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Taheri Sajed, Fatemeh, Shojaeian, Abolfazl, Rasteh, Mojtaba. (1402). Thermodynamic modeling of vapor-liquid equilibrium systems including biodiesel in high and low pressures using cubic equations of state. هنرهای کاربردی, 1(1), -. doi: 10.22075/jpetk.2023.24860.1004
Fatemeh Taheri Sajed; Abolfazl Shojaeian; Mojtaba Rasteh. "Thermodynamic modeling of vapor-liquid equilibrium systems including biodiesel in high and low pressures using cubic equations of state". هنرهای کاربردی, 1, 1, 1402, -. doi: 10.22075/jpetk.2023.24860.1004
Taheri Sajed, Fatemeh, Shojaeian, Abolfazl, Rasteh, Mojtaba. (1402). 'Thermodynamic modeling of vapor-liquid equilibrium systems including biodiesel in high and low pressures using cubic equations of state', هنرهای کاربردی, 1(1), pp. -. doi: 10.22075/jpetk.2023.24860.1004
Taheri Sajed, Fatemeh, Shojaeian, Abolfazl, Rasteh, Mojtaba. Thermodynamic modeling of vapor-liquid equilibrium systems including biodiesel in high and low pressures using cubic equations of state. هنرهای کاربردی, 1402; 1(1): -. doi: 10.22075/jpetk.2023.24860.1004

Thermodynamic modeling of vapor-liquid equilibrium systems including biodiesel in high and low pressures using cubic equations of state

Progress in Engineering Thermodynamics and Kinetics
دوره 1، شماره 1، خرداد 2025    اصل مقاله (809.27 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22075/jpetk.2023.24860.1004
نویسندگان
Fatemeh Taheri Sajed1؛ Abolfazl Shojaeian* 2؛ Mojtaba Rasteh3
11Chemical Engineering Department, Hamedan University of Technology, Hamedan, 65155-579, Iran
2Chemical Engineering Department, Hamedan University of Technology, Hamedan
3Chemical Engineering Department, Hamedan University of Technology, Hamedan, 65155-579, Iran.
تاریخ دریافت: 20 مهر 1400،  تاریخ بازنگری: 20 اسفند 1400،  تاریخ پذیرش: 04 دی 1402 
چکیده
In the work, vapor-liquid equilibrium (VLE) of pure and binary mixtures of the systems including fatty acid Ethyl or Methyl esters and alcohols is analyzed by two simple cubic equations of state; Cubic-Square-Well (CSW EoS) and the Peng-Robinson (PR EoS). To achieve this purpose, first, the parameters of equations of state for pure systems are optimized using experimental vapor pressure and liquid density. Two models show accepted accuracy, however, the PR EoS with AARD=1.01% demonstrations better results for pure systems. Then the results of the pure systems are used to correlate the phase behavior of the binary mixtures in low and high pressure using one binary interaction parameter in equilibrium systems. The results for binary fatty acid ester systems show deviations as AARD=0.45% and AARD=0.23% for PR and CSW EoSs, respectively. For alcohol+fatty acid ester binary systems the pressure deviations are AARD=5.04% and AARD=14.14% for PR and CSW EoSs, respectively. Therefore, the results show that the CSW and PR equations of state can be applied to calculate the phase behavior of these types of systems with good accuracy and simplicity, therefore, can be used in designing, modeling, and optimization of the biodiesel units.
 
 

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کلیدواژه‌ها
Biodiesel؛ Vapor-liquid Equilibrium؛ Cubic-Square-Well (CSW)؛ Peng–Robinson (PR)؛ Equation of state
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