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http://dx.doi.org/10.7464/ksct.2014.20.3.314

Effects of Compositions of Mixed Refrigerants on the Performance of a C3MR Natural Gas Liquefaction Process  

Liu, Jay (Department of Chemical Engineering, Pukyong National University)
Publication Information
Clean Technology / v.20, no.3, 2014 , pp. 314-320 More about this Journal
Abstract
The purpose of this work is to optimize composition of mixture refrigerants used in the C3MR (Propane & Mixed Refrigerants) process by a statistical optimization technique. C3MR studied in this work is one of widely used commercial natural gas liquefaction processes with high efficiency. Process simulation was performed in a commercial process simulator and methane ($C_1$), ethane ($C_2$), propane ($C_3$), and nitrogen ($N_2$) were selected as mixed refrigerants. Using the process model, optimum composition of refrigerants mixture was determined via mixture design and central composite design to produce minimum energy consumption. As a result, it was confirmed that energy consumption is reduced down to 11.3% comparing to existing design. It was also compared with heat effectiveness through temperature profile of MCHE (main cryogenic heat exchanger).
Keywords
C3MR; Mixed refrigerant; Optimization; Mixture design; Response surface method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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