Stephen H Carlton

US Patent:

20170173575, Jun 22, 2017

Filed:

Dec 12, 2016

Appl. No.:

15/375843

Inventors:

- Corning NY, US
Stephen Mitchell Carlton - Rocky Point NC, US
Steven Bruce Dawes - Corning NY, US
John Michael Jewell - Wilmington NC, US
Roger Alan Rose - Wilmington NC, US

International Classification:

B01J 38/10
B01J 23/90
B01J 29/90
B01J 23/94

Abstract:

Disclosed herein are methods for regenerating metal catalysts used in the purification of inert gases for use in fiber draw furnaces and other applications. The methods described herein can regenerate metal catalysts alone or in combination with molecular sieves. The methods disclosed herein are able to prevent the formation and retention of unwanted byproducts during and after the regeneration process, thereby efficiently converting oxidized catalysts to their reduced or elemental form. Gases purified with catalysts regenerated by the methods disclosed herein, when used in fiber draw furnaces and similar applications, can lead to extended equipment lifetimes and higher-quality products due to the lack of degradation by contaminants in the gas stream.