Nitrogen sorption
AssigneeBend Research, Inc.
InventorsDwayne T. Friesen, Walter C. Babcock, David J. Edlund, Warren K. Miller
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Abstract
Nitrogen-sorbing and -desorbing compositions and methods of using the same are disclosed, which are useful for the selective separation of nitrogen from other gases, especially natural gas.
Claims8
A composition comprising a hexacoordinate organometallic complex and a solvent having a solubility parameter of .gtoreq.20MPa.sup.1/2, said organometallic complex consisting essentially of a transition metal selected from W, Fe, Co, and Mn and from one to six coordinating ligands capable of providing six coordinating atoms to said organometallic complex, at least one of said coordinating ligands comprising bound nitrogen, said solvent being capable of dissolving said organometallic complex to .gtoreq.0.1M wherein said ligands are mono-, bi-, tetra- or pentadentate and are selected from the group consisting of halogens, hydrides carbon monoxide, amines, phosphines, phosphites, thiols and sulfides.
Dependencies are inferred from the claim text.