Multifunctional volumetric adsorption test units and methods of using same
AssigneeSaudi Arabian Oil Company
InventorsYuguo Wang, Md Ashraful Islam, Ameen Alabdulaal
Life of this patent
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Abstract
Technical equilibrium can be used to measure a single gas isotherm in a relatively fast and continuous manner rather than, for example, in a batch manner. Further, an expansion vessel can be used for successive desorption a multicomponent gas in combination with determining the composition of the multicomponent gas in combination with a calculation that provides both qualitative and quantitative information about the multicomponent gas. Moreover, a multicomponent gas can be flowed through an adsorbent bed and the and the flow of the multicomponent gas flow is shut off and isolated when equilibrium is reached.
Claims9
A method, comprising:
- controlling flow of a single component gas to a vessel so that so that the gas adsorbs to an adsorbent within an interior of the vessel;
- after a predetermined pressure of the single component gas within the interior of the vessel is reached, stopping the flow of the single component gas to the vessel;
- determining an amount of the single component gas adsorbed to the adsorbent at the predetermined pressure;
- during the controlling step, using a mass flow controller to control the flow of the single component gas so that the flow has a Deborah number of at most one and measuring the pressure within the interior of the vessel;
- and repeatedly performing the controlling, stopping and determining steps to provide data comprising a plurality of determined Gibbs excess amounts of adsorption of the single component gas on the adsorbent, wherein the single component gas comprises methane.
A unit, comprising:
- a vessel comprising an adsorbent;
- a pressure monitor configured to measure a pressure within an interior of the vessel;
- a gas source configured to provide a single component gas;
- a mass flow controller between the gas source and the interior of the vessel, wherein the mass flow controller is configured to control a flow of the single component gas from the gas source to the interior of the vessel;
- and a controller configured to determine a plurality of Gibbs excess amounts of adsorption of the single component gas on the adsorbent.
Dependencies are inferred from the claim text.