Biomass & Bioenergy最新文献

{"title":"Preparation, functional modification and industrial application of nanocellulose aerogels – A comprehensive review","authors":"Qinghua Ji ,&nbsp;Zhenqi Li ,&nbsp;Linxi Su ,&nbsp;Isaac Duah Boateng ,&nbsp;Cunshan Zhou ,&nbsp;Xianming Liu","doi":"10.1016/j.biombioe.2025.107591","DOIUrl":"10.1016/j.biombioe.2025.107591","url":null,"abstract":"<div><div>Nanocellulose is a prospective material for preparing aerogels because of its straightforward surface modification, hydrophilicity, biocompatibility, and rich functional groups. The third-generation aerogel is an aerogel based on nanocellulose and has garnered widespread interest owing to its distinctive benefits, including a high specific surface area, three-dimensional structure, biodegradability, low density, renewability, and high porosity. This paper examines the fabrication and functional alteration of nanocellulose aerogels. The preparation of nanocellulose aerogel involves four primary steps: dissolving the nanocellulose, forming a gel, replacing the solvent in the wet gel, and drying the wet aerogel. The functional modification methods of nanocellulose aerogel mainly include mechanical functionalization, thermal functionalization, conductive functionalization, magnetic functionalization, and antibacterial functionalization. Functionalization enhances the nanocellulose composite aerogel's hydrophobicity, adsorption, mechanics, and antibacterial effects, while also endowing it with conductivity and electromagnetic shielding capabilities. This broadens its applicability and versatility in environmental protection. This paper offers an extensive overview of the progress achieved in nanocellulose aerogel research across various fields, such as adsorption, energy storage, sensing, thermal insulation, electromagnetic shielding, biomedicine, and more. In conclusion, the potential future developments and upcoming challenges facing nanocellulose aerogel are explored.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107591"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936736","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":"Study on prediction models of oxygenated components content in biomass pyrolysis oil based on neural networks and random forests","authors":"Yuqian Zou,&nbsp;Hong Tian,&nbsp;Zhangjun Huang,&nbsp;Lei Liu,&nbsp;Yanni Xuan,&nbsp;Jingchao Dai,&nbsp;Liubao Nie","doi":"10.1016/j.biombioe.2025.107601","DOIUrl":"10.1016/j.biombioe.2025.107601","url":null,"abstract":"<div><div>Biomass pyrolysis oil, as a renewable energy source, has significant application value, with the content of its oxygenated components being a critical parameter affecting its properties and utilization methods. This study investigates the prediction of oxygenated component content in biomass pyrolysis oil using two machine learning methods: neural networks and random forests. A large dataset of biomass pyrolysis oil samples was collected and analyzed for their oxygenated component content. Neural network and random forest techniques were used for model training and validation, and the dataset was split into training and testing sets (90 %) and (10 %), respectively. The experimental results indicate that both algorithms can accurately predict the oxygenated component content in biomass pyrolysis oil (R² &gt; 0.81, RMSE &lt;3.46). Additionally, the models' performance was assessed and contrasted, providing effective methods and references for predicting the oxygenated component content in biomass pyrolysis oil.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107601"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936739","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":"Optimizing biodiesel production: Energy efficiency and kinetic performance of microwave and ultrasonic transesterification vs. conventional techniques","authors":"Abdallah S. Elgharbawy ,&nbsp;M.A. Abdel-Kawi ,&nbsp;I.H. Saleh ,&nbsp;Mohamed A. Hanafy ,&nbsp;Rehab M. Ali","doi":"10.1016/j.biombioe.2025.107593","DOIUrl":"10.1016/j.biombioe.2025.107593","url":null,"abstract":"<div><div>This study explores the enhancement of biodiesel production via microwave- and ultrasonic-assisted transesterification, comparing their efficiencies against conventional methods using potassium carbonate (K₂CO₃) as a cost-effective heterogeneous catalyst. The results show that conventional transesterification, under optimal conditions (60 min, 12:1 methanol-to-oil (MTO) molar ratio, 2.5 wt% catalysts at 60 °C and 300 rpm), yields 90.7 % biodiesel while consuming 2574 kJ of energy. In contrast, microwave-assisted transesterification (6:1 MTO molar ratio, 1 wt% catalyst, 1 min) and ultrasonic-assisted transesterification (6:1 MTO molar ratio, 1 wt% catalyst, 15 min) achieved 90.7 % and 90.3 % biodiesel yields, respectively, while reducing energy consumption by 97.5 % and 85 %. The results prove that the microwave is the most effective technique for biodiesel production with minimum operating conditions, energy consumption, and the highest biodiesel specifications followed by the ultrasonic technique. Blending the produced biodiesel with petrodiesel reduced the CO exhaust emission from 0.18 to 0.11 vol % and HC exhaust emission from 47 to 32 ppm. This study affords a simple, cheap, available process that can be implemented to promote and facilitate the widespread production and adoption of biodiesel as a renewable energy source.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107593"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142987106","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":"Simultaneous alkali/air activation for hierarchical pore development in biochar and its use as catalyst carrier for formic acid dehydrogenation","authors":"Huiming Li,&nbsp;Yao Gui,&nbsp;Junhuan Zhang,&nbsp;Jianfa Li","doi":"10.1016/j.biombioe.2024.107549","DOIUrl":"10.1016/j.biombioe.2024.107549","url":null,"abstract":"<div><div>Biochar provides an efficient strategy for making use of biomass residues, because it has shown to be a multifunctional material in energy and environmental applications. However, the underdeveloped porosity of biochar often makes it perform below potential. Herein, a novel activation method, namely simultaneous alkali/air activation, was tested for hierarchical pore development in biochar. The enhanced performance of the as-prepared porous carbon was evaluated by loading of palladium (Pd) for catalyzing formic acid dehydrogenation, a key reaction for the safe storage and transport of hydrogen. It was found that NaHCO₃ was more effective than KOH on mesopore development in biochar when it was activated by air together. The carbon product possessing developed hierarchical pore structure (SA_BET = 1013 m² g⁻¹, SA_meso/SA_BET = 33.0 %) was obtained at 700 °C, using NaHCO₃ as the alkali activator in a mixed air/nitrogen gas flow (30/70 by volume). The hierarchical pore structure of carbon made it a competent carrier of Pd catalyst, because the hierarchical pores not only enhanced the dispersion of Pd nanoparticles, but also served as the fast channels for the reactants to access the active sites intra catalyst particles. Therefore, the fast formic acid dehydrogenation (TOF = 156 h⁻¹) was achieved when using the Pd catalyst loaded on such a hierarchically porous carbon.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107549"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849622","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":"Microwave-assisted pyrolysis of biomass: Influence of feedstock and pyrolysis parameters on porous biochar properties","authors":"Tianhao Qiu ,&nbsp;Chengxiang Li ,&nbsp;Wenke Zhao ,&nbsp;Muhammad Yasin Naz ,&nbsp;Yaning Zhang","doi":"10.1016/j.biombioe.2024.107583","DOIUrl":"10.1016/j.biombioe.2024.107583","url":null,"abstract":"<div><div>Pyrolysis of biomass produces syngas, bio-oil and biochar, among which biochar requires low pyrolysis temperature and it usually has good adsorption ability due to its complex porous structures. In this study, microwave-assisted pyrolysis of different kinds of biomass such as rice husk, peanut shell, and corn straw to produce biochar was investigated. The yields, specific surface areas (SSA), average pore diameters, and total pore volumes of biochars produced at different pyrolysis temperatures (700, 750, 800, 850, and 900 °C), microwave powers (400, 450, 500, 550, and 600 W), and residence times (60, 90, 120, 150, and 180 min) were detailed. The biochar yields ranged in 30.76–43.28 wt%, 25.71–38.93 wt%, and 23.71–36.95 wt% for peanut shell, rice husk, and corn straw, respectively. With increase in pyrolysis temperature, microwave power or/and residence time, the yield of biochar decreased gradually and eventually became stable, while the SSA of 4.68–323.33 m²/g and total pore volume of 0.0085–0.2015 cc/g rose monotonously, and the average pore size of 2.19–16.55 nm decreased monotonously. The maximum SSA of 323.33 m²/g occurred at 900 °C, 500 W, and 120 min for corn straw. The proposed correlations for biochar pore structures and pyrolysis conditions will provide guidance for porous biochar production from biomass. Porous biochar can be widely used in soil remediation, environmental pollution control, high-performance catalyst/adsorbent research and development, etc. The accurate preparation of biochar with appropriate pore structure is of great significance to promote the efficient recovery and utilization of biomass resources.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107583"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911982","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":"Efficient transformation of starch food wastes into bio-based levulinate products over earth-abundant aluminum salts: Performances and economics","authors":"Ke-Ming Li,&nbsp;Jia-Yue Chen,&nbsp;Yao Xiao,&nbsp;Feng-Shuo Guo,&nbsp;Yao-Bing Huang,&nbsp;Qiang Lu","doi":"10.1016/j.biombioe.2024.107570","DOIUrl":"10.1016/j.biombioe.2024.107570","url":null,"abstract":"<div><div>This study presented the first example on the transformation of starch-rich food wastes (e.g. rice, potato, bread) into oxygenated chemicals, namely methyl levulinate (ML), over the cheap and earth-abundant metal salt catalysts. A variety of metal salts were systematically tested and Al₂(SO₄)₃ exhibited the best catalytic reactivity for the alcoholysis reaction, offering a 51.5 mol% yield of ML in the conversion of rice waste powder in the methanol/water mixture solvent. A series of different food wastes were successfully converted to ML with different product yields (17.3–51.5 mol%). The reaction parameters were systematically optimized to reveal their influences on the product yields. The catalyst recycling procedure was proposed to recycle and reuse the reagents involved in the system. Finally, a preliminary economic analysis of the system was also included.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107570"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886915","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":"Oxygen carrier aided combustion with copper smelter slag as bed material in a semi-commercial wood-fired circulating fluidized bed","authors":"Felicia Störner ,&nbsp;Robin Faust ,&nbsp;Pavleta Knutsson ,&nbsp;Magnus Rydén","doi":"10.1016/j.biombioe.2024.107565","DOIUrl":"10.1016/j.biombioe.2024.107565","url":null,"abstract":"<div><div>Fluidized bed combustion (FBC) is a well-established technology in Sweden for the conversion of biomass and waste-derived fuels. Recent research has shown that the process can be upgraded by using oxygen-carrying bed material, for example in the form of iron oxide-containing minerals and slags. The concept, called Oxygen Carrier Aided Combustion (OCAC), has demonstrated enhanced oxygen distribution and thermal efficiency in commercial boilers, using the iron-titanium ore ilmenite as oxygen carrier. This study demonstrates the first large-scale utilization of a commercial copper slag product (Järnsand) as oxygen carrier in a 12 MW_th circulating fluidized bed boiler. By exchanging between 21 and 100 % of the silica sand bed with Järnsand it was possible to successfully reduce the air-to-fuel ratio from 1.2 down to 1.08 with CO emissions remaining low, at concentrations of around 20 mg/nm³ at 6 % O₂. In contrast, an air-to-fuel ratio of 1.08 with silica sand bed gave a 5-min average CO concentration of 800 mg/nm³ at 6 % O₂. The NO emissions were also reduced by about 30 % with the introduction of Järnsand. For 3.5 days of the campaign, the boiler was operated with a 100 % Järnsand bed without any bed material regeneration. K was absorbed by Järnsand, and a K concentration of 3.5 wt.-% was reached. No agglomeration or increasing CO emissions were observed. K-saturation was not reached, and a longer lifetime than the studied 3.5 days is suggested. In conclusion, similar performance as ilmenite is suggested for Järnsand as an oxygen carrier in OCAC operation.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107565"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Valorization of lignocellulosic biomass forest residues in quebec via the integrated hydropyrolysis and hydroconversion (IH2) technology: A review","authors":"Aravind Ganesan,&nbsp;Olivier Rezazgui,&nbsp;Jimmy Barco Burgos,&nbsp;Patrice J. Mangin,&nbsp;Simon Barnabé","doi":"10.1016/j.biombioe.2024.107516","DOIUrl":"10.1016/j.biombioe.2024.107516","url":null,"abstract":"<div><div>Lignocellulosic biomass residues from Quebec's forests, such as branches and logging residues, can be thermochemically converted into hydrocarbons-rich renewable fuels, offering a sustainable alternative to fossil oil in transportation. Integrated Hydropyrolysis and Hydroconversion (IH²) has emerged as a promising biorefinery technology for transforming diverse biomass feedstocks into bio-oil with properties akin to petroleum, achieving approximately 45 % carbon conversion and 27 wt% bio-oil yield. Optimal conditions for catalytic fast hydropyrolysis (CFHP) include temperatures of 400–450 °C, hydrogen pressures of 20–30 bar, and biomass heating rates of 100–500 °C/min. For the catalytic hydroconversion (CHC) stage, lower temperatures of 250–400 °C with similar hydrogen pressures are beneficial. To enhance bio-oil quality and yield, feed particle sizes below 1 mm are recommended for enhanced heat transfer. While clean hydrogen for IH² could be produced from electrolysis and biomass, an alternative co-CFHP process using hydrogen-rich bio-based solvents, UEO, and waste plastics can mitigate the need for external hydrogen, high pressures, and complex setups. This can be operated with or without an optional hydrotreatment stage based on required product specifications. The results highlight some potential catalyst alternatives to TMS like TMO, TMP, TMN, and TMC that could improve deoxygenation efficiency and reduce associated challenges. Carbonaceous supports like biochars can replace conventional Al₂O₃ and achieve better performance w.r.t coking, surface functionalities, metal dispersibility, and sensitivity to deoxygenation by-products. Additionally, fluidized bed reactors are suggested for their scalability and effectiveness in facilitating consistent reactions. Overall, this study underscores the viability of IH² and identifies critical areas for further research to achieve demonstration-scale feasibility.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107516"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142776559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermo-catalytic depolymerization of lignin over Pd-based catalysts: Role of catalyst support on monoaromatics selectivity","authors":"José R. Colina ,&nbsp;Maray Ortega ,&nbsp;Jose Norambuena-Contreras ,&nbsp;Stef Ghysels ,&nbsp;Frederik Ronsse ,&nbsp;Luis E. Arteaga-Pérez","doi":"10.1016/j.biombioe.2024.107547","DOIUrl":"10.1016/j.biombioe.2024.107547","url":null,"abstract":"<div><div>The condensed structure of technical lignin presents significant challenges in converting it into valuable functionalized building blocks, such as single-ring aromatics. In this study, we explored how palladium-based catalysts influence the selectivity of monoaromatics during the fast pyrolysis depolymerization of lignin. A systematic study on the influence of the pyrolysis temperature (500 &lt; <em>T</em> &lt; 700 °C) and catalyst support nature (SiO₂, Al₂O₃ and Carbon) was carried out by analytical pyrolysis. Creosol and guaiacol were the predominant species after non-catalytic and Pd/SiO₂ catalyzed pyrolysis of Kraft lignin. However, when Pd/C and Pd/Al₂O₃ were applied, the selectivity to monoaromatics increased drastically, to 50.9 % and 34.4 %, respectively. The catalytic activity of Pd/C and Pd/Al₂O₃ was ascribed to the presence of medium and weak acid sites in the supports, which provides active sites for phenolics adsorption and deoxygenation. Additionally, metallic Pd sites activated the C-O and H₂ bonds to further assist deoxygenation reactions, thus inducing a bifunctionality to these materials. This study offers valuable insights into the bifunctional effects of supported catalyst during the thermo-catalytic depolymerization of lignin.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107547"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809105","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":"Biochar in sustainable agriculture and Climate Mitigation: Mechanisms, challenges, and applications in the circular bioeconomy","authors":"Abdul Waheed,&nbsp;Hailiang Xu,&nbsp;Xu Qiao,&nbsp;Aishajiang Aili,&nbsp;Yeernazhaer Yiremaikebayi,&nbsp;Dou Haitao,&nbsp;Murad Muhammad","doi":"10.1016/j.biombioe.2024.107531","DOIUrl":"10.1016/j.biombioe.2024.107531","url":null,"abstract":"<div><div>Biochar, a carbon-rich material produced through the pyrolysis of biomass, has gained significant attention for its potential in sustainable agriculture, environmental management, and climate change mitigation. This review provides a comprehensive synthesis of the latest research on biochar production, characterization, and its roles in enhancing soil health and agricultural productivity, focusing on novel insights and emerging applications. Biochar improves soil structure, nutrient retention, water-holding capacity, and microbial activity, benefiting degraded soils such as acidic, sandy, and nutrient-poor soils, which are prone to poor water retention and nutrient leaching. Studies have shown that biochars produced from wood and agricultural residues are particularly effective for long-term carbon sequestration and improving soil fertility. Furthermore, biochar has demonstrated significant impacts on boosting crop yields, with some studies reporting up to a 30 % increase in yields for crops grown in nutrient-poor soils. Biochar sequesters carbon for centuries, reduces greenhouse gas emissions (e.g., nitrous oxide by up to 50 %), and mitigates water contamination by adsorbing excess nutrients and heavy metals. Despite these benefits, large-scale biochar application faces challenges, including variable effectiveness across soil types and climates, high production and transport costs, and the need for standardized production methods. This review emphasizes the integration of biochar into waste management and bioenergy systems, aligning it with the principles of a circular bioeconomy. It also underscores the importance of further research to optimize production processes, assess long-term impacts on soil health and crop productivity, and explore biochar's role in enhancing resource efficiency and addressing critical agricultural and environmental challenges.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"193 ","pages":"Article 107531"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809147","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}