Synthesis and characterization of hierarchical ZSM-5 zeolite using various templates as cracking catalysts

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Abstract

Attempt to hydrothermally synthesize hierarchical ZSM-5 zeolites (ZSM-5-h) through double template method has been carried out. In order to develop the structure of microporous ZSM-5 zeolite (ZSM-5-m), three different structure directing agents were used, i.e. TPAOH (t), ethylenediamine (en), and triethylenetetramine (teta), followed by dimethyl dialyl ammonium chloride acrylamide copolymer as mesopore directing agent. All samples were characterized using XRD, BET Surface Area Analyzer, and SEM. XRD pattern of ZSM-5-h/t showed the characteristic peaks of ZSM-5 at position 2θ of 7-9°and 22-25°. Otherwise, the XRD pattern of ZSM-5-h/en and ZSM-5-h/teta showed very weak peaks, indicating that ZSM-5 were not well formed. Nitrogen adsorption of ZSM-5-h/t exhibited hysteresis loop at P/P°0.7-0.9 indicating the presence of hierarchical mesoporous. SEM images of ZSM-5-h/t showed the characteristic of ZSM-5 which was hexagonal shape. Afterward, H/ZSM-5-h/t zeolite was prepared through ion exchange-treatment using 1 M ammonium nitrate solution, followed by calcination at 823 K to remove all ammonia and produced H/ZSM-5-h/t. This sample was further characterized using XRD and FTIR to observe its acidity. Preliminary test on H/ZSM-5-h/t as catalyst in cracking of n-hexadecane was conducted. As comparison, microporous ZSM-5-m was synthesized and tested under the same conditions to study the effect of different pore size on its activity in catalytic cracking of n-hexadecane. The result showed that ZSM-5-h/t delivered higher conversion than ZSM-5-m, 37.23 and 17.9 in % moles, respectively. It can be concluded that ZSM-5-h was more effective to be used in catalytic cracking of n-hexadecane.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
EditorsRatna Yuniati, Terry Mart, Ivandini T. Anggraningrum, Djoko Triyono, Kiki A. Sugeng
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417410
DOIs
Publication statusPublished - 22 Oct 2018
Event3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 - Bali, Indonesia
Duration: 26 Jul 201727 Jul 2017

Publication series

NameAIP Conference Proceedings
Volume2023
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
CountryIndonesia
CityBali
Period26/07/1727/07/17

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    Zahara, Z., Krisyuningsih, Y., Wibowo, W., Nurani, D. A., Rahayu, D. U. C., & Haerudin, H. (2018). Synthesis and characterization of hierarchical ZSM-5 zeolite using various templates as cracking catalysts. In R. Yuniati, T. Mart, I. T. Anggraningrum, D. Triyono, & K. A. Sugeng (Eds.), Proceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 [020088] (AIP Conference Proceedings; Vol. 2023). American Institute of Physics Inc.. https://doi.org/10.1063/1.5064085