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Title: Apparatus for the liquefaction of natural gas and methods relating to same

Abstract

An apparatus and method for producing liquefied natural gas. A liquefaction plant may be coupled to a source of unpurified natural gas, such as a natural gas pipeline at a pressure letdown station. A portion of the gas is drawn off and split into a process stream and a cooling stream. The cooling stream passes through an expander creating work output. A compressor may be driven by the work output and compresses the process stream. The compressed process stream is cooled, such as by the expanded cooling stream. The cooled, compressed process stream is expanded to liquefy the natural gas. A gas-liquid separator separates a vapor from the liquid natural gas. A portion of the liquid gas is used for additional cooling. Gas produced within the system may be recompressed for reintroduction into a receiving line or recirculation within the system for further processing.

Inventors:
 [1];  [2];  [2]
  1. Ammon, ID
  2. Idaho Falls, ID
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
988701
Patent Number(s):
7591150
Application Number:
11/383,411
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25J - LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS {OR LIQUEFIED GASEOUS} MIXTURES BY PRESSURE AND COLD TREATMENT {OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS

Citation Formats

Turner, Terry D, Wilding, Bruce M, and McKellar, Michael G. Apparatus for the liquefaction of natural gas and methods relating to same. United States: N. p., 2009. Web.
Turner, Terry D, Wilding, Bruce M, & McKellar, Michael G. Apparatus for the liquefaction of natural gas and methods relating to same. United States.
Turner, Terry D, Wilding, Bruce M, and McKellar, Michael G. Tue . "Apparatus for the liquefaction of natural gas and methods relating to same". United States. https://www.osti.gov/servlets/purl/988701.
@article{osti_988701,
title = {Apparatus for the liquefaction of natural gas and methods relating to same},
author = {Turner, Terry D and Wilding, Bruce M and McKellar, Michael G},
abstractNote = {An apparatus and method for producing liquefied natural gas. A liquefaction plant may be coupled to a source of unpurified natural gas, such as a natural gas pipeline at a pressure letdown station. A portion of the gas is drawn off and split into a process stream and a cooling stream. The cooling stream passes through an expander creating work output. A compressor may be driven by the work output and compresses the process stream. The compressed process stream is cooled, such as by the expanded cooling stream. The cooled, compressed process stream is expanded to liquefy the natural gas. A gas-liquid separator separates a vapor from the liquid natural gas. A portion of the liquid gas is used for additional cooling. Gas produced within the system may be recompressed for reintroduction into a receiving line or recirculation within the system for further processing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {9}
}

Patent:

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