Process for separating components from gaseous streams
AssigneeCatalytic Materials, LLC
InventorsNelly M. Rodriguez, R. Terry K. Baker
Life of this patent
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Abstract
The present invention relates to the separation of one or more components from a multi-component gaseous stream. The component(s) being separated are relatively small molecular diameter gas components. They are separated by sorption techniques wherein the sorbent is a unique class of layered nanostructure materials, such as carbon nanofibers, characterized as having; (i) a surface area from about 0.2 to 3,000 m.sup.2 /g as determined by N.sub.2 adsorption at -196.degree. C., (ii) a crystallinity from about 5% to about 100%, and (iii) interstices from about 0.335 nm to about 0.67 nm.
Claims19
A process for selectively separating components from a gaseous stream, which components are those having a molecular diameter equal to or less than about 0.67 nm;
- which process comprises:
- (a) introducing a gaseous stream containing:
- (i) gaseous components having a molecular diameter equal to or less than about 0.67 nm, and (ii) gaseous components having a molecular diameter greater than about 0.67 nm into a bed of layered nanostructures characterized as having:
- (i) a surface area from about 0.2 to 3,000 m.sup.2 /g by N2 adsorption at -196.degree. C., (ii) a crystallinity from about 5% to about 100%, and (iii) interstices from about 0.335 nm to about 0.67 nm between graphite platelets.
A process for selectively separating components from a gaseous stream, which components are those having a molecular diameter equal to or less than about 0.67 nm;
- which process comprises:
- (a) introducing a gaseous stream containing:
- (i) gaseous components having a molecular diameter equal to or less than about 0.67 nm, and (ii) gaseous components having a molecular diameter greater than about 0.67 nm into a bed of carbon nanofibers characterized as having:
- (i) a surface area from about 0.2 to 3,000 m.sup.2 /g by N2 adsorption at -196.degree. C., (ii) a crystallinity from about 5% to about 100%, and (iii) interstices from about 0.335 nm to about 0.67 nm between graphite platelets.
Dependencies are inferred from the claim text.