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Class Information
Number: 62/643
Name: Refrigeration > Cryogenic treatment of gas or gas mixture > Separation of gas mixture > Air > Distillation
Description: Subject matter wherein the constituents of air are extracted by a combination of temperature and pressure control in a mass transfer column.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621152 |
Compact cryogenic plant |
Nov. 24, 2009 |
| 7610775 |
Distillation process using microchannel technology |
Nov. 3, 2009 |
| 7555918 |
Liquid production modulation in self-refrigerated cryogenic nitrogen gas generators |
Jul. 7, 2009 |
| 7552599 |
Air separation process utilizing refrigeration extracted from LNG for production of liquid oxygen |
Jun. 30, 2009 |
| 7546748 |
Process and apparatus for the separation of air by cryogenic distillation |
Jun. 16, 2009 |
| 7516626 |
Apparatus for the low-temperature separation of a gas mixture, in particular air |
Apr. 14, 2009 |
| 7514056 |
Process and installation for the fractionation of air into specific gases |
Apr. 7, 2009 |
| 7497092 |
Integrated air compression, cooling, and purification unit and process |
Mar. 3, 2009 |
| 7490484 |
Integrated process and gas treatment process |
Feb. 17, 2009 |
| 7487648 |
Cryogenic air separation method with temperature controlled condensed feed air |
Feb. 10, 2009 |
| 7472551 |
Cryogenic process system with extended bonnet filter |
Jan. 6, 2009 |
| 7421856 |
Cryogenic air separation with once-through main condenser |
Sep. 9, 2008 |
| 7380414 |
Method and system for treating an oxygen-rich liquid bath collected at the foot of a cryogenic distillation column |
Jun. 3, 2008 |
| 7340921 |
Cold box and cryogenic plant including a cold box |
Mar. 11, 2008 |
| 7305850 |
Distillation process using microchannel technology |
Dec. 11, 2007 |
| 7306654 |
Method and apparatus for recovering water from atmospheric air |
Dec. 11, 2007 |
| 7299656 |
Cryogenic rectification system for neon production |
Nov. 27, 2007 |
| 7296437 |
Process for separating air by cryogenic distillation and installation for implementing this process |
Nov. 20, 2007 |
| 7292899 |
Model predictive control having application to distillation |
Nov. 6, 2007 |
| 7284395 |
Cryogenic air separation plant with reduced liquid drain loss |
Oct. 23, 2007 |
| 7263859 |
Process and apparatus for cooling a stream of compressed air |
Sep. 4, 2007 |
| 7231785 |
Column system and process for producing same |
Jun. 19, 2007 |
| 7228715 |
Cryogenic air separation process and apparatus |
Jun. 12, 2007 |
| 7225637 |
Integrated air compression, cooling, and purification unit and process |
Jun. 5, 2007 |
| 7219514 |
Method for separating air by cryogenic distillation and installation therefor |
May. 22, 2007 |
| 7210312 |
Energy efficient, inexpensive extraction of oxygen from ambient air for portable and home use |
May. 1, 2007 |
| 7207392 |
Method of preventing fire in computer room and other enclosed facilities |
Apr. 24, 2007 |
| 7197894 |
Integrated process and air separation process |
Apr. 3, 2007 |
| 7152432 |
Multistory bath condenser |
Dec. 26, 2006 |
| 7143606 |
Combined air separation natural gas liquefaction plant |
Dec. 5, 2006 |
| 7134297 |
Low-temperature air fractionation process |
Nov. 14, 2006 |
| 7121116 |
Method and device for producing oxygen |
Oct. 17, 2006 |
| 7011695 |
Barium-and calcium-based zeolitic adsorbent for gas purification in particular air |
Mar. 14, 2006 |
| 6957551 |
Method for producing an air separation installation |
Oct. 25, 2005 |
| 6948337 |
Low temperature air fractionation system |
Sep. 27, 2005 |
| 6945076 |
Production unit for large quantities of oxygen and/or nitrogen |
Sep. 20, 2005 |
| 6910350 |
Nitrogen generator |
Jun. 28, 2005 |
| 6834515 |
Plate-fin exchangers with textured surfaces |
Dec. 28, 2004 |
| 6829907 |
Process and apparatus for the recovery of krypton and/or xenon |
Dec. 14, 2004 |
| 6779361 |
Cryogenic air separation system with enhanced liquid capacity |
Aug. 24, 2004 |
| 6751986 |
Structured packing |
Jun. 22, 2004 |
| 6708523 |
Process and apparatus for producing high-purity nitrogen by low-temperature fractionation of air |
Mar. 23, 2004 |
| 6694775 |
Process and apparatus for the recovery of krypton and/or xenon |
Feb. 24, 2004 |
| 6694776 |
Cryogenic air separation system for producing oxygen |
Feb. 24, 2004 |
| 6691532 |
Air separation units |
Feb. 17, 2004 |
| 6662593 |
Process and apparatus for the cryogenic separation of air |
Dec. 16, 2003 |
| 6662594 |
Apparatus and process for producing gaseous oxygen under elevated pressure |
Dec. 16, 2003 |
| 6637240 |
Nitrogen generation process |
Oct. 28, 2003 |
| RE38218 |
Combined process and plant for producing compressed air and at least one air gas |
Aug. 19, 2003 |
| 6599347 |
Process for treating a feed gas |
Jul. 29, 2003 |
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