TY - JOUR
T1 - Optimization of Small-Scale Natural Gas Liquefaction using Nitrogen Expander with Precooled Cycle
AU - Henryawan, M. A.
AU - Purwanto, W. W.
N1 - Funding Information:
This work was supported financially by DRPM UI under the Hibah Penugasan Publikasi Internasional Terindeks 9 (PIT-9) Universitas Indonesia Contract Number NKB-0081/UN2.R3.1/HKP.05.00/2019.
Publisher Copyright:
© 2020 IOP Publishing Ltd.
PY - 2020/4/30
Y1 - 2020/4/30
N2 - Nitrogen expander is the liquefaction process which suitable for small scale liquefied natural gas plant because its characteristic. However, the major issue of technology is low energy efficiency. In this study, optimization of small-scale natural gas liquefaction process using nitrogen expander with precooled cycles were conducted. The specific energy consumption is chosen as an objective function with decision variables are natural gas pressure after compression, nitrogen pressure after compression, inlet temperature of high pressure expander, evaporation temperature in precooling cycle, and type of precooling refrigerant. The refrigerant used for precooling cycle are propane, cyclopropane, isobutane, butane, and neopentane. The simulation and optimization processes are are performed by UniSim and GAMS software. The results show that integrating precooling cycle to the nitrogen expander system can reduce specific energy consumption up to 25, 24% and propane is the most effective precooling refrigerant.
AB - Nitrogen expander is the liquefaction process which suitable for small scale liquefied natural gas plant because its characteristic. However, the major issue of technology is low energy efficiency. In this study, optimization of small-scale natural gas liquefaction process using nitrogen expander with precooled cycles were conducted. The specific energy consumption is chosen as an objective function with decision variables are natural gas pressure after compression, nitrogen pressure after compression, inlet temperature of high pressure expander, evaporation temperature in precooling cycle, and type of precooling refrigerant. The refrigerant used for precooling cycle are propane, cyclopropane, isobutane, butane, and neopentane. The simulation and optimization processes are are performed by UniSim and GAMS software. The results show that integrating precooling cycle to the nitrogen expander system can reduce specific energy consumption up to 25, 24% and propane is the most effective precooling refrigerant.
KW - Natural Gas Liquefaction
KW - Nitrogen Expander
KW - Optimization
KW - Precooling Systems
KW - Small-Scale
UR - http://www.scopus.com/inward/record.url?scp=85084303958&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/778/1/012119
DO - 10.1088/1757-899X/778/1/012119
M3 - Conference article
AN - SCOPUS:85084303958
SN - 1757-8981
VL - 778
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012119
T2 - 26th Regional Symposium on Chemical Engineering, RSCE 2019
Y2 - 30 October 2019 through 1 November 2019
ER -
