title: Hydroisomerization of n-dodecane over Pt/Al-MCM-48 catalysts.
abstract: The objective of this study is to evaluate the catalytic potential of Pt/Al-MCM-48 catalysts in hydroisomerization of n-dodecane. The effects of the Si/Al ratio and platinum loading on the acid characteristics of Al-MCM-48 and the catalytic performance in n-dodecane hydroisomerization were analyzed. The catalysts were characterized by X-ray diffraction, nitrogen adsorption, infrared spectroscopy of pyridine adsorption, and temperature programmed desorption of ammonia. The number of weak strength acid sites on Al-MCM-48 increased with 0.5 wt% platinum loading. The weak strength acid sites of Pt/Al-MCM-48 catalysts were ascribed to Lewis acid sites, which can be confirmed by NH3-TPD and FTIR spectra of pyridine adsorption. Iso-dodecane can be produced with high selectivity in n-dodecane hydrosisomerization over Pt/Al-MCM-48 catalysts. This is attributed to the mild acidic properties of Pt/Al-MCM-48 catalysts.
authors.forename: Soyoung
authors.initials: S
authors.lastname: Yun
authors.forename: Young-Kwon
authors.initials: YK
authors.lastname: Park
authors.forename: Soon-Yong
authors.initials: SY
authors.lastname: Jeong
authors.forename: Jeongsik
authors.initials: J
authors.lastname: Han
authors.forename: Jong-Ki
authors.initials: JK
authors.lastname: Jeon