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Title:
METHOD OF LIQUEFYING A CONTAMINATED HYDROCARBON-CONTAINING GAS STREAM
Document Type and Number:
WIPO Patent Application WO/2014/166925
Kind Code:
A3
Abstract:
The present invention provides a method of liquefying a contaminated hydrocarbon-containing gas stream, the method comprising at least the steps of: (a) providing a contaminated hydrocarbon-containing gas stream (20); (b) cooling the contaminated hydrocarbon-containing gas stream (20) in a first heat exchanger (3) thereby obtaining a cooled contaminated hydrocarbon-containing stream (40); (c) cooling the cooled contaminated hydrocarbon- containing stream (40) in an expander (4) thereby obtaining a partially liquefied stream (70); (d) separating the partially liquefied stream (70) in a separator (5) thereby obtaining a gaseous stream (80) and a liquid stream (90); (e) expanding the liquid steam (90) obtained in step (d) thereby obtaining a multiphase stream (100), the multiphase stream (100) containing at least a vapour phase, a liquid phase and a solid phase; (f) separating the multiphase stream (100) in a separator (7) thereby obtaining a gaseous stream (110) and a slurry stream (120); (g) separating the slurry stream (120) in a solid/liquid separator (9) thereby obtaining a liquid hydrocarbon stream (170) and a concentrated slurry stream (140); (h) passing the gaseous stream (80) obtained in step (d) through the first heat exchanger (3) thereby obtaining a heated gaseous stream (270); and (i) compressing the heated gaseous stream (270) thereby obtaining a compressed gas stream (220); and (j) combining the compressed gas stream (220) obtained in step (i) with the contaminated hydrocarbon-containing gas stream (20) provided in step (a).

Inventors:
VAN AKEN, Michiel Gijsbert (Carel van Bylandtlaan 16, HR The Hague, NL-2596, NL)
WOLTERS-DEN BREEJEN, Mariska (Grasweg 31, HW Amsterdam, NL-1031, NL)
Application Number:
EP2014/057007
Publication Date:
January 29, 2015
Filing Date:
April 08, 2014
Export Citation:
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Assignee:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (Carel van Bylandtlaan 30, HR The Hague, NL-2596, NL)
SHELL OIL COMPANY (PO Box 2463, One Shell PlazaHouston, Texas, 77252-2463, US)
International Classes:
F25J1/00; F25J1/02; F25J3/06; F25J3/08
Foreign References:
US20060213222A12006-09-28
US20020174678A12002-11-28
US20110094263A12011-04-28
Attorney, Agent or Firm:
MATTHEZING, Robert Maarten (PO Box 384, CJ The Hague, NL-2501, NL)
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