TY - JOUR
T1 - The effect of cerium promoted on Ni-Mo/Al2O3in oxygen adsorption isotherm and oxidative desulfurization study
AU - Rachmawati, Dwi Endah
AU - Susanto, Bambang Heru
AU - Nasikin, Mohammad
N1 - Publisher Copyright:
© 2023 Author(s).
PY - 2023/9/12
Y1 - 2023/9/12
N2 - Cerium is widely known as oxygen storage, but the information about its isotherm adsorption is very limited. In this study, the oxygen isotherm adsorption of cerium promoted Ni-Mo/Al2O3 catalyst and its effect to the oxidative desulfurization process were investigated. The catalyst was synthesized by using wet impregnation method. The metal content was analyzed by using X-ray fluorescence spectrometer. The surface property was characterized by BET surface area and pore volume analyzer. The oxygen adsorption capacity over various loadings of cerium promoted in the catalyst at certain pressure ranges was studied at room temperature condition. The catalyst activity was tested in the oxidative desulfurization reaction. Dibenzothiophene in n-heptane solution was used as the model fuel and H2O2/formic acid as the oxidant. The reaction was conducted at various temperatures and cerium loadings. The result showed that oxygen adsorption capacity and the DBT conversion were increased along with the number of cerium loaded to the catalyst. The highest oxygen adsorption capacity was showed by Ce(3.5%)-Ni-Mo/Al2O3 catalyst of 101.1 μmol/g cat. Moreover, this catalyst could convert 85.0% of DBT to become sulfone at temperature 60°C in the oxidation desulfurization process.
AB - Cerium is widely known as oxygen storage, but the information about its isotherm adsorption is very limited. In this study, the oxygen isotherm adsorption of cerium promoted Ni-Mo/Al2O3 catalyst and its effect to the oxidative desulfurization process were investigated. The catalyst was synthesized by using wet impregnation method. The metal content was analyzed by using X-ray fluorescence spectrometer. The surface property was characterized by BET surface area and pore volume analyzer. The oxygen adsorption capacity over various loadings of cerium promoted in the catalyst at certain pressure ranges was studied at room temperature condition. The catalyst activity was tested in the oxidative desulfurization reaction. Dibenzothiophene in n-heptane solution was used as the model fuel and H2O2/formic acid as the oxidant. The reaction was conducted at various temperatures and cerium loadings. The result showed that oxygen adsorption capacity and the DBT conversion were increased along with the number of cerium loaded to the catalyst. The highest oxygen adsorption capacity was showed by Ce(3.5%)-Ni-Mo/Al2O3 catalyst of 101.1 μmol/g cat. Moreover, this catalyst could convert 85.0% of DBT to become sulfone at temperature 60°C in the oxidation desulfurization process.
UR - http://www.scopus.com/inward/record.url?scp=85176736882&partnerID=8YFLogxK
U2 - 10.1063/5.0166127
DO - 10.1063/5.0166127
M3 - Conference article
AN - SCOPUS:85176736882
SN - 0094-243X
VL - 2827
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
IS - 1
M1 - 030029
T2 - 11th International Conference on Applied Science and Technology 2022, ICAST 2022
Y2 - 13 June 2022 through 14 June 2022
ER -