Upgrading of Heavy Crude Oil with W-Zr Catalyst
- 1 Instituto Mexicano del Petróleo, México, D.F., México
- 2 Instituto Mexicano del Petróleo, México, D.F., México
- 3 Universidad Autónoma Metropolitana, División de Ciencias Básicas e Ingeniería, México, D.F., México
- 4 Instituto Mexicano del Petróleo, México, D.F., México
Abstract
The main problem of new crude oil reserves is the incipient increase of heavy crude oils in the American continent, i.e . USA, Mexico, Canada and Venezuela. These types of crude oils require several treatments before refining. One of these treatments can be hydrocracking. In this petroleum refining process, it is possible to modify the heavy crude oils to light crude oils. In this paper, we try to use hydrocracking to improve the quality of raw heavy crude oil, through some chemical transformations C-H binding rupture using a catalyst containing active metals such as tungsten and zirconium (W-Zr). After the crude oil was hydrocracked in presence of this novel bimetallic catalyst, the hydrocracked products showed lower content of asphaltenes, resins, sulfur and nitrogen. Also positive changes in the viscosity of crude oil measured as a decreasing of this value were observed. The American Petroleum Institute (API) gravity was significantly increased 6 units. Consequently, all these changes confirmed that the upgrading of the heavy crude oil was successful.
- Kjarstad, J. and Johnsson, F. (2009) Resources and Future Supply of Oil. Energy Policy, 37, 441-464.
- Laherrere, J. (2003) Forecast of Oil and Gas Supply to 2050. PETROTECH 2003, New Delhi.
- Isaacs, E. (2006) Book Canadian Oil Sands: Development and Future Outlook. Managing Director, Alberta Energy Research Institute, Canada’s National Energy Board, Calgary. http://www.asponews.org,http://www.energiekrise.de
- Fumoto, E. Tago, T., Tsuji, T. and Takao, M. (2004) Recovery of Useful Hydrocarbons from Petroleum Residual Oil by Catalytic Cracking with Steam over Zirconia-Supporting Iron Oxide Catalyst. Energy Fuels, 18, 1770-1774.
- Brian, C., Gordon, J. and Graves, W. (2007) Heavy Oil, Extra-Heavy Oil and Bitumen Unconventional Oil. National Petroleum Council Heavy Oil Subgroup of the Technology Task Group of the NPC Committee on Global Oil and Gas. http://www.npc.org/Study_Topic_Papers/22-TTG-Heavy-Oil.pdf
- Greene, D.L., Hopson, L. and Li, J. (2006) Have We Run out of Oil Yet? Oil Peaking Analysis from an Optimist’s Perspective. Energy Policy, 34, 515-531.
- Soderbergh, B., Robelius, F. and Aleklett, K. (2007) A Crash Programme Scenario for the Canadian Oil Sands Industry. Energy Policy, 35, 1931-1947.
- Mitsunori, S., Yoshlml, S. and Chlrato, T. (1986) Effect of Catalyst Pore Structure on Hydrotreating of Heavy Oil. Industrial & Engineering Chemistry Fundamentals, 25, 330-337.
- Nor, A.L., Nilofar, A., Mohd, A.R. and Ali, A.B (2008) Investigation of Nanoscale Tungsten (VI) Oxide as a Catalyst for the Ozonolysis of Oleic Acid. European Journal of Inorganic Chemistry, 24, 463-467.
- Díaz-Garcia, L., Cortez, M.T., et al. (2006) Influence of Alumina Crystal Size on the Hydrotreating Activity of Supported NiMo Catalysts Using Real Feedstock. Petroleum Science and Technology, 24, 485-506.
- Supothina, S., Seeharaj, P., Yoriya, S. and Sriyudthsak, M. (2007) Synthesis of Tungsten Oxide Nanoparticles by Acid Precipitation Method. Ceramics International, 33, 931-936. http://dx.doi.org/10.1016/j.ceramint.2006.02.007
- Benitez, V.M., Yori, J.C., Grau, J.M., Pieck, C.L. and Vera, C.R. (2006) Hydroisomerization and Cracking of n-Octane and n-Hexadecane over Zirconia Catalysts. Energy & Fuels, 20, 422-426. http://dx.doi.org/10.1021/ef050092j
- Bianchini, C., Jiménez, M.V., Meli, A., Moneti, S., Patinec, V. and Vizza, F. (1997) Mimicking the HDS Activity of Promoted Tungsten Catalysts. A Homogeneous Modeling Study Using a Two-Component Tungsten/Rhodium System. Organometallics, 16, 5696-5705. http://dx.doi.org/10.1021/om970711e