Photo of Kristiina Iisa

Kristiina Iisa

Researcher IV-Chemical Engineering

Orcid ID

Research Interests

Thermochemical biorefineries

Catalytic fast pyrolysis for the production of transportation fuels

Upgrading of pyrolysis oils

Biomass gasification

Areas of Expertise

Pyrolysis and gasification

Chemical reaction engineering

Heterogeneous catalysis

Gas-solid reactions


Ph.D., Chemical Engineering, Åbo Akademi University, Finland

M.Sc., Chemical Engineering, Helsinki University of Technology, Finland

Professional Experience

Senior Engineer, NREL (2008–present)

Principal Research Engineer, Georgia Institute of Technology (2005–2008)

Research Associate, Chalmers University of Technology (2001–2004)

Associate Professor, Institute of Paper Science and Technology (2000–2001)

Assistant Professor, Institute of Paper Science and Technology (1997–2000)

Assistant Professor, Oregon State University (1993–1996)

Faculty Research Assistant, Oregon State University (1992–1993)

Research Assistant, Åbo Akademi University, Finland (1987–1992)

Research & Development Engineer, Valmet, Finland (1983–1987)

Featured Work

In Situ and Ex Situ Catalytic Pyrolysis of Pine in a Bench-Scale Fluidized Bed Reactor System, Energy & Fuels (2016)

Catalytic Pyrolysis of Pine over HZSM-5 with Different Binders, Topics in Catalysis (2016)

Hydrotreating the Organic Fraction of Biomass Pyrolysis Oil to a Refinery Intermediate, Energy & Fuels (2015)

Pyrolysis of Woody Residue Feedstocks: Upgrading of Bio-Oils from Mountain-Pine-Beetle-Killed Trees and Hog Fuel, Energy & Fuels (2014)

Effect of Temperature, Pressure, and Residence Time on Pyrolysis of Pine in an Entrained Flow ReactorEnergy & Fuels (2014)

Real-Time Monitoring of the Deactivation of HZSM-5 during Upgrading of Pine Pyrolysis VaporsGreen Chemistry (2014)

Hydrocarbon Liquid Production from Biomass via Hot-Vapor-Filtered Fast Pyrolysis and Catalytic Hydroprocessing of the Bio-OilEnergy & Fuels (2014)

Evaluate Impact of Catalyst Type on Oil Yield and Hydrogen Consumption from Mild HydrotreatingEnergy & Fuels (2014)

High-Speed Imaging of Biomass Particles Heated with a LaserJournal of Analytical and Applied Pyrolysis (2013)

Chemical Characterization and Water Content Determination of Bio-Oils Obtained from Various Biomass Species Using 31P NMR SpectroscopyBiofuels (2012)

Analysis of Oxygenated Compounds in Hydrotreated Biomass Fast Pyrolysis Oil Distillate Fractions, Energy & Fuels (2011)