Open AccessDeep hydrodesulfurization of FCC gasoline and gas oil cuts: Comparison of CO effect, a by-product from biomass
Author(s) -
Florian Pelardy,
M. Philippe,
Frédéric Richard,
Antoine Daudin,
Élodie Devers,
Damien Hudebine,
Sylvette Brunet
Publication year - 2016
Publication title -
comptes rendus chimie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.653
H-Index - 76
eISSN - 1878-1543
pISSN - 1631-0748
DOI - 10.1016/j.crci.2015.12.006
Subject(s) - hydrodesulfurization , dibenzothiophene , gasoline , chemistry , sulfur , fluid catalytic cracking , hydrodenitrogenation , catalysis , sulfide , organic chemistry , raw material , biomass (ecology) , nuclear chemistry , geology , oceanography
International audienceRegarding the composition of the various feedstocks which should be hydrotreated in order to obtain fuels with amount of sulfur less than 10 wt ppm, we have shown that the presence of traces of CO, a by-product from lignocellulosic biomass feedstock conversion, inhibited the transformation of model compounds representative of FCC gasolines and gas oils over CoMo-based sulfide catalysts. Thus, this effect is more significant in the presence of 2-methylthiophene and 2,3-dimethylbut-2-ene representative of a FCC gasoline than in the presence of dibenzothiophene and 4,6-dimethyldibenzothiophene representative of a straight run gas oil, even if the operating conditions are not the same. This effect is attributed to phenomena of competitive adsorption between sulfur compounds, alkenes and CO on the catalyst surface
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