| 水-二异丙醚-异辛烷混合物在不同温度下的液液相平衡 |
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| 引用本文： | 董艳辉,陈瑶,潘中娟,张渊明.水-二异丙醚-异辛烷混合物在不同温度下的液液相平衡[J].暨南大学学报,2006,27(1):87-91. |
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| 作者姓名： | 董艳辉 陈瑶 潘中娟 张渊明 |
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| 作者单位： | 暨南大学化学系,广东,广州,510632 |
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| 基金项目： | 国家留学回国人员科研启动基金;广东省科技计划;暨南大学校科研和教改项目 |
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| 摘 要： | 为了解二异丙醚和汽油中主要成分烃类化合物的兼溶性能,以及二异丙醚的添加对烃类化合物与水相互溶解性的影响,测定了常压下,水-二异丙醚-异辛烷三元体系在298.15 K和308.15 K温度下的液液相平衡数据,并且用mod ified UNIQUAC模型对所测体系进行了计算.结果为:能准确的用含二元、三元相互作用参数的模型来关联这个三元体系;并且关联的结果要比预测结果好,与实验数据更吻合.
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| 关 键 词： | modifiedUNIQUAC热力学模型 三元液液平衡 汽油添加剂 |
| 文章编号： | 1000-9965(2006)01-0087-05 |
| 修稿时间： | 2005年5月26日 |
Ternary liquid -liquid equilibria for mixtures of water, diisopropyl ether and iso -octane at different temperatures |
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| DONG Yan-hui,CHEN Yao,PAN Zhong-juan,ZHANG Yuan-ming.Ternary liquid -liquid equilibria for mixtures of water, diisopropyl ether and iso -octane at different temperatures[J].Journal of Jinan University(Natural Science & Medicine Edition),2006,27(1):87-91. |
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| Authors: | DONG Yan-hui CHEN Yao PAN Zhong-juan ZHANG Yuan-ming |
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| Abstract: | Diisopropyl ether is an ideal fuel additive to replace methyl tert-butyl ether for its high octane number and less pollution.To assess the effect of diisopropyl ether addition on hydrocarbon-water mutual solubilities and to predict properties of mixtures of diisopropyl ether with gasoline substitution hydrocarbons,liquid-liquid equilibria for a(ter-)nary system of(water+diisopropyl ether+iso-octant) was measured at two different temperatures of 298.15 K and 308.15 K.The experimental liquid-liquid equilibrium data were satisfactorily correlated by using a modified form of the UNIQUAC model with ternary interaction parameters in addition to binary ones,and the correlated results give better agreement with the experimental results than those predicted with binary parameters only. |
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| Keywords: | modified UNIQUAC model ternary liquid-liquid equilibria fuel additive |
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