Article
Thermodynamics
Seokwon Yun, Sunghoon Lee, Mun-Gi Jang, Jin-Kuk Kim
Summary: This work systematically evaluates the economic implications of introducing absorption and membrane capture technologies to a power plant. Cost diagrams are used to estimate the cost of electricity, CO2 capture, and avoidance cost of CO2 capture-integrated power plant, allowing for fair comparison of different capture technologies. The detailed breakdown of key costing elements between the power plant and the capture plant provides insights for research and development direction.
Article
Environmental Sciences
Qing Ye, Yu Shen, Qi Zhang, Xi Wu, Wangbiao Guo
Summary: A life-cycle assessment was conducted to evaluate the energy conversion characteristics and environmental impacts of flue gas CO2 fixation by microalgae. The results indicate that improving CO2 aeration efficiency and microalgae growth rate are crucial for advancing this technology.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Jianlin Li, Ti Wang, Pei Liu, Zheng Li
Summary: A universal and hybrid post-combustion capture model is proposed in this study, based on first-principle approach and validated using experimental data. The analysis suggests that tower height should be designed in conjunction with flue gas flow, and the gas-liquid ratio can be optimized to reduce reboiler power under a certain capture target.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2022)
Article
Thermodynamics
Fayza Yulia, Rifka Sofianita, Kukuh Prayogo, N. Nasruddin
Summary: This study presents a comprehensive investigation of a CO2 absorption system using MEA solution in a coal fired power plant, aiming to optimize the system by maximizing exergy and minimizing exergoenvironmental impacts. Results indicate that improvements should be made on heat exchangers, regenerators, and absorbers to enhance efficiency and reduce environmental impacts.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Xuelei Zhang, Zhuoyuan Zhang, Gaofeng Wang
Summary: This study proposes a novel combined cycle for CO2 capture from coal-fired power plants, which integrates a supercritical CO2 Brayton cycle and an organic Rankine cycle. The results show promising exergy efficiency and economic performance. The proposed combined cycle has the potential to compete with other carbon capture technologies.
Article
Thermodynamics
Ying Wu, Ying Dai, Weiyi Xie, Haijun Chen, Yuezhao Zhu
Summary: This study conducts a performance analysis on the integration of post-combustion CO2 capture and solar energy in a coal-fired power plant. The results show that the integration of solar energy can significantly improve the electric efficiency and reduce costs. The use of absorption heat pump and absorption heat exchanger enables heat integration among the steam cycle, the CO2 capture process, and the solar energy system.
Article
Green & Sustainable Science & Technology
Beibei Dong, Changzheng Hu, Jan Skvaril, Eva Thorin, Hailong Li
Summary: This paper compares the performance of three commonly used dynamic modeling approaches for CO2 capture, and finds that the DwC approach can achieve higher CO2 capture rate in dynamic environments. The research results provide recommendations for different types of simulation purposes, which helps optimize the operation of CO2 capture.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Thermodynamics
Soheil Khosravi, Siamak Hossainpour, Hossein Farajollahi, Nemat Abolzadeh
Summary: In this study, a CaL-CSP system was modeled to integrate with a 500 MW coal-fired power plant, utilizing two steam cycles for heat recovery. The system does not impose any thermal efficiency drop on the power plant and its economic performance is competitive with other CO2 capture technologies.
Article
Thermodynamics
Lingjie Feng, Rongrong Zhai, Yingxin Zhao, Zhihan Qian, Qing Wei
Summary: In this paper, an improved CO2 capture system based on MEA is proposed, which is combined with a membrane condenser and an integrated decarbonization system. Compared to the simple integration scheme, the improved integrated system achieves higher output power, thermal efficiency, and exergy efficiency, while saving cooling water.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Lingjie Feng, Rongrong Zhai, Yicun Guo
Summary: This paper analyzes the water consumption of a coal-fired power plant integrated with a CO2 capture system. The results show that the integration system has the highest thermal efficiency when the output power is constant and the carbon capture rate is constant.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Thermodynamics
Liheng Guo, Yudong Ding, Qiang Liao, Xun Zhu, Hong Wang
Summary: A new heat supply strategy for the CO2 capture process was proposed and evaluated, showing the effectiveness of utilizing internal heat exchangers to enhance the performance of a two-stage heat pump. Lowering the CO2 desorption temperature can significantly improve the COP of the heat pump system and overall thermodynamic performance.
Article
Thermodynamics
Hui Yan, Daotong Chong, Zhu Wang, Ming Liu, Yongliang Zhao, Junjie Yan
Summary: A revised control strategy for a solar-aided coal-fired power plant is proposed to enhance energy conversion and stability. Experimental results show that the strategy improves power stability and reduces energy fluctuations.
Article
Chemistry, Physical
R. Cooper, D. Bove, E. Audasso, M. C. Ferrari, B. Bosio
Summary: This study explores the use of a Molten Carbonate Fuel Cell (MCFC) system for power generation and CO2 concentration in an existing production plant, showcasing its potential as a low energy carbon capture method. The technical feasibility analysis showed that the specific energy requirement of the MCFC system is significantly lower than conventional MEA capture processes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Boeun Kim, Jae-Goo Lee, Joungho Park, Hyojin Lee, Kyung Hwan Ryu
Summary: In line with global efforts to reduce emissions, the integration of coal-fired power generation plants with carbon capture technologies has been investigated. This study presents a comparative assessment of post-combustion CO2 capture and oxy-combustion retrofitted to a low-rank coal-based power plant from the viewpoints of economics and sustainability. The results show that oxy-combustion is more economically and environmentally attractive than post-combustion CO2 capture for low-rank coal-based power plants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Thermodynamics
Tiancheng Ouyang, Shutao Xie, Mingming Pan, Peijia Qin
Summary: This paper proposes a peak-shaving scheme for coal-fired power plants that integrates flexible carbon capture and wastewater treatment to control pollutant emissions. The optimal parameters of the system are determined through simulation and analysis, and a detailed thermodynamic and economic analysis is carried out.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Feifei Shen, Liang Zhao, Meihong Wang, Wenli Du, Feng Qian
Summary: The paper proposes a data-driven adaptive robust industrial multi-type energy systems optimization framework by integrating robust optimization and machine learning methods, which improves the efficiency of energy systems in the face of uncertainties. The framework captures the demand uncertainty of the actual process using industrial data and constructs uncertain parameter set and uncertainty set using historical data, achieving the optimization of energy systems.
Article
Engineering, Environmental
Ariane D. N. Kamkeng, Meihong Wang
Summary: Solid oxide electrolysis cells (SOECs) are a promising technology for CO2 and H2O co-electrolysis into syngas. A 1D pseudo-dynamic model was developed to study the degradation mechanisms and optimize long-term operation. The model was validated for different current densities and revealed that increasing current density and operating temperature initially enhance performance, but lead to higher degradation rates and decreased syngas production efficiency in the long term.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Yuxing Ding, Olumide Olumayegun, Yue Chai, Yurong Liu, Meihong Wang
Summary: This study proposed a novel combined cooling, heating and power system that improves the round-trip efficiency of the compressed air energy storage (CAES) system. Through the recovery of waste heat and the provision of cooling capacity, the proposed system showed higher electrical energy output and improved efficiency compared to commercially deployed CAES systems.
Review
Energy & Fuels
Toluleke E. Akinola, Phebe L. Bonilla Prado, Meihong Wang
Summary: This paper provides a state-of-the-art review of adsorption-based post-combustion carbon capture technology. The lack of commercial deployment is mainly due to the challenges in adsorbent material performance. Molecular simulation and process modeling are effective methods for evaluating adsorbent performance and reducing capture costs.
Article
Energy & Fuels
Qihao Wang, Cheng Zheng, Xiao Wu, Meihong Wang
Summary: Solvent-based CO2 capture is a promising technology for decarbonization of energy and industrial sectors. However, the accurate real-time measurement of key parameters such as CO2 concentration and solvent loading is still challenging. This paper presents an intelligent model-based robust soft sensor to monitor these key operating parameters using a Long Short-Term Memory (LSTM) Network based surrogate model and a moving horizon estimator. Simulation results show the effectiveness of this monitoring method in accurately estimating the parameters even in the presence of noise and measurement faults.
Editorial Material
Energy & Fuels
Kangkang Li, Shuiping Yan, Hanming Liu, Molly Li, Meihong Wang
FRONTIERS IN ENERGY RESEARCH
(2022)
Editorial Material
Energy & Fuels
Feng Qian, David Bogle, Meihong Wang, Stratos Pistikopoulos, Jinyue Yan
Article
Energy & Fuels
Yue Chai, Nicholas Packham, Meihong Wang
Summary: This paper analyzes the potential of combining the pyrolysis/gasification process with carbon capture and utilization (CCU) and investigates how to improve the process through process simulation. The results show that applying CCU can inhibit the production of H-2 and CO(2), but promote the production of CO. By adjusting the operating conditions and adding solid carbon, H-2 production can be protected and CO2 conversion can be improved.
Article
Agricultural Engineering
Fahima A. Al-Balushi, Kiran G. Burra, Yue Chai, Meihong Wang
Summary: Thermal processing of waste tyre and biomass through pyrolysis and gasification provides a promising solution to address energy security, waste management, and environmental sustainability issues. The kinetics analysis of the thermal decomposition of the waste tyre and biomass blend is crucial to understand their further reactions and optimize their use. The study found that the heating rate affects the thermogravimetry curves and the interaction between waste tyre and biomass varies with the blend ratio.
BIOMASS & BIOENERGY
(2023)
Article
Energy & Fuels
Guihua Hu, Xiaoxu Li, Xiaoyan Liu, Jun Hu, Olajide Otitoju, Meihong Wang, Wenli Du, Zhencheng Ye, Jian Long, Feng Qian
Summary: This study investigates methods to reduce CO2 emissions in ethylene production plants by capturing CO2 through chemical absorption with monoethanolamine (MEA) solvent. The operation of a thermal cracking furnace was simulated using computational fluid dynamics (CFD), and a carbon capture plant model was developed using Aspen Plus (R). The results show that utilizing excess heat from the gasoline fractionator can provide heat for the carbon capture plant, reducing capture costs.
Article
Green & Sustainable Science & Technology
Peizhi Liao, Xiao Wu, Meihong Wang, Zhongmei Li, Feng Qian
Summary: This paper develops an extended state observer based stable model predictive control method for coal-fired power plant integrated with post-combustion carbon capture system. The proposed controller utilizes an extended state observer to accurately estimate system changes and unknown disturbances, allowing for active disturbance rejection and improved control performance. Simulation results show that the presented ESOSMPC is able to achieve robust control in a multi-disturbance situation and flexible operation under varying load conditions.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Green & Sustainable Science & Technology
Yurong Liu, Minglei Yang, Yuxing Ding, Meihong Wang, Feng Qian
Summary: This study optimizes a low-grade heat recovery model for petrochemical plants by integrating the organic Rankine cycle (ORC) with heat exchanger network (HEN). The steady-state model is developed, and the ORC operation conditions are optimized. The thermodynamics and economic analysis show improved system performance with increased heat recovery, higher exergy efficiency, and reduced annual cost.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Zheyi Sun, Bin Shao, Yun Zhang, Zihao Gao, Meihong Wang, Honglai Liu, Jun Hu
Summary: The development of dual functional adsorbent||catalyst hybrids enables efficient CO2 capture and methanation at intermediate temperature. The modulated packing configurations can adjust the selectivity between CH4 and CO.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Energy & Fuels
Olajide Otitoju, Eni Oko, Meihong Wang
Summary: This paper provides detailed technical and economic assessments of a large-scale rotating packed bed (RPB) absorber operated with concentrated monoethanoamine (MEA). The results show that using 55 wt% MEA can achieve a volume reduction factor of 4-11 compared to packed bed (PB) absorbers, and the highest volume reduction factors of 5-13 times were achieved in RPB absorber operated with 75 wt% MEA. Economic assessments also indicate lower capital expenditures and CO2 capture cost for RPB absorbers.
Editorial Material
Engineering, Chemical
Jie Zhang, Meihong Wang
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.
