Experimental Adsorption Isotherm of Methane onto Activated Carbon at Sub- and Supercritical Temperatures
AuthorsRahman, Kazi Afzalur
Loh, Wai Soong
Saha, Bidyut Baran
Chun, Won Gee
Ng, Kim Choon
KAUST Grant NumberR265-000-286-597
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AbstractThis paper presents the experimentally measured adsorption isotherm data for methane onto the pitch-based activated carbon type Maxsorb III for temperatures ranging from (120 to 220) K and pressures up to 1.4 MPa. These data are useful to study adsorbed natural gas (ANG) storage systems when the low temperature natural gas regasified from the liquid phase is considered to charge in the storage chamber. Adsorption parameters were evaluated from the isotherm data using the Tóth and Dubinin-Astakhov models. The isosteric heat of adsorption, which is concentration- and temperature-dependent, is extracted from the data. The Henry's law coefficients for the methane/Maxsorb III pairs are evaluated at various temperatures. © 2010 American Chemical Society.
CitationRahman KA, Loh WS, Yanagi H, Chakraborty A, Saha BB, et al. (2010) Experimental Adsorption Isotherm of Methane onto Activated Carbon at Sub- and Supercritical Temperatures. J Chem Eng Data 55: 4961–4967. Available: http://dx.doi.org/10.1021/je1005328.
SponsorsReceived for review May 21, 2010. Accepted September 3, 2010. The authors wish to express their gratitude for financial support from (i) the WCU program No. R-33-2009-000-10101660 of Korea, (ii) the AStar Grant No. R265-000-268-305/490, and (iii) the KAUST Grant R265-000-286-597.
PublisherAmerican Chemical Society (ACS)