Inventor
WOODWARD DONALD W
US20 patents
Patents
20 patentsUS5425241AJun 20, 1995
Process for the cryogenic distillation of an air feed to produce an ultra-high purity oxygen product
AIR PROD & CHEM22 citations92
US5230217AJul 27, 1993
Inter-column heat integration for multi-column distillation system
AIR PROD & CHEM21 citations92
US5129932AJul 14, 1992
Cryogenic process for the separation of air to produce moderate pressure nitrogen
AIR PROD & CHEM22 citations92
US5114449AMay 19, 1992
Enhanced recovery of argon from cryogenic air separation cycles
AIR PROD & CHEM38 citations92
US5006139AApr 9, 1991
Cryogenic air separation process for the production of nitrogen
AIR PROD & CHEM27 citations92
US4994098AFeb 19, 1991
Production of oxygen-lean argon from air
AIR PROD & CHEM26 citations92
US4936099AJun 26, 1990
Air separation process for the production of oxygen-rich and nitrogen-rich products
AIR PROD & CHEM46 citations92
US5049173ASep 17, 1991
Production of ultra-high purity oxygen from cryogenic air separation plants
AIR PROD & CHEM50 citations91
US4455158AJun 19, 1984
Nitrogen rejection process incorporating a serpentine heat exchanger
AIR PROD & CHEM28 citations90
US5224336AJul 6, 1993
Process and system for controlling a cryogenic air separation unit during rapid changes in production
AIR PROD & CHEM34 citations89
US5635541AJun 3, 1997
Elevated pressure air separation unit for remote gas process
AIR PROD & CHEM22 citations88
US4721164AJan 26, 1988
Method of heat exchange for variable-content nitrogen rejection units
AIR PROD & CHEM21 citations82
US4525187AJun 25, 1985
Dual dephlegmator process to separate and purify syngas mixtures
AIR PROD & CHEM24 citations80
US5275003AJan 4, 1994
Hybrid air and nitrogen recycle liquefier
AIR PROD & CHEM12 citations74
US5077978AJan 7, 1992
Cryogenic process for the separation of air to produce moderate pressure nitrogen
AIR PROD & CHEM7 citations74
US5006137AApr 9, 1991
Nitrogen generator with dual reboiler/condensers in the low pressure distillation column
AIR PROD & CHEM20 citations74
US4270939AJun 2, 1981
Separation of hydrogen containing gas mixtures
AIR PROD & CHEM19 citations74
US5442925AAug 22, 1995
Process for the cryogenic distillation of an air feed to produce a low to medium purity oxygen product using a single distillation column system
AIR PROD & CHEM10 citations71
US4496382AJan 29, 1985
Process using serpentine heat exchange relationship for condensing substantially single component gas streams
AIR PROD & CHEM16 citations70
US5634356AJun 3, 1997
Process for introducing a multicomponent liquid feed stream at pressure P2 into a distillation column operating at lower pressure P1
AIR PROD & CHEM2 citations63