Hydroisomerization of hexadecane over platinum supported on EU-1/ZSM-48 intergrowth zeolite catalysts. Issue 22 (10th October 2016)

• Record Type: Journal Article
• Authors: Zhang, Miao; Li, Chuang; Chen, Yujing; Tsang, Chi-Wing; Zhang, Qiumin; Liang, Changhai
• Is Part Of: Catalysis science & technology. Volume 6:Issue 22(2016)
• Page Start: 8016
• Page End: 8023
• Publication Date: 2016-10-10
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/c6cy01695b
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : A composite co-crystalline zeolite Eu-1/ZSM-48, as excellent support for hydroisomerization, was synthesized by a hydrothermal method. Abstract : A composite co-crystalline zeolite Eu-1/ZSM-48 was synthesized by a hydrothermal method. The composite materials consist of crystals with intergrowth between the EU-1 (EUO framework type) zeolite and ZSM-48 (MRE framework type) zeolite. The physicochemical properties of EU-1, ZSM-48 and EU-1/ZSM-48 were identified with respect to their crystallinity, textural parameters and acidity by means of X-ray diffraction, N2 adsorption–desorption analysis, scanning electron microscopy, temperature-programmed desorption of ammonia and pyridine adsorption infrared spectroscopy. The catalytic performance of different composite zeolite loaded platinum-based catalysts was studied through the hydroisomerization of hexadecane to isohexadecane as a probe reaction under various reaction conditions. The results indicated that the best performance was obtained over EU-1/ZSM-48 even though EU-1 showed the highest conversion and ZSM-48 showed the highest selectivity. The catalytic performance of EU-1/ZSM-48-200 was significantly different from that of ZSM-48-200 which possessed the same bulk SiO2 /Al2 O3 . The catalytic performance of the EU-1/ZSM-48 intergrowth zeolite improved dramatically compared with the mechanical mixture of pure zeolites. The acidity of the intergrowth zeolite was favorable for the catalytic hydroisomerization of n -hexadecane.