Simulation and Thermodynamic Analysis of a Closed Cycle Nitrogen Expansion Process for Liquefaction of Natural Gas in Mini-scale

Amirhossein Yazdaninia; Ali Vatani; Marzieh Zare; Mojgan Abbasi

Simulation and Thermodynamic Analysis of a Closed Cycle Nitrogen Expansion Process for Liquefaction of Natural Gas in Mini-scale

Publish place: Journal of Gaz Technology، Vol: 6، Issue: 1

Publish Year: 1400

Type: Journal paper

Language: English

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https://civilica.com/doc/1823913

Document National Code:

JR_JGT-6-1_001

Index date: 20 November 2023

Simulation and Thermodynamic Analysis of a Closed Cycle Nitrogen Expansion Process for Liquefaction of Natural Gas in Mini-scale abstract

In this study a closed nitrogen expansion cycle (Niche) has been simulated with Aspen HYSYS V8.4. Energy and exergy analysis were applied to evaluate the process. Results of energy analysis indicated that specific power consumption of this process is 0.68 kWh/kg LNG. The results of exergy analysis showed that exergy efficiency of Niche LNG is 35.51%. It is concluded there is an interaction between specific power consumption and exergetic efficiency. Moreover, the highest value of exergetic efficiency and irrevsibility belong to compressor (C3) and gas turbine (E1). Moreover, this process can be suitable for mini-scale LNG plants.

Simulation and Thermodynamic Analysis of a Closed Cycle Nitrogen Expansion Process for Liquefaction of Natural Gas in Mini-scale Keywords:

Closed nitrogen expansion Cycle , Exergy Analysis , Specific power consumption , LNG

Simulation and Thermodynamic Analysis of a Closed Cycle Nitrogen Expansion Process for Liquefaction of Natural Gas in Mini-scale authors

Amirhossein Yazdaninia

Institute of Liquefied Natural Gas (ILNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran

Ali Vatani

Professor, Institute of Liquefied Natural Gas (I-LNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran

Marzieh Zare

Research & Technology Directorate of National Iranian Gas Company

Mojgan Abbasi

Assistant Professor, Institute of Petroleum Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran

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