Thermodynamic consistency test procedure using orthogonal collocation and the Peng-Robinson equation of state
The Christiansen and Fredenslund programs for calculating vapor-liquid equilibria have been modified by replacing the Soave-Redlich-Kwong equation of state with the newly developed Peng-Robinson equation of state. This modification was shown to be a decided improvement for high pressure systems, especially in the critical and upper retrograde regions. Thermodynamic consistency tests were developed and used to evaluate and compare calculated values from both the modified and unmodified programs with reported experimental data for several vapor-liquid systems.
- Research Organization:
- South Carolina Univ., Columbia (USA). Coll. of Engineering
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6771265
- Report Number(s):
- ORNL/SUB-81-1012/1; ON: DE83007168
- Country of Publication:
- United States
- Language:
- English
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Coal gasification pilot plant support studies. Subtask 3-2. Phase equilibrium studies as applied to treatment of raw bases from coal gasification. [122 to 403/sup 0/F and 590 to 2800 psia]
A robust iterative method for flash calculations using the Soave-Redlich-Kwong or the Peng-Robinson equation of state
Conference
·
Wed Aug 01 00:00:00 EDT 1990
· American Chemical Society, Division of Petroleum Chemistry, Preprints; (United States)
·
OSTI ID:6969009
Coal gasification pilot plant support studies. Subtask 3-2. Phase equilibrium studies as applied to treatment of raw bases from coal gasification. [122 to 403/sup 0/F and 590 to 2800 psia]
Technical Report
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Wed Oct 01 00:00:00 EDT 1980
·
OSTI ID:7182250
A robust iterative method for flash calculations using the Soave-Redlich-Kwong or the Peng-Robinson equation of state
Journal Article
·
Wed Jun 01 00:00:00 EDT 1983
· SPEJ, Soc. Pet. Eng. J.; (United States)
·
OSTI ID:5522695
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COMPUTER CALCULATIONS
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COORDINATED RESEARCH PROGRAMS
EQUATIONS
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EQUILIBRIUM
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FLUIDS
GASES
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ALKANES
CARBON COMPOUNDS
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COMPUTER CODES
CONSOLIDATED FUEL REPROCESSING PROGRAM
COORDINATED RESEARCH PROGRAMS
EQUATIONS
EQUATIONS OF STATE
EQUILIBRIUM
ETHANE
FLUIDS
GASES
HYDROCARBONS
LIQUIDS
METHANE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PROPANE
RESEARCH PROGRAMS
THERMODYNAMICS
VAPORS