Article
Green & Sustainable Science & Technology
Joohwa Lee, Haryn Park, Seokwon Yun, Jin-Kuk Kim
Summary: Efforts have been made to integrate absorption-based CO2 capture technologies with hydrogen production, but there is limited understanding on implementing CO2 capture for blue hydrogen processes under retrofit scenarios. This study models a capture-integrated hydrogen plant and evaluates technical feasibility and economic impact. Three retrofit strategies for CO2 capture are established, and the most cost-effective strategy is capturing CO2 from PSA inlet gas with excess energy from the hydrogen plant.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
C. Ortiz, S. Garcia-Luna, A. Carro, R. Chacartegui, L. Perez-Maqueda
Summary: This paper provides a review of negative carbon capture technologies and proposes an innovative negative emissions power plant that combines biomass, photovoltaic, and concentrated solar power to generate and store energy while capturing and recovering CO2. The plant features large-scale energy production with negative CO2 emissions, 100% renewable system, synergistic integration of processes and systems, recovery of O2 through photovoltaic-driven electrolysis, and solar-driven lime-stone calcination. The detailed model of the plant evaluates the integration and the base case results demonstrate successful capture of CO2 emissions and production of green methane.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Suzanne T. Thomas, Yongsoon Shin, James J. La Clair, Joseph P. Noel
Summary: The natural carbon cycle on Earth has not been able to adequately absorb the excess CO2 emissions from human activities, leading to rising CO2 levels. A strategy to mine atmospheric carbon and transform it into valuable commercial materials has been proposed as a solution to mitigate CO2 emissions and create economic benefits.
Article
Thermodynamics
Xiao Wu, Han Xi, Yuning Ren, Kwang Y. Lee
Summary: Efficient and clean use of blast furnace gas (BFG) through combined-cycle gas turbine (CCGT) power plant, integrated with carbon capture, provides a feasible pathway for near-term CO2 reduction. Effective control strategies have been developed to coordinate the operation of BFG-fired CCGT plant and solvent-based post-combustion CO2 capture process, improving power ramping performance of the CCGT with little degradation on the PCC operation, thus supporting the reliability of the power system with increasing penetration of renewable energy resources.
Article
Thermodynamics
Hasan Ozcan, Erhan Kayabasi
Summary: This study examines the feasibility of producing synthetic fuel using medium temperature waste heat from an iron-steel facility through a regenerative Kalina cycle system and a carbon capture plant. Results show that under optimal conditions, the plant can achieve a fuel production efficiency of up to 19% with a relatively low cost.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Multidisciplinary Sciences
Marius Sandru, Eugenia M. Sandru, Wade F. Ingram, Jing Deng, Per M. Stenstad, Liyuan Deng, Richard J. Spontak
Summary: This study introduces a hybrid-integrated membrane strategy that combines improved permeability and selectivity for carbon dioxide separation. The membrane is chemically functionalized to enhance CO2 transport, and the method of fabrication is cost-effective and scalable. This research has great potential for practical applications in mitigating global climate change.
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
Engineering, Chemical
Cristina Antonini, Jose-Francisco Perez-Calvo, Mijndert van der Spek, Marco Mazzotti
Summary: This study optimized the design of a methyl diethanolamine CO2 capture unit for clean hydrogen production via steam methane reforming of natural gas. The modified version of the standard MDEA-based CO2 capture process flowsheet was proposed, and the operating conditions were optimized to minimize energy consumption while maximizing the CO2 capture rate. The CO2 capture plant was modeled using an equilibrium-based approach, and the validation of optimization results and verification of absorber and desorber dimensions were conducted.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Chemistry, Applied
Mogahid Osman, Mohammed N. Khan, Abdelghafour Zaabout, Schalk Cloete, Shahriar Amini
Summary: Pressurized operation plays a crucial role in chemical looping systems and has been studied extensively. The impact of pressure on reaction kinetics is less significant than previously believed. Further research is needed to determine the most effective reactor configurations and techno-economic assessments for pressurized chemical looping processes.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Thermodynamics
Reza Shirmohammadi, Alireza Aslani, Roghayeh Ghasempour, Luis M. Romeo, Fontina Petrakopoulou
Summary: Utilizing industrial surplus heat for CO2 liquefaction can reduce carbon emissions, improve energy utilization efficiency, and have positive impacts on both industry and society. Analyzing the developed CO2 liquefaction system through energy, exergy, economic, and exergoeconomic analyses can evaluate its technical and economic benefits.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Environmental
Panagiotis Alexandros Argyris, Andrew Wright, Omid Taheri Qazvini, Vincenzo Spallina
Summary: The study focused on designing a fully integrated system for small scale hydrogen generation with 100% purity of H2 and pure CO2 production. By using a rapid cycle 8-bed configuration, the H2 recovery was increased and the tail gas buffer tank volume requirement was reduced. The impact of PSA dynamic tail gas composition on the process continuity and plant performance was found to be minimal.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Yagmur Nalbant Atak, C. Ozgur Colpan, Adolfo Iulianelli
Summary: Currently, most of the world's hydrogen production relies on the steam reforming of natural gas, which has some disadvantages. To overcome these issues, membrane reactors have been introduced as a new method that can generate and separate hydrogen in the same unit, while operating under milder conditions. This technology has great potential in the field of hydrogen production and decarbonization.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Engineering, Chemical
Shuzhuang Sun, Yingrui Zhang, Chunchun Li, Yuanyuan Wang, Chen Zhang, Xiaotong Zhao, Hongman Sun, Chunfei Wu
Summary: Integrated CO2 capture and utilisation via dry reforming of methane (ICCU-DRM) is a promising route for directly capturing and converting CO2 from various sources. However, the influence of realistic flue gas conditions on ICCU-DRM remains unknown and challenging. This study investigates the influence of water and oxygen in power plant flue gas on the performance of ICCU-DRM using Ni10-CaO dual functional material (DFM). The results provide insights for future investigation and deployment of this integrated process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Chen-Yen Tsai, Chin-Hung Liao, Mei-Ling Lin, Chia-Her Lin
Summary: The objective of this research is to create monolithic heterogeneous catalysts (cordierite@MOFs) through the application of metal-organic framework (MOF) materials onto honeycomb cordierite for CO2 cycloaddition. By employing monolithic catalysts instead of powdered catalysts, the recycling and reusability of catalysts during post-reaction treatment can be significantly improved. The cordierite@ZIF-67 catalyst, known for its high activity, stability, and easy recyclability, offers significant advantages in terms of practicality and efficiency. It not only improves the overall efficiency of the catalytic process but also contributes to the sustainability and environmental friendliness of the production process by minimizing waste and resource consumption.
INORGANIC CHEMISTRY
(2023)
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
Energy & Fuels
Shitong Fang, Houfan Du, Tao Yan, Keyu Chen, Zhiyuan Li, Xiaoqing Ma, Zhihui Lai, Shengxi Zhou
Summary: This paper proposes a new type of nonlinear VIV energy harvester (ANVEH) that compensates for the decrease in peak energy output at low wind speeds by introducing an auxiliary structure. Theoretical and experimental results show that ANVEH performs better than traditional nonlinear VIV energy harvesters under various system parameter variations.
Article
Energy & Fuels
Wei Jiang, Shuo Zhang, Teng Wang, Yufei Zhang, Aimin Sha, Jingjing Xiao, Dongdong Yuan
Summary: A standardized method was developed to evaluate the availability of solar energy resources in road areas, which combined the Analytic Hierarchy Process (AHP) and the Geographic Information System (GIS). By analyzing critical factors and using a multi-indicator evaluation method, the method accurately evaluated the utilization of solar energy resources and guided the optimal location selection for road photovoltaic (PV) projects. The results provided guidance for the application of road PV projects and site selection for route corridors worldwide, promoting the integration of transportation and energy.
Article
Energy & Fuels
Chang Liu, Jacob A. Wrubel, Elliot Padgett, Guido Bender
Summary: The study investigates the effects of coating defects on the performance of the anode porous transport layer (PTL) in water electrolyzers. The results show that an increasing fraction of uncoated regions on the PTL leads to decreased cell performance, with continuous uncoated regions having a more severe impact compared to multiple thin uncoated strips.
Article
Energy & Fuels
Marcos Tostado-Veliz, Xiaolong Jin, Rohit Bhakar, Francisco Jurado
Summary: In this paper, a coordinated charging price mechanism for clusters of parking lots is proposed. The research shows that enabling vehicle-to-grid characteristics can bring significant economic benefits for users and the cluster coordinator, and vehicle-to-grid impacts noticeably on the risk-averse character of the uncertainty-aware strategies. The developed pricing mechanism can reduce the cost for users, avoiding to directly translate the energy cost to charging points.
Article
Energy & Fuels
Duan Kang
Summary: Building an energy superpower is a key strategy for China and a long-term goal for other countries. This study proposes an evaluation system and index for measuring energy superpower, and finds that China has significantly improved its ranking over the past 21 years, surpassing other countries.
Article
Energy & Fuels
Fucheng Deng, Yifei Wang, Xiaosen Li, Gang Li, Yi Wang, Bin Huang
Summary: This study investigated the synergistic blockage mechanism of sand and hydrate in gravel filling layer and the evolution of permeability in the layer. Experimental models and modified permeability models were established to analyze the effects of sand particles and hydrate formation on permeability. The study provided valuable insights for the safe and efficient exploitation of hydrate reservoirs.
Article
Energy & Fuels
Hao Wang, Xiwen Chen, Natan Vital, Edward Duffy, Abolfazl Razi
Summary: This study proposes a HVAC energy optimization model based on deep reinforcement learning algorithm. It achieves 37% energy savings and ensures thermal comfort for open office buildings. The model has a low complexity, uses a few controllable factors, and has a short training time with good generalizability.
Article
Energy & Fuels
Moyue Cong, Yongzhuo Gao, Weidong Wang, Long He, Xiwang Mao, Yi Long, Wei Dong
Summary: This study introduces a multi-strategy ultra-wideband energy harvesting device that achieves high power output without the need for external power input. By utilizing asymmetry, stagger array, magnetic coupling, and nonlinearity strategies, the device maintains a stable output voltage and high power density output at non-resonant frequencies. Temperature and humidity monitoring are performed using Bluetooth sensors to adaptively assess the device.
Article
Energy & Fuels
Tianshu Dong, Xiudong Duan, Yuanyuan Huang, Danji Huang, Yingdong Luo, Ziyu Liu, Xiaomeng Ai, Jiakun Fang, Chaolong Song
Summary: Electrochemical water splitting is crucial for hydrogen production, and improving the hydrogen separation rate from the electrode is essential for enhancing water electrolyzer performance. However, issues such as air bubble adhesion to the electrode plate hinder the process. Therefore, a methodology to investigate the two-phase flow within the electrolyzer is in high demand. This study proposes using a microfluidic system as a simulator for the electrolyzer and optimizing the two-phase flow by manipulating the micro-structure of the flow.
Article
Energy & Fuels
Shuo Han, Yifan Yuan, Mengjiao He, Ziwen Zhao, Beibei Xu, Diyi Chen, Jakub Jurasz
Summary: Giving full play to the flexibility of hydropower and integrating more variable renewable energy is of great significance for accelerating the transformation of China's power energy system. This study proposes a novel day-ahead scheduling model that considers the flexibility limited by irregular vibration zones (VZs) and the probability of flexibility shortage in a hydropower-variable renewable energy hybrid generation system. The model is applied to a real hydropower station and effectively improves the flexibility supply capacity of hydropower, especially during heavy load demand in flood season.
Article
Energy & Fuels
Zhen Wang, Kangqi Fan, Shizhong Zhao, Shuxin Wu, Xuan Zhang, Kangjia Zhai, Zhiqi Li, Hua He
Summary: This study developed a high-performance rotary energy harvester (AI-REH) inspired by archery, which efficiently accumulates and releases ultralow-frequency vibration energy. By utilizing a magnetic coupling strategy and an accumulator spring, the AI-REH achieves significantly accelerated rotor speeds and enhanced electric outputs.
Article
Energy & Fuels
Yi Yang, Qianyi Xing, Kang Wang, Caihong Li, Jianzhou Wang, Xiaojia Huang
Summary: In this study, a novel hybrid Quantile Regression (QR) model is proposed for Probabilistic Load Forecasting (PLF). The model integrates causal dilated convolution, residual connection, and Bidirectional Long Short-Term Memory (BiLSTM) for multi-scale feature extraction. In addition, a Combined Probabilistic Load Forecasting System (CPLFS) is proposed to overcome the inherent flaws of relying on a single model. Simulation results show that the hybrid QR outperforms traditional models and CPLFS exceeds the best benchmarks in terms of prediction accuracy and stability.
Article
Energy & Fuels
Wen-Jiang Zou, Young-Bae Kim, Seunghun Jung
Summary: This paper proposes a dynamic prediction model for capacity fade in vanadium redox flow batteries (VRFBs). The model accurately predicts changes in electrolyte volume and capacity fade, enhancing the competitiveness of VRFBs in energy storage applications.
Article
Energy & Fuels
Yuechao Ma, Shengtie Wang, Guangchen Liu, Guizhen Tian, Jianwei Zhang, Ruiming Liu
Summary: This paper focuses on the balance of state of charge (SOC) among multiple battery energy storage units (MBESUs) and bus voltage balance in an islanded bipolar DC microgrid. A SOC automatic balancing strategy is proposed considering the energy flow relationship and utilizing the adaptive virtual resistance algorithm. The simulation results demonstrate the effectiveness of the proposed strategy in achieving SOC balancing and decreasing bus voltage unbalance.
Article
Energy & Fuels
Raad Z. Homod, Basil Sh. Munahi, Hayder Ibrahim Mohammed, Musatafa Abbas Abbood Albadr, Aissa Abderrahmane, Jasim M. Mahdi, Mohamed Bechir Ben Hamida, Bilal Naji Alhasnawi, A. S. Albahri, Hussein Togun, Umar F. Alqsair, Zaher Mundher Yaseen
Summary: In this study, the control problem of the multiple-boiler system (MBS) is formulated as a dynamic Markov decision process and a deep clustering reinforcement learning approach is applied to obtain the optimal control policy. The proposed strategy, based on bang-bang action, shows superior response and achieves more than 32% energy saving compared to conventional fixed parameter controllers under dynamic indoor/outdoor actual conditions.