A5042416354- Carbon Dioxide Capture Technologies
- Chemical Looping and Thermochemical Processes
- Granular flow and fluidized beds
- Catalysts for Methane Reforming
- Particle Dynamics in Fluid Flows
- Cyclone Separators and Fluid Dynamics
- Hybrid Renewable Energy Systems
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Fluid Dynamics and Heat Transfer
- Mineral Processing and Grinding
- Industrial Gas Emission Control
- Fluid Dynamics and Mixing
- Hydraulic and Pneumatic Systems
- Metallurgical Processes and Thermodynamics
- Iron and Steelmaking Processes
- Integrated Energy Systems Optimization
- Aerosol Filtration and Electrostatic Precipitation
- Ammonia Synthesis and Nitrogen Reduction
- Thermal Expansion and Ionic Conductivity
- Adsorption and Cooling Systems
- Cavitation Phenomena in Pumps
- Oil, Gas, and Environmental Issues
- Ultrasound and Cavitation Phenomena
- Rheology and Fluid Dynamics Studies
- Global Energy and Sustainability Research
SINTEF Industry
2018-2024
SINTEF
2017-2024
KTH Royal Institute of Technology
2022
Norwegian University of Science and Technology
2016-2019
Steam methane reforming with CO2 capture (blue hydrogen) and water electrolysis based on renewable electricity (green are commonly assumed to be the main supply options in a future hydrogen economy. However, another promising method is emerging form of natural gas pyrolysis (turquoise pure carbon as valuable by-product. To better understand potential turquoise hydrogen, this study presents techno-economic assessment molten salt process. Results show that moderate reactor pressures around 12...
Hydrogen is a promising carbon-neutral energy carrier for future decarbonized sector. This work presents process simulation studies of the gas switching reforming (GSR) hydrogen production with integrated CO2 capture (GSR-H2 process) at minimal penalty. Like conventional steam methane (SMR) process, GSR combusts off-gas fuel from pressure swing adsorption unit to supply heat endothermic reactions. However, completes this combustion using chemical looping mechanism achieve separation. For...
Gas switching reforming (GSR) is a promising technology for natural gas with inherent CO2 capture. Like conventional steam methane (SMR), GSR can be integrated water-gas shift and pressure swing adsorption units pure hydrogen production. The resulting GSR-H2 process concept was techno-economically assessed in this study. Results showed that achieve 96% capture at avoidance cost of 15 $/ton (including transport storage). Most components the are proven technologies, but long-term oxygen...
Is there a place for today's fossil fuel exporters in low-carbon future? This study explores trade channels between energy and importers using novel electricity-hydrogen-steel systems model calibrated to Norway, major natural gas producer, Germany, consumer. Under tight emission constraints, Norway can supply Germany with electricity, (blue) hydrogen, or re-import of captured CO2. Alternatively, it use hydrogen produce steel through direct reduction the world market, an export route not...
Ambitious decarbonization pathways to limit the global temperature rise well below 2 °C will require large-scale CO2 removal from atmosphere. One promising avenue for achieving this goal is hydrogen production biomass with capture. The present study investigates techno-economic prospects of a novel biomass-to-hydrogen process configuration based on gas switching integrated gasification (GSIG) concept. GSIG applies combustion principle indirectly combust off-gas fuel pressure swing adsorption...
Energy penalty is the primary challenge facing CO2 capture and storage (CCS) technology. One possible solution to this gas switching combustion (GSC): a promising technology for gaseous fuel with integrated at almost no direct energy penalty. However, previous work showed that GSC into an IGCC power plant still imposed of 5.7%-points relative unabated plant. This originates mainly from maximum temperature limitation reactors inefficient production CO2-rich stream. Addressing these challenges...
CITATION: Cloete, J. H., et al. 2015. Physical and numerical modelling of a four-strand steelmaking tundish using flow analysis different configurations. Journal the Southern African Institute Mining Metallurgy, 115(5):355-355.
Integrated gasification combined cycles (IGCC) are promising power production systems from solid fuels due to their high efficiency and good environmental performance. Chemical looping combustion (CLC) is an effective route reduce the energy penalty associated with CO2 capture. This concept comprises a metal oxygen carrier circulated between reduction reactor, where syngas combusted, oxidation O2 withdrawn air stream. Parallel CLC, carriers that capable of releasing free in i.e., chemical...
Limiting global temperature rise to well below 2 °C according the Paris climate accord will require accelerated development, scale-up, and commercialization of innovative environmentally friendly reactor concepts. Simulation-based design can play a central role in achieving this goal by decreasing number costly time-consuming experimental scale-up steps. To illustrate approach, multiscale computational fluid dynamics (CFD) approach was utilized study simulate novel internally circulating...
Fuels supplied 76% of global final energy consumption in 2021. Although ongoing electrification efforts can significantly reduce this dominant share, fuels will continue to play a leading role the system. Hydrogen is most studied candidate for decarbonizing fuels, but storage and distribution challenges render it impractical uneconomical many applications. Hence, present study focuses on ammonia methanol that preserve practical benefits traditional petroleum fuels. Four low-carbon fuel...
Gas switching technology (GST) was introduced to facilitate operation and scale-up of pressurized chemical looping-based technologies thus bringing the expected benefits reducing costs energy penalty CO2 capture. GST has so far been applied generate heat/power, hydrogen, syngas, oxygen using fossil fuel gas (but also from biomass for negative emissions) with integrated capture at minimal generating over 50 publication studies demonstrating technical feasibility quantifying potential cost...
This work presents a novel plant configuration for power production from solid fuels with integrated CO2 capture. Specifically, the Gas Switching Combustion (GSC) system is Humid Air Turbine (HAT) cycle and slurry fed entrained flow (GE-Texaco) gasifier or dry (Shell) partial water quench. The primary novelty of proposed GSC-HAT that reduction oxidation reactor stages GSC operation can be decoupled allowing flexible operation, oxygen carrier serving as chemical thermal energy storage medium....
Process intensification by cavitation is gaining widespread attention due to the benefits that intense bubble collapse conditions can provide, yet, several knowledge gaps exist in modelling of such systems. This work studies numerical prediction single dynamics and various approaches be employed estimate changes chemical composition cavitating bubbles. Specific emphasis placed on radical production rates during computational performance, with aim coupling flow models for reactor...
In this work we test the potential of thermochemical energy storage (TCES) for waste-heat recovery in industry processes. Different TCES technologies were considered, finding sorption most promising. The temperature range is extensively wide, so focuses on unexplored range, 100-300°C, which also fits heat generated several hydrate salt MgCl <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> was incorporated into alumina, obtaining a...