Speeds of Sound and Excess Isentropic Compressibilities of Butyl Acetate＋Aromatic Hydrocarbons

Speed of sound data for butyl acetate＋benzene, or toluene, or o-xylene, or m-xylene, or p-xylene binary mixtures have been measured over the entire range of mole fraction at 308.15 K. The excess isentropic compressibilities （ Ks^E ） were computed from speed of sound and density data, derived from molar excess volume data. The Ks^E values were analyzed by using graph theoretical approach. The Ks^E values evaluated by graph theory compared reasonably well with their corresponding experimental values. The Ks^E data were also expressed in terms of Redlich-Kister polynomial equation to derive the coefficients and the standard deviation.

新型硫酸法烷基化反应器的研究

设计并制造了一种新型硫酸法烷基化反应器,使用该反应器模拟了丁烯和异丁烷在硫酸的催化作用下烷基化反应。实验结果表明,反应温度为12~15℃时,碳四烯烃和碳五烯烃转化率高于96%,烷基化油中的异构烷烃含量为80%以上,达到并超过某公司目标卧式反应器相关指标。同时该反应器具有结构简单,酸烃混合程度高,能耗低等优点。