Invention Grant
- Patent Title: Systems and methods for recovering helium from feed streams containing carbon dioxide
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Application No.: US13564871Application Date: 2012-08-02
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Publication No.: US09791210B2Publication Date: 2017-10-17
- Inventor: Paul Higginbotham , Vincent White , John Eugene Palamara
- Applicant: Paul Higginbotham , Vincent White , John Eugene Palamara
- Applicant Address: US PA Allentown
- Assignee: Air Products and Chemicals, Inc.
- Current Assignee: Air Products and Chemicals, Inc.
- Current Assignee Address: US PA Allentown
- Agent Amy Carr-Trexler
- Main IPC: F25J3/02
- IPC: F25J3/02 ; B01D53/00 ; F25J3/06

Abstract:
Systems and methods are provided for recovering helium from a feed comprising helium, carbon dioxide, and at least one intermediate component having a volatility between those of helium and carbon dioxide. In particular, processes of the present invention comprise separating the carbon dioxide and the components of intermediate volatility from the helium at a temperature greater than −82.7° C. to form a helium-rich product stream, wherein the concentration of at least one of the intermediate components in the helium-rich product stream is lower than its concentration in the feed stream, and wherein at least part of the separation is effected by contacting a vapor with a liquid.
Public/Granted literature
- US20140033764A1 Systems And Methods For Recovering Helium From Feed Streams Containing Carbon Dioxide Public/Granted day:2014-02-06
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