Page 294 - Principles of Catalyst Development

INDEX 285

Oxidation (cont.) Pilot units
of methane, 85 in catalyst manufacturing, 124
by oxides and sulfides, 27 testing with, 46
partial, 28 Platinum
Oxides anion adsorption, 113
as catalysts, 70 for automobile exhaust catalysis. 28
cemented, 122 for catalytic reforming. 28, 34
fused, 122 crystallite size effects, 30, 199
mixed, 122 Poisoning
preparation of dual, 106 agents. 201
as supports, 31 beneficial, 209
Oxychlorination, 241 with diffusion, 204
Oxydehydrogenation, 241 of metals, 205
Oxygenolysis, 241, 255 origin of, 200
of oxides, 207
titration, 202
Packed beds treatment of, 207
pressure drop in, 8 uniform. 201
uniform flow in, 8 Poison titration. 162, 166
Packing density, 142 Polymer, 241
Palladium, reactions catalyzed by, 62 Polymerization, 252
Paracrystallinity, 121 by insulators, 27
Partial oxidation, 241 Polynuclear aromatics, 241
of CH 4 , 85 Pores
Particle ink bottle, 218
density, 141 macro, 10
failure, 191 meso, 9
growth in precipitation, 99 micro, 9
size distri bution, 97, 142 origin of, 10
Passivation, of reduced metal catalysts, 120 Pore shape
Pattern of behavior determination of, 154
ammonia synthesis, 17 importance of, 9
CO oxidation, 91 Pore size distribution
cumene dealkylation, 75 bimodal, 39
dehydration, 69 importance of, 9
dehydrogenation, 69, 90 measurement of, 151
ethanol decomposition, 69 nomenclature for, 9
nitrous oxide decomposition, 68 origin of, 10
oxygen mobility, 89, 91 Pore structure, control of, 218
reduction, 91 Pore volume
Pellet density, 11,141 loss on drying, 103
Pellets, manufacture of, 127 nomenclature for, 11
Peptization, 102 Porosimetry, 151
Personnel. training in pilot units. 47 Porosity
Phosphorous nomenclature for, 11
-based zeolites, 82 particle, 13
promotion of hydrodesulfurization catalysts, in supports, 31
39 Potassium
Photocatalysis, by semiconductors, 68 in catalytic cracking, 214
Physical adsorption, 146 in hydrodesulfurization. 39