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Fundamentals of methane adsorption in microporous carbons
Microporous and Mesoporous Materials, 2009Abstract This paper analyzes from a fundamental point of view the adsorption of methane on microporous carbons. CH4 adsorption on a series of microporous activated carbons (AC), activated carbon fibers (ACF) and superactivated carbons (SAC), at 298 K and 4 MPa (supercritical conditions) is analyzed. These results are compared with those obtained from
J. Alcañiz-Monge +3 more
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Heats of adsorption of methane multilayers on graphite
Physical Review B, 1984Isosteric heats of adsorption of ${\mathrm{CH}}_{4}$ on exfoliated graphite (Grafoil) have been measured calorimetrically at 69.5, 77, 84.5, and 92.5 K up to surface coverages of the equivalent of 3.5 layers. At the lowest two temperatures, ${q}_{\mathrm{st}}$ varies rather little with the amount adsorbed beyond a monolayer.
J. Piper, J. A. Morrison
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Adsorption of methane, ethane, and ethylene on zeolite
Journal of Chemical & Engineering Data, 1995Adsorption isotherms at 283 and 303 K of methane, ethane, and ethylene on zeolite G5 have been obtained. Measurements have been made at pressures up to 1,200 kPa using an automated apparatus based on the volumetric method. This study is linked to a modeling interest because of the structure simplicity of the adsorbate molecules and because of the known
Karl Berlier +2 more
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The adsorption of methane on tungsten (100) and (111)
Surface Science, 1978Abstract The work function of methane adsorbed on a tungsten field emitter at temperatures ranging from 300 to 1000 K was examined with a probe hole microscope. Significant differences in behaviour were found on the (111) and (100) planes. On the former, φ111 increased with exposure up to a value of ~2000 L (1 L = 1 × 10−6 Torr sec) beyond which ...
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Thermodynamics of the adsorption of methane on NaX zeolite
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1986The authors study the methane-NaX zeolite adsorption system which is of interest since the presence of deep potential wells for methane adsorbed in NaX zeolite should be reflected in the behavior of the thermodynamic functions of the adsorbate. It is shown that the tempe-ature dependence is most strongly mainfested in the case of a nonideal gas phase ...
E. V. Chkhaidze +3 more
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Carbon dioxide adsorption and methanation on ruthenium
Journal of Catalysis, 1981The adsorption and methanation of carbon dioxide on a ruthenium-silica catalyst were studied using temperature-programmed desorption (TPD) and temperature-programmed reaction (TPR). Carbon dioxide adsorption was found to be activated; CO2 adsorption increased significantly as the temperature increased from 298 to 435 K.
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Adsorption of nitrogen and methane on natural clinoptilolite
1995Publisher Summary This chapter describes adsorption of nitrogen and methane on natural clinoptilolite. The volumetric method was used to study the adsorption of pure N 2 and CH 4 gases on natural clinoptilolite from Bigadic, Turkey. The Langmuir equation and the Flory-Huggins form of the Vacancy Solution theory were used to fit the pure gas ...
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