Title:
OXYGEN PRODUCTION BY ION TRANSPORT MEMBRANE WITH NON-PERMEATE WORK RECOVERY
Document Type and Number:
Japanese Patent JP3102679
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To recover energy or useful work energy by expanding a pressurized oxygen reducing non-permeable gas at a temperature below the operating temperature of a membrane.
SOLUTION: An oxygen-containing gas 1 (e.g. air) is compressed in a compression area 101. The compressed feedstock 3 is at 150-350°F in an adiabatic mode. The compressed feedstock 9 is pre-heated by heating process flows 11 and 13 in a heat conversion area 103, and the feedstock 15 is introduced into a separation area 105, which consists of a final heating area 107 and an ion transport membrane area 109. A membrane 111 divides the membrane area 109 into a supply side and a permeation side, and oxygen permeates the membrane 111 selectively in the form of oxygen ion. The finally heated feedstock 17 is dispersed through the membrane to become a high purity oxygen permeate flow 13 which enters a final process 119 from a cooler 115. On the other hand, the hot, compressed non-permeate flow 11 containing 6-18% by volume oxygen is cooled in the heat converting area 103. And the non-permeate flow 11 further passes through a cooler 113 and a work recovering area 117 and is exhausted.
More Like This:
Inventors:
Stephen Lee Rusek
The Jeffrey Alan Knopf
Dale M. Taylor
The Jeffrey Alan Knopf
Dale M. Taylor
Application Number:
JP14383396A
Publication Date:
October 23, 2000
Filing Date:
June 06, 1996
Export Citation:
Assignee:
Air Products and Chemicals, Inc.
International Classes:
F01D15/08; B01D53/22; C01B13/02; D21C9/147; (IPC1-7): C01B13/02; B01D53/22; D21C9/147; F01D15/08
Domestic Patent References:
| JP4228403A | ||||
| JP760051A |
Other References:
【文献】米国特許5245110(US,A)
【文献】欧州特許出願公開211523(EP,A1)
【文献】欧州特許出願公開211523(EP,A1)
Attorney, Agent or Firm:
Chika Takagi (2 outside)