| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2451 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Reaction kinetics for removing NOx from diesel engine by ethanol over Ag/Al2O3 catalyst |
| 초록 |
Reaction kinetics for OHC/SCR reaction system with ethanol over Ag/Al2O3 catalyst has been developed on the basis of the possible reactions observed under the variety of the feed gas conditions. NH3, CH3CHO and HOCH2CH2NH2 have been identified as the primary reaction intermediates for the progress of OHC/SCR reaction. The rate expressions based upon LHHW mechanism were derived with the surface reaction as the rate determining step. The model with estimated kinetic parameters well describes the experimental data such as the conversions of NO and C2H5OH as well as the formation of N2, NH3, CH3CHO and HOCH2CH2NH2 with respect to the reactor space velocity, reaction temperatures and the C1/NOx feed ratio. After successful validation of the reactor model, the axial concentration profiles within the reactor were used for the optimal design of a dual-bed catalyst system to enhance the deNOx performance of the ethanol/SCR by best utilizing the reaction intermediates in the rear bed following the Ag/Al2O3 in the front bed. |
| 저자 |
김문규1, 김평순1, 권혁재2, 남인식1, 조병권1, 오세혁3
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| 소속 |
1포항공대, 2삼성종합기술원, 3General Motors Global R&D Center |
| 키워드 |
NO reduction; Ag/Al2O3; Ethanol; Catalytic reaction kinetics; Numerical simulation
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| E-Mail |
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| 원문파일 |
초록 보기 |
