National Technology & Engineering Solutions of Sandia, LLC

Sandia Corporation

Bp Corporation North America Inc.

Jeffery A Greathouse

Dorina Florentina Sava Gallis

Tina M Nenoff

Marie Vernell Parkes

Mark D Tucker

Chad Staiger

Mark D Allendorf

Joanne Fredrich

Gary Russell Jerauld

Mark K Kinnan

Matthew J Paul

Randall Cygan

Guangping Xu

A system and method for separating Kr gas from Xe gas utilizing natural clinoptilolite. The method includes separating Kr gas from Xe gas by selectively adsorbing Kr gas. The method includes providing a vessel comprising a Kr adsorbent bed comprising a natural clinoptilolite adsorbent. A feed gas comprising Kr gas and Xe gas is exposed to the Kr adsorbent bed for a residence time to selectively adsorb sufficient Kr gas from the feed gas to form a Xe enriched gas raffinate product. The Xe enriched gas raffinate product is removed from the vessel. Thereafter, the Kr adsorbent bed is regenerated to release a Kr enriched gas extract product.

Separation of krypton gas from xenon gas using natural clinoptilolite

The present invention relates to a metal-organic framework composition, as well as constructs and methods thereof. In one particular example, the composition is employed to degrade a chemical agent in a non-aqueous environment.

Degradation of chemical agents using metal-organic framework compositions

MOFs are disclosed that can efficiently adsorb oxygen from a gas stream, such as air. Systems and methods are also disclosed that utilize MOFs to separate oxygen from a gas stream. The separated oxygen may be used in a commercial process such as a combustion process.

Compositions, systems and methods using selective porous materials for oxygen separation

Methods and systems for estimating conductivity of clay mineral systems, and for applying the estimates in larger-scale analysis. Conductivity of the clay may be estimated by constructing a molecular model of an anhydrous charge-neutral clay, and then assigning a charge density by substitution of ions in the model of the clay structure. Counterions are inserted for charge neutrality, and water molecules are added to the model to reflect a selected level of hydration. Following assignment of force-field coefficients, molecular dynamics simulation provides data from which diffusion coefficients can be estimated. Application of the Nernst-Einstein relationship to the diffusion coefficients of the counterions provides the ion conductivity of the clay system. This conductivity can be used to derive a formation factor, and can be applied in direct numerical simulation analysis.

Estimation of conductivity for nanoporous materials

A method including exposing a gas mixture comprising a noble gas to a metal organic framework (MOF), including an organic electron donor and an adsorbent bed operable to adsorb a noble gas from a mixture of gases, the adsorbent bed including a metal organic framework (MOF) including an organic electron donor.

Metal-organic frameworks for adsorption and separation of noble gases

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Albuquerque, NM, United States of America

Jeffery A Greathouse