摘要
为从 C_9芳烃中分离对甲乙苯和甲基苯乙烯,用色谱法对七种溶剂进行了筛选,并且用鼓泡平衡釜测定了六个体系在不同温度下的汽液平衡数据。回归求得了所测二元系的 Wilson 参数,从此推算了对甲乙苯-甲基苯乙烯-N-甲基吡咯烷酮体系的汽液平衡数据。
Two samples containing more than 99% 17methy1-4-ethyl benzene(PMEB)and methyl styrene(MS) respectively were obtained from C_9 aromatic hydrocarbonsby rectification.Seven solvents were evaluated for separation of PMEB and MS by gas chromatography.The vapor-liquid equilibria(VLE) for six systems were determined at differ-ent temperatures by using Junghan's still.For binary systems,data obtained were correlated with Wilson equation.Byuse of Wilson parameters estimated from binary system,tile VLE for the ternarysystem PMEB-MS-N-methy1-2-pyrrolidone were calculated.Results showed thatthe calculated values were in good agreement with experimental values.Themean deviation of gas composition was 0.0259(mole fraction).
出处
《石油化工》
CAS
CSCD
北大核心
1989年第1期47-52,共6页
Petrochemical Technology
