Patent ID: 8114194

Claim:
A gas separation vessel comprising: a vessel shell; a partition inside the vessel shell and mounted on the vessel shell; a first bed support mounted on the vessel shell, between the partition and the vessel shell, to define a first bed space formed in part by an inner wall of the vessel shell and an outer wall of the partition, the first bed support being gas permeable; a second bed support mounted on the vessel shell, and within the partition, to define a second bed space formed in part by an inner wall of the partition, the second bed support being gas permeable; a first gas port located on the vessel shell beneath the first bed support and a second gas port located on the vessel shell beneath the second bed support, the first gas port being configured to permit gas flow upward through the exterior of the vessel shell and the first bed space and the second gas port being configured to permit gas flow downward through the second bed space and the exterior of the vessel shell; a first bed of separation medium in the first bed space, wherein the first bed of separation medium fills the entirety of the first bed space; and a second bed of separation medium in the second bed space, wherein the second bed of separation medium fills the entirety of the second bed space, wherein the first bed space and the second bed space form a single axial flow bed.