Article
Environmental Sciences
Terrell M. Thompson, Brent R. Young, Saeid Baroutian
Summary: This study evaluated the potential of using pelagic Sargassum as a marine energy crop through hydrothermal pretreatment and co-digestion with food waste. The results showed that hydrothermal pretreatment promoted methane recovery from mono-substrate digestion and co-digestion increased methane yield, while also providing bio-fertilizer potential.
Article
Green & Sustainable Science & Technology
Liang Chen, Ziwei He, Luxin Yang, Lin Wang, Yangyang Li, Ting Chen, Huan Li
Summary: This study compares four common methods for treating food waste: incineration, anaerobic digestion, composting, and feed processing. The results show that anaerobic digestion is the best treatment option for minimizing carbon emissions, while composting has the highest carbon emissions. In terms of economic performance, feed processing is the best choice, while incineration results in high expenditure.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Qiuxiang Xu, Tian-Yi Luo, Ruo-Lan Wu, Wei Wei, Jing Sun, Xiaohu Dai, Bing-Jie Ni
Summary: The study demonstrates that rhamnolipid (RL) pretreatment has a promoting effect on methane production in two-phase anaerobic digestion of waste activated sludge, although methane production may be inhibited in the presence of RL during the acidogenic phase. Further analysis shows that the addition of RL can increase methane production throughout the entire two-phase anaerobic digestion process.
Article
Agricultural Engineering
Xiangmeng Liu, Jintuo Zou, Sunqiang Xu, Xinlong Li, Jun Xie, Qiang Yu
Summary: The lignin content of feedstock was found to be the main factor affecting the biomass recalcitrance based on the anaerobic digestion analysis of 16 plant wastes from South China. To improve the anaerobic digestion performance of mixed fruit shell, hydrothermal pretreatment based on biogas slurry recycling (HPBSR) was proposed, which reduced the lignin content of mixed fruit shell and increased methane yield. The HPBSR experimental group showed no production of anaerobic digestion inhibitors and had a higher humic acid concentration, contributing to the improvement of methane yield. The results provide insights into the resource utilization of biogas slurry.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Thermodynamics
Xiaodi Xie, Chao Peng, Xinyu Song, Nana Peng, Chao Gai
Summary: This study investigates a strategy combining microwave-assisted hydrothermal carbonization (MHTC) pretreatment with subsequent pyrolysis for the treatment of food waste digestate (FWD). The MHTC pretreatment effectively converts FWD to hydrothermal carbons (HCs) and improves their fuel properties. Thermal decomposition experiments reveal that the pyrolysis behavior of FWD-derived HCs is similar to that of platform biomass. Kinetic analysis determines the activation energy and reaction mechanism for the pyrolysis of FWD and HCs.
Article
Engineering, Environmental
Jiri Rusin, Katerina Chamradova, Panagiotis Basinas
Summary: Anaerobic digestion of food waste at low temperature can efficiently produce biomethane. The two-stage low-temperature reactor is more energy-efficient and operates stably compared to mesophilic reactors.
Article
Thermodynamics
Lingkan Ding, Jun Cheng, Dan Qiao, Hui Li, Ze Zhang
Summary: In this study, mild hydrothermal pretreatment of raw food waste was used to improve the performance of subsequent anaerobic digestion, leading to successful bioenergy recovery from food waste. The pretreated food waste showed stable production in a two-stage system, while the raw food waste and one-stage system exhibited a decline in performance. Microbial community analysis revealed the mechanism behind the pretreatment, and the pretreated food waste had a significant advantage in reducing energy yield.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Agricultural Engineering
Shunan Zhao, Wenhan Chen, Manli Liu, Huanyu Lv, Yunguo Liu, Qigui Niu
Summary: This study found that adding chicken manure as a co-substance can improve the biomethane production of Enteromorpha and green waste. It also showed changes in the excitation-emission matrix spectra and enhanced cellulase activity. Microbial community analysis and potential metabolic pathway analysis indicated that co-digestion enriched hydrogenotrophic methanogens.
BIOMASS & BIOENERGY
(2022)
Article
Agricultural Engineering
Jungsu Park, Roent Dune A. Cayetano, Gi-Beom Kim, Yura Jo, Yeelyung Kwon, Zhongfang Lei, Sang-Hyoun Kim
Summary: Alkaline-thermal pretreatment at 60 degrees Celsius and pH 10 for 24 hours resulted in higher methane yield and maximum net savings for WAS. Considering the degree of sludge disintegration and microbial growth are better indicators for predicting anaerobic digestibility performance.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yasmim Arantes da Fonseca, Nayara Clarisse Soares Silva, Adonai Bruneli de Camargos, Silvana de Queiroz Silva, Hector Javier Luna Wandurraga, Leandro Vinicius Alves Gurgel, Bruno Eduardo Lobo Baeta
Summary: This study investigated the production of biobased volatile fatty acids (VFAs) from pretreated olive mill solid waste (OMSW). Different hydrothermal pretreatment conditions and anaerobic digestion systems were evaluated, with significant impacts on the microbial community and VFA production profile. The study highlights the potential of using OMSW for sustainable VFA production and the importance of understanding the influence of pretreatment and digestion conditions on the process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
H. M. Mahmudul, M. G. Rasul, D. Akbar, R. Narayanan, M. Mofijur
Summary: This paper thoroughly examines the technological, economic, and environmental feasibility of utilizing household food waste to produce sustainable energy in Australia, highlighting the importance of waste to energy in reducing greenhouse gas emissions and promoting economic development.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Yao Lu, Liang Zhang, Xiaoyu Zuo, Beibei Yan, Xiujin Li, Hairong Yuan
Summary: This study investigated the depolymerization products, biomethane production, and microbial community of corn stover depolymerized with urea using a hydrothermal approach. The addition of urea facilitated the breakage of the ester bonds in lignocellulose structure, increasing the levels of volatile fatty acids and phenol. Depolymerization with 2% urea and 10 min of hydrothermal time produced higher cumulative biomethane yield. The combined depolymerization enhanced the acetate-methane pathway by promoting the growth of specific microbial species, resulting in increased biomethane production.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Thermodynamics
Jin Sun, Yasunori Kosaki, Koji Kawamura, Nobuhisa Watanabe
Summary: This study demonstrates the performance of ethanol fermentation pretreatment (EP) for food waste in achieving high-load anaerobic digestion operation using an anaerobic membrane bioreactor (AnMBR). By increasing the organic loading rate (OLR) and maintaining a low propionic acid accumulation, the methane content in biogas was significantly improved. Additionally, the study showed that primary methanogens were tolerant to ammonia inhibition, leading to improved buffering capacity at high load, and identified the abundance of hydrogenotrophic methanogens in AnMBR through 16S rRNA sequence analysis. The results suggest that the EP contributes to creating a virtuous cycle by maintaining a lower hydrogen partial pressure and achieving ultra-high load in the system.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Agricultural Engineering
Fateme Saadatinavaz, Keikhosro Karimi, Joeri F. M. Denayer
Summary: The study utilized hydrothermal pretreatment to improve fermentation yield from orange waste, leading to the production of biobutanol, biohydrogen, and biomethane. Through detoxification of the pretreatment liquor, the sustainable biorefinery process was successfully implemented.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yingnan Li, Pan Wang, Liya Zhao, Xinyu Yang, Lianhai Ren
Summary: This study investigated the effects of biochar supported nano zero-valent iron (BC-nZVI) on anaerobic digestion of food waste. The results showed that 1 g/L of BC-nZVI was the optimal concentration for methane production. Microbial community analysis and gene sequence analysis indicated that the addition of BC-nZVI increased the abundances of hydrolytic bacteria and acetoclast, promoting the production of enzymes related to methane metabolism and stabilizing the anaerobic digestion system.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Yufang Wei, Yanyan Lan, Xiujin Li, Minghan Gao, Shuai Yuan, Hairong Yuan
Summary: The effects of liquid fraction of digestate (LFD) pretreatment on anaerobic digestion (AD) performance and microbial community characteristics were evaluated. The results showed that LFD pretreatment improved biomethane yields and saved time. The optimization of pretreatment parameters and the response of microbial community structure to substrate sources were observed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yuqian Li, Junwei Ma, Hairong Yuan, Xiujin Li
Summary: Decreasing feeding frequency can enhance the performance of anaerobic digestion of corn stover. Less feeding increases methane production and system stability, altering the microbial community structure.
WASTE AND BIOMASS VALORIZATION
(2022)
Review
Agricultural Engineering
Ruolin Guan, Hairong Yuan, Shuai Yuan, Beibei Yan, Xiaoyu Zuo, Xiteng Chen, Xiujin Li
Summary: This paper reviewed recent research on anaerobic bioconversion of crop stalks, focusing on the effects of pretreatment methods, AD operation parameters, and technology development on AD performance, and proposed recommendations for future development.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Yue Liu, Hui Gong, Chuan Shi, Hairong Yuan, Xiaoyu Zuo, Yanqing Chang, Xiujin Li
Summary: This study investigated the effect of liquid fraction of digestate assisted hydrolysis and acidification of corn straw on enhanced biogas production. By using response surface methodology and artificial neural network, the acidogenic performance was optimized and the highest methane yield was observed under the optimal conditions. Combining LFD and HA improved the performance in anaerobic digestion, resulting in a significantly higher methane yield compared to the control group. The ANN-GA model showed advantages in determining the non-linear behavior of corn straw anaerobic digestion.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agricultural Engineering
Yao Lu, Hairong Yuan, Beibei Yan, Xiaoyu Zuo, Xiujin Li
Summary: This study investigated the improved performance of corn stover anaerobic digestion by low-temperature hydrothermal pretreatment enhanced with urea. The combination of low-temperature HP with urea improved bio-methane yield, reduced digestion time, and increased volatile solid conversion. The study also observed changes in bacterial and archaeal diversity and composition, with certain species enriched by HP with urea. Urea was found to enhance methanogenic activity and improve the nutrition balance in the AD system.
BIOMASS & BIOENERGY
(2022)
Article
Agricultural Engineering
Hairong Yuan, Ruolin Guan, Chenxing Cao, Mengyuan Ji, Junyu Gu, Li Zhou, Xiaoyu Zuo, Chao Liu, Xiujin Li, Beibei Yan, Jianwei Li
Summary: The study investigated the modification sequence of chemical and biological modifiers for enhancing volatile fatty acids production from rice straw. The simultaneous modification (CaO-LFD) mode demonstrated superior acidification performance and changed the domestication of fermentative bacteria. The synergistic effect between CaO and LFD was revealed, showing the effective role of CaO in degrading recalcitrant rice straw and promoting carbohydrate metabolism and acetogenesis by LFD.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Yao Lu, Liang Zhang, Xiaoyu Zuo, Beibei Yan, Xiujin Li, Hairong Yuan
Summary: This study investigated the depolymerization products, biomethane production, and microbial community of corn stover depolymerized with urea using a hydrothermal approach. The addition of urea facilitated the breakage of the ester bonds in lignocellulose structure, increasing the levels of volatile fatty acids and phenol. Depolymerization with 2% urea and 10 min of hydrothermal time produced higher cumulative biomethane yield. The combined depolymerization enhanced the acetate-methane pathway by promoting the growth of specific microbial species, resulting in increased biomethane production.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Mathematics
Junlei Gao, Hairong Yuan
Summary: This study demonstrates the existence, uniqueness, and stability of a family of stationary subsonic compressible Euler flows with mass-additions in two-dimensional rectilinear ducts, and introduces a new decomposition and nonlinear iteration scheme to overcome the challenges posed by mass-additions.
JOURNAL OF DIFFERENTIAL EQUATIONS
(2022)
Article
Environmental Sciences
Yufang Wei, Xitong Wang, Zhengui Shi, Shuai Yuan, Hairong Yuan, Xiujin Li
Summary: This study investigated the strategy of using hydrothermal pretreatment and addition of oyster shell to enhance hydrogen production from food waste through dark fermentation. The results showed that this strategy significantly increased the hydrogen yield and improved the acidification performance. The study also analyzed the kinetic modeling of the fermentation process and identified the factors affecting hydrogen yield.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Thermodynamics
Rui Bao, Yufang Wei, Ruolin Guan, Xiujin Li, Xuebin Lu, Siyuan Rong, Xiaoyu Zuo, Hairong Yuan
Summary: This study investigated the performances and microbial community dynamics of high-solids anaerobic co-digestion (HSACoD) of food waste (FW) and highland barley straw (HBS). The results showed that HSACoD can enhance AD speed in the early phase of digestion and improve system stability.
Article
Environmental Sciences
Yao Lu, Yaya Sun, Liang Zhang, Xiaoyu Zuo, Xiujin Li, Hairong Yuan
Summary: Corn stover (CS) is a potential feedstock for biomethane production to replace fossil fuels, but its recalcitrant structure limits its degradation in anaerobic digestion (AD). This study investigated a low-temperature urea-hydrothermal pretreatment of CS and revealed the mechanisms behind enhanced biomethanation through biomethane production, substance bioconversion, hydrolase activity, and metagenomic analysis. The results showed that the pretreatment increased the specific surface area of CS by 11.5%, leading to higher volatile fatty acids and reducing sugars, potentially enriching anaerobic microorganisms. The pretreated CS achieved higher biomethane yield, volatile solid removal rate, and shorter digestion time, attributed to the enrichment of specific bacteria and archaea, as well as enhanced enzyme activity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biotechnology & Applied Microbiology
Liang Yu, Do-Gyun Kim, Ping Ai, Hairong Yuan, Jingwei Ma, Quanbao Zhao, Shulin Chen
Summary: To improve biomethane productivity in anaerobic digestion, the effects of metals and metal ions have been extensively studied. Different doses of zinc and zinc ions were added to batch AD experiments, and it was found that a dose of 1 g/L of zinc and 4 mg/L of zinc ions resulted in the highest biomethane production. The research provides insight into selecting appropriate amounts of metals or metal ions to enhance biomethane productivity for industrial AD processes.
FERMENTATION-BASEL
(2023)
Article
Mathematics, Applied
Yunjuan Jin, Aifang Qu, Hairong Yuan
Summary: This paper solves the Riemann problems for isentropic compressible Euler equations of polytropic gases in the class of Radon measures and finds solutions with concentrated mass. The paper presents different types of solutions based on the requirement of over-compressing entropy condition and discusses the self-similarity of solutions as well as the construction of solutions with concentrated mass.
COMMUNICATIONS ON APPLIED MATHEMATICS AND COMPUTATION
(2023)
Article
Mathematics, Applied
Yunjuan Jin, Aifang Qu, Hairong Yuan
Summary: In this study, we proposed rigorous definitions for Radon measure solutions of boundary value problems in high supersonic flows. We also constructed various interesting measure solutions and established a mathematical foundation for engineering applications and further studies of measure solutions of compressible Euler equations.
COMMUNICATIONS IN MATHEMATICAL SCIENCES
(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.