Abstract: The present invention relates to reactor tubes packed with a catalyst system employed to deliberately bias process gas flow toward the hot tube segment and away from the cold segment in order to reduce the circumferential tube temperature variation.
Type:
Grant
Filed:
July 25, 2017
Date of Patent:
April 21, 2020
Assignee:
PRAXIAR TECHNOLOGY, INC.
Inventors:
Kelly Nicholson, Troy M Raybold, Bo Jin
Abstract: The invention involves annular hollow fiber membrane bundle comprising a plurality of helically wound layers of semi-permeable hollow fibers helically wound thereon and at least one reinforcement filament which has been helically wound concurrently with said hollow fibers into the hollow fiber membrane bundle. A preferred embodiment provides that the reinforcement filament is uniformly distributed throughout the diameter of the bundle and/or across the axial length of the bundle. Though, other embodiments provide a non-uniform distribution throughout the diameter of the bundle and/or across the axial length of the bundle.
Type:
Grant
Filed:
March 29, 1996
Date of Patent:
December 30, 1997
Assignee:
Praxiar Technology, Inc.
Inventors:
Benjamin Bikson, Salvatore Giglia, Patrick Samuel Nicholas, Jr., Cheryl Ann Ford