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  • Nová původní data fázových rovnovah pro soustavy kaysličník uhličitý + methanol, + ethanol, + 1-propanol a + 2-propanol za zvýšených tlaků v oboru teplot od 30 do 85 oC byla v kombinaci s již existujícími literárními údaji použita k vyhodnocení schopnosti vybraných stavových rovnic kvantitativně popsat údaje pro uvedený typ systémů. Testované stavové rovnice zahrnovaly Patelovu-Tejovu kubickou rovnici s van der Waalsovými a Wongovými-Sandlerovými směšovacími pravicly, stavovou rovnici PC-SAFT (“perturbed-chain statistical association fluid theory”) a novou třídu stavových rovnic, založených na primitivních modelech asociace pro alkanoly, kterou vyvíjíme v naší laboratoři. Je ukázáno, že fyzikálně založené modely vycházející z molekulární teorie vedou k lepšímu kvantitativnímu vystižení dat a vykazují větší predikční sílu ve srovnání se stále široce používanými kubickými stavovými rovnicemi. (cs)
  • Newly measured phase equilibrium data for the carbon dioxide + methanol, + ethanol, + 1-propanol, and + 2-propanol systems at elevated pressures over the temperature range from 30 to 85 oC were combined with the so far existing literature data and used to assess the performance of selected equations of state (EOS) for this family of systems. The EOS examined included the Patel-Teja cubic equation of state with van der Waals and Wong-Sandler mixing rules, PC-SAFT (perturbed-chain statistical association fluid theory) EOS, and a new class of EOS based on the primitive models of association for alkanols, which is under development in our laboratory. It is shown that the physically-based models footed in the molecular theory lead to better representation and offer higher predictive power in comparison to the (still routinely used) cubic EOS.
  • Newly measured phase equilibrium data for the carbon dioxide + methanol, + ethanol, + 1-propanol, and + 2-propanol systems at elevated pressures over the temperature range from 30 to 85 oC were combined with the so far existing literature data and used to assess the performance of selected equations of state (EOS) for this family of systems. The EOS examined included the Patel-Teja cubic equation of state with van der Waals and Wong-Sandler mixing rules, PC-SAFT (perturbed-chain statistical association fluid theory) EOS, and a new class of EOS based on the primitive models of association for alkanols, which is under development in our laboratory. It is shown that the physically-based models footed in the molecular theory lead to better representation and offer higher predictive power in comparison to the (still routinely used) cubic EOS. (en)
Title
  • Equation-of-State Study Based on Comprehensive Phase Equilibrium Data for Carbon Dioxide + Lower Alkanol Systems at Superambient Conditions.
  • Equation-of-State Study Based on Comprehensive Phase Equilibrium Data for Carbon Dioxide + Lower Alkanol Systems at Superambient Conditions. (en)
  • Studie stavových rovnic založená na rozsáhlém souboru dat fázových rovnovah pro soustavy kysličníku uhličitého s nižšími alkanoly za superambientních podmínek. (cs)
skos:prefLabel
  • Equation-of-State Study Based on Comprehensive Phase Equilibrium Data for Carbon Dioxide + Lower Alkanol Systems at Superambient Conditions.
  • Equation-of-State Study Based on Comprehensive Phase Equilibrium Data for Carbon Dioxide + Lower Alkanol Systems at Superambient Conditions. (en)
  • Studie stavových rovnic založená na rozsáhlém souboru dat fázových rovnovah pro soustavy kysličníku uhličitého s nižšími alkanoly za superambientních podmínek. (cs)
skos:notation
  • RIV/67985858:_____/06:00081976!RIV07-AV0-67985858
http://linked.open.../vavai/riv/strany
  • 153;156
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  • P(IAA4072301), Z(AV0Z40720504)
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  • 474380
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  • RIV/67985858:_____/06:00081976
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  • high pressure; equation of state; phase equilibria (en)
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  • [39716950F8D0]
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  • Helsingor
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  • Lyngby
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  • Proceedings.
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  • Aim, Karel
  • Nezbeda, Ivo
  • Babič, Alexandr
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number of pages
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  • Technical University of Denmark
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  • 87-91435-39-0
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