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An efficient multi-stage Brayton-JT cycle for liquefaction of natural gas.

Author(s) : CHANG H. M., CHUNG M. J., LEE S., et al.

Type of article: Article

Summary

Combined multi-stage Brayton-JT refrigeration cycles are investigated as a governmental effort in Korea to develop an original liquefaction process of natural gas in accordance with recent demand of higher efficiency and larger capacity. Based upon thermodynamic optimization theory, a combined refrigeration system is proposed with nitrogen (N2) Brayton cycle, ethylene (C2) JT cycle, and propane (C3) JT cycles, which are used for cooling the feed gas in a series of heat exchangers. Since no mixed refrigerants are used, this system is simple in operation and robust in reliability. A complete cycle design is presented to confirm its feasibility and estimate the liquefaction performance. It is expected that the proposed N2-C2-C3 cycle could have a reasonably high efficiency and the potential of great liquefaction capacity. Next steps are underway for patent application and practical process development. [Reprinted with permission from Elsevier. Copyright, 2010].

Details

  • Original title: An efficient multi-stage Brayton-JT cycle for liquefaction of natural gas.
  • Record ID : 30002604
  • Languages: English
  • Source: Cryogenics - vol. 51 - n. 6
  • Publication date: 2011/06
  • DOI: http://dx.doi.org/10.1016/j.cryogenics.2010.10.006

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