caa a22 4500 463170121 CHVBK 20180406164810.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10450-007-9033-5 doi (NATIONALLICENCE)springer-10.1007/s10450-007-9033-5 Water adsorption with hysteresis effect onto microporous activated carbon fabrics [Elektronische Daten] [Patrick Sullivan, Brenton Stone, Zaher Hashisho, Mark Rood] Understanding the adsorption of water vapor onto activated carbons is important for designing processes to remove dilute contaminants from humid gas streams, such as providing protection against chemical warfare agents (CWAs), or against toxic industrial compounds (TICs) used in a terrorist chemical attack. Water vapor isotherms for Calgon BPL granular activated carbon (GAC), military ASZM-TEDA GAC, electrospun activated carbon nanofibers (ACnF), Calgon Zorflex™ activated carbon cloth, and Novoloid-based activated carbon fiber cloth (ACFC) are presented. Of particular interest are the ACFC isotherms, which exhibit an unusually high degree of hydrophobicity. The ACFC isotherms also show a correlation between water vapor adsorption hysteresis and the level of activation. Water vapor isotherm models from the literature are compared. Springer Science+Business Media, LLC, 2007 Activated Carbon Fiber Cloth (ACFC) nationallicence Water vapor adsorption nationallicence Hysteresis nationallicence Isotherm models nationallicence A : Distribution constant for Mahle equation nationallicence a : Amount adsorbed at a given p r nationallicence a c : Constant for DS4 equation nationallicence a f : Capacity of functional site part of Do & Do type equations nationallicence a I : Capacity of type I term of Stoeckli formula, or capacity of Ising term in Extended CMMS equation nationallicence a L : Capacity of Langmuir term of Extended CMMS formula nationallicence a m : Capacity constant in Talu-Meunier equation nationallicence a o : Pore capacity nationallicence a p : Concentration of primary sites nationallicence a V : Capacity of type V term in Stoeckli equation nationallicence a μ : Capacity of microporous part of Do & Do type equations nationallicence B : Distribution constant for Mahle equation nationallicence c : Henry's Law coefficient for DS equations nationallicence E o : Reference energy nationallicence H : Proportionality constant in Talu-Meunier equation nationallicence K : Constant for Lagorsse equation nationallicence K a : Langumuir-type constant for adsorption part of Lagorsse equation nationallicence K as : Shape constant for CMMS equation nationallicence K d : Langmuir-type constant for desorption part of Lagorsse equation nationallicence K f : Langmuir-type constant for functional site part of Do & Do type equations nationallicence K μ : Langmuir type constant for microporous part of Do & Do type equations nationallicence k : Constant for QHR equation nationallicence k o : Langmuir-type constant for CMMS equations nationallicence k 1 : Constant for CMMS equations nationallicence k L : Langmuir constant nationallicence k t : Constant in Talu-Meunier equation nationallicence N : Number of terms to sum nationallicence n : Dubinin-Astakhov exponent nationallicence n I , n V : Stoeckli exponents nationallicence p 50 : Relative pressure at 50% of a o adsorbed nationallicence p r : Relative pressure of water (relative humidity) nationallicence R g : Universal gas constant nationallicence T : Temperature nationallicence β : Energy coefficient of an adsorbate-adsorbent system (β E o =E, the affinity energy of the system) nationallicence β I , β V : Energy coefficient of each term in the Stoeckli formula nationallicence κ : Fitting parameter for Dubinin-Serpinsky type equations nationallicence ξ i : Fitting parameters for LeVan equation nationallicence Sullivan Patrick Airbase Technologies Division, Air Force Research Laboratory, 139 Barnes Dr Ste 2, 32403, Tyndall AFB, FL, USA aut Stone Brenton Airbase Technologies Division, Air Force Research Laboratory, 139 Barnes Dr Ste 2, 32403, Tyndall AFB, FL, USA aut Hashisho Zaher Department of Civil & Environmental Engineering, University of Illinois, 61801, Urbana, IL, USA aut Rood Mark Department of Civil & Environmental Engineering, University of Illinois, 61801, Urbana, IL, USA aut Adsorption Springer US; http://www.springer-ny.com 13/3-4(2007-08-01), 173-189 0929-5607 13:3-4<173 2007 13 10450 https://doi.org/10.1007/s10450-007-9033-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10450-007-9033-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sullivan Patrick Airbase Technologies Division, Air Force Research Laboratory, 139 Barnes Dr Ste 2, 32403, Tyndall AFB, FL, USA aut NATIONALLICENCE 700 1- Stone Brenton Airbase Technologies Division, Air Force Research Laboratory, 139 Barnes Dr Ste 2, 32403, Tyndall AFB, FL, USA aut NATIONALLICENCE 700 1- Hashisho Zaher Department of Civil & Environmental Engineering, University of Illinois, 61801, Urbana, IL, USA aut NATIONALLICENCE 700 1- Rood Mark Department of Civil & Environmental Engineering, University of Illinois, 61801, Urbana, IL, USA aut NATIONALLICENCE 773 0- Adsorption Springer US; http://www.springer-ny.com 13/3-4(2007-08-01), 173-189 0929-5607 13:3-4<173 2007 13 10450 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer