Review
Energy & Fuels
Guicai Liu, Grzegorz Lisak
Summary: This review summarizes the basic properties and opportunities of Cu-based OCs in various chemical looping processes. It covers the applications of Cu-based OCs in chemical looping combustion (CLC), chemical looping oxygen uncoupling (CLOU), chemical looping air separation (CLAS), chemical looping for syngas/H2 production, integrated CaO/CuO looping process, and thermochemical energy storage (TCES). The review also discusses the technical challenges and current strategies related to agglomeration, attrition, and ash accumulation. It provides insights and guidance for the design and development of Cu-based OCs and their applications in chemical looping processes.
Article
Engineering, Environmental
Mingze Su, Haibo Zhao, Xiaoyu Wang
Summary: This study explores the oxygen uncoupling kinetics of CuO oxygen carrier using a multi-scale methodology. The results show that gas diffusion, especially in the sample layer, plays a significant role in the conversion process of CuO samples. Additionally, the physical structure of CuO particles, specifically the grain size, has an important effect on the oxygen uncoupling rate, with an optimal size of 245 nm.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Jinchen Ma, Xin Tian, Haibo Zhao, Jingjing Ma, Chuguang Zheng
Summary: The performance of CuO@TiO2-Al2O3 oxygen carrier in CLOU is affected by coal ash, but it still has stable redox reactivity. The deposition of Ca from coal ash is found on the surface of the OC, but a close-grained ash shell is avoided due to the continuous release of gaseous O2 by CuO. Additionally, stable active phases were detected in both fresh and used samples.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Energy & Fuels
Inaki Adanez-Rubio, Ivan Sampron, Maria Teresa Izquierdo, Alberto Abad, Pilar Gayan, Juan Adanez
Summary: This study investigates the combustion and CO2 capture efficiency of coal and biomass using a magnetic Cu-based oxygen carrier. The results show that complete combustion of the fuel to CO2 and H2O can be achieved, with CO2 capture efficiency reaching up to 97% at the appropriate temperature.
Article
Chemistry, Applied
M. T. Izquierdo, F. Garcia-Labiano, A. Abad, A. Cabello, P. Gayan, L. F. de Diego, J. Adanez
Summary: This study evaluated the stability of a CuO/Al2O3 impregnated oxygen carrier during methane chemical looping combustion at high oxygen carrier to fuel ratios. The research found that low oxygen carrier conversion variation reduced copper loss from particles, but reoxidizing the oxygen carrier at high temperatures was difficult due to the formation of CuAlO2. Operating at temperatures around 800 degrees C with low solid conversion variation is recommended to limit copper loss while maintaining physical stability.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Energy & Fuels
Xiangyu Li, Zhiqing Wang, Yangang Mei, Ru Feng, Zheyu Liu, Jiejie Huang, Libo Dong, Yitian Fang
Summary: Sodium silicate solution derived from alumina-extracted residue of coal ash can be used to fabricate mesoporous silica foam, which can load a high percentage of amine polymers and achieve a high CO2 adsorption capacity. This material shows potential for post-combustion CO2 capture from power plant flue gas.
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
Engineering, Chemical
Dawei Wang, Anuj Joshi, Liang-Shih Fan
Summary: Chemical looping is a process that uses chemical intermediates to decompose a reaction into multiple sub-reaction steps. Calcium looping and redox looping are two applications of chemical looping, with the former being commercially demonstrated and the latter yet to be realized sustainably. With increasing concerns about climate change, efforts to develop redox looping as a promising fossil energy conversion technology with CO2 emission control have been invigorated. Metal oxide reaction engineering and particle science and technology are crucial technical areas to advance the industrial practice of chemical looping.
Article
Chemistry, Applied
Jinze Dai, Kevin J. Whitty
Summary: In this study, the energy balance of a CuO-based CLC system firing various solid fuels was investigated, and a thermodynamic model was established. The results showed that the temperature difference between the FR and AR is not very sensitive to the heating value of the fuel, while factors such as CuO loading, support material heat capacity, and fluidizing gas flow rate have significant impacts.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jiawei Hu, Hilde Poelman, Stavros-Alexandros Theofanidis, Jonas J. Joos, Christophe Detavernier, Dirk Poelman, Wei Wei, Vladimir V. Galvita
Summary: CCLHGD is a new hot gas desulfurization method that utilizes alternating sulfuration and regeneration processes to remove H2S. Fe2O3 is gradually converted into iron sulfides by H2S, and it can be fully regenerated to iron oxides by CO2. This work provides an efficient chemical looping scheme for H2S removal and offers new opportunities for hot gas desulfurization.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Xueyan Sun, Liangliang Zhu, Wei Zhao, Feng Li, Xi Chen
Summary: In this study, a chemical looping scheme was developed to efficiently reduce impure CO2 containing O-2 impurities into high value-added substances. The synergistic effect of Ni and Fe played a key role in achieving high conversion and yield. This work presents a promising approach for direct utilization of impure CO2 and achieving carbon-neutral economic development.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Guicai Liu, Chia Chyi Chang, Ya Zhao, Andrei Veksha, Apostolos Giannis, Teik Thye Lim, Grzegorz Lisak
Summary: The influence of alkali earth metals (AEMs) doping on CuO/Al2O3 oxygen carrier in chemical looping combustion (CLC) was investigated. The doping of AEMs enhanced the performance and stability of the oxygen carrier, and deferred the agglomeration. The improved performance was attributed to the enhanced redox kinetics and the migration of AEM species during the synthesis process.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Sanaz Daneshmand-Jahromi, Davood Karami, Nader Mahinpey
Summary: This research investigates the effect of different aerogel supports on the stability of copper oxide during chemical looping combustion (CLC) and finds that zirconia aerogel support plays a significant role in improving the activity of oxygen carriers. Proper supports can stabilize Cu dispersion, intensify the redox degree of oxygen carriers at high temperatures, and strengthen the distribution of Cu on the support surface.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Chao Feng, Tao Lin, Rong Zhu, Guangsheng Wei, Kai Dong
Summary: With the progress of industrial development, global CO2 emissions have increased exponentially. The iron and steel industry, although important for economic development, has high CO2 emission intensity. Therefore, reducing CO2 emissions in the iron and steel industry will have a significant impact on overall emission reduction. This study analyzes the influence of oxygen-enriched combustion parameters and converter gas conditions on CO2 concentration and NOx generation in flue gas, and proposes a combustion scheme suitable for CO2 capture.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Yunlei Zhao, Youyou Li, Bo Jin, Zhiwu Liang
Summary: Chemical looping is a powerful process intensification strategy for integrated CO2 capture and utilization. In this study, a bifunctional Ca-Fe-Mg material derived from LDH was synthesized and used in chemical looping reforming process. The results showed that 900°C was the suitable reforming temperature, and the material exhibited high syngas production and stable H2/CO ratio.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Ellen Roels, Seppe Terryn, Fumiya Iida, Anton W. Bosman, Sophie Norvez, Frank Clemens, Guy Van Assche, Bram Vanderborght, Joost Brancart
Summary: Self-healing soft robots can recover completely from damage and have an extended lifetime, with various techniques used to shape complex structures. Reversible covalent and chemical cross-links provide healing abilities to soft robotic components, addressing current obstacles in soft robotics.
ADVANCED MATERIALS
(2022)
Article
Engineering, Chemical
N. A. Conzelmann, M. N. Partl, F. J. Clemens, C. R. Mueller, L. D. Poulikakos
Summary: This study investigates artificial aggregates of engineered shapes that enable structures with high porosities. Numerical and experimental techniques are employed to analyze packings of various shapes of the artificial aggregates. The study establishes a correlation between the porosity of a packing and the sphericity of the aggregates, and confirms the accurate prediction of permeability for a wide range of porosities using the Carman-Kozeny correlation. The establishment of the basic relationship between porosity and permeability in packings is critical for the design of artificial aggregates for novel applications.
Article
Materials Science, Ceramics
Frank Clemens, Fateme Sarraf, Aurelio Borzi, Antonia Neels, Amir Hadian
Summary: Thermoplastic extrusion based additive manufacturing (MEX-AM) is an interesting method for fabricating large ceramic parts. Three commercial yttria-stabilized zirconia (YSZ) filaments provided by Fabru GmbH, SiCeram GmbH, and PT+A GmbH were investigated. The flexibility and rheological properties of YSZ filaments were found to vary greatly. The Fabru filament exhibited higher flexibility but required significantly higher extrusion pressure to be printed through a 0.25 mm nozzle. In the SiCeram filament, a grain orientation effect was observed. STA analysis suggested that the polymer decomposing at a high temperature in the Fabru filament could be removed by solvent debinding (SD). Finally, the printing and post-processing of YSZ filaments were evaluated using a 70 mm tall cup structure.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Fateme Sarraf, Amir Hadian, Sergey V. Churakov, Frank Clemens
Summary: The low processing temperature of preceramic polymers makes them attractive for additive manufacturing. Mixing ethylene vinyl acetate and polyvinyl alcohol successfully generates open porosity before crosslinking. The melt flow index and vinyl acetate content of the ethylene vinyl acetate affect printability and debinding behavior.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Analytical
David Hardman, Thomas George Thuruthel, Antonia Georgopoulou, Frank Clemens, Fumiya Iida
Summary: This study presents a complete framework for the fabrication of soft sensory fiber networks using 3D printing of piezoresistive elastomers, allowing for contact localization. Machine learning is utilized for contact localization, achieving good accuracy even in the presence of damage and nonlinear material properties. The potential of the networks to function as capacitive sensors is also demonstrated.
Article
Engineering, Manufacturing
Marius A. Wagner, Jona Engel, Amir Hadian, Frank Clemens, Mikel Rodriguez-Arbaizar, Efrain Carreno-Morelli, Jeffrey M. Wheeler, Ralph Spolenak
Summary: Filament extrusion-based additive manufacturing of metals provides a different microstructure compared to beam-based methods. The study shows that optimal microstructure of 316L stainless steel can be achieved through debinding and sintering under specific conditions, resulting in high density and avoiding detrimental hard phases.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Amir Hadian, Maximilian Fricke, Antje Liersch, Frank Clemens
Summary: The aim of this study is to evaluate the suitability of powder injection molding (PIM) binder compositions for the material extrusion (MEX) additive manufacturing of zirconia parts. The study found that only one of the PIM binder compositions could be successfully printed, debound and sintered due to issues such as phase separation, poor printing performance or delamination. Additionally, a commercially available zirconia filament was used for comparison.
ADDITIVE MANUFACTURING
(2022)
Article
Polymer Science
Boripat Sripornsawat, Antonia Georgopoulou, Sarttrawut Tulaphol, Anoma Thitithammawong, Jobish Johns, Yeampon Nakaramontri, Frank Clemens
Summary: This research develops strain sensors based on conductive natural rubber composites filled with carbon nanotubes and conductive carbon black, and achieves an ionic pathway for electron moving through a modified deep eutectic solvent. The use of the solvent improves the electrical signal sensation of the conductive rubber composite and eliminates inconsistent behavior under different loadings.
EXPRESS POLYMER LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Marius A. Wagner, Jose L. Ocana-Pujol, Amir Hadian, Frank Clemens, Ralph Spolenak
Summary: Integrated additive manufacturing of functional NiTi shape memory alloys is demonstrated via 3D printing of filaments consisting of thermoplastic binder and metal powder. The fabricated alloys show superelastic and shape memory properties at room temperature, and their microstructures and thermo-mechanical properties are characterized. Actuator geometries are designed, fabricated, and tested to enlarge the shape memory strain. The use of metallic materials in additive manufacturing could overcome the limitations of poor mechanical properties and durability seen in polymeric materials commonly used in active structures.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Antonia Georgopoulou, Joost Brancart, Seppe Terryn, Anton W. Bosman, Sophie Norvez, Guy Van Assche, Fumiya Iida, Bram Vanderborght, Frank Clemens
Summary: Sensory receptors play a crucial role in biological systems as they allow organisms to perceive and adapt to their environment. Researchers have developed biomimetic sensors to mimic the sensory transduction of organisms, but selectivity and multi-sensing capabilities in soft self-healing sensors (SSHS) are still lacking. This paper discusses the multi-sensing aspect of SSHS, focusing on resistive-based sensors for detecting various stimuli. Inspiration from biological systems' sensory transduction will be key for the further development and application of SSHS in areas such as soft robotics, electronic skin, and haptic devices.
APPLIED MATERIALS TODAY
(2022)
Article
Polymer Science
Antonia Georgopoulou, Sasitorn Srisawadi, Panithi Wiroonpochit, Frank Clemens
Summary: Soft piezoresistive sensing composite made of renewable material natural rubber and acetylene black was developed for monitoring human joint motion. Sensors produced through stereolithography-based method showed successful detection of small strains, while those fabricated by mold casting were not reliable for low strain detection. The homogeneous distribution and monotonic sensor response of the 3D printed sensors provided the ability to withstand large elongations.
Article
Materials Science, Ceramics
Tony Lusiola, Arun Ichangi, Daniel Weil, Tutu Sebastian, Christos Aneziris, Thomas Graule, Frank Clemens
Summary: This study successfully synthesized zirconia nanofibers without sol-gel precursors using low-cost inorganic materials, and improved the stability of nanofiber diameter by adjusting electrospinning parameters. The calcination of different precursors resulted in different crystal phases of the fibers, with a higher tetragonal phase content in those based on nanoparticles. Zirconia nanofibers with polygranular microstructure across the diameter were successfully produced.
Article
Electrochemistry
Diwakar Karuppiah, Dmitrii Komissarenko, Nur Sena Yuezbasi, Yang Liu, Pradeep Vallachira Warriam Sasikumar, Amir Hadian, Thomas Graule, Frank Clemens, Gurdial Blugan
Summary: In this work, a simple two-step thermal treatment process was used to synthesize Ta-doped LLZO discs as solid electrolytes. The process parameters were carefully controlled to achieve nucleation and sintering of LLZO. The prepared Ta-LLZO discs exhibited good crystallinity and electrical conductivity.
Review
Polymer Science
Fateme Sarraf, Sergey V. Churakov, Frank Clemens, Li Ye
Summary: The utilization of preceramic polymers to produce ceramics with exceptional characteristics and the application of additive manufacturing techniques provide new opportunities for manufacturing complex ceramic structures.
Proceedings Paper
Robotics
Antonia Georgopoulou, Louisa Marie Eckey, Somashree Mondal, Frank Clemens
Summary: This study utilizes additive manufacturing to create sensorized soft actuator modules and investigates the impact of Shore hardness and design aspects on gripper structures. The study also finds that grippers with higher Shore hardness have a larger functional range and better controllability.
2022 IEEE 5TH INTERNATIONAL CONFERENCE ON SOFT ROBOTICS (ROBOSOFT)
(2022)
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.