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Development of a 5 Tons/h LNG Plant with Nitrogen Expander Refrigeration Cycle

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Chemical and Petroleum Engineering Aims and scope

The possibility of building liquefied natural gas (LNG) plants of 5-20 tons/h capacity with an external nitrogen refrigeration cycle as an alternative to mixed cycles is investigated. A computational analysis is made and various schemes of natural gas liquefaction with external expansion cycle are compared. Scheme with two expanders is preferable for plants with capacities up to 20 tons/h. The main technical solutions ensuring versatility of the plant with sufficiently high efficiency are worked out. A design of a 5 tons/h LNG plant based on external nitrogen expansion cycle with two expanders is developed for a specific customer.

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References

  1. Russian Federation Patent No. 2576410 S2, Natural Gas Liquefaction Method [in Russian], claimed by R. K. Rudnitsky, M. A. Mashkantsev, and N. V. Rybakova (2016).

  2. L. N. Zotova, A. L. Dovbish, E. I. Gurov, and V. S. Aksenov, “Improving medium-capacity LNG plants with external cryogenic nitrogen expander cycle,” Tekhn. Gazy, No. 5, 18–23 (2014).

  3. I. F. Kuzmenko, A. L. Dovbish, K. V. Bezrukov, and V. A. Peredelsky, “R&D base, development and production experience of OAO Kriogenmash for improving LNG equipment,” Tekhn. Gazy, No. 3, 19–25 (2012).

  4. US Patent No. 20110113825 A1, Dual Nitrogen Expansion Process, claimed by Bengt Olav Neeraas and Tor Erling Sandvik (2011).

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Authors and Affiliations

  1. Cryogenmash PJSC (PAO Kriogenmash), Balashikha, Moscow Region, Russia

    A. A. Dovbish, V. V. Vasiliev & E. I. Gurov

Authors
  1. A. A. Dovbish
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  2. V. V. Vasiliev
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  3. E. I. Gurov
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Corresponding author

Correspondence to A. A. Dovbish.

Additional information

Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 58, No. 5, pp. 19−21, May, 2022.

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Dovbish, A.A., Vasiliev, V.V. & Gurov, E.I. Development of a 5 Tons/h LNG Plant with Nitrogen Expander Refrigeration Cycle. Chem Petrol Eng 58, 383–387 (2022). https://doi.org/10.1007/s10556-022-01103-2

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  • DOI: https://doi.org/10.1007/s10556-022-01103-2

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