Natural gas liquefaction processes

  • Gadhiraju Venkatarathnam
Part of the International Cryogenics Monograph Series book series (ICMS)


The liquefaction of natural gas using a mixed refrigerant process was first proposed by Kleemenko in 1959 [50]. Mixed refrigerant processes were subsequently adopted for the commercial liquefaction of natural gas nearly 40 years ago. Over 95% of the base-load LNG plants operate on mixed refrigerant processes, with the remaining few operating on conventional cascade processes. The enthalpy of natural gas varies nonlinearly with temperature (at constant pressure), with points of inflection on the enthalpy temperature curve.


Heat Exchanger Exergy Loss Phase Separator Process Liquefaction Process Vapor Fraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. [50]
    Kleemenko, A. P. (1959). One flow cascade cycle. In Proc. of the 10th International Congress of Refrigeration, volume 1, pages 34–39.Google Scholar
  2. [38]
    Förg, W. (2003). Natural gas trade routes and liquefaction processes. Linde Technology, 1:4–11.Google Scholar
  3. [65]
    Paradowski, H., and Hagyard, P. (2003). Comparing five LNG processes. Hydrocarbon Engineering, 8(10):32–37.Google Scholar
  4. [71]
    Price, B. C. (2003). Small-scale LNG facility development. Hydrocarbon Processing, 82(1):37–40.Google Scholar
  5. [44]
    Gerdsmeyer, K.-D., and Isalski,W. H. (2005). On-board reliquefaction for LNG ships. In Proc. of the Gas Processors Association Europe Conference, London, May 2005.Google Scholar
  6. [75]
    Ransbarger, W. (2007). A fresh look at LNG process efficiency. LNG Industry, Spring 2007 issue.Google Scholar
  7. [58]
    Maher, J. B., and Sudduth, J. W. (1975). Method and apparatus for liquefying gases. U.S. Patent 3,914,949.Google Scholar
  8. [88]
    Swenson, L. K. (1977). Single mixed refrigerant, closed loop process for liquefying natural gas. U.S. Patent 4,033,735.Google Scholar
  9. [83]
    Shell (1962). Improvements in or relating to process and apparatus for liquefying natural gas. G.B. Patent 895, 094.Google Scholar
  10. [35]
    Fischer, B., Martin, P.-Y., and Rojey, A. (2004). Liquefaction of natural gas with natural gas recycling. U.S. Patent 6,763,680.Google Scholar
  11. [31]
    Coers, D. H., and Sudduth, J. W. (1976). Refrigerant apparatus and process using multicomponent refrigerant. U.S. Patent 3,932,154.Google Scholar
  12. [80]
    Roberts, M. J., Agrawal, R., and Daugherty, T. L. (2002). Single mixed refrigerant gas liquefaction process. U.S. Patent 6,347,531.Google Scholar
  13. [78]
    Roberts, M. J., and Agrawal, R. (2000). Dual mixed refrigerant cycle for gas liquefaction. U.S. Patent 6,119,479.Google Scholar
  14. [43]
    Gaumer Jr., S., Lee, S., and Charles, N. L. (1973). Combined cascade and multicomponent refrigeration system and method. U.S. Patent 3,763,658.Google Scholar
  15. [42]
    Garier, C., and Paradowski, H. (1981). Method and plant for liquefying a gas with low boiling temperature. U.S. Patent 4,274,849.Google Scholar
  16. [61]
    Newton, C. L. (1983). Dual mixed refrigerant natural gas liquefaction with staged compression. U.S. Patent 4,525,185.Google Scholar
  17. [66]
    Paradowski, H., and Rojey, A. (2000).Method and device for liquefying a natural gas without phase separation of the coolant mixtures. U.S. Patent 6,105,389.Google Scholar
  18. [14]
    Berger, E. (2005). Small scale LNG production in Europe from the early seventies until today — experience of a global LNG plant contractor. In Proc. of the First International Conference on Small Scale LNG, 29-30 September 2005, Oslo, Norway.Google Scholar
  19. [52]
    Krieger, H. (1976). Process and arrangement for cooling fluids. U.S. Patent 3,964,891.Google Scholar
  20. [81]
    Sarsten, J. A. (1977). Natural gas liquefaction process. G.B. Patent 1,472,196, US 4,057,972.Google Scholar
  21. [15]
    Berger, E., Förg,W., Heiersted, R. S., and Paurola, P. (2003). TheMFC®(mixed fluid cascade) process for the first European baseload LNG production plant. Linde Technology, 1:12–23.Google Scholar
  22. [39]
    Förg, W., Bach, W., and Stockmann, R. (1999). A new LNG baseload process and manufacturing of the main heat exchanger. Linde Reports on Science and Technology, 61:3–11.Google Scholar
  23. [86]
    Stockmann, R., Forg, W., Bolt, M., Steinbauer, M., Pfeiffer, C., Paurola, P., Fredheim, A. O., and Sorensen, O. (2001). Method for liquefying a stream rich in hydrocarbons. U.S. Patent 6,253,574.Google Scholar
  24. [77]
    Roberts, J. (2006). Integrated multiloop refrigeration process for gas liquefaction. U.S. Patent 7,086,251.Google Scholar
  25. [12]
    Barclay, M. and Denton, N. (2005). Selecting offshore LNG processes. LNG Journal, pages 34–36.Google Scholar
  26. [37]
    Foglietta, J. H. (2002). LNG production using dual independent expander refrigeration cycles. U.S. Patent 6,412,302.Google Scholar
  27. [79]
    Roberts, M. J., and Agrawal, R. (2001). Hybrid cycle for the production of liquefied natural gas. U.S. Patent 6,308,531.Google Scholar
  28. [33]
    Dubar, C. A. T., and Tu, O. L. M. (2001). Liquefaction apparatus. U.S. Patent 6,250,244.Google Scholar

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© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringIndian Institute of Technology MadrasChennaiIndia

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