Aquathermolysis of heavy crude oil with ferric oleate catalyst

Oil-soluble catalysts could be of special significance for reducing the viscosity of heavy crude oil, because of their good dispersion in crude oil and high catalytic efficiency toward aquathermolysis. Ferric oleate was synthesized and applied as catalyst in the aquathermolysis reaction of Shengli h...

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Bibliographic Details
Published in:Petroleum science 2018-08, Vol.15 (3), p.613-624
Main Authors: Li, Yun-Rui, Li, Qiu-Ye, Wang, Xiao-Dong, Yu, Lai-Gui, Yang, Jian-Jun
Format: Article
Language:English
Subjects:
Analytical methods
Aquathermolysis
Catalysis
Catalyst
Catalysts
Chemical synthesis
Components
Crude oil
Earth and Environmental Science
Earth Sciences
Economics and Management
Energy Policy
Ferric nitrate
Ferric oleate
Fourier transforms
Heavy oil
Heavy petroleum
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Infrared analysis
Mineral Resources
NMR
Nuclear magnetic resonance
Oleic acid
Original Paper
Spectrometry
Viscosity
Viscosity reduction
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Summary:Oil-soluble catalysts could be of special significance for reducing the viscosity of heavy crude oil, because of their good dispersion in crude oil and high catalytic efficiency toward aquathermolysis. Ferric oleate was synthesized and applied as catalyst in the aquathermolysis reaction of Shengli heavy oil. It was found that ferric oleate was more efficient for heavy oil cracking than Co and Ni oleates. Besides, it was superior to oleic acid and inorganic ferric nitrate and achieved the highest viscosity reduction rate of up to 86.1%. In addition, the changes in the components of Shengli heavy oil before and after aquathermolysis were investigated by elemental analysis, Fourier transform infrared spectrometry, and 1 H nuclear magnetic resonance spectroscopy. Results indicated that ferric oleate contributed to a significant increase in the content of light components and decrease in the content of resin, N and S. The as-prepared ferric oleate showed good activity for reducing the viscosity and improving the quality of the heavy crude oil, showing promising application potential in aquathermolysis of heavy crude oil.
ISSN:1672-5107
1995-8226
DOI:10.1007/s12182-018-0246-x