VAN SCHALKWYK, C, SPAMER, A, BOTHA, J. M, DATYE, A. K

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Application of a WO3/SiO2 catalyst in an industrial environment: Part II by SPAMER, A, DUBE, T. I, MOODLEY, D. J, VAN SCHALKWYK, C, BOTHA, J. M

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Factors that could influence the activity of a WO3/SiO2 catalyst: Part III by VAN SCHALKWYK, C, SPAMER, A, MOODLEY, D. J, DUBE, T, REYNHARDT, J, BOTHA, J. M, VOSLOO, H. C. M

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Application of water-tolerant Co/β-SiC catalysts in slurry phase Fischer–Tropsch synthesis by Labuschagne, J., Meyer, R., Chonco, Z.H., Botha, J.M., Moodley, D.J.

“…[Display omitted] •A review of the existing literature for cobalt supported on β-SiC in FTS.•Show aspects of our in-house work on water tolerant catalysts for…”
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Fundamental understanding of deactivation and regeneration of cobalt Fischer–Tropsch synthesis catalysts by Saib, A.M., Moodley, D.J., Ciobîcă, I.M., Hauman, M.M., Sigwebela, B.H., Weststrate, C.J., Niemantsverdriet, J.W., van de Loosdrecht, J.

“…Cobalt-based Fischer–Tropsch synthesis (FTS) catalysts are an integral part of the gas-to-liquid (GTL) process. Due to the cost of both cobalt and noble…”
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Insitu magnetometer study on the formation and stability of cobalt carbide in Fischer–Tropsch synthesis by Claeys, M., Dry, M.E., van Steen, E., du Plessis, E., van Berge, P.J., Saib, A.M., Moodley, D.J.

“…•Cobalt carbide (Co2C) was monitored using novel in situ magnetometer.•The formation of cobalt carbide was confirmed by means of in situ XRD and synchrotron…”
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Contemporary pollen flow, characterization of the maternal ecological neighbourhood and mating patterns in wild cherry (Prunus avium L.) by Cottrell, J.E, Vaughan, S.P, Connolly, T, Sing, L, Moodley, D.J, Russell, K

“…Conversion of lowland woodland to agricultural land and resulting fragmentation in Britain has been ongoing since Neolithic times. To counteract this decline,…”
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The reduction of isomerisation activity on a WO3/SiO2 metathesis catalyst by SPAMER, A, DUBE, T. I, MOODLEY, D. J, VAN SCHALKWYK, C, BOTHA, J. M

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Distribution and fine-scale spatial-genetic structure in British wild cherry (Prunus avium L.) by Vaughan, S.P, Cottrell, J.E, Moodley, D.J, Connolly, T, Russell, K

“…Insights into the within-population spatial-genetic structure (SGS) of forest tree species, where little is known regarding seed and pollen dispersal patterns,…”
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Coke formation on WO 3/SiO 2 metathesis catalysts by Moodley, D.J., van Schalkwyk, C., Spamer, A., Botha, J.M., Datye, A.K.

“…An appreciable amount of coke (49 wt%) forms over an 8 wt% WO 3/SiO 2 catalyst during the metathesis of 1-alkenes to internal alkenes. Catalyst activity is…”
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Application of a WO3/SiO2 catalyst in an industrial environment: part I by VAN SCHALKWYK, C, SPAMER, A, MOODLEY, D. J, DUBE, T, REYNHARDT, J, BOTHA, J. M

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Factors that could influence the activity of a WO 3/SiO 2 catalyst: Part III by van Schalkwyk, C., Spamer, A., Moodley, D.J., Dube, T., Reynhardt, J., Botha, J.M., Vosloo, H.C.M.

“…An 8% WO 3/SiO 2 catalyst was used for a metathesis reaction of 1-octene in the presence of different additives. These additives represents the possible…”
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Application of a WO 3/SiO 2 catalyst in an industrial environment: part II by Spamer, A., Dube, T.I., Moodley, D.J., van Schalkwyk, C., Botha, J.M.

“…During investigations into the activity of the 8% WO 3/SiO 2 catalyst it was observed that the selectivity and online lifetime of the catalyst improved, while…”
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