Zobrazeno 1 - 10
of 177
pro vyhledávání: '"David L. Trimm"'
Publikováno v:
Catalysis Today. 178:79-84
The effect of alumina support source as well as preparation method on the methanation activity of cobalt catalysts promoted with lanthanum and ruthenium was investigated. The catalysts were prepared by incipient wetness impregnation using either an a
Publikováno v:
Catalysis Today. 164:297-301
The influence of catalyst activation conditions and the presence of promoters (La, Ru) on the performance of γ-alumina-supported Co catalysts for the methanation reaction has been investigated. Physicochemical properties, Co crystallite size and the
Publikováno v:
International Journal of Hydrogen Energy. 35:8953-8961
The generation of essentially pure hydrogen through a redox cycle using methane and then water has been investigated for a series of tungsten oxides stabilised by ceria–zirconia. The calcined starting materials were largely monoclinic WO3 with CeO2
Publikováno v:
Journal of Chemical Technology and Biotechnology. Chemical Technology. 35:358-364
Coke formation by steam cracking of propane over preoxidised and prereduced alloy foils has been studied in a tubular reactor at 810–850°C. Coke formation on preoxidised steel involves coke formation on the oxide scale which is low and coke format
Autor:
Christopher J. Turner, David L. Trimm
Publikováno v:
Journal of Chemical Technology and Biotechnology. 31:285-289
Hydrogen sulphide has been found to have a significant effect on the rate of carbon formation during the pyrolysis of propane. Studies have been carried out to measure carbon formation on pre-sulphided foils of nickel, copper, iron and stainless stee
Publikováno v:
Journal of Chemical Technology and Biotechnology. 31:311-316
Studies have been carried out on the effect of pre-sulphiding a nickel-chromium-iron alloy on coke formation under steam cracking conditions. Pre-sulphiding has no great effect on the gaseous product spectrum as long as some sulphur is present, but t
Autor:
David L. Trimm, C. J. Turner
Publikováno v:
Journal of Chemical Technology and Biotechnology. 31:195-204
Studies have been carried out on the formation of gases, tars and carbon from the pyrolysis of propane under conditions pertinent to steam cracking. Careful analysis has been carried out to relate the production of gases, liquids and solids in the pr
Publikováno v:
Journal of Chemical Technology & Biotechnology. 56:241-245
The preparation of magnesia has been investigated with the object of preparing a catalyst support material that maintained high surface area after heating to high temperatures. The effect of precipitation, ageing, washing, drying and calcining on the
Publikováno v:
Journal of Chemical Technology & Biotechnology. 50:493-506
Studies have been carried out on the influence of preparation parameters on the activity of nickel-tungsten (Ni-W) catalysts, used to promote the hydrotreatment of model compounds representative of nitrogen, sulphur, oxygen and aromatic containing co
Publikováno v:
Journal of Chemical Technology & Biotechnology. 47:143-149
Nickel–tungsten-based hydrotreating catalysts have been prepared with different metals impregnation profiles and tested for the hydrodesulphurisation, hydrodenitrogenation and hydrogenation of model compounds. Penetration of the catalyst by the mod