TY - JOUR
T1 - Homogeneous catalyst for in-situ hydrotreating of heavy oils
AU - Schacht-Hernández, Persi
AU - Portales-Martínez, Benjamín
AU - Laredo, Georgina C.
AU - Pérez-Romo, Patricia
AU - Domínguez-Esquivel, José M.
N1 - Publisher Copyright:
© 2019
PY - 2019/5/5
Y1 - 2019/5/5
N2 - The upgrading of the physical and chemical properties of heavy oil by hydrotreating using a liquid Ni-Mo catalyst was studied through bench-scale tests aiming at developing “inside-reservoir” technology. The liquid Ni-Mo catalyst was synthesized by a very simple method consisting in preparing and mixing solutions at room temperature under acidic conditions. Mixtures of liquid Ni-Mo catalyst and heavy oil were evaluated in a 500-mL batch reactor at 350, 390 and 400 °C for 30, 60 and 90 min. The results showed that the liquid Ni-Mo catalyst improved the crude oil properties by increasing the API gravity from 12.5 to 22 and decreasing the kinematic viscosity from 13,490 to 72 cST at 15.6 °C; the sulfur content from 5.5 to 3.1% and the nitrogen content from 750 to 392 ppm were also reduced. Furthermore, the volume of gasoline and diesel by Simulated Distillation were increased to 8 and 14 vol. %, due to the change in chemical composition. Aromatic and saturated hydrocarbon compounds increased at the expense of asphaltenes and resins.
AB - The upgrading of the physical and chemical properties of heavy oil by hydrotreating using a liquid Ni-Mo catalyst was studied through bench-scale tests aiming at developing “inside-reservoir” technology. The liquid Ni-Mo catalyst was synthesized by a very simple method consisting in preparing and mixing solutions at room temperature under acidic conditions. Mixtures of liquid Ni-Mo catalyst and heavy oil were evaluated in a 500-mL batch reactor at 350, 390 and 400 °C for 30, 60 and 90 min. The results showed that the liquid Ni-Mo catalyst improved the crude oil properties by increasing the API gravity from 12.5 to 22 and decreasing the kinematic viscosity from 13,490 to 72 cST at 15.6 °C; the sulfur content from 5.5 to 3.1% and the nitrogen content from 750 to 392 ppm were also reduced. Furthermore, the volume of gasoline and diesel by Simulated Distillation were increased to 8 and 14 vol. %, due to the change in chemical composition. Aromatic and saturated hydrocarbon compounds increased at the expense of asphaltenes and resins.
KW - Heavy oils
KW - Homogeneus
KW - Hydrotreating
KW - In situ
KW - Ni-Mo
UR - http://www.scopus.com/inward/record.url?scp=85063628269&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2019.03.020
DO - 10.1016/j.apcata.2019.03.020
M3 - Artículo
SN - 0926-860X
VL - 577
SP - 99
EP - 106
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
ER -