IIR document

Hybrid cryogenic liquefaction processes.

Author(s) : AGRAWAL R., BROSTOW A. A., HERRON D. M., et al.


Liquid nitrogen is used as a refrigeration source in a large number of applications. It is also shipped and vaporized to supply gaseous nitrogen for applications requiring small quantities of nitrogen. Liquid natural gas is produced at the source then transported to other locations for use as fuel. Liquefaction of either nitrogen or natural gas is a highly energy intensive process. It is essential to design liquefaction processes that are energy efficient and cost effective. The objective of the paper is to first present a brief overview of the well-known gas liquefaction processes. This will be followed by the description of some state of the art processes. Finally, the latest results for newly developed hybrid liquefaction processes is presented. These processes combine refrigeration methods commonly used in liquid nitrogen and liquid natural gas production. These results highlight the optimum refrigeration methods for different temperature zones as gases are cooled from ambient temperature, liquefied, and subcooled.

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  • Original title: Hybrid cryogenic liquefaction processes.
  • Record ID : 2004-2639
  • Languages: English
  • Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Publication date: 2003/08/17


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