| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.241 |
| 발표분야 |
[주제 3] 미세먼지 |
| 제목 |
Enhanced CH4 oxidation activity of Pd/Pt bimetal catalysts: Effects of Pd:Pt ratio and exhaust conditions |
| 초록 |
The excessive use of natural gas, primarily CH4, demands controlling slipped CH4 emissions in the after-treatment catalytic system. However, the CH4 oxidation requires a high reaction temperature due to its stable C-H bonds, where water in the feed also severely inhibits catalytic activity. Motivated by this, we provide a parametric investigation for designing an effective methane oxidation catalyst in the typical catalytic formulation based on Pd/Pt supported on alumina. The catalytic performance was characterized as a function of the Pd/Pt molar ratio (1:0, 9:1, 3:1, 1:1, 1:3, 1:9 and 0:1) in the realistic variation of reaction environments (from methane-rich to methane-lean feed). At this KIChE spring conference, we will present the catalytic behavior of methane oxidation with systematic observations from the packed-bed reactor, surface analysis and computational calculations of density functional theory (DFT). The enhanced methane oxidation activity will be discussed from the standpoint of the synergetic impact of PdO-Pt active sites on oxygen adsorption, methane reactivity and water inhibition. |
| 저자 |
박지석1, 김동준2, 김영진3, 허일정3, 김민규4, 강성봉1
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| 소속 |
1광주과학기술원, 2The Ohio Statte Univ., 3한국화학(연), 4영남대 |
| 키워드 |
촉매(Catalyst) |
| E-Mail |
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| 원문파일 |
초록 보기 |
