Petroleum Science >2016,??Issue 3:??463-475 DOI: https://doi.org/10.1007/s12182-016-0103-8
Catalytic aquathermolysis of Shengli heavy crude oilwith an amphiphilic cobalt catalyst Open?Access
文章信息
作者：Yan-Bin Cao,Long-Li Zhang and Dao-Hong Xia
作者单位：
1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, Shandong, China 2 Research Institute of Petroleum Engineering and Technology, Shengli Oilfield Company, Sinopec, Dongying 257000, Shandong, China;1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, Shandong, China;1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, Shandong, China
投稿时间：2015-12-15
引用方式：Cao, YB., Zhang, LL. & Xia, DH. Pet. Sci. (2016) 13: 463. https://doi.org/10.1007/s12182-016-0103-8
文章摘要
An interfacially active cobalt complex, cobalt
dodecylbenzenesulfonate, was synthesized. Elemental
analysis, atomic absorption spectroscopy, Fourier transform
infrared spectroscopy (FT-IR), thermogravimetric analysis,
and surface/interfacial tension determination were performed
to investigate the properties of the catalyst. Results
showed that the synthesized catalyst showed active interfacial
behavior, decreasing the surface tension and interfacial
tension between heavy oil and liquid phase to below 30
and 1.5 mN/m, respectively. The catalyst was not thermally
degraded at a temperature of 400 C, indicating its high
thermal stability. Catalytic performance of the catalyst was
evaluated by carrying out aquathermolysis. The viscosity
determination showed that the viscosity of the heavy oil
decreased by 38 %. The average molecular weight, group
compositions, and average molecular structure of various
samples were analyzed using elemental analysis, FT-IR,
electrospray ionization Fourier transform ion cyclotron
resonance (ESI FT-ICR MS), and 1H nuclear magnetic
resonance. Results indicated that the catalyst could attack
the sulfur- and O2-type heteroatomic compounds in
asphaltene and resin, especially the compounds with aromatic
structure, leading to a decrease in the molecular
weight and then the reduction in the viscosity of heavy oil.
Therefore, the synthesized catalyst might find an application
in catalytic aquathermolysis of heavy oil, especially for the
high-aromaticity heavy oil with high oxygen content.
dodecylbenzenesulfonate, was synthesized. Elemental
analysis, atomic absorption spectroscopy, Fourier transform
infrared spectroscopy (FT-IR), thermogravimetric analysis,
and surface/interfacial tension determination were performed
to investigate the properties of the catalyst. Results
showed that the synthesized catalyst showed active interfacial
behavior, decreasing the surface tension and interfacial
tension between heavy oil and liquid phase to below 30
and 1.5 mN/m, respectively. The catalyst was not thermally
degraded at a temperature of 400 C, indicating its high
thermal stability. Catalytic performance of the catalyst was
evaluated by carrying out aquathermolysis. The viscosity
determination showed that the viscosity of the heavy oil
decreased by 38 %. The average molecular weight, group
compositions, and average molecular structure of various
samples were analyzed using elemental analysis, FT-IR,
electrospray ionization Fourier transform ion cyclotron
resonance (ESI FT-ICR MS), and 1H nuclear magnetic
resonance. Results indicated that the catalyst could attack
the sulfur- and O2-type heteroatomic compounds in
asphaltene and resin, especially the compounds with aromatic
structure, leading to a decrease in the molecular
weight and then the reduction in the viscosity of heavy oil.
Therefore, the synthesized catalyst might find an application
in catalytic aquathermolysis of heavy oil, especially for the
high-aromaticity heavy oil with high oxygen content.
关键词
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Interfacially active CoDBS Catalyticaquathermolysis Oxygen-contained groups Heavy oil