| 水+甲烷系统的气液相边界曲线和临界曲线 |
| |
| 引用本文： | 田玉芹,田宜灵,赵林,朱荣娇,马超. 水+甲烷系统的气液相边界曲线和临界曲线[J]. 物理化学学报, 2012, 28(8): 1803-1808. DOI: 10.3866/PKU.WHXB201205211 |
| |
| 作者姓名： | 田玉芹 田宜灵 赵林 朱荣娇 马超 |
| |
| 作者单位： | 1. College of Petroleum Engineering, Yangtze University, Jingzhou 434023, Hubei Province, P. R. China; 1§Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China;2. Institute of Production Technology, Shengli Oilfield Company, China Petroleum & Chemical Corporation, Dongying 257000, Shandong Province, P. R. China |
| |
| 摘 要： | 采用带有蓝宝石视窗和磁力搅拌的可变体积高压斧得出了水+甲烷系统的气液相边界曲线和临界曲线. 实验温度为433.0-633.0 K, 实验压力为30.00-300.00 MPa. 实验确定了甲烷在富水区的亨利系数, 结果显示, 在433.0-603.0 K的温度范围内, 此亨利系数随着温度的升高而下降. 本文还研究了甲烷+水系统的气液分配比以及偏摩尔溶解焓和偏摩尔溶解熵数据. 结果发现, 甲烷和水的内聚能密度差别很大.
|
| 关 键 词： | 水+甲烷系统 相边界曲线 临界曲线 亨利系数 偏摩尔溶解焓 偏摩尔溶解熵 |
| 收稿时间： | 2012-03-07 |
| 修稿时间： | 2012-05-21 |
Gas-Liquid Phase Boundary Lines and Critical Curve for the Water+Methane System |
| |
| TIAN Yu-Qin,TIAN Yi-Ling,§ ZHAO Lin,ZHU Rong-Jiao,§, MA Chao. Gas-Liquid Phase Boundary Lines and Critical Curve for the Water+Methane System[J]. Acta Physico-Chimica Sinica, 2012, 28(8): 1803-1808. DOI: 10.3866/PKU.WHXB201205211 |
| |
| Authors: | TIAN Yu-Qin TIAN Yi-Ling § ZHAO Lin ZHU Rong-Jiao § MA Chao |
| |
| Affiliation: | 1. College of Petroleum Engineering, Yangtze University, Jingzhou 434023, Hubei Province, P. R. China; 1§Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China;2. Institute of Production Technology, Shengli Oilfield Company, China Petroleum & Chemical Corporation, Dongying 257000, Shandong Province, P. R. China |
| |
| Abstract: | The isothermal gas-liquid phase boundary lines and critical curve were determined for the water+methane system.Experiments were performed in a high-pressure volume-variable autoclave with a sapphire window and magnetic stirring.The temperature range was from 433.0 to 633.0 K and pressure from 30.00 to 300.00 MPa.Henry coefficients of dilute methane solutions were determined;the results show that these coefficients decrease with increasing temperature in the range from 433.0 to 603.0 K.The equilibrium gas-liquid ratios,partial molar solution enthalpy,and partial molar solution entropy were also calculated.The results show that the difference in the cohesive energy density between methane and water is very large. |
| |
| Keywords: | Water+methane system Phase boundary line Critical curve Henry coefficient Partial molar solution enthalpy Partial molar solution entropy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
|
点击此处可从《物理化学学报》下载全文 |
|
