Article
Thermodynamics
Syed Saqline, Zhen Yee Chua, Wen Liu
Summary: Chemical looping combustion is a cost-competitive solution for producing low carbon electricity. By conducting process modeling studies, this research investigated the coupling of chemical looping combustion with advanced steam-based power cycles, finding in situ gasification chemical looping combustion to have the highest efficiency. Energy efficiency penalties for capturing CO2 are relatively low compared to power plants without carbon capture.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Energy & Fuels
Giovanny S. de Oliveira, Ciro E. S. Lobo, Carlos E. A. Padilha, Domingos F. S. Souza, Juan A. C. Ruiz
Summary: Brazil aims to reduce its CO2 emissions by utilizing glycerin in Chemical Looping Combustion (CLC). The study evaluates the feasibility of using glycerin in CLC and finds that the addition of ethanol improves combustion efficiency, while the addition of methanol reduces efficiency.
Article
Thermodynamics
Fatih Gulec, Jude A. Okolie, Ahmet Erdogan
Summary: Oil refineries contribute 4-6% of global CO2 emissions, mainly due to the FCC unit's regenerator. Chemical looping combustion (CLC) is a promising CO2 capture process for FCC units, but its economic feasibility has not been studied. This research presents the first techno-economic feasibility analysis of a CLC-FCC unit, demonstrating lower energy penalties and capture costs compared to conventional CCS technologies.
Review
Energy & Fuels
Jian Chen, Lunbo Duan, Yuxin Ma, Yuxin Jiang, Anqi Huang, Hongyu Zhu, Hongyu Jiao, Mingdi Li, Yanbin Hu, Hui Zhou, Yongqing Xu, Felix Donat, Muhammad Awais Naeem, Oliver Krocher
Summary: CaL-CLC is an efficient and cost-effective CO2 capture technology that uses the heat generated by chemical looping combustion. Many studies have been carried out on the CaL-CLC process, and it is important to summarize recent progress and provide future research directions.
Review
Environmental Sciences
Siddig Abuelgasim, Wenju Wang, Atif Abdalazeez
Summary: Chemical looping combustion (CLC) is a promising CO2 capture technology that utilizes metal particles to transport oxygen and avoid nitrogen in combustion exhaust. Oxygen carrier is a key parameter in CLC, and tests have shown its feasibility worldwide.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
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.
Article
Engineering, Environmental
Binlin Dou, Kai Wu, Hua Zhang, Bingbing Chen, Haisheng Chen, Yujie Xu
Summary: In this study, a sorption-enhanced chemical looping steam reforming process for glycerol was proposed to achieve simultaneous CO2 capture and conversion, resulting in the generation of high purity hydrogen and syngas. The results demonstrated that the use of appropriate catalysts and sorbents can effectively generate hydrogen and reduce CO2 emissions in an integrated process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Sonu Kumar, Pinak Mohapatra, Rushikesh K. Joshi, Matthew Warburton, Liang-Shih Fan
Summary: We propose a new low-temperature chemical looping combustion scheme for natural gas conversion into CO2 and NOx purification. The process utilizes NiO/ZrO2 as the oxygen carrier and operates at temperatures close to the flue gas temperature of 400-500 degrees C. Thermodynamic studies show that the presence of CO2 does not significantly affect NOx purification performance. Comparative analyses indicate improvements in exergy efficiency and effective thermal efficiency compared to conventional NOx selective catalytic reduction (SCR) processes.
Article
Green & Sustainable Science & Technology
Lingchen Liu, Huiju Cao, Dong Xiang, Yingying Xia, Peng Li, Zisheng Zhou
Summary: Inferior petroleum coke is suitable for power generation due to its high calorific value. This paper compares the performance of petroleum coke chemical looping combustion (CLC) and oxy-combustion (OCB) processes to address the environmental impact of petroleum coke combustion. The results show that both CLC and OCB have a CO2 capture rate of approximately 100%. The net electrical efficiencies of CLC and OCB at a petroleum coke conversion rate of 70% are 28.61% and 24.68%, respectively. Therefore, improving the conversion rate of CLC and integrating it with advanced steam cycles is important for clean and efficient utilization of inferior petroleum coke.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Eyad Smadi, Mehdi Jafarian, Bassam Dally, Graham J. Nathan
Summary: A process for carbon capture from limestone calcination in a steam atmosphere generated by hydrogen and oxygen combustion has been developed. This process allows for carbon dioxide capture by condensing steam from exhaust gases, eliminating the energy-intensive step of carbon dioxide separation. A techno-economic analysis shows that cost parity can be achieved once the price of hydrogen reaches a certain range.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Chemical
Birgitta Narindri Rara Winayu, Ting-Ke Tseng, Hsin Chu
Summary: Given the worsening global warming, developing efficient strategies for carbon capture is crucial. The chemical looping process (CLP) is a promising method applicable to various carbon capture strategies. This review discusses the application of CLP in different types of carbon capture strategies, including pre-combustion, post-combustion, and oxy-fuel combustion strategies. Despite the limitations posed by factors such as cost and energy demand, the study also analyzes the potential for CLP utilization.
Article
Engineering, Chemical
Robert T. Symonds, Dennis Y. Lu, Arturo Macchi, Robin W. Hughes, Edward J. Anthony
Summary: Calcium looping is a feasible CO2 capture technology, but chlorine in fuels can impact the performance of calcium-based sorbents. Experimental results showed that the presence of HCl can increase sorbent reactivity towards CO2 and decrease CO2 diffusional resistance by changing particle morphology during carbonation using Canadian limestone. Additionally, full sorbent dechlorination can be achieved under typical oxy-fuel calcination conditions, with over 99% HCl capture without affecting sorbent CO2 capture performance when steam is present during both carbonation and calcination.
CHEMICAL ENGINEERING SCIENCE
(2021)
Review
Environmental Sciences
Hayder A. Alalwan, Alaa H. Alminshid
Summary: This report discusses recent advancements in CO2 capturing methods, with a focus on chemical looping combustion (CLC) as a promising technology. CLC is highlighted for its ability to reduce the cost of CO2 separation and concentrate the captured CO2, making it a feasible option for carbon capture.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Thermodynamics
Xudong Wang, Yali Shao, Baosheng Jin
Summary: By combining various chemical looping technologies, high-efficiency power production and CO2 separation can be achieved. Modeling and simulation under fundamental conditions, followed by thermodynamic evaluations under different conditions, ultimately led to the establishment of a neural network model for predicting power output.
Article
Thermodynamics
Agnieszka Korus, Adam Klimanek, Slawomir Sladek, Andrzej Szlek, Airy Tilland, Stephane Bertholin, Nils Erland L. Haugen
Summary: The process of petcoke conversion in chemical looping combustion technology requires detailed knowledge about the reactions with O-2, CO2, and H2O. Experimental results showed that the reaction with CO2 was slow, and kinetic parameters of petcoke gasification were determined by applying different models to the data obtained from a custom test rig.
Article
Thermodynamics
Jouni Ritvanen, Kari Myohanen, Antti Pitkaoja, Timo Hyppa
Summary: Sorption enhanced gasification is a promising technology for producing gas from renewable feedstock, and research has shown that optimal producer gas composition can be achieved under specific conditions. The developed model prediction matches experimental data and can be used for exploring new control strategies.
Article
Engineering, Environmental
Jouni Ritvanen, Yegor Chechurin, Timo Hyppanen
Summary: This study introduces a practical characterization method and modeling tool for gas-solid flows, deriving phase interaction for specific solid material and providing physical predictions for both stationary and transient gas-solid flow simulations.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Jouni Havukainen, Ali Saud, Thomas Fruergaard Astrup, Petteri Peltola, Mika Horttanainen
Summary: With the trend of urbanization, the importance of sewage and sludge treatment is increasing. The method of treatment and utilization of digestate has a significant impact on environmental performance, with combustion and composting showing more advantages over pyrolysis. However, further development and assessment are needed for the pyrolysis technology.
Article
Energy & Fuels
Petteri Peltola, Falah Alobaid, Tero Tynjaelae, Jouni Ritvanen
Summary: This article provides a brief review of the modeling of chemical looping combustion (CLC), a next-generation CO2 capture technology, in bubbling and circulating fluidized bed reactors. The article presents a summary of published mathematical reactor models, with a focus on a macroscopic modeling approach that combines transport equations with semiempirical correlations to describe key fluidized bed phenomena. The article highlights important aspects to be considered in the modeling of CLC in a dual fluidized bed reactor system and identifies research needs. So far, semiempirical reactor models have been validated based on experimental results, but there is limited research on dynamic process simulation of CLC.
Review
Energy & Fuels
Mehar Ullah, Daniel Gutierrez-Rojas, Eero Inkeri, Tero Tynjala, Pedro H. J. Nardelli
Summary: This study provides a systematic analysis of selected research articles on power-to-X (P2X)-related processes. It highlights the importance of transitioning from fossil fuels to renewable energy in order to mitigate greenhouse gas emissions and global warming. The study focuses on the potential of the P2X process chain to convert renewable energy into storable hydrogen, chemicals, and fuels. Additionally, it explores the use of advanced data-driven methods and technologies for efficient operation of P2X-related processes, such as the Internet of Things, big data analytics, and machine learning.
Article
Engineering, Environmental
Petteri Peltola, Lauri Ruottu, Markus Larkimo, Arttu Laasonen, Kari Myohanen
Summary: Sewage sludge, a by-product of wastewater treatment, can be a potential resource for renewable energy and nutrient recovery. However, it contains various toxins and harmful pollutants that can pose hazards to the environment and human health. An advanced treatment technique involving drying and combustion of the sludge has been proposed, which eliminates unwanted organic compounds and produces ash high in nutrients and low in heavy metals for fertilizer production. This technique is self-sufficient in terms of energy and has been successfully implemented in a sludge combustion plant.
Article
Thermodynamics
Antti Pitkaoja, Jouni Ritvanen
Summary: The study investigates the use of H2O staging and cooling in a circulating fluidised bed gasifier to enhance its chemical reactions and allow for direct adjustment of the gasifier's operating parameters, increasing flexibility in tailoring the composition of the producer gas.
Article
Environmental Sciences
Jussi Saari, Petteri Peltola, Katja Kuparinen, Juha Kaikko, Ekaterina Sermyagina, Esa Vakkilainen
Summary: Bioenergy with CO2 capture and storage (BECCS) is a promising technology for negative carbon emissions. A study evaluated an advanced CO2 capture technology, chemical looping with oxygen uncoupling (CLOU), in a large pulp and paper mill. The results showed that CLOU-integrated cogeneration plant had no efficiency penalty and even gained a small efficiency advantage compared to a conventional boiler.
MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE
(2023)
Article
Multidisciplinary Sciences
Markku Nikku, Kari Myohanen, Jouni Ritvanen, Timo Hyppanen
Summary: Transient Eulerian simulations were conducted to evaluate the mixing of a secondary solid phase in a laboratory-scale circulating fluidized bed riser. The simulation data can be used for model development and computation in mixing with simplified models. Multiple simulations were performed with varied parameters, and the results were averaged to obtain average mixing profiles for each secondary solid phase. Details of the modeling, averaging, geometry, materials, and cases can be found in the open-access publication by Nikku et al. (Chem. Eng. Sci. 269, 118503) (C) 2023 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Article
Thermodynamics
Kasra Aliyon, Fatemeh Rajaee, Jouni Ritvanen
Summary: The objective of this study is to develop an artificial intelligence (AI) based approach that predicts the utility consumptions of different absorption-based carbon capture (ACC) process designs. The AI models show an error between 0.4% and 3.6% for predicting the specific reboiler duty, which is crucial for the operational costs of ACC plants. Moreover, the study identifies the influence of each process parameter on energy consumption using explainable artificial intelligence.
Article
Green & Sustainable Science & Technology
Ali Saud, Jouni Havukainen, Petteri Peltola, Mika Horttanainen
Summary: This study investigates the possibility of recovering heat and nutrients from municipal sewage sludge using pyrolysis or combustion with a gas scrubbing technology, producing ammonium sulfate fertilizer from recovered nitrogen and phosphorus. Investment and revenue estimates indicate that combustion and pyrolysis can be cost-effective with potential for generating significant revenue.
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)