Experimental Adsorption Isotherm of Methane onto Activated Carbon at Sub- and Supercritical Temperatures

This 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...

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Published inJournal of chemical and engineering data Vol. 55; no. 11; pp. 4961 - 4967
Main Authors Rahman, Kazi Afzalur, Loh, Wai Soong, Yanagi, Hideharu, Chakraborty, Anutosh, Saha, Bidyut Baran, Chun, Won Gee, Ng, Kim Choon
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 11.11.2010
Subjects
Applied sciences
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
Prospecting and production of crude oil, natural gas, oil shales and tar sands
Methane
Storage
Activated carbon
Adsorbed state
Adsorption isotherm
Supercritical state
Subcriticality
Natural gas
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Summary:This 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.
ISSN:0021-9568
1520-5134
DOI:10.1021/je1005328