Browsing SINTEF Open by Author "Cloete, Schalk Willem Petrus"
Now showing items 41-60 of 69
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Mapping the operating performance of a novel internally circulating fluidized bed reactor applied to chemical looping combustion
Osman, Mogahid; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2020)Chemical looping combustion is a promising technology for minimizing the energy penalty of CO2 capture. To accelerate the scale-up and commercialization of this technology for pressurized operation, the internally circulating ... -
Methanol from solid fuels: A cost-effective route to reduced emissions and enhanced energy security
Arnaiz del Pozo, Carlos; Jiménez Álvaro, Ángel; Cloete, Schalk Willem Petrus (Peer reviewed; Journal article, 2022)Methanol (MeOH) is gaining increasing relevance as a future energy carrier. It can be produced through multiple avenues, including locally available solid fuels where the CO2 footprint of coal-derived MeOH can be strongly ... -
Multiscale modelling of packed bed chemical looping reforming
Singhal, Arpit; Cloete, Schalk Willem Petrus; Quinta-Ferreira, Rosa; Amini, Shahriar (Peer reviewed; Journal article, 2017)A comparison of reactive flows on two distinct scales is presented here (i) Particle resolved direct numerical simulation (PR-DNS), and (ii) 1D packed bed model. The PR-DNS geometry is meshed with polyhedral elements both ... -
A Novel Swing Adsorption Reactor Cluster (SARC) for Cost Effective Post-combustion CO2 Capture: A Thermodynamic Assessment
Zaabout, Abdelghafour; Romano, Matteo C.; Cloete, Schalk Willem Petrus; Giuffrida, Antonio; Morud, John; Chiesa, Paolo; Amini, Shahriar (Peer reviewed; Journal article, 2017)The SARC consists of a number of standalone reactors where a solid sorbent is carbonated by a flue gas and regenerated by a combination of vacuum and temperature swing. Efficiency is maximized through heat integration ... -
On capital utilization in the hydrogen economy: The quest to minimize idle capacity in renewables-rich energy systems
Cloete, Schalk Willem Petrus; Ruhnau, Oliver; Hirth, Lion (Peer reviewed; Journal article, 2020)The hydrogen economy is currently experiencing a surge in attention, partly due to the possibility of absorbing variable renewable energy (VRE) production peaks through electrolysis. A fundamental challenge with this ... -
On the choice of closure complexity in anisotropic drag closures for filtered Two Fluid Models
Cloete, Jan Hendrik; Cloete, Schalk Willem Petrus; Radl, Stefan; Amini, Shahriar (Journal article; Peer reviewed, 2019)Filtered Two Fluid Models (fTFMs) aim to enable accurate industrial-scale simulations of fluidized beds by means of closures accounting for the effects of bubbles and clusters. The present study aims to improve anisotropic ... -
Optimal deployment of energy services for economic upliftment of low-income communities: A South African case study
Tulkens, Bart; Cloete, Schalk Willem Petrus; Muvhali, Pfunzo; Bastiaans, Rob (Peer reviewed; Journal article, 2023)Low-income communities face a causality dilemma: A lack of energy services hampers income growth and insufficient income hampers energy service provision. Interventions delivering cost-effective energy services can address ... -
Oxygen production at intermediate temperatures using Ca2AlMnO5+δ double perovskite-type oxides
Pishahang, Mehdi; Larring, Yngve; Cloete, Schalk Willem Petrus; Sunding, Martin Fleissner; Denonville, Christelle; Li, Zuoan (Peer reviewed; Journal article, 2023)Double-perovskite Ca2AlMnO5+δ exhibits promising oxygen uptake and release capacity at intermediate temperatures (400–700 °C), which makes it an interesting candidate for in situ oxygen production in an integrated gasification ... -
The oxygen production pre-combustion (OPPC) IGCC plant for efficient power production with CO2 capture
Arnáiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Cloete, Jan Hendrik; Jiménez Álvaro, Ángel; Amini, Shahriar (Peer reviewed; Journal article, 2019)This work presents a novel integrated gasification combined cycle (IGCC) power plant configuration for CO2 capture with minimal energy penalty. The proposed oxygen production pre-combustion (OPPC) power plant synergistically ... -
Pathways to low-cost clean hydrogen production with gas switching reforming
Nazir, Shareq Mohd; Cloete, Jan Hendrik; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2020)Gas switching reforming (GSR) is a promising technology for natural gas reforming with inherent CO2 capture. Like conventional steam methane reforming (SMR), GSR can be integrated with water-gas shift and pressure swing ... -
The potential of chemical looping combustion using the gas switching concept to eliminate the energy penalty of CO2 capture
Arnáiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Cloete, Jan Hendrik; Jiménez Álvaro, Ángel; Amini, Shahriar (Journal article; Peer reviewed, 2019)Energy penalty is the primary challenge facing CO2 capture and storage (CCS) technology. One possible solution to this challenge is gas switching combustion (GSC): a promising technology for gaseous fuel combustion with ... -
The Potential of Chemically Recuperated Power Cycles in Markets with High Shares of Variable Renewables
Arnaiz del Pozo, Carlos; Jiménez Álvaro, Ángel; Cloete, Schalk Willem Petrus; de Hijas, Jose Antonio Garcia (Peer reviewed; Journal article, 2023)Rising shares of variable wind and solar generation in decarbonized electricity systems motivate the development of novel power cycles employing unconventional fuels. Innovative designs must be highly flexible and profitable ... -
The Potential of Gas Switching Partial Oxidation Using Advanced Oxygen Carriers for Efficient H2 Production with Inherent CO2 Capture
del Pozo, Carlos Arnaiz; Cloete, Schalk Willem Petrus; Álvaro, Ángel Jiménez; Donat, Felix; Amini, Shahriar (Peer reviewed; Journal article, 2021)The hydrogen economy has received resurging interest in recent years, as more countries commit to net-zero CO2 emissions around the mid-century. “Blue” hydrogen from natural gas with CO2 capture and storage (CCS) is one ... -
Prospects of the Novel CSAR Concept for Fully Electric or Flexible Electric–Thermal Hybrid CO2 Capture from CHP Plants
Cloete, Schalk Willem Petrus; Dhoke, Chaitanya; Bonalumi, Davide; Morud, John; Giuffrida, Antonio; Romano, Matteo Carmelo; Zaabout, Abdelghafour (Peer reviewed; Journal article, 2023)Momentum is gathering behind the goal of achieving net-zero CO2 emissions by 2050 in Europe and around the world. Negative emissions via biomass or waste combustion with CO2 capture can make net zero considerably easier ... -
Review of pressurized chemical looping processes for power generation and chemical production with integrated CO2 capture
Osman, Mogahid; Khan, Mohammed Nazeer Ul Hasan; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2021)Chemical looping has great potential for reducing the energy penalty and associated costs of CO2 capture from fossil fuel-based power and chemical production while maintaining high efficiency. However, pressurized operation ... -
Review on reactor configurations for adsorption-based CO2 capture
Dhoke, Chaitanya; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2021)Adsorption-based CO2 capture has enjoyed considerable research attention in recent years. Most of the research efforts focused on sorbent development to reduce the energy penalty. However, the use of suitable gas–solid ... -
Simplified model description of a CLOP reactor for system simulation and analysis
Morud, John; Tobiesen, Finn Andrew; Cloete, Schalk Willem Petrus; Larring, Yngve; Chikukwa, Actor; Pishahang, Mehdi (Peer reviewed; Journal article, 2017)In order to perform overall system simulations and optimization at the flowsheet level, simplified models of process units are required. We present a simplified model of the CLOP reactor (chemical looping for oxygen ... -
Simulation-Based Design and Economic Evaluation of a Novel Internally Circulating Fluidized Bed Reactor for Power Production with Integrated CO2 Capture
Cloete, Jan Hendrik; Khan, Mohammed Nazeer Ul Hasan; Cloete, Schalk Willem Petrus; Amini, Shahriar (Journal article; Peer reviewed, 2019)Limiting global temperature rise to well below 2 °C according to the Paris climate accord will require accelerated development, scale-up, and commercialization of innovative and environmentally friendly reactor concepts. ... -
Sorbents screening for post-combustion CO2 capture via combined temperature and pressure swing adsorption
Dhoke, Chaitanya; Cloete, Schalk Willem Petrus; Krishnamurthy, Shreenath; Seo, Hwimin; Luz, Ignacio; Soukri, Mustapha; Park, Yong-ki; Blom, Richard; Amini, Shahriar; Zaabout, Abdelghafour (Peer reviewed; Journal article, 2020)Adsorption-based post-combustion CO2 capture is enjoying significant research attention due to its potential for significant reductions in energy penalty, cost and environmental impact. Recent sorbent development work has ... -
Study of the Cost Reductions Achievable from the Novel SARC CO2 Capture Concept Using a Validated Reactor Model
Dhoke, Chaitanya; Cloete, Schalk Willem Petrus; Amini, Shahriar; Zaabout, Abdelghafour (Peer reviewed; Journal article, 2021)New process concepts, such as the swing adsorption reactor cluster (SARC) CO2 capture process, are often techno-economically investigated using idealized modeling assumptions. This study quantifies the impact of this ...