Zobrazeno 1 - 10
of 63
pro vyhledávání: '"John M. Winterbottom"'
Autor:
Robert P. Fishwick, John M. Winterbottom, James A. Bennett, Joseph Wood, Ron R. Spence, E.H. Stitt, S.D. Jackson
Publikováno v:
Applied Catalysis A: General. 364:57-64
Hydrogenation of 2-pentyne over 1 wt.% Pd/Al 2 O 3 was studied in a 2.65 L baffled stirred vessel. The effects of stirring speed, hydrogen pressure, concentration of substrate, catalyst loading, solvent selection and catalyst preparation method upon
Publikováno v:
Catalysis Today. 130:471-485
The importance of the hydrodearomatisation (HDA) is increasing together with tightening legislation of fuel quality and exhaust emissions. The present study focuses on hydrogenation (HYD) kinetics of the model aromatic compound naphthalene, found in
Publikováno v:
Catalysis Today. 128:52-62
Preliminary characterisation studies are reported regarding a flow switching experiment combined with DRIFTS monitoring, which has been applied for the first time to the study of adsorption and hydrogenation of ethyne and ethene over: (1) a 0.02 wt.%
Publikováno v:
Catalysis Today. 128:63-73
Nickel (Ni) and nickel molybdate (NiMo) supported on alumina (Al2O3) catalysts, both in a presulphided and prereduced forms, were investigated for the hydrogenation (HYD) of naphthalene. The deactivation of the catalysts with time on stream and sulph
Autor:
Joseph Wood, Binjie Hu, Andrzej W. Pacek, Robert P. Fishwick, John M. Winterbottom, E.H. Stitt, Alvin W. Nienow
Publikováno v:
Chemical Engineering Science. 62:5392-5396
The effect of solvent composition (water, 2-propanol and mixtures of the two) on the three phase, heterogeneously catalysed, two-step hydrogenation of 2-butyne-1,4-diol on Pd/alumina was investigated in a stirred reactor and for the first time, bubbl
Publikováno v:
Fuel. 86:1304-1312
Selectivity and kinetic studies of the Pd-catalysed hydrogenation of 2-butyne-1,4-diol were performed in a single capillary channel, and monoliths consisting of 1256 capillaries and 5026 capillaries in (I) the pressure range 100-300 kPa (II) the temp
Autor:
John M. Winterbottom, S. P. Hill
Publikováno v:
Journal of Chemical Technology & Biotechnology. 41:135-144
The aqueous phase decomposition of formaldehyde, to hydrogen gas, catalysed by platinum—copper chromite, has been carried out in the temperature range 20–60°C, at a solution pH of 12. The production of hydrogen was favoured by intermediate tempe
Autor:
Chun‐Shun Chung, John M. Winterbottom
Publikováno v:
Journal of Chemical Technology & Biotechnology. 38:15-30
Nickel catalysts have been prepared by impregnation and precipitation methods on silica and charcoal. Metal loadings were in the range 1–40% w/w Ni on the support. The catalysts were investigated by temperature programmed reduction (TPR) and subseq
Autor:
John M. Winterbottom, S. P. Hill
Publikováno v:
Journal of Chemical Technology & Biotechnology. 41:121-133
The palladium catalysed decomposition, to H2+CO2, of solutions containing formic acid and sodium formate, in various proportions, has been studied in a stirred reactor in the temperature range 60–90°C. The production of hydrogen gas was at its opt
Publikováno v:
Journal of Chemical Technology & Biotechnology. 52:571-585
Pd-23 at% Ag and Pd-7.8 at% Y hydrogen-diffusion membranes were (1) prepared by argon-arc melting of the constituent elements, (2) characterised, (3) examined for hydrogen permeation and (4) used as catalysts in ethylene hydrogenation reactions. Ethy