Article
Green & Sustainable Science & Technology
Han Sol Jung, Seung Gul Ryoo, Yong Tae Kang
Summary: This study established an analysis model using life cycle assessment data to evaluate the environmental impact of a coal power plant in Korea. The results showed that applying a CO2 capture module can effectively reduce the global warming potential. It also emphasized the importance of considering both time horizon and country characterization factor in assessing environmental impact.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Nela Slavu, Adrian Badea, Cristian Dinca
Summary: This study analyzed the use of different concentrations of ammonia in capturing post-combustion CO2 in a coal-fired power station and compared it with the reference MEA case. The results showed that the CO2 capture cost was lowest for the process based on 7% ammonia, and the overall efficiency was optimized for 15% ammonia.
Article
Thermodynamics
Abolghasem Kazemi, Jovita Moreno, Diego Iribarren
Summary: There is a growing concern about the environmental impacts of natural gas power plants. This paper simulates and assesses 11 alternatives of natural gas combined cycle power plants with different CO2 capture materials and potential ORC implementation. The results show that the system based on post-combustion CO2 capture with a-MDEA and ORC has a superior economic profile and better environmental performance in terms of climate change and fossil resource depletion.
Article
Energy & Fuels
Seyed Mohsen Hosseini, Alireza Aslani, Alibakhsh Kasaeian
Summary: Besat is a natural gas-fired power plant in Tehran, Iran, equipped with a post-combustion CO2 capture unit. The captured CO2 is sold to beverage companies for the production of carbonated soft drinks.
Article
Energy & Fuels
Miyuru Kannangara, Jalil Shadbahr, Madhav Vasudev, Jianjun Yang, Lei Zhang, Farid Bensebaa, Eric Lees, Grace Simpson, Curtis Berlinguette, Jingjing Cai, Emily Nishikawa, Sean McCoy, Heather MacLean, Joule Bergerson
Summary: Early evaluation of carbon capture and utilization (CCU) pathways is crucial in guiding future development and commercialization. However, such evaluations are challenging due to technological uncertainties. In this study, a standardized methodology is proposed to compare synthetic fuel production pathways based on different CO2 electrolysis technologies. The evaluation results show that both pathways have advantages in terms of cost and emission reduction, but uncertainties exist.
Article
Chemistry, Multidisciplinary
Faezah Isa, Haslinda Zabiri, Noorlisa Harun, Azmi M. Shariff
Summary: This study investigates the application of promoted potassium carbonate with glycine as a chemical solvent for CO2 removal through dynamic simulation and control. The designed control strategy demonstrates satisfactory response under varying changes in inlet gas flow rate. Furthermore, the use of model predictive controller with state-space model system identification achieves quick disturbance rejection.
Article
Thermodynamics
Shiyi Chen, Nan Zhou, Mudi Wu, Shubo Chen, Wenguo Xiang
Summary: This paper investigates the integration of a natural gas-fueled MCFC with internal reforming and chemical looping air separation (CLAS) to achieve high-efficiency power generation with CO2 capture. The system is analyzed for thermodynamic and economic performance, and the results show the plant net power efficiency, CO2 capture rate, and cost of electricity.
Article
Chemistry, Applied
Janna V. Veselovskaya, Vladimir S. Derevschikov, Anton S. Shalygin, Dmitry A. Yatsenko
Summary: By impregnating porous zirconia aerogels with K2CO3, a series of composite materials were prepared, with the composite sorbent containing 23% K2CO3 demonstrating the highest CO2 absorption capacity. The study suggests that some of the K2CO3 loaded into zirconia mesopores do not actively participate in CO2 absorption and desorption processes.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Zhijian Dong, Xuemin Ye, Jintao Jiang, Chunxi Li
Summary: Pollutant emissions from coal-fired power plants are a major cause of environmental issues, and finding clean utilization methods for energy in these plants is crucial. This study compares the energy balance and overall performance of two technical scenarios - a coal-fired CCS power generation system and a solar-aided coal-fired power generation system integrating ORC and CCS. Life cycle assessments and sensitivity analyses were conducted to evaluate the environmental impact and key factors affecting performance. The results suggest that the solar-aided system shows more potential for reducing environmental impact compared to the other scenarios.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Ying-jie Zhao, Yuan-yuan Duan, Qian Liu, Yang Cui, Usama Mohamed, Yu-ke Zhang, Zhi-li Ren, Yi-feng Shao, Qun Yi, Li-juan Shi, William Nimmo
Summary: The study compared the coal-based CLC power plant with other types of power plants in terms of resource consumption, energy consumption, environmental impact potential, and economic performance using a life cycle assessment method. The results showed the potential and deficiencies of the CLC power plant in a life cycle perspective.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Naser S. Matin, William P. Flanagan
Summary: A comparative life cycle assessment was conducted on subcritical and supercritical coal fired power plants with and without CO2 capture unit. The results showed that adding a CO2 capture unit had significant benefits for global warming but had negative impact on other environmental categories. MEA-based capture unit performed better than ammonia-based.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Green & Sustainable Science & Technology
Usama Mohamed, Ying-jie Zhao, Qun Yi, Li-juan Shi, Guo-qing Wei, William Nimmo
Summary: The study examined the life cycle energy use, CO2 emissions, and cost input of biomass gasification and biomass/coal gasification power generation plants, comparing them with coal combustion technologies. Gasification power plants demonstrated lower energy input and CO2 emissions but higher costs, while coal power plants showed lower energy and cost input but higher CO2 emissions.
Article
Chemistry, Multidisciplinary
Dongseong Kang, Jaewon Byun, Jeehoon Han
Summary: This study quantified the environmental impacts of CO2-based FA production using CCU technology, showing significant reduction in GHG emissions and fossil resource depletion compared to conventional strategies. Analysis identified utility input as a major contributor to environmental burden in all strategies, proposing improvements in energy efficiency and introduction of renewable electricity sources to develop a more environmentally feasible strategy.
Article
Energy & Fuels
Sasitron Angkanawisan, Pornpote Piumsomboon, Benjapon Chalermsinsuwan
Summary: This study focuses on the effects of regeneration temperature and pressure on the regeneration rate of non-modified and modified K2CO3/gamma-Al2O3 with monoethanolamine (MEA). Results show that an increase in regeneration temperature and a decrease in regeneration pressure enhance the regeneration rate of both non-modified and modified K2CO3/gamma-Al2O3.
Article
Chemistry, Physical
Thomas Moore, Diego I. Oyarzun, Wenqin Li, Tiras Y. Lin, Maxwell Goldman, Andrew A. Wong, Shaffiq A. Jaffer, Amitava Sarkar, Sarah E. Baker, Eric B. Duoss, Christopher Hahn
Summary: In low-temperature CO2 electrolysis, the optimal single-pass CO2 conversion for ethylene production is typically low, around 5%-10%, but larger optima can be found with very low H2 faradic efficiency. Eliminating carbonate crossover strategies require more energy than downstream gas separation if they increase the cell potential by X0.2 V. However, when considering CAPEX, the break-even voltage increases to -0.4 to 0.8 V for electricity prices ranging from 6c/kWh to 1.5c/kWh. These findings highlight the importance of maintaining near-optimal electrolyzer performance over reducing or eliminating downstream gas separations.