| US 7,491,261 B2 | ||
| Process and apparatus for generating and delivering an enriched gas fraction | ||
| John L. Warren, Kelowna (Canada); and Anthony Hiscock, Kelowna (Canada) | ||
| Assigned to Wearair Oxygen, Inc., British Columbia (Canada) | ||
| Filed on Jun. 27, 2006, as Appl. No. 11/475,357. | ||
| Claims priority of provisional application 60/693920, filed on Jun. 27, 2005. | ||
| Prior Publication US 2006/0288869 A1, Dec. 28, 2006 | ||
| Int. Cl. B01D 53/047 (2006.01) | ||
| U.S. Cl. 95—96 [95/130] | 21 Claims |
| 19. In a pressure swing adsorption (PSA) process wherein a gaseous feedstock mixture of a less strongly adsorbed component
in admixture with a more strongly adsorbed component is separated from said feedstock in a reactor having a bed of particulate
adsorbent, the improvement which comprises the steps of:
(a) passing said feedstock into said reactor;
(b) fitting said reactor with a gas diffuser plate to create an initial adsorption zone filled with said particulate adsorbent
bed and a subsequent void zone from which said less strongly adsorbed component is withdrawn;
(c) determining the ratio of said void zone to said adsorption zone based on the relative percentages of the gasses in said
feedstock and the bulk loading factor of said particulate adsorbent; and
(d) locating said diffuser plate based on said determined ratio.
|