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Effect of CO 2 on catalytic hydrotreatment of gas‐oil
Author(s) -
Bezergianni Stella,
Dagonikou Vasiliki
Publication year - 2015
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.22188
Subject(s) - flue gas desulfurization , catalysis , chemistry , hydrodesulfurization , hydrogen , methane , fraction (chemistry) , petroleum , raw material , chemical engineering , waste management , organic chemistry , engineering
The aim of this study is to investigate the effect of CO 2 on catalytic hydrotreatement of gas‐oil to evaluate the potential of catalytic co‐ hydroprocessing of petroleum fractions with liquid biomass. A total of six experiments were conducted under low (330 °C), mild (345 °C) and severe (360 °C) operating conditions employing straight run gas‐oil as the petroleum fraction feedstock. During three of these experiments CO 2 was artificially added to the reaction system to assess its impact on the associated catalytic reactions over a commercial CoMo/Al 2 O 3 catalyst. The dedicated experiments revealed a suspending role of CO 2 on hydro‐ desulfurization (HDS), hydro‐denitrogenation (HDN), and saturation reactions, which is attributed to the subsequent hydrogen partial pressure reduction of the reacting system caused by the competitive water gas‐shift and methane reforming reactions.