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Adsorption of methane and several mixtures of methane and carbon dioxide at elevated pressures and near ambient temperatures on 5A and 13X molecular sieves by tracer perturbation chromatography
Author(s) -
Rolniak Paul D.,
Kobayashi Riki
Publication year - 1980
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690260413
Subject(s) - methane , molecular sieve , carbon dioxide , chemistry , zeolite , adsorption , sorption , tracer , gas chromatography , inorganic chemistry , analytical chemistry (journal) , environmental chemistry , chromatography , organic chemistry , catalysis , physics , nuclear physics
The principles of tracer perturbation chromatography were applied to measure the sorption of pure methane and several methane‐carbon dioxide mixtures on 5A and 13X molecular sieves at near ambient temperatures to pressures in excess of 7 MPa (1 000 lb/in. 2 abs). The molecular sieves studied were industrial grade zeolite crystals pelleted with 20 wt % clay binder. The statistical mechanical model of Ruthven was applied to both pure methane and to several mixtures of methane rich, methane‐carbon dioxide mixtures from a few MPa (50 lb/in. 2 abs) to pressures as high as 10.34 MPa (1 500 lb/in. 2 abs) at near ambient temperature. While the theory appears to correlate the data well even at high pressures, some limitations of the theory begin to appear for the mixtures of higher dioxide concentrations.