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Formulation of activated carbons and evaluation of methane storage by compression and adsorption
Author(s) -
Sales D. C. S.,
Martins R. G.,
Jaguaribe E. F.,
Abreu C. A. M.
Publication year - 2012
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20564
Subject(s) - adsorption , activated carbon , methane , materials science , chemical engineering , hydrogen storage , natural gas , chemistry , composite material , organic chemistry , engineering , alloy
Activated carbons were produced from coconut shells by chemical activation using H 3 PO 4 (CAQ1) and ZnCl 2 (CAQ2), and used as adsorbents for natural gas storage. CAQ1 presented a wider pore size distribution than CAQ2. Storage evaluations were made in a semi‐pilot unit (0.5–4.0 MPa and 298–313 K). According to the used reactant, at 313 K and 3.0 MPa, the adsorptive capacities were 0.060 g/g (CAQ2) and 0.092 g/g (CAQ1). The shortest storage time to charge the tank to 4.0 MPa was obtained by CAQ2 (3.1 min), compared to CAQ1 (3.4 min), due to its higher specific heat capacity. © 2011 Canadian Society for Chemical Engineering