Исследование эффективных малотоннажных установок сжижения природного газа

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А.М. Архаров, В.Ю. Семенов, Н.И. Лихачева
10 Инженерный журнал: наука и инновации # 4·2017
Studying efficient small-scale natural gas liquefaction plants
© A.M. Arkharov1 , . Semenov 2, N.I. Likhacheva 1
1Bauman Moscow State Technical University, Moscow, 105005, Russia
2Public joint-stock company “Cryogenmash”, Balashikha town, Moscow region,
143907, Russia
Currently there is a growing interest in producing liquefied natural gas (LNG) on a small
scale due to the development and modernisation of the gas and transport industries. LNG
production consumes a lot of energy, and small-scale production means that energy con-
sumption and prime cost of the output increase even further. This makes a comparative
analysis of the efficiency of a given technology specifying the origins of irreversibility
quite relevant. The study deals with the best-known natural gas liquefaction technologies
using refrigerant blends, SMR (APCI) and Limum (Linde), which are used in small-scale
production. We supply the results of comparing their efficiency using the statistical en-
tropy analysis method. We show that the Limum technology is more efficient due to the
presence of an extra refrigeration stage. On the basis of experimental and computational
data we also discovered that the thermodynamic efficiency of various LNG cycles de-
pends on the minimum liquefaction work.
Keywords: natural gas liquefaction plant, refrigerant blend cycle, thermodynamic effi-
ciency, statistical entropy analysis, minimum liquefaction work
REFERENCES
[1] Safin , ed. Otchet-spravochnik. Malotonnazhnoe proizvodstvo i primenenie
SPG — szhizhennogo prirodnogo gaza (metana) dlya bestruboprovodnogo
gazosnabzheniya i v kachestve motornogo topliva dlya nazemnykh transportnykh
sredstv. Tekhniko-investitsionnye pokazateli ustanovok [Report and Handbook.
Small-scale manufacturing and usage of LNG — liquefied natural gas (methane)
for pipeless gas supply and as engine fuel for ground vehicles. Technological
and investment indicators for plants]. St. Petersburg, Prima-khimmash LLC
Publ., 2013, 257 p.
[2] Arkharov A.M., Semenov , Krasnonosova S.D. Khimicheskoe i
neftegazovoe mashinostroenie — Chemical and Petroleum Engineering, 2015,
no. 10, pp. 12–16.
[3] Safin ., ed. Otchet-spravochnik. Sovremennye i perspektivnye tekhnologii
szhizheniya prirodnogo gaza [Report and handbook. Contemporary and
promising natural gas liquefaction technologies]. Issue 2. St. Petersburg, Prima-
khimmash LLC Publ., 2012, 320 p.
[4] Arkharov A.M. Osnovy kriologii. Entropiyno-statisticheskiy analiz
nizkotemperaturnykh sistem [Foundations of cryology. Statistical entropy
analysis of low-temperature systems]. Moscow, BMSTU Publ., 2014, 507 p.
[5] Arkharov A.M., Semenov , Krasnonosova S.D. Khimicheskoe i
neftegazovoe mashinostroenie — Chemical and Petroleum Engineering, 2015,
no. 11, pp. 3–9.
[6] Arkharov A.M., Semenov . Khimicheskoe i neftegazovoe mashinostroenie —
Chemical and Petroleum Engineering, 2015, no. 10, pp. 7–11.