The separation of aromatic hydrocarbons or olefins from paraffins is very important in chemical industry.The volatile organic solvents used are usually harmful to environment and human health.As green solvents,room te...The separation of aromatic hydrocarbons or olefins from paraffins is very important in chemical industry.The volatile organic solvents used are usually harmful to environment and human health.As green solvents,room temperature ionic liquids are potential substitutes for the separation of hydrocarbon products.Activity coefficients at infinite dilution of hydrocarbon solutes,such as alkanes,hexenes,alkylbenzenes and styrene,in 1-butyl-3-methyl imidazolium hexafluorophosphate ([BMIM][PF 6]),1-allyl-3-methylimidazolium tetrafluoroborate ( [AMIM][BF 4]),1-isobutenyl-3-methylimidazolium tetrafluoroborate ([MPMIM][BF 4]) and [MPMIM][BF 4]+AgBF 4 were determined by gas-liquid chromatography.The measurements were carried out at different temperatures between 298.15 K and 318.15 K.The separation effects of these ionic liquids for olefin/paraffin, alkanes/benzene and hexene isomers were discussed.展开更多
本文应用Metropolis et al.正则系综方法,对方阱纯流体及其二元混合物的微观结构特性进行了模拟计算,得到配位数、径向分布函数及压缩因子数据;用配位数的Monte Carlo数据检验了作者的配位数模型,并与Lee和Sandler的晶格模型作了对比,...本文应用Metropolis et al.正则系综方法,对方阱纯流体及其二元混合物的微观结构特性进行了模拟计算,得到配位数、径向分布函数及压缩因子数据;用配位数的Monte Carlo数据检验了作者的配位数模型,并与Lee和Sandler的晶格模型作了对比,结果表明,在描述方阱流体的配位数随分子性质和热力学状态变化的规律时,前者明显优于后者.展开更多
文摘The separation of aromatic hydrocarbons or olefins from paraffins is very important in chemical industry.The volatile organic solvents used are usually harmful to environment and human health.As green solvents,room temperature ionic liquids are potential substitutes for the separation of hydrocarbon products.Activity coefficients at infinite dilution of hydrocarbon solutes,such as alkanes,hexenes,alkylbenzenes and styrene,in 1-butyl-3-methyl imidazolium hexafluorophosphate ([BMIM][PF 6]),1-allyl-3-methylimidazolium tetrafluoroborate ( [AMIM][BF 4]),1-isobutenyl-3-methylimidazolium tetrafluoroborate ([MPMIM][BF 4]) and [MPMIM][BF 4]+AgBF 4 were determined by gas-liquid chromatography.The measurements were carried out at different temperatures between 298.15 K and 318.15 K.The separation effects of these ionic liquids for olefin/paraffin, alkanes/benzene and hexene isomers were discussed.
文摘本文应用Metropolis et al.正则系综方法,对方阱纯流体及其二元混合物的微观结构特性进行了模拟计算,得到配位数、径向分布函数及压缩因子数据;用配位数的Monte Carlo数据检验了作者的配位数模型,并与Lee和Sandler的晶格模型作了对比,结果表明,在描述方阱流体的配位数随分子性质和热力学状态变化的规律时,前者明显优于后者.