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Chemical & Biological Processing

Michel Gray

Michel Gray

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352


Michel Gray has over 13 years’ research experience at PNNL. He has been involved in Biofuels conversion research, International Research Collaboration, and Radiation Portal Monitoring projects in which he has assisted with management, planning, and execution of said project areas. He currently is co-inventor on 11 patents ranging in areas from Synthesis Gas Conversion to Upgrading of Biomass Derived Products to Fuels and Chemicals. His strengths are in operations management, project/task management, reactor design and construction, reactor management, and analytical with respect to the research focused areas and site management, planning, and design with respect to construction related projects.

PNNL Patents

Research Interests

  • Reactor Construction for Thermochemical Processes
  • International Collaboration
  • Catalyst Development and Screening
  • Deterrence of Radioactive Materials

Education and Credentials

  • B.S., Chemistry , Washington State University
  • A.A.S., Columbia Basin College

PNNL Publications


  • Murugesan V., M.J. Gray, M.F. Guo, H.M. Job, A. Devaraj, C.J. Szymanski, and S. Thevuthasan, et al. 2017. "Thermal Evaluation of Metal Oxides on Silica Supports." In North American Catalysis Society Meeting, June 4-9, 2017, Denver, CO, Paper No. P-T-BRM-44. PNNL-SA-122369.


  • Devaraj A., V. Murugesan, J. Bao, M.F. Guo, M.A. Derewinski, Z. Xu, and M.J. Gray, et al. 2016. "Discerning the Location and Nature of Coke Deposition from Surface to Bulk of Spent Zeolite Catalysts." Scientific Reports 6. PNNL-SA-113562. doi:10.1038/srep37586
  • Lebarbier V.M., C.D. Smith, M.D. Flake, K.O. Albrecht, M.J. Gray, K.K. Ramasamy, and R.A. Dagle. 2016. "Integrated Process for the Catalytic Conversion of Biomass-Derived Syngas into Transportation Fuels." Green Chemistry 18, no. 7:1880-1891. PNNL-SA-113248. doi:10.1039/c5gc02298c
  • Ramasamy K.K., M.J. Gray, H.M. Job, C.D. Smith, and Y. Wang. 2016. "Tunable catalytic properties of bi-functional mixed oxides in ethanol conversion to high value compounds." Catalysis Today 269. PNNL-SA-115950. doi:10.1016/j.cattod.2015.11.045
  • Ramasamy K.K., M.J. Gray, H.M. Job, D.M. Santosa, X.S. Li, A. Devaraj, and A.J. Karkamkar, et al. 2016. "Role of Calcination Temperature on the Hydrotalcite Derived MgO-Al2O3 in Converting Ethanol to Butanol." Topics in Catalysis 59, no. 1:46-54. PNNL-SA-110874. doi:10.1007/s11244-015-0504-8
  • Tan E., L.J. Snowden-Swan, M. Talmadge, A. Dutta, S.B. Jones, K. Kallupalayam Ramasamy, and M.J. Gray, et al. 2016. "Comparative Techno-economic Analysis and Process Design for Indirect Liquefaction Pathways to Distillate-range Fuels via Biomass-derived Oxygenated Intermediates Upgrading." Biofuels, Bioproducts & Biorefining 11, no. 1:41-66. PNNL-SA-120207. doi:10.1002/bbb.1710


  • Howe D.T., D.J. Taasevigen, M.A. Gerber, M.J. Gray, C.A. Fernandez, L. Saraf, and M. Garcia-Perez, et al. 2015. "Bed Agglomeration During the Steam Gasification of a High Lignin Corn Stover Simultaneous Saccharification and Fermentation (SSF) Digester Residue." Energy and Fuels 29, no. 12:8035-8046. PNNL-SA-112332. doi:10.1021/acs.energyfuels.5b01808
  • Ramasamy K.K., M.J. Gray, H.M. Job, and Y. Wang. 2015. "Direct Syngas Hydrogenation over a Co-Ni Bimetallic Catalyst: Process Parameter Optimization." Chemical Engineering Science 135. PNNL-SA-107517. doi:10.1016/j.ces.2015.03.064


  • Dagle R.A., J.A. Lizarazo Adarme, V.M. Lebarbier, M.J. Gray, J.F. White, D.L. King, and D.R. Palo. 2014. "Syngas Conversion to Gasoline-Range Hydrocarbons over Pd/ZnO/Al2O3 and ZSM-5 Composite Catalyst System." Fuel Processing Technology 123. PNNL-SA-86935. doi:10.1016/j.fuproc.2014.01.041



  • Gerber M.A., M.J. Gray, K.O. Albrecht, and B.L. Thompson. 2012. Optimization of Rhodium-Based Catalysts for Mixed Alcohol Synthesis - 2012 Progress Report. PNNL-22659. Richland, WA: Pacific Northwest National Laboratory. Optimization of Rhodium-Based Catalysts for Mixed Alcohol Synthesis - 2012 Progress Report
  • Glezakou V.A., J.E. Jaffe, R.J. Rousseau, D. Mei, S.M. Kathmann, K.O. Albrecht, and M.J. Gray, et al. 2012. "The Role of Ir in Ternary Rh-Based Catalysts for Syngas Conversion to C2+ Oxygenates." Topics in Catalysis 55, no. 7-10:595-600. PNNL-SA-85103. doi:10.1007/s11244-012-9836-9




  • Holladay J.E., J.B. Binder, M.J. Gray, J.F. White, and Z.C. Zhang. 2009. "Reactions of Lignin Model Compounds in Ionic Liquids." Biomass & Bioenergy 33, no. 9:1122-1130. PNNL-SA-57524. doi:



Chemical & Biological Processing

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