Deactivation of mordenite-type zeolite catalyst by HCl for the reduction of NOx with NH3
SCIE
SCOPUS
- Title
- Deactivation of mordenite-type zeolite catalyst by HCl for the reduction of NOx with NH3
- Authors
- Park, GG; Chae, HJ; Nam, IS; Choung, JW; Choi, KH
- Date Issued
- 2001-11-01
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- The stability of mordenite-type zeolite catalyst by hydrochloric acid was examined to remove NOx contained in the flue gas from an industrial waste incinerator. Cu ion-exchanged mordenite (CuHM) catalyst was is easily deactivated under selective catalytic reduction reaction conditions when water and HCl simultaneously exist in the flue gas. The deactivation of CuHM catalyst is mainly caused by the evaporation of Cu ions from the framework of mordenite structure. To enhance the acidic tolerance of the catalyst, the Si/Al ratio of the catalyst was controlled and second metals were added to the catalyst. Such a modification significantly improved the deactivation of the catalyst by HCl, commonly contained in the flue gas from the industrial waste incinerator as well as NO. (C) 2001 Elsevier Science B.V. All rights reserved.
- Keywords
- selective catalytic reduction of NOx; deactivation of CuHM by HCl; Si/Al ratio; HCl tolerance; nuclear magnetic resonance; X-ray absorption near edge structure; ION-EXCHANGED MORDENITE; HYDROTHERMAL STABILITY; HYDROCARBONS; CERIUM; OXIDE; SO2
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19322
- DOI
- 10.1016/S1387-1811(01)00350-X
- ISSN
- 1387-1811
- Article Type
- Article
- Citation
- MICROPOROUS AND MESOPOROUS MATERIALS, vol. 48, no. 1-3, page. 337 - 343, 2001-11-01
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