| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.2564 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
DeNOx Performance of the Ceramic Fiber Substrate on Selective Catalytic Reduction by NH3 |
| 초록 |
Cordierite substrate has been commonly used in the catalytic converter mainly due to its strong thermal and physical durability. However, the development of a lighter monolith reactor compared to the present ceramic substrate is required to improve the fuel efficiency of automotive engines. In the present study, the deNOx performance of new ceramic fiber substrate washcoated with CuZSM5 or V2O5/TiO2 catalyst has been examined. The NOx removal activity of the ceramic fiber reactor is similar to that of cordierite one. However, the ceramic fiber reactor showed a poor hydrothermal stability when the reactor was treated in air with 10 % water at 700 oC for 24 h. However, the hydrothermal stability of the ceramic fiber reactor could be improved by pretreatment before washcoating the catalyst onto the channels of the reactor. Based upon the catalyst characterization study with XRD and SEM, the formation of crystalline AlPO4 included in the fiber substrate plays an important role for preventing the catalyst aging. |
| 저자 |
권혁재1, 김영진1, 백준현1, 남인식1, 정승문2, 이주형2
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| 소속 |
1포항공과대, 2LG화학 기술(연) |
| 키워드 |
Ceramic fiber substrate; SCR reaction; Hydrothermal stability; XRD; SEM
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| E-Mail |
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| 원문파일 |
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