Article
Engineering, Environmental
Lifeng Li, Alireza Rahbari, Mahdiar Taheri, Roelof Pottas, Bo Wang, Morteza Hangi, Leanne Matthews, Lindsey Yue, Jose Zapata, Peter Kreider, Alicia Bayon, Chi-Hwa Wang, Terrence W. Simon, Joe Coventry, Wojciech Lipinski
Summary: The two-step calcium oxide based calcination-carbonation cycle is studied for carbon dioxide capture and solar thermochemical energy storage applications. The performance of an indirectly-irradiated packed-bed solar thermochemical reactor is evaluated experimentally using simulated high-flux solar irradiation. The reactor temperature peaked at 1,035 degrees C and the average solar-to-chemical conversion efficiency ranged from approximately 1.3% to 8.6% for the experimental runs. Improvements in thermomechanical characteristics, reaction chamber seals, and reactor geometry are necessary for the presented reactor design.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Fangjun Wang, Wei Zhou, Shiyi Chen, Lunbo Duan, Wenguo Xiang
Summary: This study investigates the performance of the calcium looping process for biomass hydrogen-rich gasification and carbon dioxide capture. It shows that dolomite as bed material has a more significant improvement in hydrogen production compared to quartz sand. Furthermore, a higher temperature in the riser benefits tar conversion, and an increase in solid circulating flux improves hydrogen concentration and yield while reducing tar content.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
R. Jamei, J. R. McDonough, D. A. Reay, V. Zivkovic
Summary: Carbon capture (CC) technology will be essential in achieving the 2050 Net Zero target in the short to medium term. This study developed a small-scale platform using a 3D-printed toroidal fluidised bed (TORBED) reactor to intensify gas-solid mixing and screened a commercial sorbent for CO2 capture from flue gas streams.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Mohammad Saghafifar, Matthias A. Schnellmann, Stuart A. Scott
Summary: This paper studies the feasibility of using packed bed reactors in chemical looping air separation. By introducing a compressor and turbine, oxidizers can be operated at an elevated pressure and used to produce oxygen for combustion.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Green & Sustainable Science & Technology
Giuseppe Cristian Piso, Piero Bareschino, Paola Brachi, Claudio Tregambi, Giovanna Ruoppolo, Francesco Pepe, Erasmo Mancusi
Summary: In this study, the Chemical Looping Reforming of biogas was proposed and numerically investigated to achieve the clean, efficient, and cost-effective utilization of renewable carbonaceous fuels. The effects of biogas composition and process parameters on the reaction performances were assessed and discussed, including the conversion degree, syngas yield, and syngas composition.
Article
Thermodynamics
Eric Falascino, Rushikesh K. Joshi, Louann Kovach, Lindsay Isom, Andrew Tong, Liang-Shih Fan
Summary: This work explores the advances in OSU's BTS technology for hydrogen production, finding that adjusting residence time and steam injection can improve hydrogen yield and tar content. The application of modularization for process integration can increase efficiency, but decrease syngas purity, while adding low-oxygen feedstocks can increase hydrogen yield.
Article
Energy & Fuels
Kayden Toffolo, Sarah Meunier, Luis Ricardez-Sandoval
Summary: This paper presents a nonlinear model predictive control (NMPC) scheme for chemical-looping combustion (CLC) in a large-scale packed bed reactor. The scheme combines a multiscale model and a pseudo-homogeneous model to achieve precise control of the process.
Article
Green & Sustainable Science & Technology
Edoardo De Lena, Borja Arias, Matteo C. Romano, J. Carlos Abanades
Summary: This study investigates a Calcium Looping (CaL) configuration for cement plants using two interconnected circulating fluidized bed (CFB) reactors. The proposed system combines calcination and fragmentation of limestone in a single unit, taking advantage of the limestone's tendency to attrition. The economic analysis shows that this configuration is competitive.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Green & Sustainable Science & Technology
Daniele Ferrario, Stefano Stendardo, Vittorio Verda, Andrea Lanzini
Summary: The cement industry is responsible for 6-7% of global anthropogenic CO2 emissions and needs to be decarbonized to meet international greenhouse gas emission goals. This study explores the feasibility of using a solar-driven calcium looping (CaL) process for carbon capture in a cement plant. Through detailed process modeling and energy analysis, the performance of the system is evaluated. It is estimated that implementing solar-driven CaL technology in a cement plant could reduce CO2 emissions by over 90%.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Francesca Di Lauro, Claudio Tregambi, Fabio Montagnaro, Laura Molignano, Piero Salatino, Roberto Solimene
Summary: This research focuses on the application of the calcium looping concept for thermochemical energy storage. Experiments were conducted in a lab-scale fluidised bed reactor to study the relationships between bed material properties and carbonation degree, generation of fragments, and changes in particle density and porosity. The segregation behavior of bed materials was also investigated using a dedicated fluidisation column.
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)
Article
Thermodynamics
O. Bartoli, R. Chacartegui, A. Carro, C. Ortiz, U. Desideri, J. A. Becerra
Summary: This study proposes a thermochemical energy storage system for concentrated solar power plants based on the reversible hydration/dehydration process of calcium hydroxide. Through modeling and economic analysis, it is found that this system has potential economic advantages and competitiveness.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Nasrin Nemati, Yukari Tsuji, Tobias Mattisson, Magnus Ryden
Summary: This study investigated the conversion of gaseous fuels during chemical looping combustion (CLC) in a packed fluidized reactor. The use of packings was found to improve the fuel conversion by enhancing gas-solid mass transfer, mainly due to the reduced bubble size. The results were consistent for different fuels, packings, and bed heights.
Article
Thermodynamics
Marco Astolfi, Edoardo De Lena, Francesco Casella, Matteo Carmelo Romano
Summary: The study focuses on the potential application of calcium looping CO2 capture system in coal-fired power plants, comparing two different CaL systems and analyzing the role and economic benefits of sorbent storage systems. It is found that the secondary storage system can provide more flexible grid services and reduce the capital cost of CaL systems.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Dawid P. Hanak
Summary: This study demonstrated that the uncertainty in the sorbent characteristics would influence the techno-economic viability of the CaL retrofits. It showed that the cost of CO2 avoided fell between 29.74 and 46.50 euro/tCO(2), with a median of 35.94 euro/tCO(2). Such a figure was higher than that obtained in the deterministic assessment (32.40 euro/tCO(2)). The outcome of this study implies that the economic assessment using the deterministic approach could underestimate the costs associated with the CaL retrofits.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Energy & Fuels
Hisham Al Baroudi, Adeola Awoyomi, Kumar Patchigolla, Kranthi Jonnalagadda, E. J. Anthony
Summary: The paper critically reviews CO2 shipping as a transportation option for CCUS, highlighting its potential role in global CO2 transport. It discusses technological advances in marine carrier CO2 transportation and explores its feasibility compared to other transportation options. Despite challenges, implementation of CO2 shipping is crucial to support CCUS both in the UK and worldwide.
Article
Engineering, Environmental
Shuzhen Chen, Jinze Dai, Changlei Qin, Weiyang Yuan, Vasilije Manovic
Summary: Research indicates that the equilibrium temperature for CO2 adsorption/desorption of Li4SiO4-based sorbents at high temperatures is higher than theoretical values, with silicon precursors and Ce/Fe dopants having minimal effects on equilibrium. Sorbents with K/Na exhibit significant drops in equilibrium temperature at 0.5 atm of CO2, and higher K doping results in lower turnover temperatures.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Shuang Yue, Chunbo Wang, Yulin Huang, Ziyang Xu, Jiaying Xing, Edward J. Anthony
Summary: Oxy-steam combustion is a promising technology for reducing CO2 emissions. This study investigated the transformation and release of nitrogen under oxy-steam conditions, revealing that char prepared in a N-2/H2O atmosphere has higher nitrogen content compared to a N-2 atmosphere. The presence of OH radicals inhibits the transformation of N-Q to N-6 and promotes the conversion of N-6 to N-5, ultimately leading to lower emissions of HCN and NH3 under N-2/H2O conditions.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Environmental
Jiaying Xing, Chunbo Wang, Yulin Huang, Shuang Yue, Edward J. Anthony
Summary: This study investigated the effect of W and Mo modification on arsenic adsorption over Cu/gamma-Al2O3 catalyst. Results showed that W and Mo modification improved the NO conversion activities at low temperatures and reduced the arsenic adsorption on Cu/gamma-Al2O3 catalyst. W modification had a stronger promotion effect on arsenic resistance compared to Mo modification, and the proportion of As5+ on the W-Cu/gamma-Al2O3 surface was larger than that on the Mo-Cu/gamma-Al2O3 surface. Theoretical simulations revealed that Al2O3 adsorption on Mo-Cu/gamma-Al2O3 surface was stronger than that on W-Cu/gamma-Al2O3 surface.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Shuang Yue, Chunbo Wang, Ziyang Xu, Dong Wang, Fei Zheng, Edward J. Anthony
Summary: This study compared NO emissions during oxy-steam and air combustion of coal char, emphasizing the role of H2O and its resulting radicals in NO formation and reduction reactions. High concentrations of H2O promote the formation of OH radicals and hydroxyl groups during oxy-steam combustion, affecting NO formation and reduction reactions and ultimately NO emissions.
COMBUSTION AND FLAME
(2022)
Article
Energy & Fuels
Liang Chen, Yuan Fang, Chunbo Wang, Yajin Huo, Wenjing Wang, Edward J. Anthony
Summary: This study investigates the mechanism and effects of H2O on CaO sulfation through density functional theory and experiments. The presence of H2O decreases the energy barrier for Ca2+ diffusion on the CaSO4 surface, enhances the outward diffusion of Ca2+, and improves the adsorption of SO2 on a CaSO4 surface.
Article
Energy & Fuels
Ayub Golmakani, Seyed Ali Nabavi, Basil Wadi, Vasilije Manovic
Summary: The use of biogas as a renewable energy resource has the potential to significantly reduce greenhouse gas emissions, however its share in the global renewable energy market does not reflect this potential. This study reviews advancements in biogas cleaning and upgrading technologies, addresses converting biogas to biomethane, and discusses the application of biogas in various technologies.
Article
Chemistry, Multidisciplinary
Wahyu Meka, Janos Szuhanszki, Karen Finnry, Bijal Gudka, Jenny Jones, Mohamed Pourkashanian, Paul S. Fennell
Summary: In this study, a comprehensive model was used to predict the occurrence of ash deposition during biomass combustion, and the results were compared with previous experimental findings. The qualitative agreement between the modeled profiles and experimental results was reasonable, but further considerations of ash nucleation and coagulation may be needed. Nevertheless, the integrated model shows potential for future applications in the study of problematic solid fuels.
Article
Chemistry, Applied
Tong Si, Liang Chen, Chunbo Wang, Fuchun Ren, Yujie Ren, Edward J. Anthony
Summary: High-temperature filtration in coal units is an effective way to purify and utilize coal power. The results show that the high-temperature precipitator has good dust removal efficiency at different loads and has a smaller pressure drop compared to conventional filters. Compared to other treatment technologies, the high-temperature precipitator can reduce ammonia emissions in exhaust gas and significantly improve the air preheater blockage issue. Coal-fired power plants applying high-temperature precipitators can achieve energy consumption benefits and have a significant impact on reducing CO2 emissions.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Energy & Fuels
Michael High, Clemens F. Patzschke, Liya Zheng, Dewang Zeng, Rui Xiao, Paul S. Fennell, Qilei Song
Summary: Chemical-looping combustion (CLC) using metal oxides as oxygen carriers for fossil fuel combustion has been found to be promising. In this study, Cu-based mixed oxides derived from hydrotalcite were used as oxygen carriers for the combustion of solid fuels. The Cu-based oxygen carriers showed high performance and thermal stability, with reversible oxygen release and storage over multiple redox cycles. Slight deactivation and sintering were observed at a very high operation temperature.
Article
Environmental Sciences
Jude O. Asibor, Peter T. Clough, Seyed Ali Nabavi, Vasilije Manovic
Summary: This study assesses the deployment potential of five greenhouse gas removal (GGR) technologies at the country level and identifies priority regions. The results indicate the need for countries to include and prioritize these technologies in their nationally determined contributions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Thermodynamics
Shuang Yue, Chunbo Wang, Edward J. Anthony
Summary: A detailed investigation into the intrinsic kinetics mechanisms for the catalytic reduction of NO by Na-loaded char was conducted using DFT and TST calculations. The results revealed the essential role of the catalytic active center -O -Na in the interaction between NO and carbonaceous surface, with sensitivity to temperature and NO-to-CO stoichiometric ratio. Inspired by the findings, a conceptual approach for improving the catalytic performance of Na on NO reduction was proposed and shown to be theoretically feasible.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Chemistry, Multidisciplinary
Robin Abu, Kumar Patchigolla, Nigel Simms, Edward John Anthony
Summary: The use of hydrocarbon fuels and natural gas flaring is increasing due to population growth and rising standards of living. This paper aims to establish a framework and management tool to reduce regular gas flaring in Nigeria. The tool incorporates techno-economic analysis to assist operators and investors in making more profitable investment decisions.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Environmental
Basil Wadi, Chenhao Li, Vasilije Manovic, Peyman Moghadam, Seyed Ali Nabavi
Summary: In this study, the effects of primary, secondary, and tertiary amines on the adsorption of CO2 and CH4 were investigated. The adsorption performance and characteristics of the amine-functionalized adsorbents were analyzed. It was found that primary amines showed stronger interaction forces with CH4, while secondary amines were more selective in CO2/CH4 separations. Moderate densities of secondary amines were identified as potential candidates for adsorbent development.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Ke Wang, Jie Chen, Tianyu Wang, Jie Hong, Pengfei Zhao, Edward J. Anthony
Summary: Capture and conversion of CO2 from optimal scenarios into fuels or chemicals provide a viable solution to combat climate change. The proposed synergistic integration of catalytic calcium-looping gasification of biochar can capture and in situ convert CO2. Experimental tests and characterizations showed that the mixture of limestone and K2CO3-impregnated biochar can enhance decarbonation kinetics and CO yield, maintaining stable CO2 conversion at lower temperatures. The process demonstrated practical scalability and cost-effectiveness, opening a unique direction for net-negative emission.
CHEMICAL ENGINEERING JOURNAL
(2023)
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.