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 · Wed Oct 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/7182250· OSTI ID:7182250

Several methods to predict the phase equilibrium behavior of gas mixtures at different temperatures and pressures appear in the literature. In this study, four of these correlations have been evaluated using experimentally derived vapor-liquid equilibrium compositions and phase densities. The experiments were conducted with simulated coal gasification product gas-benzene mixtures over a temperature range of 122/sup 0/ to 403/sup 0/F and pressure range of 590 to 2800 psia. The four correlations evaluated were the Peng-Robinson, the Soave Redlich-Kwong, the Redlich-Kwong Chao-Seader, and the Redlich-Kwong Grayson-Streed. Interaction coefficients for several of the components of interest for use in the Peng-Robinson equation of state were also determined from available binary vapor-liquid equilibrium data. Of the four available vapor-equilibrium correlations evaluated, the Peng-Robinson correlation provided the closest approximation to the experimental results. The next closest correlations were the Soave Redlich-Kwong, the Redlich-Kwong Chao-Seader, and the Redlich-Kwong Grayson-Streed.

• Research Organization: Institute of Gas Technology, Chicago, IL (United States)
• DOE Contract Number: AC21-78ET11330
• OSTI ID: 7182250
• Report Number(s): FE-2306-15
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BENZENE
PHASE STUDIES
FUEL GAS
CARBON DIOXIDE
CARBON MONOXIDE
CHEMICAL COMPOSITION
COAL GASIFICATION
COMPARATIVE EVALUATIONS
CORRELATIONS
EQUILIBRIUM
ETHANE
HIGH TEMPERATURE
HYDROGEN
LIQUIDS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
METHANE
MIXTURES
VAPORS
ALKANES
AROMATICS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DISPERSIONS
ELEMENTS
FLUIDS
FUELS
GAS FUELS
GASES
GASIFICATION
HYDROCARBONS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification
010600 - Coal
Lignite
& Peat- Properties & Composition