Pjontek, Dominic - University of Western Ontario - Department of Chemical and Biochemical Engineering

个人简介

My research activities are primarily carried out at the Institute for Chemicals and Fuels from Alternative Resources (ICFAR), a facility which specializes on the production of fuels and chemicals from alternative resources, heavy oil upgrading, and sustainable technologies. My immediate research goal is to combine my expertise in hydroprocessing fluid dynamics (e.g., scaling methodologies, high pressure experiments, particle agglomeration, etc.) with the extensive knowledge of the current ICFAR researchers on the topics of thermal cracking via fluid coking technologies as well as bio-oil production and valorization. Research Topics: Bitumen and bio-oil upgrading Gas-liquid-solid fluidized beds (ebullated beds, slurry bubble columns) Resid/heavy oil hydroprocessing Particle agglomeration phenomena Reactor fouling Multiphase reactor engineering Awards and Distinctions NSERC Postgraduate Scholarship for Doctoral Studies University of Ottawa Excellence Scholarship for Graduate Studies Wilfrid Brisson Excellence Memorial Scholarship for Graduate Studies NSERC Canada Graduate Scholarship for Master’s Studies NSERC Undergraduate Student Research Award Wilfrid Brisson Undergraduate Memorial Scholarship McLimont Scholarship

研究领域

Particle agglomeration in a slurry bubble column due to interparticle liquid bridging Bio-oil hydrodeoxygenation using an externally agitated reactor Micro reactor study and optimization for pyrolysis with vapour condensation Experimental investigation of inverse liquid-solid circulating fluidized bed hydrodynamics Bogging and heat transfer in a mechanically fluidized reactor

近期论文

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S MacIntyre, A Hammad, Dominic Pjontek (in press). Particle agglomeration studies in a slurry bubble column due to liquid bridging: Effects of particle size and sparger design. Chemical Engineering Science. doi: 10.1016/j.ces.2017.02.021 V Parisien, D Pjontek, CA McKnight, J Wiens, A Macchi (in press). Impact of catalyst density distribution on the fluid dynamics of an ebullated bed operating at high gas holdup conditions. Chemical Engineering Science. doi: 10.1016/j.ces.2017.02.003 V Parisien, A Farrell, D Pjontek, CA McKnight, J Wiens, A Macchi (2016). Bubble swarm characteristics in a bubble column under high gas holdup conditions. Chem. Eng. Sci., 157, 88-98. doi:10.1016/j.ces.2016.04.051 D Pjontek, CA Mcknight, J Wiens, A Macchi (2015). Ebullated bed fluid dynamics relevant to industrial hydroprocessing. Chem. Eng. Sci. 126, 730–744. doi:10.1016/j.ces.2015.01.002 D Pjontek, V Parisien, C Farrell, CA McKnight, J Wiens, A Macchi (2014). Particle agglomeration in gas-liquid-solid fluidized beds with a dispersed immiscible liquid: Study on particle size, shape and material. Powder Technol. 266, 45–60. doi:10.1016/j.powtec.2014.06.002 D Pjontek, V Parisien, A Macchi (2014). Bubble characteristics measured using a monofibre optical probe in a bubble column and freeboard region under high gas holdup conditions. Chem. Eng. Sci. 111, 153–169. doi:10.1016/j.ces.2014.02.024 D Pjontek, A Macchi, (2014). Hydrodynamic comparison of spherical and cylindrical particles in a gas–liquid–solid fluidized bed at elevated pressure and high gas holdup conditions. Powder Technol. 253, 657–676. doi:10.1016/j.powtec.2013.12.030 D Pjontek, J Landry, CA McKnight, LP Hackman, A Macchi, (2011). Effect of a dispersed immiscible liquid phase on the hydrodynamics of a bubble column and ebullated bed. Chem. Eng. Sci. 66, 2224–2231. doi:10.1016/j.ces.2011.02.040 S MacIntyre, M Atkinson, D Pjontek (2016). Agglomeration studies in a slurry bubble column: Effects of immiscible liquid loading and viscosity. Canadian Chemical Engineering Conference, Vancouver, Canada. Oral presentation. D Kankariya, S Tacchino, D Pjontek, F Berruti, C Briens (2016). Development of a mobile 100 kg/h plant for pyrolysis using a mechanically fluidized reactor. 5th international congress on green process engineering (GPE 2016), Mont Tremblant, Canada. Poster. G Chegini, C Briens, D Pjontek (2016). Effect of heating rate on digestate pyrolysis for biochar production using the Jiggle Bed Reactor. Advanced Biofuels Symposium, Vancouver, Canada. V. Parisien, A. Farrell, D. Pjontek, A. Macchi (2015). Comparison of monofibre optical probe and dynamic gas disengagement techniques for local and global bubble characteristics in a bubble column at high gas holdups conditions. 12th International Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering (GLS 12), New York, United States. Oral presentation. D. Pjontek, C. McKnight, J. Wiens, A. Macchi (2014). Ebullated bed fluid dynamics relevant to industrial hydroprocessing, 64th Canadian Chemical Engineering Conference, Niagara Falls, Canada. Oral presentation. D. Pjontek, A. Macchi (2014). Fluid dynamic studies in support of an industrial ebullated bed hydroprocessor. International Workshop on Fluid-Particle Systems, Vancouver, Canada. Oral presentation. D. Pjontek, V. Parisien, A. Macchi (2012). Local bubble characteristics in a bubble column and ebullated bed using a monofibre optical probe at elevated pressures, 62nd Canadian Chemical Engineering Conference, Vancouver, Canada. Oral presentation. D. Pjontek, J. Landry, C.A. McKnight, L.P. Hackman, A. Macchi (2011). Effect of a dispersed immiscible liquid phase on the hydrodynamics of a bubble column and ebullated bed. Gas-Liquid and Gas-Liquid-Solid Reactor Engineering Congress (GLS 10), Braga, Portugal. Oral presentation.