Complex sorption kinetics of carbon dioxide in NaX-zeolite crystals

被引：13
|
作者：
Bülow, M [1 ]
机构：
[1] BOC Proc Plants Technol, Murray Hill, NJ 07974 USA
来源：
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY | 2002年 / 8卷 / 01期
关键词：
NaX and BaKX zeolites; carbon dioxide; sorption kinetics; complex rate mechanism; IR spectroscopy; chemisorption;
D O I：
10.1023/A:1015210205270
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ad-/desorption-kinetic measurements were performed for carbon dioxide on a mono-disperse crystal sample of NaX-type zeolite (mean crystal diameter: 2R congruent to (100 +/- 6) mum) by a constant-volume-variable-pressure method in a "differential" concentration mode over ranges of temperature, (193-293) K, and pressure, (20-26,700) Pa. They revealed a complex sorption process in sorbate uptake and release during experiments of ad- and desorption, respectively, which is comprised of a slow, hitherto unknown rate mechanism superimposed on very fast intracrystalline diffusion of carbon dioxide. IR-spectroscopic data that evidence formation of chemisorption species in CO2-NaX sorption systems may allow for a tentative interpretation of this finding. Circumstantial evidence for the correctness of this conclusion follows from sorption-kinetic experiments for carbon dioxide on BaKX-type zeolite crystals (mean crystal diameter: 2R congruent to (120 +/- 6) mum).
引用
收藏
页码：9 / 14
页数：6
相关论文
共 50 条
  • [1] Complex Sorption Kinetics of Carbon Dioxide in NaX-Zeolite Crystals
    Martin Bülow
    Adsorption, 2002, 8 : 9 - 14
  • [2] SORPTION THERMODYNAMICS - THE ADSORPTION OF BINARY-MIXTURES OF HYDROCARBON VAPORS ON NAX-ZEOLITE
    TRUBNIKOV, IB
    TOLMACHEV, AM
    ZHURNAL FIZICHESKOI KHIMII, 1982, 56 (01): : 189 - 190
  • [3] THERMODYNAMICS OF BENZOL ADSORPTION ON NAX-ZEOLITE
    THAMM, H
    BLANK, H
    BULOW, M
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-LEIPZIG, 1975, 256 (02): : 395 - 400
  • [4] NA-23-SPIN-RELAXATION AN DEHYDRATED NAX-ZEOLITE
    HUNGER, M
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-LEIPZIG, 1985, 266 (01): : 135 - 142
  • [5] INTRACRYSTALLINE DIFFUSION OF BENZENE IN NAX ZEOLITE STUDIED BY SORPTION KINETICS
    BULOW, M
    MIETK, W
    STRUVE, P
    LORENZ, P
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1983, 79 : 2457 - 2466
  • [6] EXPERIMENTAL-EVIDENCE OF THE INFLUENCE OF SORPTION-HEAT RELEASE PROCESSES ON THE SORPTION KINETICS OF BENZENE IN NAX ZEOLITE CRYSTALS
    BULOW, M
    STRUVE, P
    MIETK, W
    KOCIRIK, M
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1984, 80 : 813 - 822
  • [7] PROTON MAGNETIC-RELAXATION OF DMDO ADSORBED ON NAX-ZEOLITE
    HUNGER, M
    PEREZ, ALD
    MARTINEZDALESSANDRO, A
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-LEIPZIG, 1990, 271 (05): : 1009 - 1013
  • [8] NaX-zeolite coatings on highly porous metal fibre substrates
    Fankhaenel, Beate
    Mueller, Eberhard
    Tomandl, Gerhard
    MICROPOROUS AND MESOPOROUS MATERIALS, 2009, 118 (1-3) : 416 - 422
  • [9] SORPTION KINETICS OF CYCLOHEXANE ON BINDER-FREE NAX ZEOLITE COMPACTS
    ZIKANOVA, A
    KOCIRIK, M
    BULOW, M
    KARGER, J
    VARHANIKOVA, A
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-LEIPZIG, 1979, 260 (06): : 1089 - 1096
  • [10] NUMERICAL-MODELS OF MOLECULAR SELF-DIFFUSION IN NAX-ZEOLITE CRYSTALS .1. COMPUTATION OF THE POTENTIAL RELIEF AND THE THERMODYNAMIC CHARACTERISTICS FOR THE SORPTION OF CYCLOHEXANE AND METHANE IN A LARGE CAVITY OF NAX-ZEOLITES
    BEZUS, AG
    KOCIRIK, M
    THAMM, H
    BULOW, M
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-LEIPZIG, 1981, 262 (01): : 1 - 10
12345