콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Optimizing Structural Properties of Zeolite Support to Enhance Branched Isomer Yield in Gasoline Range in Fischer-Tropsch Synthesis Reaction
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2026-01
- 저자명 Kim, J.-C.,* Bae, D., Son, S., Lee, J., Kim, S. H., Lee, D., Park, J.-I., Kim, K. D., and Cho, K*
- 학술지명 Catalysis Today
- 발행처명 ELSEVIER
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 9
- 논문 다운로드 링크(외부) https://www.sciencedirect.com/science/article/pii/S0920586125003670
논문 초록 (Abstract)
In Fischer-Tropsch synthesis reaction using cobalt nano-catalyst, the role of zeolite nanosponge containing Brønsted-Lowry acid sites at mesopore walls was revealed to be important to enhance the yield of isomer hydrocarbon in gasoline range. The acid sites on the external surface where the product shows facile diffusion facilitate isomerization action and cracking. By performing systematic investigation, we confirmed that the yield of branched isomers in gasoline range (i-C5-11) gradually increases with increasing the external surface area of the MFI zeolite. This result indicates that the large external surface area is good for high dispersion of cobalt nanoparticles and high concentration of the external acid sites, consequently advantageous to form i-C5-11. Meanwhile, the i-C5-11 selectivity is varied significantly with respect to the acid concentration; the optimal Si/Al ratio, which determines the concentration of Brønsted-Lowry acid sites, was found to be 50, yielding a maximum i-C5-11 fraction of 25.6%. Consequently, the zeolite MFI nanosponge synthesized using di-quaternary ammonium surfactant, with Si/Al=50 is the most suitable supporting material for Co nanoparticles in Fischer-Tropsch synthesis reaction for the purpose producing high-value gasoline fuels.
