Using hydrogen donor with oil-soluble catalysts for upgrading heavy oil

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• 作者：Fajun Zhao (1)
  Yongjian Liu (1)
  Zhiguo Fu (2)
  Xin Zhao (2)
  
  1. Key Laboratory of Oil Recovery Enhance of Ministry of Education ; Northeast Petroleum University ; Daqing ; 163318 ; Heilongjiang ; China
  2. Research Institute of Exploration and Development ; PetroChina Daqing Oilfield Company ; Daqing ; 163712 ; Heilongjiang ; China
  
• 刊名：Russian Journal of Applied Chemistry
• 出版年：2014
• 出版时间：October 2014
• 年：2014
• 卷：87
• 期：10
• 页码：1498-1506
• 全文大小：255 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Chemistry
  Industrial Chemistry and Chemical Engineering
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3296

文摘

With self-made oil-soluble organic cobalt salt as catalyst and formamide as hydrogen donor, we studied the aquathermolysis reaction of heavy oil through simulating the condition of thermal recovery of oil reservoir with autoclave. In the paper, we explored the effect of the hydrogen donor added into catalytic aquathermolysis reaction on the viscosity of heavy oil, group composition and component contents. Moreover, FTIR spectrum was employed to analyze the structural change of heavy oil after hydrogen donor catalytic aquathermolysis. The obtained data are validated that when the mass fraction of added hydrogen donor was increased, the viscosity reduction rate and the contents of saturated hydrocarbons and aromatic hydrocarbons were increased and the contents of resin and asphalt were decreased. Under the synergic action of catalysts and hydrogen donor, the content of carbon in heavy oil was decreased and the content of hydrogen was increased. Thus, the ratio of H/C rose and the content of sulfur was reduced. Analysis result of infrared spectrum validated that hydrogen donor catalytic aquathermolysis underwent decarboxylation and that the number of aromatic rings was reduced.