VAPOR-LIQUID-EQUILIBRIA OF HYDROCARBONS AND FUEL OXYGENATES .2.

被引:25
作者
BENNETT, A [1 ]
LAMM, S [1 ]
ORBEY, H [1 ]
SANDLER, SI [1 ]
机构
[1] UNIV DELAWARE,DEPT CHEM ENGN,NEWARK,DE 19716
关键词
D O I
10.1021/je00010a021
中图分类号
O414.1 [热力学];
学科分类号
摘要
Vapor-liquid equilibrium data for methyl tert-butyl ether (MTBE) + 1-heptene, MTBE + four-component gasoline prototype, ethanol + four-component gasoline prototype, and separately MTBE and ethanol with the Auto/Oil Air Quality Improvement Research Gasoline Blend A are reported. Small additions of MTBE have a very small effect on the total equilibrium pressure of this gasoline blend, and at most temperatures will decrease this pressure. In contrast, small additions of ethanol to this gasoline blend result in a significant increase in the equilibrium pressure at all temperatures. Analysis shows that the vapor-liquid equilibrium data for the MTBE-containing systems are easily correlated using a modified Peng-Robinson equation of state with conventional van der Waals one-fluid mixing rules. Data for mixtures containing ethanol cannot be accurately correlated in this way.
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页码:263 / 269
页数:7
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