Blar i SINTEF Open på forfatter "Jiménez Álvaro, Ángel"
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Ammonia from solid fuels: A cost-effective route to energy security with negative CO2 emissions
Arnaiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Jiménez Álvaro, Ángel (Peer reviewed; Journal article, 2023)This study investigates a potential solution to the global challenge of secure, affordable, and low-carbon energy supply: ammonia production from local coal and biomass resources with CO2 capture for negative emissions. ... -
Carbon-negative hydrogen: Exploring the techno-economic potential of biomass co-gasification with CO2 capture
Arnaiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Jiménez Álvaro, Ángel (Peer reviewed; Journal article, 2021)The hydrogen economy is receiving increasing attention as a complement to electrification in the global energy transition. Clean hydrogen production is often viewed as a competition between natural gas reforming with CO2 ... -
The future of fuels: Uncertainty quantification study of mid-century ammonia and methanol production costs
Cloete, Schalk Willem Petrus; Arnaiz del Pozo, Carlos; Cloete, Jan Hendrik; Jiménez Álvaro, Ángel (Peer reviewed; Journal article, 2023)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 in the global energy system. ... -
Gas switching technology: Economic attractiveness for chemical looping applications and scale up experience to 50 kWth
Ugwu, Ambrose; Arnaiz del Pozo, Carlos; Zaabout, Abdelghafour; Nazir, Shareq Mohd; Kalendar, Nimet Uzun; Cloete, Schalk Willem Petrus; Szima, Szabolcs; Fogarasi, Szabolcs; Donat, Felix; van Diest, Geert; Cloete, Jan Hendrik; Jiménez Álvaro, Ángel; Albertsen, Knuth; Cormos, Ana-Maria; Cormos, Calin-Cristian; Amini, Shahriar (Peer reviewed; Journal article, 2022)Gas switching technology (GST) was introduced to facilitate operation and scale-up of pressurized chemical looping-based technologies thus bringing the expected benefits of reducing costs and energy penalty of CO2 capture. ... -
Integration of Chemical Looping Combustion in the Graz Power Cycle
Arnaiz del Pozo, Carlos; Sánchez-Orgaz, Susana; Navarro-Calvo, Alberto; Jiménez Álvaro, Ángel; Cloete, Schalk Willem Petrus (Journal article, 2024)Effective decarbonization of the power generation sector requires a multi-pronged approach, including the implementation of CO2 capture and storage (CCS) technologies. The Graz cycle features oxy-combustion CO2 capture in ... -
Integration of gas switching combustion and membrane reactors for exceeding 50% efficiency in flexible IGCC plants with near-zero CO2 emissions
Arnaiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Chiesa, Paolo; Jiménez Álvaro, Ángel; Amini, Shahriar (Peer reviewed; Journal article, 2020)Thermal power plants face substantial challenges to remain competitive in energy systems with high shares of variable renewables, especially inflexible integrated gasification combined cycles (IGCC). This study addresses ... -
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 ... -
Novel Recuperated Power Cycles for Cost-Effective Integration of Variable Renewable Energy
Arnaiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Chiesa, Paolo; Jiménez Álvaro, Ángel (Peer reviewed; Journal article, 2024)The ongoing transition to energy systems with high shares of variable renewables motivates the development of novel thermal power cycles that operate economically at low capacity factors to accommodate wind and solar ... -
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 ... -
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 ... -
System-friendly process design: Optimizing blue hydrogen production for future energy systems
Cloete, Schalk Willem Petrus; Arnaiz del Pozo, Carlos; Jiménez Álvaro, Ángel (Peer reviewed; Journal article, 2022)While the effects of ongoing cost reductions in renewables, batteries, and electrolyzers on future energy systems have been extensively investigated, the effects of significant advances in CO2 capture and storage (CCS) ... -
Techno-economic assessment of integrated NH3-power co-production with CCS and energy storage in an LNG regasification terminal
Arnaiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Jiménez Álvaro, Ángel (Peer reviewed; Journal article, 2024)Energy efficiency and carbon capture and storage (CCS) are two key levers to attain global warming targets. Integration of various industrial and energy processes as well as complementary use of fuels with low carbon ... -
Techno-economic assessment of long-term methanol production from natural gas and renewables
Arnaiz del Pozo, Carlos; Cloete, Schalk Willem Petrus; Jiménez Álvaro, Ángel (Peer reviewed; Journal article, 2022)Growing climate change concerns are driving interest in alternative energy carriers to fossil fuels. Methanol (MeOH) is a promising candidate to alleviate the challenges faced by hydrogen regarding transportation and ...