Biomass & Bioenergy最新文献

{"title":"Process optimization for ammonium removal from municipal food waste treatment plant liquid digestate using natural rocks and volcanic ash","authors":"Diana Victoria Arellano-Yasaca, Chen-Yeon Chu, Iván Ríos-García, Wan Nazihah Liyana Wan Jusoh","doi":"10.1016/j.biombioe.2024.107581","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107581","url":null,"abstract":"This study investigates the adsorption of ammonium (NH<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">+</ce:sup>) from the liquid fraction of food waste digestate. Six natural rocks and volcanic ash were used as adsorbents. X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS) were employed to analyze mineral composition and surface morphology before and after adsorption. Results indicated a significant ammonium reduction of up to 64 %, with an adsorption capacity of 93 mg L<ce:sup loc=\"post\">−1</ce:sup> at equilibrium within 50 min. After adsorption, changes in the XRD patterns and mineral composition confirmed transformations in the adsorbents, SEM revealed rough and irregular surface morphologies, likely attributed to the uptake of NH<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">+</ce:sup>, and EDS analysis showed a decrease in the concentration of exchangeable cations, which was associated with increased nitrogen levels in each rock sample. These findings suggest that the primary mechanism of these materials for NH<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">+</ce:sup> adsorption is cation exchange. Additionally, generated models for nitrogen removal efficiency (NRE) and adsorption capacity (AC) concluded that factors such as pH, adsorbent dosage, and temperature also influenced adsorption efficiency. Triplicate experimental runs and ANOVA confirmed the models' predictive accuracy, yielding an R<ce:sup loc=\"post\">2</ce:sup> of 0.9955, a standard deviation of 1.02, and a minimal variability of 2.63 % for NRE. Optimal conditions were identified at a pH of 6, a dosage of 0.32 g, and a temperature of 23 °C, achieving an NRE of 62 % and an AC of 159 mg g<ce:sup loc=\"post\">−1</ce:sup>. Efficient ammonium adsorption by these natural adsorbents shows promise for practical wastewater treatment and environmental remediation.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"25 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911977","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, Chengxiang Li, Wenke Zhao, Muhammad Yasin Naz, Yaning Zhang","doi":"10.1016/j.biombioe.2024.107583","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107583","url":null,"abstract":"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 m<ce:sup loc=\"post\">2</ce:sup>/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 m<ce:sup loc=\"post\">2</ce:sup>/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.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"255 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-01-01","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":"Artificial Neural Network- Response Surface Methodology based multi-parametric optimization and modelling of biolipid production from Aspergillus flavus","authors":"Swathe Sriee A.E, Raja Das K, Rameshpathy Manian, Venkatkumar Shanmugam, Vijayalakshmi Shankar","doi":"10.1016/j.biombioe.2024.107573","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107573","url":null,"abstract":"Microbial lipids, produced by oleaginous microorganisms, are emerging as sustainable feedstocks for biodiesel and other industrial applications. In this study, biolipid production from <ce:italic>Aspergillus flavus</ce:italic> was systematically optimized through cultivation studies, lipid extraction, and quantification, combined with classical and advanced modeling approaches. Key nutrients such as carbon sources, nitrogen sources, amino acids and metal salts were analyzed for their influence on lipid production. Optimization studies were performed using Response Surface Methodology (RSM) and Artificial Neural Network (ANN) models. RSM, employing Plackett-Burman design and Central Composite Design (CCD), identified critical parameters (pH, glucose, and peptone) affecting lipid yield, achieving high predictive accuracy with an R<ce:sup loc=\"post\">2</ce:sup> value of 0.9911. The ANN model, with a configuration of 17 hidden neurons, outperformed RSM, yielding correlation coefficients (r) of 0.999 for training and validation and 0.981 for testing, along with lower Mean Absolute Error (MAE) and Root Mean Squared Error (RMSE). Further, 3D contour plots and sensitivity analysis elucidated the interactive and non-linear effects of key parameters. This integrated approach demonstrates the superiority of combining statistical (RSM) and computational (ANN) tools for bioprocess optimization. The study highlights <ce:italic>A. flavus</ce:italic> as a promising microbial resource for sustainable lipid production, providing a scalable framework for industrial biodiesel manufacturing.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"68 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911983","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":"The promoting effect of magnesium on NiMgLaZr catalysts for biogas upgrading to syngas via a tri-reforming process","authors":"Santiago Veiga, Mariano Romero, Darío Segobia, Carlos Apesteguía, Juan Bussi","doi":"10.1016/j.biombioe.2024.107588","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107588","url":null,"abstract":"The effect of partial substitution of lanthanum by magnesium on the catalytic activity of the Ni-La<ce:inf loc=\"post\">2</ce:inf>Zr<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">7</ce:inf> catalyst in the biogas tri-reforming reaction was studied. Four catalysts, Ni-La<ce:inf loc=\"post\">2-x</ce:inf>Mg<ce:inf loc=\"post\">x</ce:inf>Zr<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">7-δ</ce:inf> (x = 0.25, 0.5, 0.75, and 1), were prepared using a modified polymeric precursor method, characterized using several techniques, and evaluated at 800 °C with a sub-stoichiometric molar feed composition of CH<ce:inf loc=\"post\">4</ce:inf>/CO<ce:inf loc=\"post\">2</ce:inf>/H<ce:inf loc=\"post\">2</ce:inf>O/O<ce:inf loc=\"post\">2</ce:inf> = 1/0.33/0.33/0.08. The catalyst with x = 0.5 showed the best performance, which is attributed to its optimum properties of nickel particle size, metal-support interactions, and basicity. A stability test was performed with this catalyst using a molar feed composition of CH<ce:inf loc=\"post\">4</ce:inf>/CO<ce:inf loc=\"post\">2</ce:inf>/H<ce:inf loc=\"post\">2</ce:inf>O/O<ce:inf loc=\"post\">2</ce:inf> = 1/0.33/0.67/0.08, previously optimized to obtain a synthesis gas with a H<ce:inf loc=\"post\">2</ce:inf>/CO ≈ 2 molar ratio for 100 h, and compared with a commercial steam reforming catalyst. The catalyst with x = 0.5 exhibited higher CH<ce:inf loc=\"post\">4</ce:inf> and CO<ce:inf loc=\"post\">2</ce:inf> conversions, a lower amount of carbon deposited, and a lower degree of nickel particle sintering.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"32 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911984","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":"Enhancing transesterification of used soybean frying oil using CaO.ZnO (10 %) NiO (8 %) catalyst: Response surface optimization and characterization","authors":"Bouthina Dendouga, Adel Sakri, Cherifa Bouremel, Yasser Boudaoud, Mohammed Berkani","doi":"10.1016/j.biombioe.2024.107582","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107582","url":null,"abstract":"Biodiesel production from used oils could be considered as a sustainable replacement for fossil fuels. But efficiency often comes down to the type of catalyst used. This study evaluates a novel heterogeneous catalyst, CaO/ZnO (10 %)/NiO (8 %), developed using the solid-state method which uniquely combines ZnO and NiO to enhance catalytic activity by minimizing the amount of catalyst and alcohol required. The research seeks to optimize biodiesel production conditions using this catalyst and evaluate its effectiveness compared to conventional methods. Box-Behnken Design (BBD) was utilized to optimize the process of the catalytic transesterification, while the catalyst was characterized using XRD, SEM, FTIR, and BET techniques to assess its structure, morphology, and surface properties. A model was designed to investigate the influence of transesterification reaction variables including: oil molar ratio (3:1 to 12:1), reaction temperature (50–70 °C), catalyst weight (1–3 % by weight) and Reaction time (3 h–5 h) on the model response (biodiesel yield). The results obtained indicated an optimal biodiesel yield under the conditions of an oil molar ratio of 8.18:1, catalyst weight of 1.95 wt%, reaction temperature of 62.5 °C, and reaction time of 4.18 h. Gas chromatography-mass spectrometry (GC-MS) analysis identified the main types of fatty acids in used soybean frying oil methyl ester SFOME, namely hexadecanoic acid methyl ester (C16:0), 9,12-Octadecadienoic acid (Z,Z)-, methyl ester (C18:2); 9-Octadecenoic acid, methyl ester, (E)- (C18:1) with retention times 38.787, 44.286 and 44.588 min, respectively.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"19 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911986","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":"High-value products from chickpea residues by thermal pyrolysis and its environmental impacts","authors":"Gabriel Imwinkelried, Luciana Bonetto, Clara Saux, María B. Blanco","doi":"10.1016/j.biombioe.2024.107584","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107584","url":null,"abstract":"High value products could be obtained from chickpea residues (CR) by thermal pyrolysis. Biomass was previously characterized in terms of chemical composition and thermal behavior by elemental analysis, infrared spectroscopy (FTIR) and thermogravimetric studies. From temperature effect on products, 500 °C showed the highest yield to bio-oil (44 wt%). While higher temperatures promoted gas emissions from secondary cracking reactions. At this temperature, hydrocarbons, furans and alcohols, considered as desirable molecules, were improved in the liquid. From them, 2,5-dimethylfuran (DMF) showed an important production. This compound is considered a second-generation biofuel. In the gases, CO<ce:inf loc=\"post\">2</ce:inf> was the most emitted compound at this temperature, followed by CO from the thermal decomposition of cellulose and hemicellulose. On the other hand, CH<ce:inf loc=\"post\">4</ce:inf> emission is caused by the degradation of lignin and its concentration increases with temperature. In addition, volatile organic compounds (VOCs) in the gas phase, including toluene, 2-methylbutanal, 3-methylbutanal, 2-methylfuran, octane, 2-octene, dimethyl disulfide and 4-methylpentanenitrile, were identified under the experimental conditions in this study. The solid product, bio-char, shows useful properties including a Higher Heating Value (HHV) of 19.19 MJ/kg and a functional composition analyzed by FTIR and X-ray photoelectron spectroscopy (XPS) with a higher proportion of non-oxygenated groups. It could be considered for energy production, soil amendment and water or air treatment. Its highest yield (43 wt%) was obtained at 400 °C. Therefore, the three reaction products of CR pyrolysis reported several value-added compounds from renewable sources of great interest for industrial and chemical purposes.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"14 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911985","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":"Evaluating the impact of pre-carbonization on activated carbon production from animal-origin precursors for supercapacitor electrode applications","authors":"Diego Ramón Lobato-Peralta, Jude A. Okolie, Henry O. Orugba, D.M. Arias, P.J. Sebastian, Patrick U. Okoye","doi":"10.1016/j.biombioe.2024.107574","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107574","url":null,"abstract":"This study investigates the effect of pre-carbonization temperature on the energy storage properties of activated carbons derived from animal-origin precursors, specifically for application as supercapacitor electrodes. The objective was to develop materials with enhanced electrochemical performance. Pig hair, an abundant and sustainable carbon source, was utilized to synthesize a series of carbons with hierarchical porosity. The process involved pre-carbonization at temperatures of 350, 400, 450, and 500 °C, followed by chemical activation at 800 °C using potassium hydroxide (KOH) at a biomass-to-KOH ratio of 1:3. The resulting carbons exhibited a disordered morphology with a high surface area, reaching up to 1002 m<ce:sup loc=\"post\">2</ce:sup>/g, predominantly composed of micro- and mesopores. These structural features facilitated energy storage primarily through electric double-layer capacitance rather than faradaic processes. Detailed electrochemical testing revealed a clear dependence on pre-carbonization temperature, with electrode performance ranking in the order of 500 °C &gt; 450 °C &gt; 350 °C &gt; 400 °C. This work underscores the critical role of pre-carbonization temperature in tailoring the structural and electrochemical properties of activated carbons derived from animal-based precursors. By systematically exploring this parameter, the study provides valuable insights into the design of sustainable, high-performance materials for energy storage, contributing to the broader development of eco-friendly energy solutions.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"337 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911987","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":"Synthetic efforts towards the phenyl glycosidic class of lignin-carbohydrate complex models","authors":"Gary N. Sheldrake, Niamh M. Curran, Christopher W.J. Murnaghan","doi":"10.1016/j.biombioe.2024.107555","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107555","url":null,"abstract":"Within biomass as a whole, the linkages which are present have been largely identified and elucidated, one of the key types off linkages and functionalities which have been identified are lignin-carbohydrate complexes (LCC). These are the major bonding patterns found in biomass between the carbohydrate (cellulose &amp; hemicellulose) and lignin functionalities from extracted portions of biomass. One of the main bonding patterns within LCCs is phenyl glycosidic, where the C1 of the carbohydrate is bonded through an ether bond to an aromatic ring. The synthesis of such compounds which represent extracted portions of biomass have a carbohydrate portion and therefore will allow for water solubility and negates the need for organic solvents when probing depolymerisation studies.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"39 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911991","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":"CO2 reforming of glycerol on Ni/Al2O3 catalyst: Influence of doping of alkaline earth metals (Mg, Ca, Sr, and Ba) to support","authors":"Zahra Memarian, Fereshteh Meshkani","doi":"10.1016/j.biombioe.2024.107578","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107578","url":null,"abstract":"The catalytic performance of nickel catalysts affixed on MeO.Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> (Me = Mg, Ca, Sr, Ba) was studied to reform glycerol with CO<ce:inf loc=\"post\">2</ce:inf>. The catalyst carriers were fabricated via a solid-state method, and the Ni-prepared catalyst characterization was carried out using XRD, BET, H<ce:inf loc=\"post\">2</ce:inf>-TPR, CO<ce:inf loc=\"post\">2</ce:inf>-TPD, TPO, and SEM techniques. The results indicated that adding alkaline earth metal oxides to the Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> carrier improved the catalytic performance. Among the catalysts studied, the 10%Ni/BaO.Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> exhibited higher glycerol conversion equal to 51 % at 750 °C and GHSV of 54000 ml (g h)<ce:sup loc=\"post\">−1</ce:sup>. This is due to the increase in carriers' basic sites. Also, Ni/BaO.Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> catalysts with various BaO/Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> molar ratios were studied. The 10%Ni/1BaO.Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> catalyst with BaO/Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> ratio of 1 demonstrated a stable conversion at about 50 % during 25h at 750 °C without any decline in glycerol conversion. The CO<ce:inf loc=\"post\">2</ce:inf>-TPD also confirmed the increased basic strong sites of the samples with increasing BaO/Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> molar ratios. The outcomes also illustrated that the product yield peaked at approximately 49 % for H<ce:inf loc=\"post\">2</ce:inf> and 71 % for CO when the BaO/Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> ratio was set to 1.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"27 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911988","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":"Synthesis of oxygenated fuel additive solketal through catalytic acetalization of glycerol with acetone using HPMo/AlTUD-1","authors":"Rupak Kumar Singh, Vijayalakshmi Gosu, Verraboina Subbaramaiah","doi":"10.1016/j.biombioe.2024.107553","DOIUrl":"https://doi.org/10.1016/j.biombioe.2024.107553","url":null,"abstract":"The increase in global energy demand and environmental concerns have positioned biodiesel as a sustainable alternative to fossil fuels. However, biodiesel production generates glycerol as a byproduct, which cannot be used as fuel due to its high viscosity, density, and immiscibility with diesel. Thus, glycerol valorisation into high-value derivatives, such as solketal, as a fuel additive offers a promising solution to enhance the economic sustainability of biodiesel production and meet the biofuel blending mandates. Therefore, this approach addresses waste management challenges and sustainability of the biodiesel industry. In the present study, phosphomolybdic acid (HPMo) dispersed on aluminum (Al) incorporated mesoporous silica (AlTUD-1) catalyst was synthesized through the sol-gel technique and tested the catalytic performance for the acetalization of glycerol to the solketal. Characterization studies revealed that molybdenum was successfully loaded onto the mesoporous silica framework without noticeable modification of the silica mesoporous structure. Furthermore, after incorporation of HPMo on AlTUD-1, the structural properties such as surface area, pore diameter, and acid sites was altered from 421 m<ce:sup loc=\"post\">2</ce:sup>/g, 8.84 nm, and 0.245 mmol/g to 241 m<ce:sup loc=\"post\">2</ce:sup>/g, 12.39 nm, and 0.570 mmol/g, respectively. The synthesized catalyst facilitated the catalytic acetalization of glycerol to solketal. The 5 wt% HPMo/AlTUD-1 catalyst showed potential catalytic activity for the acetalization of glycerol to solketal, and achieved a maximum glycerol conversion of 78 %, with a solketal yield of 72 %, and selectivity of 94 % under optimized reaction conditions such as catalyst dose 10 wt% of glycerol, glycerol to acetone molar ratio 1:6, reaction temperature 333 K, and reaction time 3 h. A feasibility study designated that more than 60 % conversion was maintained over four regeneration cycles. The kinetic study revealed that the acetalization of glycerol to solketal requires an activation energy of 51.7 kJ/mol.","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"26 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911995","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}