Catalytic Influences of Dispersed copper Complex ion on Aquathermolysis of Heavy Crude Oil

Authors

  • Usman, M. Usmanu Danfodiyo University, Sokoto
  • Galadima, A. Federal University Gusau
  • Faruq, U.Z. Usmanu Danfodiyo University, Sokoto
  • Jibril, B.Y. Ahmadu Bello University, Zaria

Keywords:

Aquathermolysis catalyst, SARA, heavy crude oil, viscosity, sulphur reduction

Abstract

Copper based catalyst Cu2+ was synthesized and characterised by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR). Various concentrations of this catalyst was used to catalyse aquathermolysis of medium heavy crude oil (API gravity = 29.40o) at temperature of 200oC for three hours (3h). The oil sample(s) were characterised before and after aquathermolysis reaction using FT-IR. SARA analysis was carried out using column chromatography and the sulphur content, kinematic viscosity, density and API gravity were also determined. The original viscosity of the fresh crude oil was 9.8799 m2/s, after the reaction without catalyst; the viscosity was reduced to 8.8125 m2/s (10.80% reduction). When Cu2+ was used at optimum concentration, it was further reduced to 7.7339 m2/s (21.61% reduction).  The catalyst reduced the sulphur content by 4.37% and it was reduced by 2.77% when no catalyst was used. Also, API gravity was increased by 1.02% without catalyst while it was reduced by 2.72% when the catalyst was used. The results indicate that the percentage by weight of asphaltenes and resins were reduced due to cleavage on carbon to heteroatom bonds while that of aromatics and saturates were increased. The compared results with previous researches strongly confirmed that this catalyst possessed good catalytic activity owing to its strong viscosity reduction properties.

Author Biographies

Usman, M., Usmanu Danfodiyo University, Sokoto

Usmanu Danfodiyo University,Sokoto, Nigeria.

Galadima, A., Federal University Gusau

Center of NanoTechnology, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabi.

Federal University, Gusau, Nigeria.

Faruq, U.Z., Usmanu Danfodiyo University, Sokoto

Usmanu Danfodiyo University,Sokoto, Nigeria.

Jibril, B.Y., Ahmadu Bello University, Zaria

Ahmadu Bello University, Zaria, Nigeria

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Published

2016-03-30

How to Cite

Usman, M., Galadima, A., Faruq, U.Z., & Jibril, B.Y. (2016). Catalytic Influences of Dispersed copper Complex ion on Aquathermolysis of Heavy Crude Oil. International Journal of Science for Global Sustainability, 2(1), 10. Retrieved from https://fugus-ijsgs.com.ng/index.php/ijsgs/article/view/266

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