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HIGH-PRESSURE VAPOR-LIQUID AND VAPOR-LIQUID-LIQUID EQUILIBRIA FOR SYSTEMS CONTAINING SUPERCRITICAL CARBON-DIOXIDE, WATER AND FURFURAL
被引:24
|作者:
SAKO, T
[1
]
SUGETA, T
[1
]
NAKAZAWA, N
[1
]
OTAKE, K
[1
]
SATO, M
[1
]
ISHIHARA, K
[1
]
KATO, M
[1
]
机构:
[1] NIHON UNIV,FAC ENGN,DEPT IND CHEM,KORIYAMA,FUKUSHIMA 963,JAPAN
关键词:
EXPERIMENTS;
DATA;
VLE HIGH PRESSURE;
VLLE HIGH PRESSURE;
SUPERCRITICAL CARBON DIOXIDE;
FURFURAL;
WATER;
D O I:
10.1016/0378-3812(95)02706-K
中图分类号:
O414.1 [热力学];
学科分类号:
摘要:
We measured vapor-liquid equilibrium for a binary system CO2-furfural at temperatures of 303 and 323 K and vapor-liquid-liquid equilibrium for a ternary system CO2-water-furfural at temperatures of 303, 323 and 343 K and pressure of 5 MPa to obtain fundamental data for concentration of furfural by using three phase separation technique. Furthermore the experimental data were compared with results calculated by the Peng-Robinson equation of state combined with an asymmetric mixing rule. Results indicated that (1) the furfural-rich liquid phase contained more than 90wt% furfural on CO2-free basis and its concentration increased with decrease in temperature, and (2) the Peng-Robinson equation correlated the binary vapor-liquid equilibrium satisfactorily and estimated the ternary vapor-liquid-liquid equilibrium fairly well.
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页码:293 / 303
页数:11
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