Santa Fe Science & Technology, Inc.

Los Alamos National Security, LLC

Dali Yang

Benjamin R Mattes

Andrei G Fadeev

Ian D Norris

Phillip N Adams

Lori A Brown

Craig Colling

Robert S Barbero

Martin E Carrera

David James Devlin

A composition of matter suitable for spinning polyaniline fiber, a method for spinning electrically conductive polyaniline fiber, a method for exchanging dopants in polyaniline fibers, and methods for dedoping and redoping polyaniline fibers are described.

Spinning, doping, dedoping and redoping polyaniline fiber

Light hydrocarbon enrichment is accomplished using a vertically oriented distillation column having a plurality of vertically oriented, nonselective micro/mesoporous hollow fibers. Vapor having, for example, both propylene and propane is sent upward through the distillation column in between the hollow fibers. Vapor exits neat the top of the column and is condensed to form a liquid phase that is directed back downward through the lumen of the hollow fibers. As vapor continues to ascend and liquid continues to countercurrently descend, the liquid at the bottom of the column becomes enriched in a higher boiling point, light hydrocarbon (propane, for example) and the vapor at the top becomes enriched in a lower boiling point light hydrocarbon (propylene, for example). The hollow fiber becomes wetted with liquid during the process.

Enrichment of light hydrocarbon mixture

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Los Alamos, NM, United States of America

Dali Yang