Vapor-liquid equilibrium simulation of binary and ternary mixtures of CH4, C2H4 and iso-C4H10     

张吕鸿  张晶  孙永利  闫娇  刘玉花  刘萌萌 《天津大学学报(英文版)》2014,20(2):79-85

The vapor-liquid equilibrium（VLE） properties for the binary and ternary mixtures of CH4,C2H4 and isoC4H10 are of great importance in the recovery of ethylene from mixture containing CH4 and C2H4 with iso-C4H10 as solvent.Hence,Gibbs ensemble Monte Carlo（GEMC） simulations were used to estimate vapor-liquid equilibrium for the binary and ternary mixtures of CH4,C2H4 and iso-C4H10 with the united atom potential NERD model.The selected simulation conditions are based on the experiment in the literature.The results of this work were shown to be in satisfactory agreement with available experimental data and predictions of Peng-Robinson equation of state.The structure of simulated liquid phase is also characterized by radial distribution function（RDF）,which contributes to further understanding of the VLE curve of these systems.RDF is not sensitive to the pressure and temperature range.With the increase of pressure or the decrease of temperature,the molecules tend to gather together.  相似文献   

论罪刑法定原则下的公正与民意     

闫娇 《大观周刊》2012,(43):78-78

罪刑法定原则是刑法三大原则之一,明确指出＂法无明文规定不为罪,法无明文规定不受罚＂的内容。然而随着网络媒体的发展,人们开始关注社会各类热点案件,并开始以自己的认识对案件始末及其进展进行评判,民意逐渐渗透到司法实践当中。甚至有时会看到民意主导审判的情形出现,此时公平正义与民意在司法实践中就需要认真考量。  相似文献