物理化学学报2012，Vol.28Issue(8)：1803-1808,6.DOI:10.3866/PKU.WHXB201205211
水+甲烷系统的气液相边界曲线和临界线
Gas-Liquid Phase Boundary Lines and Critical Curve for the Water+Methane System
田玉芹 1田宜灵 2赵林 3朱荣娇 1马超3
作者信息
- 1. 长江大学石油工程学院,湖北荆州434023
- 2. 中国石油化工股份有限公司胜利油田采油工艺研究院,山东东营257000
- 3. 天津大学理学院化学系,天津300072
- 折叠
摘要
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 methnane and water is very large.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Key words
Water+methane system/Phase boundary line/Critical curve/Henry coefficient/Partial molar solution enthalpy/Partial molar solution entropy分类
化学化工引用本文复制引用
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线[J].物理化学学报,2012,28(8):1803-1808,6.
