Hydrocracking of Fischer–Tropsch Paraffin Mixtures over Strong Acid Bifunctional Catalysts to Engine Fuels | Zendy

Szabina Tomasek | Zendy; Ferenc Lónyi | Zendy; József Valyon | Zendy; Anett Wollmann | Zendy; Jenő Hancsók | Zendy

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Hydrocracking of Fischer–Tropsch Paraffin Mixtures over Strong Acid Bifunctional Catalysts to Engine Fuels

Author(s) -

Szabina Tomasek,

Ferenc Lónyi,

József Valyon,

Anett Wollmann,

Jenő Hancsók

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c02711

Subject(s) - catalysis , mordenite , diesel fuel , platinum , bifunctional , jet fuel , raw material , gasoline , zeolite , chemistry , chemical engineering , carbon fibers , organic chemistry , materials science , composite material , composite number , engineering

Biomass-based Fischer-Tropsch paraffin mixtures, having C 16 -C 46 and C 11 -C 45 carbon number range, were hydrocracked over platinum-supported beta, ZSM-5, and mordenite catalysts. The aim of the study was to investigate the effects of the feedstock composition, the process parameters, and the catalyst properties (acidity and zeolite structure) on the C 21 + conversions, the product yields, and the isoparaffin contents. It was stated that lower C 21 + conversions and higher JET and diesel fuel yields can be obtained for feedstock comprising C 11 -C 45 hydrocarbons. Under identical reaction conditions, the activity order of the catalysts was Pt/H-beta > Pt/H-ZSM-5 > Pt/H-mordenite. This order corresponds to the relative number of accessible acid sites. Among the tested catalysts, platinum-supported beta zeolite showed the highest hydroisomerization activity; meanwhile, in the pores of Pt/ZSM-5 and Pt/H-mordenite, diffusion constraints were observed. As the product of hydrocracking valuable gasoline, JET and diesel fuels having high hydrogen content and excellent burning properties were produced.

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