Geoffrey L. Price

Geoffrey Price

The Wayne Banes Rumley Endowed Chair in Chemical EngineeringProfessorChairmanKeplinger Hall U301

Dr. Price's research interests are primarily in zeolites and zeolite catalysis. Chemical and petrochemical operations utilizing zeolites are vast, and emerging interests in refining biofuels find potential in zeolite catalysis. Over the past few years, significant progress has been made in Dr. Price's labs in several areas including solid-state ion-exchange of zeolites and alkylamine probes of zeolitic cations. One particular application has been in gallium zeolites which are useful for light paraffin aromatization. Dr. Price and his co-workers were the first to identify and describe an important solid-state ion-exchange process which takes place between gallium and zeolitic protons for this class of materials. Since the catalytic activity is driven by a bifunctional gallium/proton mechanism, the important catalytic properties are highly dependent upon the extent to which protons are eliminated from the zeolite by this ion-exchange process. Alkylamine probes have proven to be an effective technique for exploring the gallium/proton content of the zeolite host, and the method has been extended to copper-containing materials which have tremendous potential for several new NOx control strategies. We have developed a solid-state ion-exchange method for copper loading which allows higher levels of loading than previous reports which primarily rely upon aqueous ion-exchange. We have also identified some potentially valuable hydrocarbon conversion processes which occur on the copper-zeolite catalysts.

Education and Degrees Earned

  • Ph.D., Chemical Engineering, Rice University, 1979
  • B.S., Chemical Engineering, Lamar University, 1975

Areas of Research Focus

  • Zeolites
  • Heterogeneous Catalysis
  • Biofuels

Previous Teaching Experience

  • Previously taught 21 years in the Chemical Engineering Department at Louisiana State University where he is still Professor Emeritus

Professional Affiliations

  • Fellow of the American Institute of Chemical Engineers
  • American Chemical Society

Courses Taught at TU

  • Chemical Engineering Lab I (CHE 4003)
  • Chemical Engineering Lab II (CHE 4013)
  • Chemical Reactor Design (CHE 4063)
  • Heat Transfer (ES 3073)
  • Industrial Catalysis (CHE 4133)
  • Thermodynamics (ES 3053)

Awards & Recognition

  • Named Fellow of the American Institute of Chemical Engineers in 2006
  • Named Robert Hughes Harvey Endowed Professor at LSU in 1998


  • E. Iglesia, J. Baumgartner, G.L. Price, K.D. Rose, and J.L. Robbins, "Alkane Rearrangement Pathways on Tellurium-Based Catalysts", Journal of Catalysis, 125, 95-111 (1990).

  • V. Kanazirev, G.L. Price, and K. Dooley, "Change in the Decomposition Mode of 1-Propanamine due to the Presence of Cations in MFI Zeolite", Catalysis Letters, 24, 227-233 (1994).

  • K.M. Dooley, T. F. Guidry, and G.L. Price, "Control of Intrazeolitic Gallium Cation Content and It's Effects on C2 Dehydrogenation in Ga-MFI Catalysts", Journal of Catalysis 157, 66-75 (1995).

  • V. Kanazirev, G.L. Price and K.M. Dooley, "Enhancement in Propane Aromatization with Ga2O3/HZSM-5 Catalysts", Journal of the Chemical Society, Chemical Communications, 9, 712-713 (1990).

  • G.L. Price and V. Kanazirev, "Ga2O3/HZSM-5 Propane Aromatization Catalysts: Formation of Active Centers via Solid State Reaction", Journal of Catalysis, 126, 267-278 (1990).

  • G.L. Price, V. Kanazirev, and K.M. Dooley, "Gallium-Containing Zeolite Catalysts", US# 5,149,679 (1992).

  • K.M. Dooley and G.L. Price, eds., “Gallium-loaded Zeolites and Related Systems”, Catalysis Today 31. (1996).

  • E. Iglesia, J. Baumgartner and G.L. Price, "Kinetic Coupling and Hydrogen Surface Fugacities in Heterogeneous Catalysis. I. Alkane Reactions on Te/NaX, H-ZSM5, and Ga/H-ZSM5", Journal of Catalysis, 134, 549-571 (1992)

  • A. Subbiah, B.K. Cho, R.J. Blint, A. Gujar, G.L. Price, and J.E. Yie, “NOx Reduction over Metal-Ion Exchanged Novel Zeolite under Lean Conditions: Activity and Hydrothermal Stability”, Applied Catalysis B: Environmental 42, 155-178 (2002).

  • G.L. Price, V. Kanazirev, K.M. Dooley, and V.I. Hart, “On the Mechanism of Propane Dehydrocyclization over Cation-Containing, Proton-Poor MFI Zeolite”, Journal of Catalysis, 173, 17-27 (1998).