Laboratory Measurement of Sorption in Porous Media

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Abstract/Contents

Abstract
Adsorption is increasingly being acknowledged as a storage mechanism in vapor dominated geothermal systems. In this study, two methods were employed to measure adsorption and desorption is porous media. The first was with a commercial prototype BET apparatus. A study into the rock particle sizes used in experiments and the rate of pressure change used to determine equilibrium were made. The sorption isotherms measured for geothermal rock demonstrated a strong hysteresis between the adsorption and desorption curves. The second method studied used a transient pressure model. Samples were filled with steam and the steam allowed to adsorb. One end of the core was then opened and the pressure decline with time was measured. This data was matched using a finite difference program utilizing the Langmuir equation and a regression program, producing the constants for the Langmuir equation. Data has been collected but computer program errors have prevented the regression step of the procedure.

Description

Type of resource text
Date created August 1991

Creators/Contributors

Author Harr, Michael S.
Primary advisor Ramey Jr., Henry J.
Degree granting institution Stanford University, Department of Petroleum Engineering

Subjects

Subject School of Earth Energy & Environmental Sciences
Genre Thesis

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User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.

Preferred citation

Preferred Citation
Harr, Michael S. (1991). Laboratory Measurement of Sorption in Porous Media. Stanford Digital Repository. Available at: https://purl.stanford.edu/rz454zn7587

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Master's Theses, Doerr School of Sustainability

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