Matthew J Wagner

US Patent:

6471937, Oct 29, 2002

Filed:

Sep 4, 1998

Appl. No.:

09/148779

Inventors:

John Erling Anderson - Somers NY
Matthew Lincoln Wagner - White Plains NY
Christopher Brian Leger - Houston TX

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

C01B 3118

US Classification:

423659, 4234182, 4234491, 423613, 48197 R

Abstract:

The invention comprises a reactor having a source of a first hot reactant gas, a mixing chamber in which said first hot reactant gas mixes with a second reactant gas to form a reactant gas mixture, but wherein substantially no reaction takes place and a reaction zone wherein said mixture undergoes vapor phase reaction. A process for using the reactor is also disclosed.

US Patent:

62150278, Apr 10, 2001

Filed:

Oct 20, 1998

Appl. No.:

9/175428

Inventors:

Vasilis Papavassiliou - Carmel NY
William Robert Williams - New Fairfield CT
Matthew Lincoln Wagner - White Plains NY

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

C07C 4527

US Classification:

568357

Abstract:

The amount of a ballast gas needed, to prevent combustion, deflagration, and/or detonations during a liquid phase reaction of molecular oxygen and a flammable process liquid, is reduced by using a ballast gas other than nitrogen. The ballast gas is selected to have a boiling point lower than the boiling point of the flammable process liquid and selected to produce a higher limiting oxygen value (LOV) in a mixture with the flammable process liquid vapor and molecular oxygen than the LOV for the corresponding mixture substituting just nitrogen for the inerting gas.