Title:
NATURAL GAS LIQUEFACTION SYSTEM AND METHOD OF PRODUCING A LIQUEFIED NATURAL GAS STREAM
Document Type and Number:
WIPO Patent Application WO/2015/036429
Kind Code:
A3
Abstract:
A nitrogen stripper uses a shared distillation column that performs cryogenic distillation of multiple liquefied natural gas streams that are sourced from multiple cryogenic heat exchangers. The shared distillation column receives at least a part of an expanded liquefied natural gas stream, and discharges a liquefied natural gas stream through a bottom liquid outlet, and a reject vapour through an overhead vapour outlet. The expanded liquefied natural gas stream is obtained by expanding a plurality of pressurized liquefied natural gas streams discharged by the cryogenic heat exchangers. The distillation column is connected to a reboiler system, which has a separate heat exchange core for each one of the multiple liquefied natural gas streams that is dedicated to only one of these liquefied natural gas streams.
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Inventors:
BUIJS CORNELIS (NL)
ROVERS STEFAN ADRIANUS (NL)
ROVERS STEFAN ADRIANUS (NL)
Application Number:
PCT/EP2014/069288
Publication Date:
November 19, 2015
Filing Date:
September 10, 2014
Export Citation:
Assignee:
SHELL INT RESEARCH (NL)
SHELL OIL CO (US)
SHELL OIL CO (US)
International Classes:
F25J1/00; F25J1/02; F25J3/02
Foreign References:
| US20070193303A1 | 2007-08-23 | |||
| US20100319396A1 | 2010-12-23 | |||
| US20060086140A1 | 2006-04-27 | |||
| FR2682964A1 | 1993-04-30 |
Other References:
BUIJS C ET AL: "The PMR Process, a robust technology for large LNG trains", INTERNET CITATION, 2006, XP007904285, Retrieved from the Internet [retrieved on 20080312]
Attorney, Agent or Firm:
MATTHEZING, Robert, Maarten et al. (CJ The Hague, NL)
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