Process efficiency enhancement of single mixed refrigerant LNG process

Nazreen Begum, Najibullah Khan and Dhiviya, Tinakaran (2025) Process efficiency enhancement of single mixed refrigerant LNG process. In: AIP Conference Proceedings. AIP Conference Proceedings; 3rd Process Systems Engineering and Safety Symposium 2023, ProSES 2023 , 6 September 2023 , Kuantan, Pahang. pp. 1-6., 3266 (1). ISSN 0094-243X ISBN 978-073545109-4 (Published)

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Abstract

Liquefied Natural Gas (LNG) processing is as an energy and cost-intensive process due to the large energy consumption required to liquify the gas. The objective of this study is to enhance the process efficiency of a Single Mixed Refrigerant (SMR) LNG process for a small-scale LNG train with a capacity of 1-2 million tonnes per annum (MTPA). The process efficiency is enhanced by determining the optimal combination of mixed refrigerant composition such as nitrogen, methane, ethane, propane and butane that will minimise the overall energy consumption. The SMR LNG process is modelled and simulated using Aspen Plus. The process efficiency is evaluated using two parameters which are specific power (SP) and coefficient of performance (COP). By enhancing the mixed refrigerant composition of SMR process the results indicate that the specific power (SP) is improved from 0.225 kWh/kg to 0.218 kWh/kg (i.e. improvement about 3.3%). Meanwhile, the coefficient of performance (COP) is improved to 4.22 which indicate about 5% improvement in term of process efficiency enhancement.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	Indexed by Scopus
Subjects:	T Technology > TP Chemical technology
Faculty/Division:	Faculty of Chemical & Natural Resources Engineering Institute of Postgraduate Studies
Depositing User:	DR. NAZREEN BEGUM NAJIBULLAH KHAN
Date Deposited:	08 Apr 2025 01:14
Last Modified:	08 Apr 2025 01:14
URI:	http://umpir.ump.edu.my/id/eprint/44246
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