Environmental Engineering and Reactor Technology

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Environmental Engineering and Reactor Technology Teaching and research principles of separation, reactor technology and process design The largest research group in the department about 40 PhD-students 10 postdoc/researchers Close cooperation with SINTEF

Jens-Petter Andreassen May-Britt Hägg Hallvard Svendsen Magne Hillestad Teachers and Supervisors Hugo Jakobsen Liyuan(Lilly) Deng Hanna Knuutila Jon Samseth Geert Versteeg

Teaching Reactor technology (Jakobsen/Svendsen): TKP4100 Fluid flow and Heat transfer (Kristoffersen/Svendsen) TKP4110 Chemical Reaction Engineering (Holmen/Andreassen) TKP4160 Transport Phenomena 7. term (Jakobsen and Grimes) TKP4145 Reactor Technology 8. term (Jakobsen) Specialization modules (9. term) :TKP6 Reactor Modeling Process Design (Hillestad): TKP4165 Process Design, mandatory 6 th term (Hillestad) TKP4170/71 Process Design Projects, mandatory 7 th or 8 th term (Hillestad) Specialization module: TKP11 Advanced process simulation (Preizig/Hillestad)

Teaching Membrane technology (Deng): Specialization module: TKP8 Membrane separation (Deng) Crystallization and Particle Design (Andreassen): TKP4190 Fabrication and Application of Nanomaterials (Andreassen, Glomm) Specialization module: TKP9 Crystallization and particle design CO 2 -Capture (Knuutila, Svendsen, Hägg, Hillestad, Jakobsen, Andreassen): Specialization module: (9. term) :TKP7 Gas cleaning (Hägg/Deng/Knuutila/Svendsen/Versteeg) Specialization module: (9. term) :TKP1? Absorption (Svendsen/Knuutila/Versteeg)

Reactor Technology Topics of research/projects: Reactor modeling and analysis Hydrogen production with Sorption Enhanced Steam Methane Reforming (SE-SMR) and Chemical Looping Reforming (CLR), and combustion by Chemical Looping Combustion (CLC) Interfacial transport (bubble/droplet coalescence/breakage) Multicomponent mass diffusion processes Project proposals: (1-3) Population balance modeling of gas-solid, gas-liquid, liquid-liquid systems. (4) Experiments on PBE kernels and (5) Investigation of Fischer-Tropsch process in slurry bubble column. Modeling Methodology: Problem analysis (physical understanding of the problem) Modeling (mathematical representation of these problem physics) Numerical solution methods Implementation (programming) Parallelization (program to distribute work on many processors) Supercomputing (expensive computer, fast with large memory) Model validation (everything correct and physical?) Simulation/analysis (what can we learn from our simulations?) Transport Phenomena Reactor analysis and design Gas cleaning Oil and gas transport climate Acid rain Weather forecast Process control

Process Design Project / Master topics Systematic Staging in Chemical Reactor Design Dynamic modelling and simulation of a CO 2 capture plant Modelling and optimization of a Gas-to-Liquid plant Energy considerations around an amine CO 2 capture plant Offshore methanol production Offshore Gas-to-Liquid production Modelling and simulation of catalyst deactivation in fixed bed methanol synthesis reactor. Process Technologies Syngas production Methanol and ammonia FT technologies CO 2 capture Polyolefin production

Membrane research 1 Purification of gases (flue gas, natural gas, CO 2, VOC, SF 6..),. 2 Renewable energy (H 2, upgrading of biogas) 3 Purification of aggressive gases (Cl 2, HCl, SO 2 ) 4 Simulation of environmental membrane processes for energy optimization 5 Membranes in bioprosesser (biodiesel, bioethanol) 6 Membrane hollow fibre spinning CO 2 H 2 Research Focus : MATERIAL DEVELOPMENT & TRANSPORT Phenomena through MEMBRANES CO 2 + H 2 CO 2 -selective hollow fibre membrane to separate CO 2 from mixtures of CO 2 /H 2

Specialization Projects/Master Theses Membrane technology Clean technology: Production and regeneration of carbon hollow fibre membranes for gas separation The effect of flue gas pollutants (NO x and SO 2 ) on FSC (fixed-site carrier) membrane performance Pilot scale studies for cement industry CO 2 -capture Production of pilot scale flat sheet membranes Production of hollow fibre membranes The effect of natural gas contaminants on FSC (fixed-site carrier) membrane Hydrodynamic studies for a large scale membrane module Production of osmotic membranes Membrane contactor studies

Crystallization and particle design Specialization Projects/Master CO 2 -capture in carbonate solutions with simultaneous precipitation Nucleation kinetics of carbonate particles in natural gas production. Crystal growth kinetics of carbonate particles in natural gas production. Scaling of calcium carbonate on heated surfaces. Spherulitic growth of crystals in solution Precipitation of calcium phosphate and carbonate in presence of biopolymers. Gel beads of alginate mineralized with calcium phosphate, the scale bar is 500 m. The inset shows nanocrystals on the bead surface, scale bar 300 nm.

CO 2 capture by absorption Absorbent development From molecular modelling to pilot testing Two liquid phase forming solvents Thermodynamics and kinetics modelling Solvent stability and degradation CO 2 -capture pilot plant Development of process simulation tools Equilibrium models Mass transfer models CO2SIM process simulator Pilot plant testing of new solvents CO 2 removal from exhaust gases from Alproduction and bio-mass.

Specialization projects absorption Experimental and/or modeling VLE CO 2 -amine systems CO 2 -carbonate systems Equilibria for unloaded systems Kinetics and mass transfer for CO 2 absorption Physical and thermal properties Stability and degradation of solvents Thermodynamic modeling of acid gas/absorbent systems Process simulation of CO 2 absorption systems

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