화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2018년 가을 (10/24 ~ 10/26, 대구 EXCO)
권호 24권 2호, p.1973
발표분야 촉매 및 반응공학(Catalysis and Reaction Engineering)
제목 Effect of hierarchical pore structure on steam catalytic cracking of 1-methyl naphthalene over Ni/Al2O3 catalysts
초록 The effect of hierarchical pore structure on steam catalytic cracking of 1-methyl naphthalene over Ni/Al2O3 catalysts has been studied. The macropores in Al2O3 support played an important role in enhancing the big reactant diffusion to the active sites, producing a higher cracking and over cracking products. Moreover, using macroporous alumina also decreases coke amount condensed on surface of catalysts, compared to mesoporous alumina. Based on product distribution of steam catalytic cracking of 1-methyl naphthalene carried out at 500oC in a fixed-bed reactor, there were two main reactions occurring: steam reforming and catalytic cracking. Both of two reactions are accelerated in presence of hierarchical macroporous structure of alumina, resulting in higher 1-methyl naphthalene conversion. The introduction of potassium onto Ni/Al2O3 also promoted steam reforming through the immigration of potassium from alumina to nickel surface.
저자 Lien Do-Thi, Nguyen Phu Huy, 우홍안, 신은우
소속 울산대
키워드 촉매 및 반응공학
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