Dennis O'Rear

BS Che Penn State University 1972
MS ChE Stanford University 1975
PhD ChE Stanford University 1980 Advisor: Michel Boudart. Thesis title “The Preparation and Use of Platinum Powders in Adsorption and Catalysis.”

40 years in petroleum industry. Two with Mobil Research and Development 1972-1974. 38 years with Chevron Technology Company (and similar names) 1977-2015.

Various positions from Research Engineer to Senior Consultant. Focus was on heterogenous catalysis and in managing mercury throughout the petroleum value chain. Also led the deployment of Chevron’s policy on IP management throughout the corporation. Worked with SASOL Chevron Joint Venture to secure freedom to operate.

ACS American Chemical Society (retired)

ACC&CE Association of Consulting Chemists and Chemical Engineers

1. “Speciation of Mercury in Selected Areas of the Petroleum Value Chain”, Lowry, G. V. Stegemeier, J., Gai, K., Hsu-Kim, H., O’Rear, D., Hoelen, T. P. Submitted to Environ. Sci. Technol.
2. “The behavior of mercury in water, alcohols, monoethylene glycol and triethylene glycol”, Darrell Gallup; Dennis J O’Rear; Ron Radford, Fuel, Volume 196, 15 May 2017, Pages 178–184, http://dx.doi.org/10.1016/j.fuel.2017.01.100
3. “Molecular Redistribution and Molecular Averaging: Disproportionation of Paraffins via Bifunctional Catalysis,” C. Y. Chen, D. J. O’Rear, P. Leung, Topics in Catalysis, Volume 55, Issue 19 (2012), Page 1344-1361, DOI 10.1007/s11244-012-9910-3
4. “Disproportionation of Alkanes via Molecular Redistribution and Molecular Averaging”, Cong-Yan Chen and Dennis J. O’Rear, Collect. Czech. Chem. Commun. 2008, 73(8), 1105-1111
5. “Concepts for Reduction in CO2 Emissions in GTL Facilities” Dennis J. O’Rear and Fred Goede, In Fischer-Tropsch Synthesis, Catalysts and Catalysis, Studies in Surface Science and Catalysis, B.H. Davis and M. L. Occelli editors, Vol. 163. P. 401-410, Elsevier, Nov 6, 2006
6. “Concepts for Reduction in CO2 Emissions in GTL Facilities” Dennis J. O’Rear and Fred Goede, 229th ACS National Meeting, March 13-17, 2005 San Diego, CA
7. “Thermally Stable Blends of Fischer Tropsch and LCO Diesel Fuel Components”, Dennis J. O’Rear, John D. Bacha, and Andreas Tiedemann, Energy and Fuels, Vol. 18, 2004, p. 682-684.
8. “Synthesis of 2,6-Dimethylnapthalene from pentenes and toluene,” C.Y. Chen, D.S. Santilli, W.L. Schinski, D.J. O’Rear and T.V. Harris, 14th IZA meeting in South Africa, 2004
9. “Thermal Stability of Blends of Low Temperature Fischer Tropsch Paraffinic Kerosine with Conventional Jet Fuels,” Gregory Hemighaus and Dennis J. O’Rear, 8th International Conference on Stability and Handling of Liquid Fuels, Steamboat Springs, Colorado, Sept. 14-19, 2003
10. “External Surface Acidity of Modified Zeolites: ESR via Adsorption of Stable Nitroxyl Radicals and IR Spectroscopy” A.B. Ayupov, G.V. Echevsky, E.A. Paukshtis, D.J. O’Rear and C.L. Kibby, Poster 13 P-09, Proceedings of the 13th International Zeolite Conference, Montpelier, France, July 8-13, 2001
11. “Some aspects of NU-86 zeolite crystallization,” S.V. Dudarev, A.V. Toktarev, G.V. Echevsky, C.L. Kibby and D.J. O’Rear, Poster 02 P-20, Proceedings of the 13th International Zeolite Conference, Montpelier, France, July 8-13, 2001
12. “Kinetics of Dewaxing Neutral Oils over ZSM-5”, DJO’Rear and BK Lok, Ind. Eng. Chem. Res. 1991, 30, 1100-1105.
13. “The Paragon Process: A New Hydrocracking Concept”, DJO’Rear, Ind. Eng. Chem. Res. 1987, 26 2337-2344.
14. “Stoichiometry of the Titration by Dihydrogen of Oxygen Adsorbed on Platinum,” DJO’Rear, DGLöffler and MBoudart; J. Catal., 1990, 121 131-140.
15. “Catalytic Hydrogenation of Cyclohexene”; DJO’Rear, DGLöffler and MBoudart; J. Catal., 1985 94 225-229.

1. “Disproportionation of Alkanes via Molecular Redistribution and Molecular Averaging”,
Dennis O’Rear and CY Chen, Gordon Conference on Catalysis 2008
2. “Selective Hydroconversion of Normal Paraffins to Normal Paraffin-rich Lighter Products,” Dennis J. O’Rear, Tomas V. Harris, Saleh Elomari, Cong-Yan Chen, Gordon Conference on Catalysis 2006
3. “Disproportionation of Alkanes via Molecular Redistribution and Molecular Averaging,” C.Y. Chen and D.J. O’Rear, Presentation to the University of Witwatersrand, April 19, 2006.
4. “Disproportionation of Alkanes via Molecular Redistribution and Molecular Averaging,” C.Y. Chen and D.J. O’Rear, 13th International Congress on Catalysis, Paris, July 2004.
5. “Advances in Laboratory Procedures to Evaluate and Develop Hydroprocessing Catalysts”, 1997 ARAMCO Technology Exchange Meeting, May 1997 Dhahran Saudi Arabia
6. “Zeolite Research at Chevron”, 1995 ARAMCO Technology Exchange Meeting, May 1995 Dhahran Saudi Arabia. Also presented at the September 1997 ACS meeting in Las Vegas. Video of presentation: https://m.youtube.com/watch?feature=share&v=X1lI7JSTPVc
7. “Impact of Reformulated Gasoline on Refining Catalysis”, 47th Industrial Affiliates Symposium, Stanford University, May 28-30, 1991.
8. “The Paragon Process: A New Hydrocracking Concept”, ACS Denver Meeting, April 5-10, 1987; AIChE Annual Meeting, March 29, 1987, Houston; Nippon-Ketjen Technical Seminar, May 1990, Tokyo.
9. “The Kinetics of Neutral Oil Dewaxing Over ZSM-5”, ACS Session on Chemistry of Lubricants and Lubrication, Boston, April 22, 1990; 6th Refinery Technology Meeting, Calcutta India, September 1991.
10. “Differences in Hydrogenation Behavior between Shale Oil and Coal Liquids”, Gordon Research Conference, Fuel Science, July 12-16, 1982.
11. “Refining of Syncrudes from the H-Coal Liquefaction Process,” API, New York, May 11-13, 1982.
12. “Refining of Synthetic Crudes,” Stanford Colloquium, September 8, 1980.
13. “Refining of Coal Derived Syncrudes For BTX,” ACS National Meeting, Las Vegas, August 1980.
14. “Catalytic Upgrading Of H-Coal Syncrudes,” ACS National Meeting, Houston, March 23-28, 1980.
15. “The Preparation of Clean Platinum Powders”, AIChE Meeting, Anaheim, July 1978.