高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (8): 1258.

• 论文 • 上一篇    下一篇

二组分气体在固体上吸附的研究(Ⅵ)──不同覆盖度下的二组分气体在灯黑上的吸附

戴闽光, 缪蕊平   

  1. 福州大学化学系, 福州 350002
  • 收稿日期:1995-07-13 出版日期:1996-08-24 发布日期:1996-08-24
  • 通讯作者: 戴闽光,女,63岁,教授.
  • 作者简介:戴闽光,女,63岁,教授.
  • 基金资助:

    国家自然科学基金

Studies on Binary Gas Solid Adsorption(Ⅵ)──Binary Gas Adsorption on Lamp Black with Different Surface Coverages

DAI Min-Guang, MIAO Rui-Ping   

  1. Department of Chemistry, Fuzhou University, Fuzhou 350002
  • Received:1995-07-13 Online:1996-08-24 Published:1996-08-24

PDF (PC)

被引次数

8

摘要： 通过测定不同覆盖度下的甲苯-正己烷、苯-正己烷、丙酮-正已烷和正戊烷-正己烷4个二组分气体在灯黑上的组成吸附等温线,发现它们有着共同的规律:随着覆盖度的增加,各体系的组成吸附等温线都向上靠近它们各自的气液平衡曲线。因此,基本上可以把二组分的气相与吸附相的平衡看成二组分的气液平衡,4个体系的组成吸附等温线基本上都可以通过理想溶液的相对挥发度方程式模拟得到。

关键词: 二组分气固吸附, 吸附等温线, 灯黑, 表面覆盖度

Abstract: The composition adsorption isotherms(ya~xg curve) for toluene-n-hexane, benzene-n-hexane,acetone-n-hexane and n-pentane-n-hexane vapor mixutres on lamp black with different surface coverages(θ)at 25℃ were measured.The experimental results indicate that the ya~xg curves approach gradually up to their binary liquid vapor equilibrium curve with increasing surface coverage.Therefore,the binary gas phase and adsorption phase at equilibrium are similarly with the binary gas liquid phase equilibrium.The composition adsorption isotherms of the four binary gases adsorption on lamp black systems are in accordancl with simulated equation of relative volatility.

Key words: Binary gas solid adsorption, Adsorption isomers, Lamp black, Surface coverage

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