Process knowledge based opportunistic optimization of the N-2-CO2 expander cycle for the economic development of stranded offshore fields

Title
Process knowledge based opportunistic optimization of the N-2-CO2 expander cycle for the economic development of stranded offshore fields
Author(s)
이문용무다시르하산이상규[이상규]칸모드샤리크
Keywords
NATURAL-GAS LIQUEFACTION; NGL RECOVERY PROCESSES; DESIGN; PLANT
Issue Date
201405
Publisher
ELSEVIER SCI LTD
Citation
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, v.18, pp.263 - 273
Abstract
Several small scale natural gas (NG) liquefaction processes, such as N-2-CO2 expander processes, are attracting considerable attention. The inherent safety of operation and the smaller footprints make this process suitable for the economic development of stranded offshore NG fields. Unlike the mixed refrigerant process, a higher energy demand is an unusual concern with N-2-CO2 expander processes. Therefore, optimization of this process is carried out to make it competitive with other technologies. This paper presents an opportunistic optimization algorithm inspired by in-depth process analysis coupled with a rigorous simulation. The optimization method shows an energy saving of 15% compared to the base case and provides process understanding. The strong point of the proposed optimization methodology is that it can be modified easily and generalized for any expander-based NG liquefaction process. (C) 2014 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/32258http://dx.doi.org/10.1016/j.jngse.2014.03.004
ISSN
1875-5100
Appears in Collections:
공과대학 > 화학공학부 > Articles
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