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	Peng-Robinson tillståndsekvation	Pinchanalys	Reaktiv destillation
Ämnesområde	Tillämpad fysik	Tillämpad fysik	Tillämpad fysik
Familj	Process / pipeline	Process / pipeline	Process / pipeline
Ursprungsår	1976	1978	1995
Upphovsperson	Ding-Yu Peng and David Bernard Robinson	Bodo Linnhoff, John Flower	Klaus Sundmacher
Typ	Equation of state; thermodynamic property correlation	Thermal design and optimization method	Integrated reaction-separation process model
Ursprungskälla	Peng, D. Y., & Robinson, D. B. (1976). A new two-constant equation of state. Industrial & Engineering Chemistry Fundamentals, 15(1), 59-64.	Linnhoff, B., & Flower, J. R. (1978). Synthesis of heat exchanger networks: I. Systematic generation of energy optimal networks. AIChE Journal, 24(4), 633-642.	Sundmacher, K., & Kienle, A. (2003). Reactive Distillation: Status and Future Directions. Wiley-VCH. ISBN: 978-3-527-30623-9
Alias	PR-EOS, Peng-Robinson model	heat integration, pinch point method, process integration	integrated distillation-reaction, reactive column, reaction with separation
Närliggande	4	4	4
Sammanfattning	The Peng-Robinson equation of state is a cubic model that describes the thermodynamic properties of pure fluids and mixtures. Introduced by Ding-Yu Peng and David Bernard Robinson in 1976, it improves upon earlier models (van der Waals, Redlich-Kwong) by better predicting compressibility factors and phase equilibria, especially near the critical point. It is widely used in petroleum engineering, chemical process design, and natural gas calculations.	Pinch analysis is a systematic method for identifying the minimum energy requirements and optimal heat recovery opportunities in chemical processes. Developed by Bodo Linnhoff and John Flower in 1978, it graphically identifies the 'pinch point'—the most constrained part of the process where heating and cooling demands nearly balance. By targeting these bottlenecks, engineers can design energy-efficient heat exchanger networks and reduce operating costs dramatically.	Reactive distillation couples reaction and separation in a single column, where reactants are separated from products continuously while simultaneously undergoing reaction on catalytic trays. Pioneered in the 1990s by Klaus Sundmacher and others, this process intensification technique dramatically reduces capital cost, energy consumption, and environmental impact for suitable reactions. It is now industrially proven for esterification, hydration, and transesterification processes.