PETR 44 |
| Using high vacuum BET weight adsorption instrument, around the room temperature, we measured the adsorption isotherms of Zeolite L adsorb cyclohexane are synthesized by our laboratory). The results show: (1) Adsorption isotherms of zeolites KL and zeolities HL through H+ ion exchange adsorb cyclohexane belongs to the Langmuir Model. Comparing the adsorption isotherms and desorption isotherms, we can conclude that the lay circle doesn't exist, and the fact is consistent with zeoliteL's one-dimensional form. (2) The determination of the adsorption isotherms under varies temperatures proclaim that with the rising of the adsorption temperature, cyclohexane's adsorption quantity reduced. Also, with the rising of the adsorption temperature, the shape of the adsorption isotherms tends to be similar as the shape of Langmuir model at high temperature. (3) The zeolite L via H+ ion exchange shows larger adsorption quantity than the original zeolite KL. This is consistent with the theory that the size of H+ is smaller than that of K+, which will increase the hole bulk. (4) Under the same synthesize conditions, the adsorption quantity of the zeoliteL adsorb cyclohexane monomolecular film, which are synthesized by our lab in small kettles(100ml), are the same as that of the zeoliteL which are synthesized by indusrial amplification experiment.(20 liter). The result shows that the success of the amplification experiment from the aspect of adsorbality. |
|
Division of Petroleum Chemistry Poster Session
8:30 AM-10:30 AM, Monday, 11 September 2006 Moscone Center -- Hall D, Poster
Division of Petroleum Chemistry |