Journal
SEPARATION AND PURIFICATION TECHNOLOGY
Volume 31, Issue 1, Pages 41-45Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1383-5866(02)00150-8
Keywords
activation energy; dioxins; TPD technique
Categories
Ask authors/readers for more resources
Adsorption would be one of the most potential technologies for removal of dioxins from waste gas, but no equilibrium adsorption information of dioxins on adsorbents is available because of their low volatility. In this work, seven kinds of high silica zeolites such as Ag+-zeolite, Fe3+-zeolite, Cu2+-zeolite, Al3+-zeolite, zeolite, Ca2+-zeolite and Na+-zeolite, were prepared. The temperature-programmed desorption (TPD) technique was used to estimate desorption activated energy of dibenzofuran (non-chloro dioxins) on the high silica zeolites. Results showed that the peak temperatures of the TPD curves of dibenzo-p-furan on the zeolites, the Ag+-zeolite, the Fe3+-zeolite, the Cu2+-zeolite, and Al3+-zeolite were higher than those of dibenzo-p-furan on the Ca2+-zeolite and the Na+-zeolite at same heating rate. The desorption activated energy of dibenzo-p-furan on the Ag+-zeolite, the Fe3+-zeolite, the Cu2+- zeolite, and Al3+-zeolite were also higher than those of dibenzo-p-furan on the zeolite, the Ca2+-zeolite and the Na+-zeolite. (C) 2002 Elsevier Science B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available