Article
Energy & Fuels
Jiaxin Tan, Yong He, Ye Yuan, Zhijun Zhou, Jianzhong Liu, Zhihua Wang
Summary: This study investigated the effects of gasification temperature and oxygen concentration on the mineral behaviors during gasification. The results showed that gasification with oxygen-enriched air promoted the retention of inorganic elements and changed the types and contents of minerals.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Thermodynamics
Namik Unlu, Sibel Ozdogan
Summary: In this study, the effect of blending torrefied biomass and coal samples on entrained flow co-gasification was experimentally investigated. The results showed that blending torrefied biomass with coal improved the gasification efficiency and syngas quality compared to conventional coal gasification. The findings suggest that co-utilization of coal and biomass can contribute to energy, waste, and climate change issues.
Article
Energy & Fuels
M. Shahabuddin, Sankar Bhattacharya
Summary: Co-gasification of renewable biomass and coal is a promising technique to increase gasification performance, reduce emissions, and partially replace coal with biomass, making the technology more sustainable.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
Article
Energy & Fuels
Jakub Mularski, Norbert Modlinski
Summary: This study focuses on the impact of char conversion modeling on gasification simulation results and demonstrates the optimization of input data to empirical char conversion kinetic-diffusion model. By applying kinetic parameters, significant impacts on in-reactor gas composition and char conversion factor were observed, with the optimization procedure resulting in some of the lowest errors in comparison to experimental data.
Article
Chemistry, Analytical
Tao Xu, Yongping Wu, Sankar Bhattacharya
Summary: This paper investigated the emissions of nitrogen and sulphur species during the pyrolysis and gasification of Maddingley and Yallourn coal in an entrained flow reactor. The study found that nitrogen and sulphur in coal are primarily converted into gaseous species during the gasification processes, and that high temperature and CO2 concentration have an impact on the emissions. The results are important for the gas cleaning process in entrained flow gasifiers.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Energy & Fuels
Guanghua Lu, Yonghui Bai, Peng Lv, Jiaofei Wang, Xudong Song, Weiguang Su, Guangsuo Yu
Summary: Clarifying the effects of inert minerals on the catalytic performance of Ca in coal gasification is crucial. The presence of CaO showed excellent catalytic performance, while Si and Al hindered the process. Interactions among Si, Al, and Ca had a catalytic effect on coal gasification, although slightly lower in reactivity compared to Ca-only coal. The evidence suggested that the deactivation of Ca catalyst was not caused by reactions among Ca, Si, and Al.
Article
Chemistry, Analytical
Haigang Zhang, Zhongjie Shen, Zizheng Dong, Yiru Yang, Jianliang Xu, Qinfeng Liang, Haifeng Liu
Summary: This paper investigates the effects of temperature and oxygen content on coal pyrolysis product distribution, char structure, and reactive properties. The results show that higher temperature enhances the release of volatiles and tar cracking, leading to increased gas phase yield and syngas concentration. However, temperatures above 900 degrees Celsius intensify char graphitization, which is not favorable for gasification. Oxygen introduction at 900 degrees Celsius accelerates the release of volatiles and intensifies depolymerization reaction, increasing the gas yields of CO and CO2. The presence of trace oxygen reduces char graphitization and improves gasification reactivity but high oxygen content (8%) leads to combustion on the char surface, destroying its structure and reducing gasification activity.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Energy & Fuels
Ming Lei, Cen Sun, Yanchao Zhang
Summary: The study found that pressurized pyrolysis intensified the decomposition of aromatic ring structure and hydroxyl hydrogen bonds in coal char, leading to the formation of low-substituted single rings, as well as shortening of aliphatic chains and carboxyl groups in char. Pressurized pyrolysis also increased the graphitization degree of char and inhibited the decomposition of low-temperature minerals. Furnace temperature had a more significant impact on mineral transformations compared to furnace pressure. Additionally, in pressurized conditions, the primary minerals in coal ash remained consistent but their relative contents changed, with combustion temperature influencing mineral transformations. The mixture of O-2/CO(2) restrained the decomposition of low-temperature minerals and formation of high-temperature minerals, with furnace temperature being the primary factor influencing ash mineral transformations.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Meng Ma, Jiaofei Wang, Yonghui Bai, Peng Lv, Xudong Song, Weiguang Su, Lu Ding, Juntao Wei, Guangsuo Yu
Summary: Volatile-char interactions affect the chemical structure and reactivity of coal char, with O-containing functional groups playing an important role in char reactivity. The decrease in gasification reactivity due to volatile-char interactions is attributed to the decrease in aromatic C-O and C=O, and the increase in graphite carbon structures.
Article
Energy & Fuels
Zixin Jiao, Li Liu, Yan Zhao, Xiye Chen, Penghua Qiu
Summary: The study evaluated the cogasification reactivity of Shenmu bituminous coal (SM) char and corn straw (CS) char in CO2 and found that increasing the blend ratio of CS and gasification temperature can weaken inhibition and enhance synergy. The addition of CS volatiles, especially potassium (K), can promote the cogasification reaction, with the promotion effect increasing with temperature. The comparison between CS-SM blend char and CS char volatiles-SM char showed different effects on gasification reactivity depending on the presence of alkali and alkaline earth metals.
Article
Thermodynamics
Jiawei Li, Subo Fan, Xuyang Zhang, Zhichao Chen, Yanyu Qiao, Zhenhua Yuan, Zhengqi Li
Summary: This study investigated the co-combustion of coal gasification fine ash (CGFA) and raw coal (RC), exploring its thermal conversion, synergistic behavior, kinetics, thermodynamics, and gas release behavior. The results demonstrated that adding RC to CGFA enhanced the combustion performance of CGFA and reduced the formation of polluting gases. This research contributes to the development of new energy strategies utilizing CGFA combustion.
Article
Mining & Mineral Processing
Tao Xu, Yongping Wu, Sankar Bhattacharya
Summary: The gasification kinetic modelling and prediction model for Victorian brown coal chars were found to be applicable in this study, with limited effect on gasification rate by particle size under 106μm. Maddingley char and Yallourn char showed differences in activation energies and pre-exponential factors during CO2 gasification.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Siqi Liu, Guangqing Zhu, Yanqing Niu, Liping Wen, Yu Lei, Denghui Wang, Shi'en Hui
Summary: This study investigates the relationship between char fragmentation/mineral coalescence and PM formation, finding that char fragmentation significantly increases the number of fine ash particles while dense char structure disadvantages char fragmentation but enhances mineral coalescence. The distribution of fly ash at different temperatures is influenced by the percolation theory, with particles at higher temperatures mainly undergoing perimeter fragmentation. The effect of ash content is more related to the distribution of mineral grains within char particles.
Article
Energy & Fuels
Ratale Matjie, John Bunt, Wilden Stokes, Hanno Bijzet, Katlego Mphahlele, Romanus Uwaoma, Christien Strydom
Summary: Potassium compounds added to coal can lead to gasifier blockage/corrosion/erosion and carbon loss due to clinker/slag formation at elevated temperatures. During pyrolysis, organic matter, kaolinite, and potassium compounds form oxygenates and potassium feldspars in the chars, significantly reducing coal particle caking.
Review
Engineering, Chemical
Fei Dai, Shengping Zhang, Yuanpei Luo, Ke Wang, Yanrong Liu, Xiaoyan Ji
Summary: Coal gasification is a core technology for clean coal utilization, enabling hydrogen-rich syngas production and reducing CO2 emissions. This review provides a brief overview of various coal gasification techniques, including conventional (fixed bed, fluidized bed, and entrained bed) and new (supercritical water, plasma, chemical-looping, and decoupling) gasification methods, discussing their gasifiers, process parameters, advantages, and challenges. Moreover, the potential of hydrogen production through different coal gasification technologies is analyzed. The decoupling gasification technology based on pyrolysis, coal char-CO2 gasification, and CO shift reaction is highlighted for its comprehensive coal utilization, low-energy CO2 capture and conversion, and efficient hydrogen production. This review also presents recent research advances in coal char-CO2 gasification, evaluating the influence of factors such as coal type, gasification agent composition, temperature, pressure, particle size, and catalyst on the gasification performance.
Article
Green & Sustainable Science & Technology
Jinhe Pan, Behzad Vaziri Hassas, Mohammad Rezaee, Changchun Zhou, Sarma V. Pisupati
Summary: A sequential chemical roasting, water leaching, and acid leaching process was developed for the recovery of REEs from coal fly ash. Adding NaOH and Na2CO3 proved to be effective in converting the glassy phases in the ash into water or acid soluble phases, enhancing the recovery of REEs.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Thermodynamics
He Yang, Sarma Pisupati, Haoquan Hu
Summary: The study modified a previous model to predict the N2 adsorption specific surface area of high-volatile bituminous char and analyzed the relationship between char surface area change and particle swelling.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Energy & Fuels
Shuangni Wang, Jianzhong Liu, Sarma V. Pisupati, Dedi Li, Zhihua Wang, Jun Cheng
Summary: This study addresses the difficulty in treating high-concentration organic waste liquids by using xanthan gum to prepare waste liquid coal water slurry (WCWS). The addition of 0.08 wt% xanthan gum resulted in a stable dispersion of the mixed waste liquid with an apparent viscosity of 921.1 mPa.s. Xanthan gum introduced steric hindrance interaction energy into the WCWS system, enabling stable dispersion.
Article
Engineering, Chemical
Aditi B. Khadilkar, James R. Kennedy, Peter L. Rozelle, Sarma Pisupati
Summary: This study discusses a unique agglomeration modeling methodology based on binary collisions to analyze the effects of heterogeneity in ash chemistry and granular physics. By utilizing methods such as population balance and thermodynamic equilibrium calculations, changes in particle size distribution (PSD) in fluidized beds were determined. The results show that ash agglomeration is most effective at temperatures below 850 degrees C when the binder content is low.
Article
Chemistry, Analytical
He Yang, Yahui Yang, Sarma V. Pisupati, Lijun Jin, Yang Li, Haoquan Hu
Summary: The trend of changing N-2 adsorption specific surface area during pyrolysis is significantly affected by coal rank and the arrangement of planar polycyclic aromatic structures in char. Two exponents introduced in the model can predict the specific surface area of various coals and a correlation between the fraction ratio of crosslinked metaplast to volatile yield and the order degree of aromatic structure arrangement is proposed. The model can also predict transition characteristics of subbituminous coal based on temperature and heating rates.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Review
Metallurgy & Metallurgical Engineering
Peter L. Rozelle, Maureen D. Feineman, Timothy S. White, Nicholas A. Crescenzo, Lee R. Kump, Alan R. Larson, Sarma V. Pisupati
Summary: The Mercer Clay bed in central Pennsylvania has been categorized as a critical mineral in the USA, leading to renewed production opportunities. New research on the deposit as a polymetallic resource has found high lithium contents, with alumina content ranging from 32 to 34 wt%, and total rare earth concentrations somewhat lower than in other regions. Further work is needed to identify the mineral hosts for lithium and rare earths and to determine the extent of enriched alumina, lithium, and rare earth concentrations.
MINING METALLURGY & EXPLORATION
(2021)
Article
Environmental Sciences
Behzad Vaziri Hassas, Mohammad Rezaee, Sarma Pisupati
Summary: Studies have shown that by adjusting the pH of the solution and adding specific chemicals during AMD treatment, efficient precipitation and recovery of rare earth elements and other elements can be achieved, improving the sustainability of the treatment process. Additionally, research on the impact of different ions and ligands has revealed that the recovery of most REEs can be achieved under specific conditions.
Article
Energy & Fuels
Xiaoshuai Wang, Yuegang Tang, Harold H. Schobert, Tengda Ma, Sarma Pisupati, Junying Zhang, Yifan Chen
Summary: Research on the partitioning behavior of 17 deleterious trace elements in Ge-rich coals during combustion at different scales found differences in volatilization behavior, with elements being more completely volatilized in coal-fired power plants compared to laboratory settings due to operating conditions. The volatilization behavior of trace elements in combustion can be classified into three stages, with elements falling into four groups based on their behavior during these stages. Factors affecting the behavior of elements in combustion were also discussed, providing further insight into potentially controlling their emissions.
Article
Engineering, Chemical
James R. Kennedy, Aditi B. Khadilkar, Sankar Bhattacharya, Sarma Pisupati
Summary: This work models the influence of operating conditions on agglomeration rate in a chemical-looping combustion fluidized bed reactor using coal as fuel. Factors such as type of oxygen carrier, coal ash composition, temperature, gas velocity, and ratio of ash to oxygen carrier were investigated. The type of oxygen carrier was found to have a significant impact on the rate of agglomeration, while the ratio of ash to oxygen carrier had a high impact on the rate of agglomeration.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Xiaojing Yang, Peter L. Rozelle, Sarma Pisupati
Summary: The study found that treatment with caustic soda can enhance the efficiency of extracting rare earth elements from coal overburden, especially for low-concentration REE phosphates. Experimental results showed that after caustic soda treatment, high recovery rates, particularly for Nd and Pr, can be achieved using diluted HCl and citric acid.
MINERALS ENGINEERING
(2021)
Article
Chemistry, Physical
Tao Xu, Jue Xu, Yongping Wu
Summary: The catalytic pyrolysis of pine sawdust with calcined dolomite was investigated in this study, and the effects of temperature on product distribution and gas composition were evaluated. The results showed that increasing temperature led to higher gas yield but lower solid and liquid product yields. The calcined dolomite exhibited a significant catalytic effect, reducing tar production by 44% and increasing syngas yield by 52.9%.
Article
Chemistry, Physical
Tao Xu, Xiuren Zheng, Jue Xu, Yongping Wu
Summary: Hydrogen production from biomass pyrolysis is a promising and attractive technology. This study investigates the catalytic pyrolysis of pine sawdust using nano-NiO/Al2O3 catalyst, and observes the effects of residence time and catalytic temperature on the pyrolysis performance. The results show that longer residence times and higher catalytic temperatures can enhance gas production and improve the quality of the syngas.
Article
Materials Science, Multidisciplinary
Akshay Gharpure, Randy L. Vander Wal, Sarma Pisupati
Summary: This study evaluates the potential of obtaining graphitizable precursors from domestically available coal as a solution to the declining availability of high-quality precursors and growing demand for synthetic graphite in the US. A new solvent extraction process is used to obtain a coal-derived synthetic pitch, which is compared with a commercially available petroleum pitch. The process offers advantages of lower temperature, pressure, and hydrogen addition requirement, resulting in an upgraded aromatic pitch with better graphitic quality.
C-JOURNAL OF CARBON RESEARCH
(2023)
Article
Energy & Fuels
Tao Xu, Jie Chen, Yongping Wu, Xicai Gao, Sankar Bhattacharya
Summary: The use of CO2 as feedstock for syngas production is an important topic in the field of clean energy. This study investigated the two-step gasification behavior of lignite and brown coals using CO2 as a reactant. The effects of CO2 concentration and residence time on gasification performance were examined. The results showed that higher temperature, higher CO2 concentration, and longer residence time improved the gasification syngas yield and carbon conversion. Moreover, the study found that different coals exhibited different gasification performance, with Fe-rich brown coal showing better pyrolysis performance.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Energy & Fuels
Xiaojing Yang, Daniel Kozar, Daniel Gorski, Anthony Marchese, James Pagnotti, Rusty Sutterlin, Mohammad Rezaee, Mark S. Klima, Sarma V. Pisupati
INTERNATIONAL JOURNAL OF COAL SCIENCE & TECHNOLOGY
(2020)
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.