| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.272 |
| 발표분야 |
[주제 6] 석유화학 |
| 제목 |
Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes |
| 초록 |
The removal of sulfur impurity from gasified petroleum coke is essential step to generate high purity hydrogens. In this study, we have studied desulfurization absorbents computationally and experimentally. First, we conducted DFT calculations to perform computational screening. Our screening data predicted copper oxides would be thermodynamically most active toward the desulfurization. Additionally, we developed porous Al2O3 support to enhance the diffusion resistance resulting in improving overall desulfurization performance. Our experimental results showed that macro-porous Al2O3 with copper oxides have distinguishable performance compared to the copper oxide supported by non-macro-porous Al2O3 due to improvement of the diffusion resistance. To reveal the CO production occured during the desulfurization of COS at low temperatures (~473 K), we additionally performed DFT simulation for COS absorption kinetics on various CuO surfaces. The simulation predicted CO generated from the dissociation of COS has a low adsorption energy than CO2 formation. These results suggest that the Cu-based desulfurization sorbent has potential catalytic activity for producing CO from COS dissociation. |
| 저자 |
배다솔1, 김동준2, 김유진1, 이승종3, 이진욱3, 윤용승3, 박노국1, 김민규1
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| 소속 |
1영남대, 2오하이오주립대, 3고등기술(연) |
| 키워드 |
분리기술(Separation Technology) |
| E-Mail |
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| 원문파일 |
초록 보기 |
