Ruby Aslam , Qihui Wang , Jeenat Aslam , Mohammad Mobin , Chaudhery Mustansar Hussain , Zhitao Yan
{"title":"Effect of temperature, and immersion time on the inhibition performance of Q235 steel using spent coffee grounds derived carbon quantum dots: Electrochemical, spectroscopic and surface studies","authors":"Ruby Aslam , Qihui Wang , Jeenat Aslam , Mohammad Mobin , Chaudhery Mustansar Hussain , Zhitao Yan","doi":"10.1016/j.biombioe.2025.107961","DOIUrl":"10.1016/j.biombioe.2025.107961","url":null,"abstract":"<div><div>This study investigates the anticorrosive properties of undoped, and zinc and nitrogen-doped carbon quantum dots derived from spent coffee grounds referred to as CCDs and Zn,N-CCDs respectively, for the protection of Q235B steel corrosion in a 5 % HCl solution. The synthesized carbon quantum dots (CDs) were characterized using Transmission Electron Microscope (TEM), X-ray diffraction (XRD), zeta potential, Fourier Transform Infrared (FTIR), UV–vis and fluorescence spectroscopy. Their anticorrosive performance was assessed through weight loss measurements, Open circuit potential (OCP), Electrochemical impedance spectroscopy (EIS), Potentiodynamic polarization (PDP), Scanning Electron Microscopy/Energy dispersive Spectroscopy (SEM/EDS), and X-ray Photoelectron Spectroscopy (XPS) analysis. The results demonstrated that Zn,N-CCDs exhibit better inhibition efficiency i.e., 94.65 % at 150 ppm compared to CCDs which show 90.90 % at 300 ppm and 298 K. Moreover, 150 ppm of Zn,N-CCDs at a longer immersion time of up to 72 h at 313 K exhibited an inhibition performance of 98.33 % proving it as an efficient corrosion inhibitor to be used in acid pickling conditions. PDP analysis suggested that the Zn,N-CCDs reduce both anodic and cathodic dissolution processes. XPS and FTIR analyses confirmed the adsorption of CDs through heteroatoms present in the coffee grounds. Furthermore, surface morphological studies indicated significant adsorption of the Zn,N-CCDs on the metal surface, enhancing surface smoothness as compared to CCDs.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107961"},"PeriodicalIF":5.8,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haipeng Cui , Song Hu , Tao Yang , Limo He , Kai Xu , Long Jiang , Sheng Su , Yi Wang , Jun Xu , Jun Xiang
{"title":"Efficient methane decomposition to produce hydrogen and microwave absorption material by iron and nitrogen Co-doped Biocarbon: Synergistic mechanisms and performance","authors":"Haipeng Cui , Song Hu , Tao Yang , Limo He , Kai Xu , Long Jiang , Sheng Su , Yi Wang , Jun Xu , Jun Xiang","doi":"10.1016/j.biombioe.2025.107973","DOIUrl":"10.1016/j.biombioe.2025.107973","url":null,"abstract":"<div><div>This study explores the fabrication of Fe–N co-doped biochar (Fe–NAC) from waste balsa wood as an efficient catalyst for methane decomposition and as a precursor to functional carbon materials. Ferric nitrate and urea were used as the respective sources of iron and nitrogen. The Fe-NAC catalyst achieved 85 % methane conversion within 200 min at 800 °C, a 3.4-fold improvement over the parent biochar (AC). The stable biochar structure anchors Fe<sub>3</sub>N nanoparticles, forming a hierarchical porous catalyst that enhances performance. Theoretical calculations revealed that the Fe-N structure alters the electron distribution, facilitating efficient electron transfer from Fe sites to methane and intermediates, demonstrating a synergistic effect of heteroatoms and carbon supports. Additionally, Fe-NAC exhibited exceptional microwave absorption properties, achieving a minimum reflection loss (RL) of −42.48 dB at 14.96 GHz with a 4.67 GHz effective absorption bandwidth (EAB). Adjusting the thickness enabled coverage of the entire 4–18 GHz spectrum. Radar cross-section (RCS) simulations demonstrated superior microwave attenuation across a wide range of angles, surpassing other biochars. This study introduces a novel Fe-N biochar synthesis method, highlights its catalytic performance in hydrogen production, and demonstrates its potential in electromagnetic wave absorption, providing insights for green energy and functional material development.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107973"},"PeriodicalIF":5.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recovery of concentrated saccharide solution from microalgal residue via combined hot compressed water treatment and membrane separation","authors":"Fei Li , Satoshi Kawajiri , Bushra Al-Duri , Yoshito Oshima , Makoto Akizuki","doi":"10.1016/j.biombioe.2025.107975","DOIUrl":"10.1016/j.biombioe.2025.107975","url":null,"abstract":"<div><div>As fuel production from microalgae continues to attract attention, development of a technology to recover value-added compounds from its by-product, namely lipid-extracted microalgae residue, is highly desired. This study investigated a process combining hot compressed water (HCW) treatment and membrane separation for the recovery of concentrated saccharides solution from low-lipid <em>Chlorella vulgaris</em> as a model for lipid-extracted microalgae residue. By HCW treatment at 200 °C for 30 min, a solution containing polysaccharides with molecular weight of ∼1000–20000 and saccharides with lower molecular weight was obtained. Components were consecutively separated by ultrafiltration (UF) to recover polysaccharides, nanofiltration (NF) for the recovery of saccharides with lower molecular weight, and reverse osmosis for water purification. The UF membrane with molecular weight cut off (MWCO) = 1000 successfully retained polysaccharides with molecular weights 1000–20000, whereas the contained low molecular weight saccharides were retained by the subsequent NF membrane. Contrary to the MWCO of 1000, the UF permeate also contained some saccharides with molecular weight >1000, suggesting another factor such as hydrophobic/hydrophilic difference between the membrane and the molecules also present. In addition, saccharide concentrations of both UF and NF concentrates were higher than that of feed solution, suggesting that saccharides could be recovered as concentrated solutions. In the current process, the effects of the concentration of microalgae during HCW treatment and the operating pressure in membrane separation were also investigated.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107975"},"PeriodicalIF":5.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yang-Yang Zhang , Bing-Bing Song , Ya Wang , Qi-Long Wang , Jing-Hui Lv , Guo-Qing He , Guang-Hui Liu , Yu-Hong Kang , Xian-Yong Wei
{"title":"Mild oxidative cracking of Shanxi bituminous coal to carboxylic acids via sequential oxidation with aqueous hydrogen peroxide-acetic anhydride","authors":"Yang-Yang Zhang , Bing-Bing Song , Ya Wang , Qi-Long Wang , Jing-Hui Lv , Guo-Qing He , Guang-Hui Liu , Yu-Hong Kang , Xian-Yong Wei","doi":"10.1016/j.biombioe.2025.107991","DOIUrl":"10.1016/j.biombioe.2025.107991","url":null,"abstract":"<div><div>Shanxi bituminous coal (SBC) was subjected to mild oxidative cracking with aqueous hydrogen peroxide (AHPO)-acetic anhydride (AAH) in order to promote the clean and efficient utilization of coals, aligning with the objective of carbon neutrality. The total yields of oxidation products produced from sequential oxidation are 33.87 %, with the maximum yield of 16.40 % attaining at 2nd oxidation, and simultaneously more than 90 % of the organic matter in SBC are converted. Noteworthily, benzene carboxylic acids and alkanedioic acids are the main products resulting from the oxidative cracking of SBC accounting for 59.31 % and 26.90 % of the oxidation products, indicating the predominant existence of condensed aromatic and diarylalkane structures in SBC. In addition, 3 carboxylic acids, <em>i.e.</em>, alkanoic acids, alkanetricarboxylic acids, and arenecarboxylic acids, were also detected with a low relative abundance of 9.72 %, 0.32 %, and 3.75 %, respectively. Meanwhile, during the sequential oxidative cracking process, the radicals <strong><sup>.</sup></strong>OH and <strong><sup>.</sup></strong>OOH generated from the reaction of AHPO and AAH are highly reactive and capable of degrading the macromolecular networks in SBC into soluble carboxylic acids. The present study provides a clean method for efficient utilization of coals in the production of high value-added oxygen-containing organic chemicals, especially carboxylic acids such as phthalic acid and succinic acid.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107991"},"PeriodicalIF":5.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammet Tokmakci , N. Filiz (Tumen) Ozdil , Mehmet Bilgili
{"title":"Municipal solid waste to biomass energy in Türkiye: A life cycle assessment approach for circular economy integration","authors":"Muhammet Tokmakci , N. Filiz (Tumen) Ozdil , Mehmet Bilgili","doi":"10.1016/j.biombioe.2025.107982","DOIUrl":"10.1016/j.biombioe.2025.107982","url":null,"abstract":"<div><div>This study assesses the potential of biomass energy derived from municipal solid waste (MSW) in Türkiye, focusing on its contribution to the national energy portfolio and the circular economy. Türkiye, facing increasing energy demand and environmental challenges, has a growing need to diversify its energy sources. By utilizing MSW, the country can simultaneously address waste management issues and generate renewable energy. The analysis, based on data from 2010 to 2020, reveals that Türkiye's theoretical biomass potential from MSW was approximately 31,789 kt, with an electricity generation potential of 379,698 GWh, representing 7.81 % of the country's electricity demand. This study uses a Life Cycle Assessment (LCA) approach to evaluate the environmental impacts of different WtE technologies, including pyrolysis, gasification, and anaerobic digestion. The LCA results show that adopting these technologies could significantly reduce greenhouse gas emissions, particularly carbon dioxide (CO<sub>2</sub>), methane (CH<sub>4</sub>), and nitrous oxide (N<sub>2</sub>O). Furthermore, regional analysis highlights the Marmara region as having the highest biomass energy potential, contributing over 35 % of Türkiye's total MSW production. Projections for 2030 suggest that Türkiye's annual waste generation could exceed 35 million tons, offering even greater potential for biomass energy production. In addition, this study compares Türkiye's WtE potential with that of other countries, particularly in the European Union, and suggests that by adopting similar technologies and policy frameworks, Türkiye can enhance its energy independence and meet its renewable energy targets. The results underscore the importance of integrating MSW-derived biomass energy into Türkiye's national energy strategy, contributing to a sustainable and circular economy model.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107982"},"PeriodicalIF":5.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fairuz Milkiy Kuswa , Hanafi Prida Putra , Hafizh Ghazidin , Adi Prismantoko , Samdi Yarsono , Ichsan Maulana , Widi Pancono , Teguh Widjajanto , Puji Asmanto , Agus Saptoro , Hari B. Vuthaluru , Hariana Hariana
{"title":"Ash deposition characteristics from high temperature co-combustion of oil palm waste with rubber and sengon woods","authors":"Fairuz Milkiy Kuswa , Hanafi Prida Putra , Hafizh Ghazidin , Adi Prismantoko , Samdi Yarsono , Ichsan Maulana , Widi Pancono , Teguh Widjajanto , Puji Asmanto , Agus Saptoro , Hari B. Vuthaluru , Hariana Hariana","doi":"10.1016/j.biombioe.2025.107992","DOIUrl":"10.1016/j.biombioe.2025.107992","url":null,"abstract":"<div><div>This study aims to assess the risks arising from the firing of oil palm waste, rubber wood (<em>Hevea brasiliensis</em>), and sengon wood (<em>Albizia chinensis</em>) that have different potential ash problems. These three biomasses were also mixed to determine the influence of each other. Material characterization, initial predictions using empirical calculations, lab scale combustion experiments using a drop tube furnace, and further ash observation using scanning electron microscopy and X-ray diffraction were conducted to determine the overall risk of slagging, fouling, and corrosion. This study found that rubber wood has less risk slagging and fouling with more unfused ash particles and high melting minerals observed. Addition of rubber wood to oil palm waste is also able to minimize the slagging and fouling risk with less ash deposits and more unfused ash particles compared to single firing oil palm waste and mixed of sengon wood and oil palm waste. This study provides an insight of potential mixed biomass which may be able to improve the ash-related problems during combustion.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107992"},"PeriodicalIF":5.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quality valuation and open fermentation process of polyhydroxyalkanoates production for the waste carbons biorefinery using Paracoccus sp. TOH as chassis","authors":"Leizhen Zhao, Lin Chen, Yuanxi Zhang, Jiexuan Han, Gaojie Sun, Jianhang Qu","doi":"10.1016/j.biombioe.2025.107990","DOIUrl":"10.1016/j.biombioe.2025.107990","url":null,"abstract":"<div><div>Waste materials with sufficient carbon substrate and deficient nitrogen content are optimal for microbial synthesis of polyhydroxyalkanoates (PHA), particularly in an open fermentation model using piperazine as a nitrogen-based controlling element. This study evaluated the fermentation performance of different waste carbons (by-product sodium acetate, crude glycerol, and cane molasses) using a versatile strain, <em>Paracoccus</em> sp. TOH. Firstly, it was observed that crude glycerol has a higher carbon content (1589.9 g-COD·L<sup>−1</sup>, 551.1 ± 4.6 g-TOC·L<sup>−1</sup>), a lower nitrogen proportion (1.61 g L<sup>−1</sup>), and a favorable price (125 $·t<sup>−1</sup>). Subsequently, crude glycerol was identified as a suitable substrate for poly(3-hydroxybutyrate) (PHB) fermentation. The optimal PHB concentration was found to be 1.99 g L<sup>−1</sup> and 1.81 g L<sup>−1</sup> for (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> and piperazine system, respectively, after process debugging. Foremost, the feasibility of open PHB accumulation (0.87 g L<sup>−1</sup>) was achieved by dynamically adjusting the feed of piperazine. This study provided valuable insights into the development of a convenient biomanufacturing technique for the valorization of organic waste.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107990"},"PeriodicalIF":5.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Uganeeswary Suparmaniam , Cheng Yaw Li , Man Kee Lam , Nurul Tasnim Sahrin , Hemamalini Rawindran , Chin Seng Liew , Jun Wei Lim , Inn Shi Tan , Sie Yon Lau , Bridgid Lai Fui Chin
{"title":"Enhancing lipid yield in freshwater microalgae through synergistic abiotic stressors for sustainable biodiesel production","authors":"Uganeeswary Suparmaniam , Cheng Yaw Li , Man Kee Lam , Nurul Tasnim Sahrin , Hemamalini Rawindran , Chin Seng Liew , Jun Wei Lim , Inn Shi Tan , Sie Yon Lau , Bridgid Lai Fui Chin","doi":"10.1016/j.biombioe.2025.107978","DOIUrl":"10.1016/j.biombioe.2025.107978","url":null,"abstract":"<div><div>Microalgae biomass shows notable promise as a liquid biofuel source with a lower carbon footprint. However, for large-scale commercialization, increasing lipid yield, especially by utilizing waste resources in a circular bioeconomy framework is critical to ensuring both efficiency and environmental sustainability. This study presents a novel approach to enhance sustainable biodiesel production from <em>Chlorella vulgaris</em> using composted chicken manure (CM) as the sole nutrients source through various individual and combined abiotic stressors to optimize lipid yield and biodiesel quality. It was observed that the lipid yield of microalgae cultures was increased to 0.163, 0.381, and 0.182 g/L when stressed under 4 % v/v nutrients limitation, 15 g/L of salinity, and 2 g/L of bicarbonate, respectively compared to stress-free culture (0.139 g/L). Moreover, <em>C. vulgaris</em> cultivated under combined stress conditions i.e., salinity (15 g/L) and bicarbonate addition (2 g/L) further enhanced the lipid yield and carbon dioxide (CO<sub>2</sub>) fixation rate than control culture by 68.26 % and 16.64 %, respectively. Additionally, the transesterified lipid demonstrated a remarkable resemblance to corn, soybean, and sunflower oil, containing substantial quantities of palmitic acid (C16:0), oleic acid (C18:1), and linoleic acid (C18:2), thus highlighting its potential as a viable alternative to traditional vegetable oils for biodiesel conversion. Fourier transform-infrared (FT-IR) spectroscopy further confirmed the presence of ester functional groups and unsaturated bonds in the biodiesel, validating the successful transesterification and high-quality FAME profile of both control and stressed cultures.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107978"},"PeriodicalIF":5.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francis Oppong , Xiaolu Li , Chen Yuan , Sven Eckart , Abdellatif M. Sadeq , Francis Kemausuor , Martinson A. Nartey , Xu Cangsu , Li Yuntang
{"title":"Recent developments on ethyl levulinate as a promising bio-based transportation fuel","authors":"Francis Oppong , Xiaolu Li , Chen Yuan , Sven Eckart , Abdellatif M. Sadeq , Francis Kemausuor , Martinson A. Nartey , Xu Cangsu , Li Yuntang","doi":"10.1016/j.biombioe.2025.107964","DOIUrl":"10.1016/j.biombioe.2025.107964","url":null,"abstract":"<div><div>Ethyl levulinate is an oxygenated fuel derived from biomass, offering significant advantages in reducing engine emissions and enhancing performance. Therefore, deeply understanding its production technologies and practical engineering applications is essential for enhancing its use and scalability in clean energy systems. This paper examines ethyl levulinate market trends, economic viability, production systems, engineering applications, and environmental and health impacts to understand its recent science and technology advancement, and its production and application limitations that require immediate attention. Significant advancements have been achieved in ethyl levulinate production; however, optimizing reactor systems, catalytic processes, and feedstock pretreatment remains critical for commercially viable and high-output synthesis. Laboratory-scale developments show promising results, but industrial-scale production is still scarce. Therefore, to facilitate the commercialization of ethyl levulinate, additional research and development (R&D), supportive policies, and increased investment are required. Ethyl levulinate reduces harmful pollutants and improves engine performance, though more testing is required under optimal conditions. Toxicological studies suggest potential health and environmental impacts, but additional research is necessary.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107964"},"PeriodicalIF":5.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kun Xiang , Hualin Chen , Chuanqing Yao , Yuanyuan Wan , Han Ren , Jiangmin Zhou
{"title":"Data-driven machine learning with SHAP for predicting multiple biochar properties from agricultural and forestry waste","authors":"Kun Xiang , Hualin Chen , Chuanqing Yao , Yuanyuan Wan , Han Ren , Jiangmin Zhou","doi":"10.1016/j.biombioe.2025.107958","DOIUrl":"10.1016/j.biombioe.2025.107958","url":null,"abstract":"<div><div>The pyrolysis of agricultural and forestry waste for biochar production is an effective method for resource utilization and carbon sequestration. The diversity of these wastes leads to variations in biochar properties, limiting its applications. In recent years, machine learning (ML) models have been developed to predict biochar properties. However, there is currently a lack of a generalized predictive model capable of simultaneously evaluating multiple properties of biochar. This study systematically evaluated the performance of six ML models—CatBoost, LightGBM, NGBoost, XGBoost, RandomForest, and AdaBoost—using 288 pyrolysis datasets from 43 types of agricultural and forestry waste to predict biochar yield (BY), carbon content (C), fixed carbon content (FC), ash content, energy yield (EY), higher heating value (HHV), pH, and cation exchange capacity (CEC). Among these models, CatBoost demonstrated the best performance, with R<sup>2</sup> values ranging from 0.76 to 0.95. Shapley Additive Explanations (SHAP) analysis identified pyrolysis temperature as a key factor influencing biochar yield, carbon content, and pH, while feedstock composition (e.g., cellulose and lignin) was found to significantly affect CEC and FC. The CatBoost model could be used for the dynamic adjustment of pyrolysis parameters based on feedstock, therefore, a modular visual prediction tool was developed using CatBoost for the large-scale production of specific biochar for specific applications by allowing the precise selection of corresponding types of feedstock and pyrolysis conditions.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"200 ","pages":"Article 107958"},"PeriodicalIF":5.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}