Visbreaking of heavy petroleum oil catalyzed by SO42-/ZrO2 solid super-acid doped with Ni2+ or Sn2+ |
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Authors: | Ping Jing Qingbiao Li Mei Han Daohua Sun Lishan Jia and Weiping Fang |
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Affiliation: | (1) Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Key Lab for Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, China;(2) Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China |
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Abstract: | SO42−/ZrO2 solid super-acid catalysts (SZ) doped with Ni2+ or Sn2+ (Ni2+/SZ, Sn2+/SZ) were prepared for catalytic visbreaking of heavy petroleum oil from Shengli oil field. The visbreaking reactions were
carried out at 240°C and 3–4 MPa for 24 h using a heavy petroleum oil to catalyst mass ratio of 100 : 0.05. The effect of
water content on viscosity of heavy petroleum oil was also investigated. Both catalysts can promote thermolysis of heavy petroleum
oil and the viscosity was reduced from 0.319 Pa·s to 0.135 Pa·s for Ni2+/SZ and 0.163 Pa·s for (Sn2+/SZ) with visbreaking rates of 57.7% and 48.9%, respectively. After visbreaking, the saturated hydrocarbon content increased
while aromatics, resin, asphaltene, sulfur and nitrogen content decreased. The presence of water was disadvantageous to visbreaking
of heavy petroleum oil.
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Translated from Petrochemical Technology, 2007, 36(3): 237–241 译自: 石油化工] |
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Keywords: | heavy petroleum oil visbreaking nickel tin solid super-acid catalysis |
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