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RISS 인기검색어
- 검색키워드
- 저자 : Amirhossein Khalili-Garakani (검색결과 2 건)
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Matrix based method for synthesis of main intensified and integrated distillation sequences
Norollah Kasiri,Amirhossein Khalili-Garakani,Javad Ivakpour 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.4
The objective of many studies in this area has involved access to a column-sequencing algorithm enabling designers and researchers alike to generate a wide range of sequences in a broad search space, and be as mathematically and as automated as possible for programing purposes and with good generality. In the present work an algorithm previously developed by the authors, called the matrix method, has been developed much further. The new version of the algorithm includes thermally coupled, thermodynamically equivalent, intensified, simultaneous heat and mass integrated and divided-wall column sequences which are of gross application and provide vast saving potential both on capital investment, operating costs and energy usage in industrial applications. To demonstrate the much wider searchable space now accessible, a three component separation has been thoroughly examined as a case study, always resulting in an integrated sequence being proposed as the optimum.
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Safari Davood,Kasiri Norollah,Khalili-Garakani Amirhossein,Mafi Mostafa 한국화학공학회 2024 Korean Journal of Chemical Engineering Vol.41 No.5
To study the simultaneous impacts of distillation column sequencing and heat integration on the Methanol to Propylene plant’s economy, diff erent distillation sequences for three components separation have been examined. In this study, optimization has been done by considering Total Annual Cost, TAC, as an objective function and the independent variables, including the number of trays, distillation column pressure, and temperature levels of refrigeration cycles, by using the Genetic Algorithm, GA. In order to provide an insight into heat integration’s detrimental eff ects on TAC, optimization has been performed with and without heat integration. Analysis of the optimization results indicates that heat integration can reduce the TAC of the separation unit by nearly 50%. Also, scrutinized interpretation of confi gurations over the optimization results leads to the proposition that the thermal coupling of the direct sequence, with TAC of 238,000$ would exhibit the utmost performance for light gas separations, which would be more than 10% improvement compared with the simple direct. Furthermore, the application of the proposed 4-component separation unit reduces TAC by around 10% compared with the industrial plant. In this regard, an optimization framework has been presented for the systematic design of integrated below-ambient temperature separation units.
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