Page 424 - Adsorbents fundamentals and applications

SUBJECT INDEX 409

applications of, 266–269 Resins (see polymeric resins), 264–273
aromatic surfaces of, 267 comparison with activated carbon, 269–271
comparison with activated carbon, 269–271 Reverse-phase chromatography, 142
demineralization by, 269
for water treatment, 265–267
SAPO 4 , 169–171
functional groups on, 264
kinetic separation or sieving by, 170–172
gas-phase applications, 271 Selective surface flow membrane, 121, 122
ion exchange by resins, 269 Silane-grafted silicas, 141–146
mechanism of sorption in, 271 adsorption on, 143–146
pore structure, 266 Silanes, 142
surface properties of, 266–268 Silanol groups (Si-O-H), 132, 134–137
Polymerization of silicic acid, 132 effect on adsorption, 136
Polystyrene as resin, 264 infrared vibrational frequencies of, 135–138,
cross-linked with DVB, 264 143
Pore geometry, effect on adsorption, 13 Silanol number, 135–137
Pore size distribution (PSD), 54–76 as a function of temperature, 137
Gamma type PSD, 75 Silica gel, 131–138
IUPAC classification of pores, 54 amine-grafted silicas, 141–146
of activated alumina, 80 chemical/surface modifications of, 141
of molecular sieve carbon, 80 dehydroxylation of, 136, 137
of MCM-41
effect of hydroxyl groups on adsorption, 136
of silica gel, 80
effect of pH in formation of, 132, 133
of VPI-5, 73
heats of adsorption of water on, 135
of ZSM-5, 71
infrared vibrational frequencies of hydroxyls,
Pore size, effect on adsorption, 13
135–138, 143
of zeolites, 162
pore size distribution of, 133
Potable water treatment, 93
preparation of, 131–133
Potential energy for adsorption, 8–12 silanation of, 141–146
Potential theory isotherms, 20 sol-gel process for preparing, 132
for mixtures, 21 surface chemistry of, 134
Pressure equalization, 34 surface silanols, 134
Pressure ratio in PSA for air separation, 288 water adsorption isotherm on, 134, 138
Pressure swing adsorption (PSA), 30–40 Silicalite, 168
for air separation, 280–296 Siloxane, 132
for olefin-paraffin separations, 219 Simulated moving-bed sorbents, 222
multiple steady states in, 333 Six-member oxygen rings in zeolite, 174
PSA separation of CO, 216 Skarstrom cycle, 31
power consumption for air separation, 296 analytical solution for, 38
radial-bed PSA, 37 Sodalite cage, 177
simultaneous purification and sorbate Sol-gel processing, 132
recovery by, 36 Solubility of metals in carbon, 235
Pretreatment beds, 35 diffusivities of metals in carbon, 235
Propane/propylene separation (see Sorbent design, 12
olefin/paraffin separations) fundamental factors in, 12
PSA reactor, 37 Sorbent selection (parameters), 17
Purge by strong adsorptive, 36 for kinetic separation, 47
Purification, 18 simple criteria for, 41
Purification by π-complexation sorbents, 223
Sorbent selection parameter, 41–48,
for air separation, 283, 289
Quadrupole moment, 10 Spontaneous thermal dispersion, 193, 194
effect on adsorption, 11, 185 Stability of π-complexation sorbents, 217
Steric separation by exclusion, 2, 18
Radial-bed pressure swing adsorption, 37 Structure directing agent in zeolite synthesis,
Repulsion interaction, 9 165