Aromatization of n-hexane over Ga, Mo and Zn modified H-ZSM-5 zeolite catalysts

Autor:	Themba E. Tshabalala, Michael S. Scurrell
Rok vydání:	2015
Předmět:	Process Chemistry and Technology Inorganic chemistry Aromatization chemistry.chemical_element General Chemistry Zinc Catalysis Metal Hexane chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Gallium Selectivity Zeolite
Zdroj:	Catalysis Communications. 72:49-52
ISSN:	1566-7367
DOI:	10.1016/j.catcom.2015.06.022
Popis:	n -Hexane aromatization was investigated at 500 °C on parent and metal (i.e. Ga, Mo and Zn) modified H-ZSM-5 zeolite catalysts. Conversion reached 88% over H-ZSM-5 and was stable. Addition of metal resulted in lower conversion ( 35%) and Zn/H-ZSM-5 (> 40%) while H-ZSM-5 and Mo/H-ZSM-5 showed higher cracking activity. Gallium and zinc favored aromatization. At 600 °C a decrease in activity with increasing TOS was observed. A decrease in aromatics selectivity was also observed. The aromatics selectivity with increase in TOS of Ga/H-ZSM-5 (43–27%) and Mo/H-ZSM-5 (35–27%) catalysts was higher than for Zn/H-ZSM-5 (46–7%).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8ffe58a31bde3d7b6e4ac92520fe52fc https://doi.org/10.1016/j.catcom.2015.06.022 Zobrazit plný text záznamu Full Text from ScienceDirect