Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5365873 | Applied Surface Science | 2008 | 8 Pages |
Abstract
The ethylene adsorption of Turkey clinoptilolite-rich tuff from Gordes and Bigadic region of western of Anatolia and their exchanged forms (K+, Na+ and Ca2+) were investigated. The clinoptilolite samples were characterized using XRD, TG-DTA and nitrogen adsorption methods. Adsorption isotherms for ethylene on natural and modified forms of both adsorbents at 277Â K and 293Â K were obtained at pressures up to 38Â kPa. Uptake of ethylene increased as Na-CLNÂ <Â Ca-CLNÂ <Â K-CLNÂ <Â Natural CLN for Gordes zeolite at 277Â K, 293Â K and for Bigadic zeolite at 277Â K. For Bigadic zeolites at 293Â K, uptake of ethylene increased in the order Ca-CLNÂ <Â Na-CLNÂ <Â K-CLNÂ <Â Natural CLN. It was found that ethylene adsorption capacity of Bigadic clinoptilolite samples was much greater than Gordes clinoptilolite samples except K+ modified forms at both temperatures. These results show that both natural clinoptilolites have a considerable potential for the removal of ethylene.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Burcu ErdoÄan, Meryem Sakızcı, ErtuÄrul YörükoÄulları,