TY - JOUR
T1 - Hydrotreating Reactivities of Atmospheric Residues and Correlation with Their Composition and Properties
AU - Cui, Qingyan
AU - Ma, Xiaoliang
AU - Nakano, Koji
AU - Nakabayashi, Koji
AU - Miyawaki, Jin
AU - Al-Mutairi, Adel
AU - Marafi, Abdulazim Mj
AU - Park, Joo Il
AU - Yoon, Seong Ho
AU - Mochida, Isao
N1 - Funding Information:
The authors acknowledge Japan Cooperation Center Petroleum (JCCP), the Kuwait Oil Company (KOC), and the Kuwait Institution for Scientific Research (KISR) for their support and collaboration on this joint project. Acknowledgement is also extended to Kuwait National Petroleum Company (KNPC) for the in-kind contribution and technical support.
Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/6/21
Y1 - 2018/6/21
N2 - In order to better understand the effects of composition and properties of atmospheric residues (AR) on their reactivities for hydrodesulfurization (HDS), hydrodenitrogenation (HDN), hydrodevanadium (HDV), hydrodenickel (HDNi), hydrodeasphaltene (HDAsp), and hydrodeconradson-carbon-residue (HDCCR) in the hydrotreating process, analysis and characterization of three ARs (AA-AR, AB-AR, and AM-AR) from Arabia crudes were conducted, and their hydrotreating reactivities were evaluated in a pilot unit over a catalyst system at 370 °C under a H2 pressure of 13.5 MPa by comparing the conversions of the various species and their rate constants on each catalyst. The overall reactivity of various species decreases in the order of vanadium species > sulfur species ≈ asphaltenes > nickel species > Conradson carbon residue precursor > nitrogen species, regardless of the sources of the ARs. Reactivities of the three ARs in HDS, HDV, and HDAsp increase in the order of AB-AR < AA-AR < AM-AR, while reactivities of the three ARs in HDNi, HDCCR, and HDN are similar. The higher nitrogen and asphaltenes concentrations and larger density of AR have strong and negative effects on the HDS, HDV, and HDAsp reactivities but no significant effect on the HDN, HDNi, and HDCCR reactivities. The B parameter obtained from electron spin resonance analysis can be a good index to predict the HDV reactivity of AR.
AB - In order to better understand the effects of composition and properties of atmospheric residues (AR) on their reactivities for hydrodesulfurization (HDS), hydrodenitrogenation (HDN), hydrodevanadium (HDV), hydrodenickel (HDNi), hydrodeasphaltene (HDAsp), and hydrodeconradson-carbon-residue (HDCCR) in the hydrotreating process, analysis and characterization of three ARs (AA-AR, AB-AR, and AM-AR) from Arabia crudes were conducted, and their hydrotreating reactivities were evaluated in a pilot unit over a catalyst system at 370 °C under a H2 pressure of 13.5 MPa by comparing the conversions of the various species and their rate constants on each catalyst. The overall reactivity of various species decreases in the order of vanadium species > sulfur species ≈ asphaltenes > nickel species > Conradson carbon residue precursor > nitrogen species, regardless of the sources of the ARs. Reactivities of the three ARs in HDS, HDV, and HDAsp increase in the order of AB-AR < AA-AR < AM-AR, while reactivities of the three ARs in HDNi, HDCCR, and HDN are similar. The higher nitrogen and asphaltenes concentrations and larger density of AR have strong and negative effects on the HDS, HDV, and HDAsp reactivities but no significant effect on the HDN, HDNi, and HDCCR reactivities. The B parameter obtained from electron spin resonance analysis can be a good index to predict the HDV reactivity of AR.
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U2 - 10.1021/acs.energyfuels.8b01150
DO - 10.1021/acs.energyfuels.8b01150
M3 - Article
AN - SCOPUS:85047532897
SN - 0887-0624
VL - 32
SP - 6726
EP - 6736
JO - Energy and Fuels
JF - Energy and Fuels
IS - 6
ER -