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Title: Apparatus For The Liquefaaction 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 a turbo expander creating work output. A compressor is 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 divided into first and second portions with the first portion being expanded to liquefy the natural gas. A gas-liquid separator separates the vapor from the liquid natural gas. The second portion of the cooled, compressed process stream is also expanded and used to cool the compressed process stream. Additional features and techniques may be integrated with the liquefaction process including a water clean-up cycle and a carbon dioxide (CO2) clean-up cycle.

Inventors:
 [1];  [1];  [1];  [2];  [1];  [3];  [1];  [4]
  1. Idaho Falls, ID
  2. Ammon, ID
  3. Shelley, ID
  4. Concord, CA
Issue Date:
Research Org.:
BECHTEL BWXT IDAHO LLC
OSTI Identifier:
879997
Patent Number(s):
6886362
Application Number:
10/414883
Assignee:
Bechtel BWXT Idaho 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
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
DOE Contract Number:  
AC07-99ID13727
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Wilding, Bruce M, Bingham, Dennis N, McKellar, Michael G, Turner, Terry D, Raterman, Kevin T, Palmer, Gary L, Klingler, Kerry M, and Vranicar, John J. Apparatus For The Liquefaaction Of Natural Gas And Methods Relating To Same. United States: N. p., 2005. Web.
Wilding, Bruce M, Bingham, Dennis N, McKellar, Michael G, Turner, Terry D, Raterman, Kevin T, Palmer, Gary L, Klingler, Kerry M, & Vranicar, John J. Apparatus For The Liquefaaction Of Natural Gas And Methods Relating To Same. United States.
Wilding, Bruce M, Bingham, Dennis N, McKellar, Michael G, Turner, Terry D, Raterman, Kevin T, Palmer, Gary L, Klingler, Kerry M, and Vranicar, John J. Tue . "Apparatus For The Liquefaaction Of Natural Gas And Methods Relating To Same". United States. https://www.osti.gov/servlets/purl/879997.
@article{osti_879997,
title = {Apparatus For The Liquefaaction Of Natural Gas And Methods Relating To Same},
author = {Wilding, Bruce M and Bingham, Dennis N and McKellar, Michael G and Turner, Terry D and Raterman, Kevin T and Palmer, Gary L and Klingler, Kerry M and Vranicar, John J},
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 a turbo expander creating work output. A compressor is 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 divided into first and second portions with the first portion being expanded to liquefy the natural gas. A gas-liquid separator separates the vapor from the liquid natural gas. The second portion of the cooled, compressed process stream is also expanded and used to cool the compressed process stream. Additional features and techniques may be integrated with the liquefaction process including a water clean-up cycle and a carbon dioxide (CO2) clean-up cycle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 03 00:00:00 EDT 2005},
month = {Tue May 03 00:00:00 EDT 2005}
}