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Design and Pinch Analysis of Styrene Production Process Using Aspen HYSYS and Aspen Energy Analyzer

nagamalleswara Rao kanidarapu, G. Koteswara Reddy, P. Rajendra Prasad, V. Sujatha

Abstract


This paper presents the design and energy analysis of styrene production process. Process flow diagram is designed using Aspen HYSYS. Styrene product obtained is of purity 73% and further purity is recommended. Pinch analysis is applied to the process plant by using Aspen Energy Analyzer, as a part of that in the first step all the stream data is extracted, in the second step heat exchanger networks (HEN) is developed for the base case design and in the third step retrofit is done for the base case design. Retrofit is applied here to find an alternative energy-efficient HEN which minimizes the operating costs. In retrofit analysis five new heat exchangers are added to the base case HEN which reduced the operating cost with the payback period of less than one year.

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REFERENCES

Linnhoff B. Retrofit projects through pinch technology. Proceedings from the Sixth Annual Industrial Energy Technology Conference, Houston, TX. April 15–18, 1984; 1.

Yoon S.G. et al. Heat integration analysis for an industrial ethylbenzene plant using pinch analysis. Applied Thermal Engineering. 2007; 27: 886–93p.

Lavric V, et al. Entropy generation reduction through chemical pinch analysis. Applied Thermal Engineering. 2003; 23: 1837–45p.

Tokos H, et al. Energy saving opportunities in heat integrated beverage plant retrofit. Applied Thermal Engineering. 2010; 30: 36–44p.

Lavric V, et al. Chemical reactors energy integration through virtual heat exchangers-benefits and drawbacks. Applied Thermal Engineering. 2005; 25: 1033–44p.

Fornell R, Berntsson T. Process integration study of a craft mill converted to an ethanol production plant – Part A: Potential for heat integration of thermal separation units. Applied Thermal Engineering. 2012; 35: 81–90p.

Kralj AK, et al. Retrofit of Complex and energy intensive processes II: stepwise simultaneous supersstructural approach. Computers and Chemical Engineering. 2000; 24: 125–38p.

Furman KC, Sahinidis NV. A critical review and annotated bibliography for heat exchanger network synthesis in the 20th century. Industrial and Engineering Chemistry Research. 2002; 41: 2335–70p.

Linnhoff B, Turner JA. Heat-recovery networks: New insights yield big savings. Chemical Engineering. Nov. 2, 1981; 56p.

Linnhoff B, et al. User Guide on Process Integration for the Efficient Use of Energy. IChemE, U.K. Available in the United States through RN Miranda, Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, New York 10523.

Krajnc M, et al. Heat integration in a specialty product process. Applied Thermal Engineering. 2006; 26881–91p.

Boland D. Energy management: Emphasis In the 80s. The Chemical Engineer. 1983; 24p.

Luyben WL. Use of dynamic simulation for reactor safety analysis. Computers and Chemical Engineering. 2012; 40: 97–109p.

Nagamalleswara Rao K, et al. Design and control of acetaldehyde production process. Trends in Chemical Engineering. 2014; 1(1): 11–21p.

Nagamalleswara Rao K, et al. Design and control of acrylic acid production process. Trends in Chemical Engineering. 2014; 1(1): 1–10p.

Cox RK, et al. Can enable a paradigm shift in process control? Modeling for the rest of us. Computers and Chemical Engineering. 2006; 30: 1542–52p.

Luyben WL. Design and control of dual condensers in distillation columns. Chemical Engineering and Processing: Process-Intensification. 2013; 74: 106–14p.

Qiu QF, et al. Application of a plant-wide control design to the HDA process. Computers and Chemical Engineering. 2003; 7(1): 73–94p.

Gadalla M. A thermo-hydraulic approach to conceptual design of an internally heat-integrated distillation column (i-HIDiC). Computers and Chemical Engineering. 2007; 31: 1346–54p.

Lucia A. et al. Distillation pinch points and more. Computers and Chemical Engineering. 2008; 32: 1342–64p.

Gorsek A, Galvic P. Process integration of a steam turbine. Applied Thermal Engineering. 2003; 23: 1227–34p.

Salazar JM, et al. Rigorous-simulation pinch technology refined approach for process synthesis of the water-gas shift reaction system in an IGCC process with carbon capture. Computers and Chemical Engineering. 2011; 35: 1863–75p.

Aspen Energy Analyzer User Guide. Aspen Tech Inc.


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