Title:
NITROGEN ADSORPTION AND DESORPTION COMPOSITION AND NITROGEN SEPARATION METHOD
Document Type and Number:
Japanese Patent JP3411316
Kind Code:
B2
Abstract:
PURPOSE: To selectively separate nitrogen gas from other gas by using a nitrogen adsorbing-desorbing composition comprising a pentadentate organometallic complex consisting of W, Mo and transition metal and a solvent having a specific solubility parameter which can dissolve the organometallic complex.
CONSTITUTION: A nitrogen absorbing-desorbing composition comprises a pentadentate organometallic complex and a solvent (e.g. water) having ≥20 Mpa1/2 solubility parameter. The solvent can dissolve ≥0.1 M organometallic complex and the organometallic complex consists of a transition metal selected from Mo, W and a metal from Groups VII, VIII and IX, and at least one ligand can provide five coordinating atoms to the organometallic complex. For example, nitrogen is adsorbed from a nitrogen-containing feed stream by this composition in a gas-liquid adsorption column 20, and then a nitrogen-complexed liquid absorbent 28 is conducted to a stop column 40 where nitrogen is desorbed from the liquid absorbent.
Inventors:
Dwayne Tea Friesen
Walter Sea Babcock
David J. Edrund
Warren Kay Miller
Walter Sea Babcock
David J. Edrund
Warren Kay Miller
Application Number:
JP33070592A
Publication Date:
May 26, 2003
Filing Date:
December 10, 1992
Export Citation:
Assignee:
Bend Research, Inc.
International Classes:
B01D53/02; B01D53/04; B01D53/14; B01J20/22; C01B21/04; C07F9/50; C07F15/02; C10K1/32; (IPC1-7): B01J20/22; B01D53/02; B01D53/04; B01D53/14; C01B21/04; C10K1/32
Domestic Patent References:
| JP6342717A |
Attorney, Agent or Firm:
Sugimura Kosaku (1 person outside)