The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2000
Filed:
Dec. 29, 1998
Robert C Mulvaney, III, Arlington Heights, IL (US);
Steven P Lankton, Wheeling, IL (US);
Stephen A McColl, Des Plaines, IL (US);
Franz-Marcus Nowak, Arlington Heights, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A method for purifying liquid metal heat exchange fluids uses a contacting drum in combination with purifiers to control metal hydride precipitation in a process with high hydrogen permeation. The contacting drum receives a slip stream of a circulating liquid metal stream and removes hydrogen from dissolved hydride by providing a high interfacial surface area and sufficient temperature for hydride decomposition under vacuum conditions. The liquid metal with a reduced hydride level may be returned to the circulating heat exchange stream or undergo further purification by hydride precipitation and filtration in a cold trap. The drum may be integrated with the cold traps to decompose re-dissolved hydride from a regenerant stream that dissolves precipitated hydride from the cold traps.