Kinetics of simultaneous hydrodesulfurization and hydrodenitrogenation reactions using CoMoP/Al2O3 and NiMoP/Al2O3

de Souza Guedes Junior, Gentil; Gigante Nascimento, Idia; Ahmad, Mueed; Killeen, Cormac; Boscoboinik, J. Anibal; Trelewicz, Jason; Pinto, José Carlos; Dorneles de Mello, Matheus; Antunes Pereira da Silva, Mônica

doi:10.1016/j.ces.2023.118725

Kinetics of simultaneous hydrodesulfurization and hydrodenitrogenation reactions using CoMoP/Al₂O₃ and NiMoP/Al₂O₃

Journal Article · Fri Apr 07 00:00:00 EDT 2023 · Chemical Engineering Science

DOI:https://doi.org/10.1016/j.ces.2023.118725· OSTI ID:2284076

de Souza Guedes Junior, Gentil ^[1]; Gigante Nascimento, Idia ^[1]; Ahmad, Mueed ^[2]; ^[3]; ^[4]; ^[3]; Pinto, José Carlos ^[1]; Dorneles de Mello, Matheus ^[5]; Antunes Pereira da Silva, Mônica ^[1]

Universidade Federal do Rio de Janeiro (Brazil)
Stony Brook Univ., NY (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Stony Brook Univ., NY (United States)
Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Universidade Federal do Rio de Janeiro (Brazil); Brookhaven National Laboratory (BNL), Upton, NY (United States)

Hydrodesulfurization (HDS) is a key reaction to achieve diesel production at the specified low sulfur levels and is highly affected by a competing reaction involving nitrogen removal through hydrodenitrogenation (HDN). This work evaluated kinetic parameters of simultaneous reactions of HDS of dibenzothiophene (DBT) and HDN of quinoline (Q) using CoMoP/Al₂O₃ and NiMoP/Al₂O₃ catalysts under operational conditions that allow a wide range of reagent conversions. Estimated parameters were evaluated using rigorous statistical 2 analysis. Good fits for the evaluated experimental data were provided by both power-law and Langmuir-Hinshelwood models. Further, turnover frequency values highlight adsorption and competition effects between nitrogen-containing compounds and sulfur-containing compounds. NiMoP catalyst showed higher hydrogenating power than CoMoP, with larger absolute value of the estimated adsorption enthalpy (-120 kJ.mol^-1 for NiMoP and -75 kJ.mol^-1 for CoMoP), suggesting strong adsorption of nitrogen compounds. A catalyst with more hydrogenating power is also more capable of performing both HDN and HDS reactions simultaneously.

View Accepted Manuscript (DOE)

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0012704

OSTI ID:: 2284076

Alternate ID(s):: OSTI ID: 2000087

Report Number(s):: BNL--225264-2024-JAAM

Journal Information:: Chemical Engineering Science, Journal Name: Chemical Engineering Science Vol. 275; ISSN 0009-2509

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Figures / Tables (17)

Table 3: Part 1(p. 23)

Table 3: Part 2(p. 24)

Table 3: Part 3(p. 25)

Similar Records

Simultaneous hydrodenitrogenation and hydrodesulfurization of distillate fuels related to coal/petroleum coprocessing

Conference · Thu Jul 01 00:00:00 EDT 1999 · OSTI ID:20082388

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CoMoP/Al2O3
Dibenzothiophene
NiMoP/Al2O3
deep hydrodesulfurization
kinetic modeling
quinoline
statistical analysis