Title:
REFRIGERANT COMPOSITION CONTROL
Document Type and Number:
WIPO Patent Application WO/2011/018686
Kind Code:
A3
Abstract:
Contaminant is removed from a refrigerant stream of a reverse Brayton cycle refrigerant system (110-150) by introducing a liquefied portion (164) of the refrigerant stream into a contaminant removal column (162) as a reflux stream, removing a contaminant-enriched stream (167) from the bottom of the contaminant removal column, removing a refrigerant-enriched vapor stream (164) from the top of the contaminant removal column, and introducing said vapor stream back into the reverse Brayton cycle refrigerant system. Reboil duty (270) for the column can be provided by fluid (163) being cooled and/or liquefied by the system or vapor traffic can provided to the column by a portion (563) of the refrigerant stream or said fluid (163). The invention has particular application to natural gas liquefaction.
Inventors:
ROBERTS MARK JULIAN (US)
BROSTOW ADAM ADRIAN (US)
BROSTOW ADAM ADRIAN (US)
Application Number:
PCT/IB2010/001910
Publication Date:
March 26, 2015
Filing Date:
July 28, 2010
Export Citation:
Assignee:
AIR PROD & CHEM (US)
ROBERTS MARK JULIAN (US)
BROSTOW ADAM ADRIAN (US)
ROBERTS MARK JULIAN (US)
BROSTOW ADAM ADRIAN (US)
International Classes:
F25J1/02
Foreign References:
| US20080115530A1 | 2008-05-22 | |||
| DE102006039889A1 | 2008-02-28 | |||
| US3478529A | 1969-11-18 |
Attorney, Agent or Firm:
AIR PRODUCTS AND CHEMICALS, INC. (Eric J.,7201 Hamilton Boulevar, Allentown PA, US)
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