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:
Jun. 07, 2022
Filed:
Oct. 31, 2019
Applicant:
Air Products and Chemicals, Inc., Allentown, PA (US);
Inventors:
Paul Higginbotham, Surrey, GB;
John Eugene Palamara, Macungie, PA (US);
Cory E. Sanderson, Allentown, PA (US);
John H. Petrik, Bethlehem, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 3/00 (2006.01); F25J 3/02 (2006.01);
U.S. Cl.
CPC ...
F25J 3/029 (2013.01); F25J 3/0204 (2013.01); F25J 2210/80 (2013.01); F25J 2215/30 (2013.01);
Abstract
Light gases such as helium are extracted from a carbon dioxide-containing feed stream by distillation. Costly dehydration steps are avoided by pumping the liquid bottoms stream leaving the distillation column without vaporization so as to ensure that any water present in the feed remains in solution with the bulk stream leaving the process. This prevents any liquid phase water causing corrosion or solid ice or hydrates forming to plug the flow.