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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 (CO.sub.2) 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:
879755
Patent Number(s):
6581409
Application Number:
10/086066
Assignee:
Bechtel BWXT Idaho, LLC (Idaho Falls, ID) INEEL
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., 2003. 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/879755.
@article{osti_879755,
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 (CO.sub.2) clean-up cycle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {6}
}

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