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Dr. Ali Lohi

Ali Lohi
PhD, PEng
416-979-5000 ext. 557028

Areas of Academic Interest

Simulation / modeling and optimization of chemical processes

Modeling of fluid flow and rheological behavior of fluid-particles systems

Membrane fouling remediation – food and wastewater applications

Waste utilization and low level energy management

Bioenergy, oil and gas production (midstream and downstream)


Year University Degree
1988 University of Waterloo
1974 University of Waterloo
1970 Sharif University of Technology

Selected Courses

Course Code Course Title
CE8210 Process & Engineering Optimization
CHE 473 Sustainable Energy Technology
CHE 44A/B Plant Design


Every day, when Ali Lohi makes the commute from Waterloo to Toronto, North American car culture is on evident display. Lohi passes hundreds if not thousands of single-occupancy vehicles, each one striking a chord with his ecological consciousness. “It’s a lifestyle problem and a mindset that we have here,” he says. “But we can fix it. Even if it takes generations.”

A pillar of Ryerson’s engineering program, Lohi helped shape the school’s undergraduate, master's, and PhD programs while simultaneously holding an adjunct appointment at another university. At Ryerson, Lohi teaches his students strategies for maintaining society’s current living standards while decreasing energy consumption. He practises what he preaches. In his own research, Lohi converts agricultural waste—corn cobs and sweetgrass—into cost-efficient bio oil and synthesis gas (syngas), and finally into butanol.

Lohi believes that a greener future needs engineers and scientists from all different disciplines to work together. “It’s up to everybody to make the world a better place,” he says. “I’m just doing my part.”

Ali Lohi

"Being a young university, Ryerson can show its societal progress, because it’s changing at the same rate."


  • Kazemzadeh A., Ein-Mozaffari F., Lohi A., Pakzad L., 2017, “Intensification of Mixing of Shear-Thinning Fluids Possessing Yield Stress with the Coaxial Mixers Composed of Two Different Central Impellers and an Anchor”, Chemical Engineering and Processing: Process Intensification 111, 101-114.
  • Alchikh-Sulaiman B., Ein-Mozaffari F., Lohi A., 2015, “Evaluation of Poly-Disperse Solid Particles Mixing in a Slant Cone Mixer Using Discrete Element Method”, Chemical Engineering Research and Design, 96, 196-213.
  • Liu H., Elkamel A., Lohi A., Biglari M., 2014, “Effect of Char Combustion Product Distribution Coefficient on the CFD Modeling of Biomass Gasification in a Circulating Fluidized Bed”, Industrial & Engineering Chemistry Research, 53, no. 13, 5554-5563.
  • Abdelrasoul A., Doan H., Lohi A., 2013, “Impact of Operating Conditions on Fouling Probability and Cake Height in Ultrafiltration of Latex Solution,” Journal of Membrane and Separation Technology, 2, no. 2, 134-147.
  • USA Provisional Patent - “Water Purification Device”, Abdelrasoul/Doan/Lohi, US#62415694, 2016.