METHOD AND APPARATUS FOR CONTROLLING A COMPRESSOR AND METHOD OF COOLING A HYDROCARBON STREAM

Title:

METHOD AND APPARATUS FOR CONTROLLING A COMPRESSOR AND METHOD OF COOLING A HYDROCARBON STREAM

Document Type and Number:

WIPO Patent Application WO/2010/012559

Kind Code:

A3

Abstract:

Method and apparatus for controlling one or more first compressors (12), through which a compressor feed stream (10) is passed. At least one throttling valve (32) is provided downstream of a compressor recycle line (22), which is provided around the or each first compressor (12) and includes an in-line first recycle valve (24). Sometimes, at least a fraction of the compressor feed stream (10) is selectively allowed to bypass the or each first compressor (12) and the at least one throttling valve, via a bypass line (60). At least one of the throttling valves (32) is automatically controlled using the measurement values of at least one pressure and at least one flow of the group consisting of : the pressure (Pl) of the compressor feed stream (10), the flow (Fl) of the compressor feed stream (10), the pressure (P2) of the first compressed stream (20) and the flow (F2) of the first compressed stream (20). A first compressor controlled this way may be used in a method of cooling an initial hydrocarbon stream (100).

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Inventors:

VAN DIJK FREDERICK JAN (NL)

Application Number:

PCT/EP2009/058317

Publication Date:

October 09, 2014

Filing Date:

July 02, 2009

Export Citation:

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Assignee:

SHELL INT RESEARCH (NL)
VAN DIJK FREDERICK JAN (NL)

International Classes:

F25J1/02; F04D25/04; F04D27/02; F25J3/02

Foreign References:

US6401486B1	2002-06-11
US20060218939A1	2006-10-05
US20070193303A1	2007-08-23
US6332336B1	2001-12-25
US5743714A	1998-04-28
US5743715A	1998-04-28
US4526513A	1985-07-02

Other References:

JAMALUDIN S: "Process understanding and control approach of separator column coupled with overhead compressor: lessons learnt from Malaysia LNG Tiga", 1 January 2005, AICHE SPRING MEETING. NATURAL GAS UTILIZATION CONFERENCE, X, US, PAGE(S) 271 - 280, XP009097533

Attorney, Agent or Firm:

SHELL INTERNATIONAL B.V. et al. (PO Box 384, CJ The Hague, NL)

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