Article
Chemistry, Multidisciplinary
Babak Keivani, Afsin Gungor
Summary: This study conducted a detailed techno-economic assessment of Turkish domestic coal, biomass, and torrefied biomass as fuel for oxygen combustion in the CAN Power plant. The results showed that oxygen-enriched combustion is more economical in terms of carbon capture and storage, with slightly lower costs in electricity, CO2 avoidance, and CO2 capture compared to air combustion. The study suggests that 30% oxygen-enriched co-combustion can be a short-term economic retrofitting option for existing power plants.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Green & Sustainable Science & Technology
Mahdi Kheirinik, Shaab Ahmed, Nejat Rahmanian
Summary: The study evaluated three different CO2 capture technologies for coal power plants from technical and economic perspectives, finding that post-combustion technology is more attractive in terms of maturity and cost-effectiveness, especially since it can be applied to existing plants without major disruption to their current operation.
Article
Green & Sustainable Science & Technology
Mathew Dennis Wilkes, Jude Ejeh, Diarmid Roberts, Solomon Brown
Summary: Dispatchable power sources are essential for electricity system stability and security of supply. In the United Kingdom, small-scale gas turbines are currently used for this purpose. This study focuses on the inclusion of Carbon Capture and Storage (CCS) in small-scale gas turbines and calculates the levelised cost of electricity (LCOE). The results show that the LCOE almost triples when CCS is added, due to economies of scale and low capacity factor. Future research should explore alternative forms of CO2 capture and different dispatchable power generation options.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Thermodynamics
Navid Khallaghi, Giampaolo Manzolini, Vincenzo Spallina, Syed Zaheer Abbas, Eric De Coninck
Summary: This study evaluates the techno-economic feasibility of using methyl diethanolamine for pre-combustion carbon capture in the utilization of blast furnace gas in the iron and steel industry. The effectiveness of water gas shift implementation on capture performance is also investigated. Results show that while water gas shift implementation increases capture efficiency, it also raises capture costs.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Siyue Ren, Xiao Feng, Yufei Wang
Summary: The research conducted emergy analysis on coal and biomass based IGCC power generation systems with/without CCS, showing that the sustainability of systems can be improved with the integration of CCS but will result in increased investment costs. It was found that under high CO2 tax values, adopting CCS can further enhance the sustainability of IGCC systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Chi Kong Chyong, David M. Reiner, Rebecca Ly, Mathilde Fajardy
Summary: This research provides new insights into integrating flexible combined-cycle gas turbines with post-combustion carbon capture and storage (CCGT-CCS) for low-carbon power systems. A versatile unit-commitment optimization model of CCGT-CCS was developed, highlighting its adaptability. The study emphasizes the economic viability of flexible CCGT-CCS and the importance of flexible solvent storage solutions in low-carbon power systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Thermodynamics
Javad Asadi, Pejman Kazempoor
Summary: This study conducted a comprehensive evaluation of membrane separation processes for carbon capture systems, revealing that considering sweep gas and increasing CO2 concentration can reduce energy consumption.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Review
Energy & Fuels
Xiang Li, Zhijun Peng, Yiqiang Pei, Tahmina Ajmal, Khaqan-Jim Rana, Abdel Aitouche, Raouf Mobasheri
Summary: As global warming worsens, oxy-fuel combustion is seen as a promising solution to reduce carbon emissions in IC engines. Optimizing oxygen concentration, EGR rate, ignition timing, compression ratio, fuel injection, and water injection is crucial for achieving this goal.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Chemical
Xiaowan Peng, Yun-Lei Peng, Meng Huo, Jin Zhao, Qiuwei Ma, Bei Liu, Chun Deng, Mingke Yang, Baocan Dong, Changyu Sun, Guangjin Chen
Summary: To enhance CO2 capture capacity and selectivity, researchers have developed a porous slurry composed of ZIF-8 and C16 isoparaffin. This optimized slurry exhibits low viscosity, high sorption speed, and low CO2 sorption heat. It also demonstrates higher CO2 sorption capacity and selectivity compared to existing commercial CO2 absorbents. Additionally, the slurry system can be easily regenerated through pressure swing, making it a promising alternative for separating IGCC gas with higher efficiency and lower energy cost.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Thermodynamics
Ana-Maria Cormos, Simion Dragan, Calin-Cristian Cormos
Summary: Membrane technology shows promise for CO2 capture from industrial gases, particularly in gasification-based power plants. This study evaluated the application of membrane technology in both alone and hybrid configurations, compared to chemical and physical absorption methods, and found that membrane technology has greater net energy efficiency and lower costs.
APPLIED THERMAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Agneev Mukherjee, Pieter Bruijnincx, Martin Junginger
Summary: The maritime sector accounts for a significant amount of global greenhouse gas emissions and is facing pressure to decarbonise. Renewable fuels show potential, but their high costs are a barrier. Carbon Capture and Storage (CCS) can enhance marine fuel decarbonisation, but adds to the cost. This study compares the costs of four renewable carbon fuels and considers the impact of carbon taxation. The results show that without carbon taxation, renewable fuels are not competitive, and methanol and DME produced using CO2 capture are the most cost-effective options.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Energy & Fuels
Fei Yu, Xiaodong Chu, Donglei Sun, Xiaoming Liu
Summary: A low-carbon optimal dispatch model is proposed in this study, incorporating carbon capture and storage technology and the uncertainty of wind power. By accurately calculating carbon dioxide emissions and incorporating carbon tax mechanism, significant reduction in carbon emissions of coal-fired units can be achieved.
Article
Green & Sustainable Science & Technology
Artjom Saia, Dmitri Neshumayev, Aaro Hazak, Priit Sander, Oliver Jarvik, Alar Konist
Summary: This study conducts a comparative techno-economic analysis of adding CO2 capture technologies to existing oil shale power plants in Estonia. The results show that oxy-fuel combustion capture performs better than post-combustion capture, but it leads to a reduction in power plant efficiency. The feasibility of CO2 capture in Estonian oil shale power plants depends on long-term trends in the electricity market and CO2 emissions trading system, and it may require state aid, which could reduce the overall competitiveness of the Estonian economy.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Thermodynamics
R. Lopez, J. Gonzalez-Arias, F. J. Pereira, C. Fernandez, J. Cara-Jimenez
Summary: The study found that the best blend composition for hydrochar production is 75% olive pruning and 25% off-specification compost, with hydrochar yield being a critical variable to optimize in future research. Technical simulations demonstrated that using olive pruning instead of the mentioned blend could increase electricity cost, and the use of hydrochar as fuel may lead to increased total capital investment and electricity cost.
Article
Chemistry, Multidisciplinary
Garrett M. Cole, Jonah M. Greene, Jason C. Quinn, Beth McDaniel, Lisa Kemp, David Simmons, Tyler Hodges, David Nobles, Taylor L. Weiss, John McGowen, Steve McDaniel
Summary: This study evaluates a novel biomimetic coating technology that uses a hydrogel seeded with microalgae biomass printed on a polyethylene substrate. The coating exploits the high photosynthetic rates of microalgae to fix atmospheric CO2 into cellulose using solar energy. The cellulose is then converted to biochar through pyrolysis for durable carbon sequestration without underground storage.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Thermodynamics
Calin-Cristian Cormos, Ana-Maria Cormos, Letitia Petrescu, Simion Dragan
Summary: The study assessed the technical and economic aspects of decarbonized biogas catalytic reforming process, highlighting the promising performance of iron/calcium looping systems in terms of increasing overall efficiency, reducing CO2 emissions, and improving key economic parameters compared to the benchmark chemical scrubbing concept. Additionally, the flexibility in hydrogen and power generation brings advantages such as higher cumulative energy efficiency and improved cyclic operation.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Ana-Maria Cormos, Simion Dragan, Calin-Cristian Cormos
Summary: Membrane technology shows promise for CO2 capture from industrial gases, particularly in gasification-based power plants. This study evaluated the application of membrane technology in both alone and hybrid configurations, compared to chemical and physical absorption methods, and found that membrane technology has greater net energy efficiency and lower costs.
APPLIED THERMAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Stefan Cristian Galusnyak, Letitia Petrescu, Calin-Cristian Cormos
Summary: This study compares the production of biodiesel using traditional and intensified methods, as well as the environmental impact of using CO2 and H-2 as raw materials versus natural gas. The findings suggest that the intensified method performs better from a technical perspective, while the classic approach is more efficient when CO2 and H-2 are used as feedstock.
Article
Energy & Fuels
Calin-Cristian Cormos
Summary: This paper assesses different decarbonization systems integrated into cement production plants from technical, environmental, and economic perspectives. The results show that the membrane and oxy-combustion concepts have the lowest cement production cost and the full oxy-combustion plant followed by the membrane concept exhibit the lowest CO2 avoided costs comparable with the current emission tax. The reactive gas-solid system (calcium looping) exhibits superior indicators than the chemical scrubbing system due to high-temperature heat recovery.
Article
Chemistry, Physical
Dora-Andreea Chisalita, Letitia Petrescu, Stefan Cristian Galusnyak, Calin-Cristian Cormos
Summary: A cradle-to-gate life cycle assessment was conducted to evaluate the environmental impact of hydrogen production using chemical looping technologies. The performance of these technologies was compared with conventional hydrogen production and green hydrogen production to determine the most environmentally friendly option. The results showed that chemical looping hydrogen production had lower environmental burden compared to other methods, and green hydrogen had the smallest overall environmental impact except for certain indicators.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Alexandru-Constantin Bozonc, Ana-Maria Cormos, Simion Dragan, Cristian Dinca, Calin-Cristian Cormos
Summary: A comprehensive mathematical model was developed to evaluate the CO2 capture process in a microporous polypropylene hollow-fiber membrane countercurrent contactor. The model showed good agreement with experimental data and determined the effects of gas flow rate, liquid absorbent flow rate, and CO2 concentration on CO2 removal efficiency.
Article
Thermodynamics
Stefan Cristian Galusnyak, Letitia Petrescu, Dora Andreea Chisalita, Calin-Cristian Cormos
Summary: This study evaluates the production of methanol through direct CO2 hydrogenation and its conversion into various derivatives, and conducts an environmental assessment. The results suggest that alkali biodiesel and MTBE production are the most promising routes for MeOH conversion, and the process of methanol production and conversion into alkali biodiesel has the lowest environmental impact.
Article
Environmental Sciences
Stefan Cristian Galusnyak, Letitia Petrescu, Calin-Cristian Cormos
Summary: Decarbonizing the cement manufacturing sector is crucial due to its significant energy consumption and carbon emissions. This study evaluates the technical and environmental aspects of decarbonization through process modeling, thermal integration analysis, and LCA. The integration of carbon capture and storage (CCS) methods in cement production leads to a substantial reduction in global warming potential (GWP), with CaL technology outperforming others both in terms of performance and environmental impact.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Biochemistry & Molecular Biology
Maytham Alabid, Calin-Cristian Cormos, Cristian Dinca
Summary: This paper analyzed the technical and economic integration of spiral wound membranes in a coal-fired power plant. The study found that using two serialized stages can achieve high efficiency and high CO2 purity in capturing process, while decreasing the overall plant efficiency and increasing the levelized cost of electricity.
Article
Engineering, Environmental
Flavia-Maria Ilea, Ana-Maria Cormos, Simion Dragan, Calin-Cristian Cormos
Summary: This paper presents a novel CO2 capture technique using a three-phase gas-solid-liquid absorption column and a complex hydrodynamics model. The model shows high correlation with experimental data and can predict the system's performance accurately.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Stefan Cristian Galusnyak, Letitia Petrescu, Dora Andreea Chisalita, Calin-Cristian Cormos, Marco Ugolini
Summary: Due to the availability of residual biomass, the use of advanced biofuels produced from secondary biomass is expected to increase and contribute significantly to achieving net-zero emissions. This study explores the production of bio-methanol using a new process configuration designed to improve environmental performance compared to existing technologies. The environmental evaluation was conducted using Life Cycle Assessment (LCA) methodology and impact assessment method ReCiPe with the help of GaBi software. Results indicate better performance in eight out of nine impact categories studied for wooden biomass scenarios compared to exhausted olive pomace.
Article
Thermodynamics
Calin-Cristian Cormos
Summary: This study assesses the techno-economic and environmental implications of decarbonized green hydrogen generation using biomass gasification. The results indicate that green hydrogen production from decarbonized biomass gasification has promising potential, with high energy conversion efficiency, lower energy and cost penalties, and negative carbon emissions.
Article
Thermodynamics
Calin-Cristian Cormos
Summary: Achieving climate neutrality requires decisive actions to curb CO2 emissions, such as boosting renewable sources, increasing energy efficiency, and deploying CCUS applications. This study assesses large-scale synthetic natural gas (SNG) and methanol production from renewable H2 and captured CO2, showing high energy efficiency (e.g., 54-58%) and CO2 conversion yields (96-99%). However, from an economic perspective, these solutions are not yet competitive compared to existing fossil-based systems.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Ana-Maria Cormos, Letitia Petrescu, Calin-Cristian Cormos
Summary: This study evaluates a time-flexible natural gas-based chemical looping combustion system for efficient power generation and high decarbonization rate. The system, fitted with oxygen carrier storage facilities, improves performance indicators and reduces investment, operational, and CO2 capture costs.
Article
Engineering, Environmental
Vlad-Cristian Sandu, Calin-Cristian Cormos, Ana-Maria Cormos
Summary: This study developed a dynamic multiscale model and a CFD multilayer particle model to simulate and investigate packed bed syngas CLC process. The results showed that larger particle sizes and lower flow rates can reduce pressure drops, while smaller particle sizes contribute to higher energy efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)