Comparative study of CO2-N2 and N2-N2 dual expansion in natural gas liquefaction process

Elieze Jackson; John Vitus Anele; Peter Odiboroghene Muwarure

doi:10.30574/gjeta.2023.16.3.0197

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Comparative study of CO2-N2 and N2-N2 dual expansion in natural gas liquefaction process

Elieze Jackson ^*, John Vitus Anele and Peter Odiboroghene Muwarure

Center for Gas Refining and Petrochemicals, University of Port Harcourt, Port Harcourt, Rivers State, Nigeria.

Research Article

Global Journal of Engineering and Technology Advances, 2023, 16(03), 200–206.

Article DOI: 10.30574/gjeta.2023.16.3.0197

DOI url: https://doi.org/10.30574/gjeta.2023.16.3.0197

Publication history

Received on 15 August 2023; revised on 26 September 2023; accepted on 29 September 2023

Abstract

The processes were modelled using the Aspen Hysys version 11. The paper compared two refrigeration systems with different refrigerants, CO2-N2 and N2-N2, and their expenders. The parameters compared are the liquefaction power, specific power, production capacity, and heat duty of the expander cycle. The liquefaction power of CO2-N2 (547.669kW) is lower than that of N2-N2 (815.85kW). The specific power consumption for CO2-N2 was 0.44096kW/kg, and for N2-N2 was 0.6569kW/kg. The production capacity N2-N2 gave a higher value of 6945.6MTPA than CO2-N2 4904.38MTPA.

Keywords

Optimization; Liquified Nigeria Gas (LNG); Natural Gas; Expander; Liquefaction Power; Specific Power consumption; Production Capacity

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How to cite this article

Elieze Jackson, John Vitus Anele and Peter Odiboroghene Muwarure. Comparative study of CO2-N2 and N2-N2 dual expansion in natural gas liquefaction process. Global Journal of Engineering and Technology Advances, 2023, 16(3), 200-206. Article DOI: https://doi.org/10.30574/gjeta.2023.16.3.0197

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