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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la801350h
|2 doi
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|a eng
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|a Ottiger, Stefan
|e verfasserin
|4 aut
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|a Measuring and modeling the competitive adsorption of CO2, CH4, and N2 on a dry coal
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 13.11.2008
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|a Date Revised 29.08.2008
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Data on the adsorption behavior of CO 2, CH 4, and N 2 on coal are needed to develop enhanced coalbed methane (ECBM) recovery processes, a technology where the recovery of CH 4 is enhanced by injection of a gas stream consisting of either pure CO 2, pure N 2, or a mixture of both. The pure, binary, and ternary adsorption of these gases on a dry coal from the Sulcis Coal Province in Italy has been measured at pressures up to 180 bar and temperatures of 45 and 70 degrees C for the pure gases and of 45 degrees C for the mixtures. The experiments were performed in a system consisting of a magnetic suspension balance using a gravimetric-chromatographic technique. The excess adsorption isotherms are successfully described using a lattice density functional theory model based on the Ono-Kondo equations exploiting information about the structure of the coal, the adsorbed gases, and the interaction between them. The results clearly show preferential adsorption of CO 2 over CH 4 and N 2, which therefore indicate that ECBM may be a viable option for the permanent storage of CO 2
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|a Journal Article
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|a Pini, Ronny
|e verfasserin
|4 aut
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|a Storti, Giuseppe
|e verfasserin
|4 aut
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|a Mazzotti, Marco
|e verfasserin
|4 aut
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773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 24(2008), 17 vom: 02. Sept., Seite 9531-40
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|x 1520-5827
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|g volume:24
|g year:2008
|g number:17
|g day:02
|g month:09
|g pages:9531-40
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