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:
Dec. 15, 2020
Filed:
Jan. 13, 2020
Kevin J. Saboda, Long Bech, CA (US);
Paul W. Belanger, Clarence Center, NY (US);
Richard D. Lenz, Tonawanda, NY (US);
Kirk F. Larson, Amherst, NY (US);
Steven C. Brown, Williamsville, NY (US);
John P. Ricotta, Kenmore, NY (US);
Guang X. Chen, Williamsville, NY (US);
Jeremy D. Faust, Amherst, NY (US);
Kevin J. Saboda, Long Bech, CA (US);
Paul W. Belanger, Clarence Center, NY (US);
Richard D. Lenz, Tonawanda, NY (US);
Kirk F. Larson, Amherst, NY (US);
Steven C. Brown, Williamsville, NY (US);
John P. Ricotta, Kenmore, NY (US);
Guang X. Chen, Williamsville, NY (US);
Jeremy D. Faust, Amherst, NY (US);
PRAXAIR TECHNOLOGY, INC., Danbury, CT (US);
Abstract
An annular divided wall column for the cryogenic rectification of air or constituents of air is provided. The annular divided wall column includes a first annular column wall and a second annular column wall disposed within the first annular column wall to define an annulus column region and an interior core column region. The present annular divided wall column further includes structured packing elements disposed within at least the annulus column region as well as a ring-shaped cantilevered collector; and a ring-shaped distributor disposed in the annulus column region above or below the plurality of structured packing elements. The thermal expansion and contraction of the second annular column wall in a radial direction and in an axial direction is independent of the thermal expansion and contraction of the first annular column wall in the radial and axial directions.