Application of the mono/multilayer and adsorption potential theories to coal methane adsorption isotherms at elevated temperature and pressure

Abstract Accurate estimates of gas-in-place and prediction of gas production from coal reservoirs require reasonable estimates of gas contents. Equations based on pore volume filling/potential theory provide a better fit than the Langmuir equation to both high-pressure (up to 10 MPa), high-temperature (> 1.5 T c ) methane isotherm data, and low-pressure (

[1]  R. Bustin.  Coal Petrology: Its Principles, Methods and Applications , 1985 .

[2]  M. Polanyi.  The Potential Theory of Adsorption. , 1963, Science.

[3]  S. Lowell,et al.  Powder surface area and porosity , 1984 .

[4]  E. Teller,et al.  ADSORPTION OF GASES IN MULTIMOLECULAR LAYERS , 1938 .

[5]  F. Maslan,et al.  Prediction of Gas–Adsorbent Equilibria , 1953 .

[6]  R. T. Yang,et al.  Gas Separation by Adsorption Processes , 1987 .

[7]  M. Muir.  Physical Chemistry , 1888, Nature.

[8]  S. Toyoda,et al.  Micropore structure of coal , 1971 .

[9]  James A. Schwarz,et al.  Analysis of high pressure adsorption of gases on activated carbon by potential theory , 1988 .

[10]  H. Marsh.  The Surface Areas of Coals as Evaluated from the Adsorption Isotherms of Carbon Dioxide using the Dubinin-Polanyi Equation , 1965 .

[11]  S. J. Gregg,et al.  Adsorption Surface Area and Porosity , 1967 .

[12]  I. Langmuir.  THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM. , 1918 .

[13]  J. A. Ritter,et al.  On the Dubinin-Radushkevich equation for adsorption in microporous solids in the Henry's law region , 1989 .

[14]  W. H. Cook,et al.  Correlation of adsorption equilibria of pure gases on activated carbon , 1964 .

[15]  W. K. Lewis,et al.  Adsorption Equilibria Hydrocarbon Gas Mixtures. , 1950 .

[16]  D. Bienstock,et al.  Adsorption of methane on dry coal at elevated pressure , 1974 .

[17]  J. A. Schwarz,et al.  A modified approach for estimating pseudo-vapor pressures in the application of the Dubinin-Astakhov equation , 1995 .

[18]  J. Danielli,et al.  Progress in surface and membrane science , 1971 .

[19]  R. T. Yang,et al.  Adsorption of gases on coals and heattreated coals at elevated temperature and pressure: 1. Adsorption from hydrogen and methane as single gases , 1985 .

[20]  N. K. ADAM,et al.  The Adsorption of Gases and Vapours , 1945, Nature.