263~373 K温度区间2-氯-3,3,3-三氟丙烯饱和蒸气压的实验研究  

Measurement of Saturated Vapor Pressure of 2-Chloro-3,3,3-Trifluoropropene at 263~373 K

作　　者：张伟[1] 杨志强[1] 吕婧[1] 吕剑[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《高校化学工程学报》2014年第3期449-453,共5页Journal of Chemical Engineering of Chinese Universities

基　　金：陕西省"13115"科技创新工程重大科技专项(2010ZDKG-90)

摘　　要：采用静态法，测定了2-氯-3,3,3-三氟丙烯（HCFO-1233xf）的饱和蒸气压97个数据点，温度263.15~372.90 K，温度不确定度小于±2 mK，压力不确定度小于±1.2 kPa，并用 Antoine 方程 lnP=A-B/（T＋C）进行关联，确定了蒸气压方程的三个参数 A、B、C 的值分别为15.119、3070.575和7.198。Antoine方程计算得到的饱和蒸气压与实验数据吻合较好，相对误差均在±1％以内。通过 Clausius-Clapeyron方程计算得到 HCFO-1233xf 在263.15~372.90 K 的平均摩尔蒸发热为24363.31 J·mol-1，通过 Antoine 方程计算得到的常压沸点为285.22 K。Saturated vapor pressures of 2-chloro-3,3,3-trifluoropropene （HCFO-1233xf） were measured in a temperature range of 263.15~372.90 K by a static method. A total of 97 experimental points were obtained. The temperature and pressure fluctuation were within 2 mK and 1.2 kPa, respectively. The measured saturated vapor pressures and temperature were correlated by Antoine equation lnP=A-B/（T＋C）, and the constants of the equation were determined as A=15.119, B=3070.575 and C=7.198. The relative deviations between the calculated results from the Antoine equation and the experimental data are less than ±1%. The average molar evaporation heat of HCFO-1233xf was also estimated at 263.15~372.90 K by Clausius-Clapeyron equation which is 24363.31 J·mol-1. The normal boiling point is 285.22 K calculated from the Antoine equation.

关 键 词：2-氯-3 3 3-三氟丙烯 饱和蒸气压 Antoine方程 

分 类 号：TK121[动力工程及工程热物理—工程热物理] TK123[动力工程及工程热物理—热能工程]