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Engineering topics

Aines, Roger D

Publications and source records attributed to Aines, Roger D.

7 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2015

Catalyst functionalized buffer sorbent pebbles for rapid separation of carbon dioxide from gas mixtures

A method for separating CO.sub.2 from gas mixtures uses a slurried media impregnated with buffer compounds and coating the solid media with a catalyst or enzyme that promotes the transformation of CO.sub.2 to carbonic acid. Buffer sorbent pebbles with a catalyst or enzyme coating are provided for rapid separation of CO.sub.2 from gas mixtures.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2015

Synthetic catalysts that separate CO.sub.2 from the atmosphere and gas mixtures

The creation of a catalyst that can be used for a wide variety of applications including the steps of developing preliminary information regarding the catalyst, using the preliminary information to produce a template of the catalyst, and using the template of the catalyst to produce the catalyst.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2015

Polymer-encapsulated carbon capture liquids that tolerate precipitation of solids for increased capacity

A system for carbon dioxide capture from flue gas and other industrial gas sources utilizes microcapsules with very thin polymer shells. The contents of the microcapsules can be liquids or mixtures of liquids and solids. The microcapsules are exposed to the flue gas and other industrial gas and take up carbon dioxide from the flue gas and other industrial gas and eventual precipitate solids in the capsule.

36 MATERIALS SCIENCE↗
DOE OSTI2014

Tethered catalysts for the hydration of carbon dioxide

A system is provided that substantially increases the efficiency of CO.sub.2 capture and removal by positioning a catalyst within an optimal distance from the air-liquid interface. The catalyst is positioned within the layer determined to be the highest concentration of carbon dioxide. A hydrophobic tether is attached to the catalyst and the hydrophobic tether modulates the position of the catalyst within the liquid layer containing the highest concentration of carbon dioxide.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2014

Separation of a target substance from a fluid or mixture using encapsulated sorbents

Method and apparatus for separating a target substance from a fluid or mixture. Capsules having a coating and stripping solvents encapsulated in the capsules are provided. The coating is permeable to the target substance. The capsules having a coating and stripping solvents encapsulated in the capsules are exposed to the fluid or mixture. The target substance migrates through the coating and is taken up by the stripping solvents. The target substance is separated from the fluid or mixture by driving off the target substance from the capsules.

42 ENGINEERING↗
DOE OSTI2011

Deionization and desalination using electrostatic ion pumping

The present invention provides a new method and apparatus/system for purifying ionic solutions, such as, for example, desalinating water, using engineered charged surfaces to sorb ions from such solutions. Surface charge is applied externally, and is synchronized with oscillatory fluid movements between substantially parallel charged plates. Ions are held in place during fluid movement in one direction (because they are held in the electrical double layer), and released for transport during fluid movement in the opposite direction by removing the applied electric field. In this way the ions, such as salt, are "ratcheted" across the charged surface from the feed side to the concentrate side. The process itself is very simple and involves only pumps, charged surfaces, and manifolds for fluid collection.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗