학회 | 한국화학공학회 |
학술대회 | 2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
권호 | 19권 2호, p.2125 |
발표분야 | 촉매 및 반응공학 |
제목 | Ni/MgO-MgAl2O4 catalysts with bimodal pore structure for steam-CO2-reforming of methane |
초록 | Ni-base structured catalysts have been widely used on the steam CO2 reforming of methane for the production of syngas in GTL-FPSO. Much efforts are still necessary to acheive high catalytic activity by elaborate control over the morphology and structure of nano-structured catalysts. Bimodal pore catalyst supports are reported to be high catalytic activity and the active phase can ve dispersed well throughout the pore system, thus making possible to obtain a large active surface area per unit weigh. For this study, bimodal catalyst supports consisting of MgO-MgAl2O4 composite with meso-macro pore structure were fabricated from decomposition of pellet mixtures of MgCO3 synthesized under a supercritical carbon dioxide. After Ni impregnation, the Ni-based structured catalysts were carried on structural and catalytic activity studies at various conditions. As a result, an enhancement in catalytic activity of catalysts with bimodal structures by the conversion of CH4, CO2 was found due to the enhanced dispersion and mass transfer in the pores. |
저자 | 김병혁1, 양은혁2, 염희철2, 문동주2, 김상우2 |
소속 | 1KIST / 충남대, 2KIST |
키워드 | catalyst; reforming; bimodal |
원문파일 | 초록 보기 |