Page 293 - Principles of Catalyst Development
P. 293
284 INDEX
Lobes Monolayer (conI.)
manufacture uf, 128 formation on metals, 163
pressure drop with, 10 of hydrogen in Ni/Si0 2 , 163
Localized bond theory, 56 Monolith,123
Monomer, 240
Macropores, 10 11.100,
Mass transfer coefficient, 12 dispersion by P, 39
Mass transfer factor, 11,13 in hydrodesulfurization catalysts, 38
Mass transfer limited reaction, 15. 240 loss during regeneration, 193
Mechanical strength Mordenite, structure of, 77
of catalyst particles, 9. 21, 143 Motor octane number (MON), 240
effect of preparation on, 105
importance of. 33, 131 Naphtha, 240
loss in steam reforming. 192 Naphthenes, 241
measurement of, 143 Natural ga, liquids (NGL). 241
Mechanisms, in catalyst design, 88 Neutron diffraction, 138
Mesoporcs, 9, II Ni/AI 20,
measurement of, 152 catalyst structure of, 32, 121
Metals concentration effects, 30, 31
alkali, 50 for naphtha refornling, 20
alloys, 193 NiIAI 20 4 ] formation in, 111,117
catalytic activity of, 26, 50, 62 recipe for, 261
cluster compounds, 63 surface areas of. 32
gauzes, 123 NiIAI 20 4 ]
poisoning of, 205 formation of, II J, 117
porous, 121 preparation of. 107
porphorins, 220 Nickel
rare earth. 50 ethylene adsorption on, 52, 58
transition. 50 hydrogen adsorption on, 58
Metathesis, 240 loss during mcthanation, 193
Methanation, 240 nucleation of, I 18
catalyst stability in, 25 porphorin contamination, 219
loss of nickel, 193 reactions catalyzed by, 62
reactors for, 25 in steam reforming, 24
role of nickel, 25 NiOI A1 20 3 , preparation of. 106
temperature profiles in, 203 Ni/Si0 2
Methane, oxidation of, 85 crystallite size distributions in, 196
Methanol, aromatic formation from, 81 hydrogen chemisorption on, 164
Methanol synthesis Nitrogen, poisoning of acids, 208
by metals, 50 N20 decomposition
steam reforming in, 25 activity patterns for, 68
Micropores, 9 by semiconductors, 65
Mid-boiling point, 240 Nucleation, in precipitation, 97
Middle distillate, 240
Modeling Olefin alkylation, 7
of deactivation, 188 Orbitals, surface geometry of, 57
of pilot units, 47 Osmium, reactions catalyzed by, 62
Monocycloparaffins, 240 Overlayers, 186
Monolayer Oxidation, 241, 255
determination of, 147 by metals, 27, 50
