Invention Grant
US08578734B2 Method and apparatus for liquefying a hydrocarbon stream 有权
用于液化烃流的方法和装置

  • Patent Title: Method and apparatus for liquefying a hydrocarbon stream
  • Patent Title (中): 用于液化烃流的方法和装置
  • Application No.: US12300722
    Application Date: 2007-04-16
  • Publication No.: US08578734B2
    Publication Date: 2013-11-12
  • Inventor: Marco Dick Jager
  • Applicant: Marco Dick Jager
  • Applicant Address: US TX Houston
  • Assignee: Shell Oil Company
  • Current Assignee: Shell Oil Company
  • Current Assignee Address: US TX Houston
  • Priority: EP06113923 20060515
  • International Application: PCT/EP2007/053681 WO 20070416
  • International Announcement: WO2007/131850 WO 20071122
  • Main IPC: F25J5/00
  • IPC: F25J5/00 F25J1/00
Method and apparatus for liquefying a hydrocarbon stream
Abstract:
A method of liquefying a hydrocarbon stream such as natural gas from a feed stream, the method at least comprising the steps of: (a) providing a feed stream (10); (b) dividing the feed stream (10) of step (a) to provide at least a first feed stream (20) comprising at least 90 mass % of the initial feed stream (10), and a second feed stream (30); (c) liquefying the first feed stream (20) of step (b) at a pressure between 20-100 bar to provide a first liquefied natural gas (LNG) stream (40); (d) cooling the second feed stream (30) of step (b) to provide a cooled feed stream (50); (e) combining the first LNG stream (40) of step (c) with the cooled feed stream (50) of step (d) to provide a combined LNG stream (60); (f) reducing the pressure of the combined LNG stream (60) of step (e); and (g) passing the combined LNG stream (60) of step (f) through a flash vessel (12) to provide a product LNG stream (70) and a gaseous stream (80).
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