物理化学学报 >> 1989, Vol. 5 >> Issue (05): 604-607.doi: 10.3866/PKU.WHXB19890520

研究简报 上一篇    下一篇

微量吸附热量计的检测和硅胶浸湿热的测量

谭新意; 阎海科; 胡日恒   

  1. 中国科学院化学研究所强化采油和化学热力学实验室
  • 收稿日期:1988-03-03 修回日期:1988-11-16 发布日期:1989-10-15
  • 通讯作者:

TESTING OF A SORPTION MICROCALORIMETER AND MEASUREMENT OF IMMERSION HEATS OF SILICA GEL

Tan Xinyi; Yan Haike*; Hu Riheng   

  1. Oil Recovery and Chemical Thermodynamic Laboratory; Institute of Chemistry; Academia Sinica; Beijing
  • Received:1988-03-03 Revised:1988-11-16 Published:1989-10-15
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Abstract: A LKB 2107-030 sorption microcalorimeter has been installed and equipped with a microcomputer. The apparatus was tested with a standard reaction of TRIS and HCl. It was shown that this microcalorimeter is suitable for our proiect.
A silica gel was chosen as a model surface for studying adsorption of surfactants used in enhanced oil recovery. A TG analysis of it was done and was used to select its activation temperature. The immersion heats of the silica into water, toluene and heptane were measured using this microcalorimeter. Before every experiment, silica sample placed in batch cell was activated at 170 ℃ and 10~(-2) mmHg. The results are generally in agreement with those recently obtained by Leo A. Noll and Thomas E. Burchfield.