Biomass & Bioenergy最新文献

{"title":"Novel one-step dilute acid-assisted hydrothermal delignification using dilute HNO3 for facile high-purity cellulose extraction from oil palm fronds (OPF)","authors":"Izzudin Ibrahim ,&nbsp;Mohammed Abdillah Ahmad Farid ,&nbsp;Yoshito Andou","doi":"10.1016/j.biombioe.2025.107862","DOIUrl":"10.1016/j.biombioe.2025.107862","url":null,"abstract":"<div><div>Oil palm fronds (OPF), available in abundance, represent a promising sustainable resource, yet its utilization is hindered by the demanding process of cellulose extraction. This study introduces a cost-effective, one-step dilute acid-assisted hydrothermal method using dilute HNO₃ (0.5 M) at 120 °C. The selected conditions, with a treatment time of 30 min, resulted in cellulose extraction with a purity of 84.2 wt%, reducing lignin content from 21.8 to 9.3 wt% and hemicellulose from 31.6 to 6.4 wt%. A post-treatment alkaline rinse further increased cellulose purity to 96 wt% and crystallinity to 71.5 %. The method's applicability to other biomasses, including oil palm empty fruit bunch (OPEFB), bamboo, sisal, and shuro palm fibre, showed lignin reduction of up to 85 % and cellulose yields between 78 and 85 %. Thermal stability analysis via TGA indicated a decomposition temperature of 350 °C, and XRD analysis showed a crystallinity index increase from 45 to 62 %. This facile and sustainable process, using only HNO₃ and water, marks a significant step forward in biomass valorization, providing environmental benefits by minimizing chemical use for industrial-scale lignocellulosic waste utilization.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107862"},"PeriodicalIF":5.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800319","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":"Waste to hydrogen: Steam gasification of municipal solid wastes with carbon capture for enhanced hydrogen production","authors":"Akshay V. Bagde,&nbsp;Manosh C. Paul","doi":"10.1016/j.biombioe.2025.107855","DOIUrl":"10.1016/j.biombioe.2025.107855","url":null,"abstract":"<div><div>The research focuses on enhancing hydrogen production using a blend of municipal solid waste (MSW) with Biomass and mixed plastic waste (MPW) under the Bioenergy with Carbon Capture, Utilisation, and Storage (BECCUS) concept. The key challenges include optimising the feedstock blends and gasification process parameters to maximise hydrogen yield and carbon dioxide capture. This study introduces a novel approach that employs sorption-enhanced gasification and a high-temperature regenerator reactor. Using this method, syngas streams with high hydrogen contents of up to 93 mol% and 66 mol% were produced, respectively. Thermodynamic simulations with Aspen Plus® validated the integrated system for achieving high-purity hydrogen (99.99 mol%) and effective carbon dioxide isolation. The system produced 70.33 <span><math><mrow><msub><mtext>mol</mtext><msub><mi>H</mi><mn>2</mn></msub></msub><mo>/</mo><msub><mtext>kg</mtext><mtext>feed</mtext></msub></mrow></math></span> when using steam as a gasifying agent while 37.95 <span><math><mrow><msub><mtext>mol</mtext><msub><mi>H</mi><mn>2</mn></msub></msub><mo>/</mo><msub><mtext>kg</mtext><mtext>feed</mtext></msub></mrow></math></span> was produced under air gasification conditions. Case I employed a mixture of MSW and wood residue at a ratio of 1:1.25, with steam and calcium oxide added at 2:1 and 0.92:1, respectively, resulting in 68.80 <span><math><mrow><msub><mtext>mol</mtext><msub><mi>H</mi><mn>2</mn></msub></msub><mo>/</mo><msub><mtext>kg</mtext><mtext>feed</mtext></msub></mrow></math></span> and a CO₂ capture efficiency of 92 %. Case II utilised MSW and MPW at a 1:1 ratio, with steam and calcium oxide at 2:1 and 0.4:1, respectively, producing 100.17 <span><math><mrow><msub><mtext>mol</mtext><msub><mi>H</mi><mn>2</mn></msub></msub><mo>/</mo><msub><mtext>kg</mtext><mtext>feed</mtext></msub></mrow></math></span> and achieving a 90.09 % CO₂ capture efficiency. The optimised parameters significantly improve hydrogen yield and carbon capture, offering valuable insights for BECCUS applications.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107855"},"PeriodicalIF":5.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799835","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":"Reaction kinetics and process simulation for biodiesel production from rapeseed oil via supercritical transesterification","authors":"Yingzhe Yu ,&nbsp;Qian Ma ,&nbsp;Mingxia Xie ,&nbsp;Minhua Zhang","doi":"10.1016/j.biombioe.2025.107851","DOIUrl":"10.1016/j.biombioe.2025.107851","url":null,"abstract":"<div><div>As a renewable and clean energy, biodiesel has attracted increasing attention from countries worldwide. The preparation of biodiesel by supercritical transesterification has the advantages of a fast reaction rate, high conversion rate, easy product separation and purification, and simple process, and has been widely studied. This paper uses triglyceride as a rapeseed oil model compound to study the transesterification reaction kinetics between triglyceride and supercritical methanol. The reaction is a three-step reversible reaction. The experimental results show that the third step of the reaction is the control step. The reaction rate constant of each step of the reaction was obtained using the parameter estimation method. The order of the reaction rate constant is <em>k</em>_<em>2</em><em>&gt;k</em>_<em>1</em><em>&gt;k</em>_<em>3</em>. On this basis, the chemical process simulation software PRO/II was used to design the process flow of the supercritical methanol method for preparing biodiesel. The group contribution model UNIFAC equation was used to estimate the relevant physical property parameters. In the process simulation, a combination of NRTL and SRKM was selected. The thermodynamic method determines the appropriate operating parameters of each unit module and obtains a reasonable process flow. All product indicators meet the requirements, which provides a basis for the industrialization of supercritical methanol production of biodiesel.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107851"},"PeriodicalIF":5.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799839","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":"Thermal degradation of peeled cotton stalk with thermogravimetry/fourier transform infrared analysis and shuffled complex evolution algorithm","authors":"Qian Xie ,&nbsp;Fahang Liu ,&nbsp;Yu Zhong ,&nbsp;Changhai Li ,&nbsp;Yanming Ding","doi":"10.1016/j.biombioe.2025.107853","DOIUrl":"10.1016/j.biombioe.2025.107853","url":null,"abstract":"<div><div>Cotton is one of the most important crops globally and is widely planted. This study systematically investigated the pyrolysis characteristics and product distribution of peeled cotton stalks using thermogravimetry/Fourier transform infrared analysis (TG-FTIR) at heating rates ranging from 5 to 60 K/min. Kinetic parameters were estimated using the two model-free methods, and the results revealed that the activation energy for pyrolysis varied between 182.97 and 213.11 kJ/mol. The three-component parallel reaction model, combined with the Shuffled Complex Evolution algorithm, was applied to perform inverse modeling of the experimental data. The corresponding exact kinetic parameters for independent hemicellulose, cellulose and lignin were obtained. The results revealed that the predicted values based on the optimized kinetic parameters were in good agreement with the experimental data. Ultimately, the blind prediction of the experimental curves at extra heating rates further confirmed the precision and suitability of the optimized kinetic parameters. The FTIR analysis indicated that the absorption spectra related to the peaks remained largely consistent at various heating rates. The evolution patterns of the gas components aligned with the trends observed in the derivative thermogravimetric curves, with the produced gases in the following order: CO₂, formaldehyde, methanol, CO, and finally methane.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783869","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":"Sustainable biodiesel synthesis using bamboo leaves ash doped with Anser cygnoides eggshell derived CaO (BLA@SiO2-CaO) green catalyst: Characterization and optimization study","authors":"Mohd. Rakimuddin Khan,&nbsp;Huirem Neeranjan Singh,&nbsp;Wangkhem Robinson Singh","doi":"10.1016/j.biombioe.2025.107815","DOIUrl":"10.1016/j.biombioe.2025.107815","url":null,"abstract":"<div><div>The increasing demand for sustainable and renewable energy sources has led to significant research in biodiesel production. This study explores the synthesis of castor biodiesel using a novel bamboo leaves ash (BLA@SiO₂) doped with swan goose (<em>Anser cygnoides</em>) eggshell derived CaO (BLA@SiO₂-CaO) as green catalyst. <em>Anser cygnoides</em> eggshells were calcinated at 900°C for 3 h, and doped with (BLA@SiO₂) via wet impregnation method at a mixing ratio of BLA@SiO₂:CaO – 1:2, 1:3, and 1:4 wt%. The catalysts were characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and energy dispersive X-ray to determine their structural and morphological properties. Box-Behnken design-response surface methodology was employed for optimizing biodiesel production process with four input factors viz. methanol: oil molar ratio, catalyst concentration, reaction temperature and reaction time. Results indicated that BLA@SiO₂-CaO catalyst exhibited excellent catalytic activity producing maximum biodiesel yield of 96.59 <span><math><mrow><mo>±</mo><mn>0</mn><mo>.</mo><mn>95</mn></mrow></math></span>% under the optimal conditions of 11.49:1 methanol to oil ratio, 5.27 wt% catalyst concentration, 60.24°C reaction temperature, and 1.54 h reaction time. The properties of biodiesel, including acid value (0.48 mg KOH/g), density (0.87 g/cm³), calorific value (40.5 MJ/kg), flash point (166°C), ester content (96.9 wt%), and kinematic viscosity (4.7 mm²/s) are found to be within the ASTM-D6751 and EN 14214 standard limits. The synthesized BLA@SiO₂-CaO catalyst could be reused for up to seven cycles with yield above 84.2 <span><math><mrow><mo>±</mo><mn>1</mn><mo>.</mo><mn>1</mn></mrow></math></span>%. This study highlights the potential of utilizing waste materials like bamboo leaves ash and swan goose eggshells as a cost-effective and eco-friendly catalyst in biodiesel production.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107815"},"PeriodicalIF":5.8,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777658","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":"Unveiling the efficacy of TiO2-mediated calcareous nanocatalyst towards cost-effective biodiesel synthesis","authors":"Rashid Imran Ahmad Khan ,&nbsp;Rhithuparna D. ,&nbsp;Abdul Razzaq Khan ,&nbsp;Sadaf Ahmad ,&nbsp;Samuel Lalthazuala Rokhum ,&nbsp;Gopinath Halder","doi":"10.1016/j.biombioe.2025.107852","DOIUrl":"10.1016/j.biombioe.2025.107852","url":null,"abstract":"<div><div>The global energy matrix, predominantly fuelled by fossil sources constituting 85 % of consumption, confronts critical ecological ramifications, including prodigious greenhouse gas emissions precipitating climate change and pervasive pollution. This probe elucidates the mechanistic proficiency and economic viability of TiO₂-augmented CaO-derived nano-catalysts for biodiesel production from <em>Brassica napus</em> oil. Synthesized via sol-gel techniques with variable precursor concentrations and calcination temperatures, these nano-catalysts were rigorously characterized using UV spectroscopy, FTIR, SEM, XRD, zeta potential, EDAX, and particle size analysis. The utmost biodiesel yield of 95.87 % was attained utilizing response surface methodology under a 2.25-h reaction interval with a 5 % catalyst weight, a 1:12 oil-to-methanol ratio, and a temperature of 60 °C. Thermodynamic and kinetic examinations revealed the transesterification reaction to be endothermic following pseudo-first-order kinetics. The catalyst exhibited notable reusability, maintaining a conversion efficiency of 76.86 % after five consecutive cycles. The characteristics of the produced biodiesel met the required standards, with production costs calculated at $0.78 per litre and $7.0 per kilogram of TiO₂-CaO catalyst, underscoring its economic feasibility. This research accentuates the TiO₂-CaO nanocatalyst's potential in mitigating the environmental and economic detriments associated with fossil fuel dependency. Finally, the study provided future perspectives by identifying gaps highlighted in recent bibliometric analyses of the reported research.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107852"},"PeriodicalIF":5.8,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777657","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":"Five-year impacts of biomass crop monoculture on soil enzyme activity, nitrogen pools, and other soil health indicators","authors":"Nevien Elhawat ,&nbsp;Éva Domokos-Szabolcsy ,&nbsp;Szilvia Veres ,&nbsp;Miklós G. Fári ,&nbsp;Tarek Alshaal","doi":"10.1016/j.biombioe.2025.107856","DOIUrl":"10.1016/j.biombioe.2025.107856","url":null,"abstract":"<div><div>Soil health and nitrogen cycling are critical for sustainable biomass production, yet the long-term effects of monoculture biomass cropping on these factors remain underexplored. This study examines the five-year monoculture cultivation effects of giant reed (<em>Arundo donax</em> L.), miscanthus (<em>Miscanthus</em> x <em>giganteus</em>), and sida (<em>Sida hermaphrodita</em>) on soil biochemical properties, nitrogen species, and biomass yield stability under field conditions. Soil samples collected in autumn 2014 and spring 2015 revealed significant seasonal and crop-specific impacts on soil health indicators. Giant reed cultivation resulted in the highest urease activity in autumn (346 μg NH₄⁺ g⁻¹ soil h⁻¹), supporting enhanced nitrogen cycling, while miscanthus increased soil organic matter (SOM) to 4.77 % in spring, aiding carbon sequestration. Sida contributed to the highest dehydrogenase activity, indicating robust microbial activity, alongside increased organic nitrogen (4.92 mg kg⁻¹) and total nitrogen levels (17.0 mg kg⁻¹) in spring. Soil respiration and electrical conductivity varied by season, with pH values slightly higher in spring. Across all crops, nitrogen forms (nitrate, ammonium, and organic nitrogen) were generally higher in spring than autumn, highlighting seasonal dynamics. Yield stability was greatest in giant reed (2.01 kg m⁻² on average), while miscanthus and sida averaged 1.62 and 0.86 kg m⁻², respectively. The findings underscore these crops' potential for sustainable biomass production and improved soil health in low-input systems.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107856"},"PeriodicalIF":5.8,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777655","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":"Hydrothermal carbonization of swine manure in a continuous flow reactor pilot plant with process water recycling","authors":"R.P. Ipiales ,&nbsp;E. Diaz ,&nbsp;M.A. de la Rubia ,&nbsp;J.J. Rodriguez ,&nbsp;A.F. Mohedano","doi":"10.1016/j.biombioe.2025.107854","DOIUrl":"10.1016/j.biombioe.2025.107854","url":null,"abstract":"<div><div>This paper deals with hydrothermal carbonization (HTC) of swine manure in a pilot plant setup operating in continuous mode. Two temperatures (210 °C and 250 °C) were tested and recycling of the liquid fraction was studied to improve the quality of the resulting hydrochar. The hydrochars obtained at 210 °C fulfill the criteria to be used as solid biofuels (ISO 17225–8:2023). Increasing the reaction temperature led to a dramatic reduction of hydrochar yield (from 50 to 20 %) in conventional HTC (with tap water), accompanied by a moderate improvement of higher heating value (HHV, 18.2–20.4 MJ/kg), which decreased the energy yield (from 52.2 % to 23.8 %). Process water recycling significantly improved the hydrochar yield, reaching more than 80 % and 55 % at 210 °C and 250 °C, respectively, because of the formation of secondary hydrochar. C content and HHV also increased, giving rise to substantially higher energy recovery, which surpassed 93 % after four recycling tests at 210 °C. Fouling and alkali indexes of hydrochars showed much lower values than those of the feedstock mainly attributed to the solubilization of Na and K. At 210 °C, process water recycling favored a further reduction of those indexes. N and P were largely transferred to the liquid fraction, particularly the latter. Zn and Cu were, by far, the most abundant heavy metals in hydrochars, with a Zn content being slightly above the value established in Decision (EU) 2022/1244 for their application as a soil amendment.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107854"},"PeriodicalIF":5.8,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777656","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":"Bio-jet fuels from photosynthetic microorganisms: A focus on downstream processes","authors":"Giovanni Antonio Lutzu ,&nbsp;Luca Usai ,&nbsp;Adriana Ciurli ,&nbsp;Carolina Chiellini ,&nbsp;Fabrizio Di Caprio ,&nbsp;Francesca Pagnanelli ,&nbsp;Ali Parsaeimehr ,&nbsp;Ilze Malina ,&nbsp;Kristaps Malins ,&nbsp;Bartolomeo Cosenza ,&nbsp;Massimiliano Fabbricino ,&nbsp;Alessandra Cesaro ,&nbsp;Grazia Policastro ,&nbsp;Giacomo Cao ,&nbsp;Alessandro Concas","doi":"10.1016/j.biombioe.2025.107833","DOIUrl":"10.1016/j.biombioe.2025.107833","url":null,"abstract":"<div><div>The aviation industry is a \"hard to electrify\" sector with limited possibilities for alternative fuels such as green hydrogen. Therefore, there is a call for sustainable fuel alternatives which is driving intensive research into bio-jet fuels (BJF) that could be used in aviation, without revamping the aircraft fleets and the aviation infrastructures. This review evaluates the potential of photosynthetic microorganisms, focusing on the most challenging downstream processes, i.e. bio-oil production and its catalytic upgrade. The main bottlenecks of such processes are identified, and the most recent solutions, offered to overcome them, are critically reviewed. Finally, a statistical analysis of the key characteristics of current BJF derived from microalgae and cyanobacteria is presented, along with a discussion on their suitability for the aviation industry and the primary areas for improvement.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"198 ","pages":"Article 107833"},"PeriodicalIF":5.8,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767540","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":"Thermochemical conversion of bioplastics: Evolved gas analysis and kinetics factors for polylactic acid (PLA) - waste biomass mixture","authors":"Muhammad Rabah,&nbsp;Labeeb Ali,&nbsp;Mohamed Shafi Kuttiyathil,&nbsp;Mohammednoor Altarawneh","doi":"10.1016/j.biombioe.2025.107848","DOIUrl":"10.1016/j.biombioe.2025.107848","url":null,"abstract":"<div><div>Polylactic acid (PLA) is the highest produced bioplastic globally but facing end-life disposal challenges. Pyrolysis proves to be a viable option, but the recovered product profile is not desirable in terms of quality and value. Date Pits (DP), a waste byproduct chemically rich with lignocellulosic fragments, can provide unique carbon-rich precursors which are highly desirable in the pyrolysis process. This study aims to investigate the synergistic effect of DP addition on PLA pyrolysis products. Thermogravimetric data demonstrates that PLA mixing with DP promotes char formation, initiates degradation at lower temperatures, and decreases the peak decomposition temperature (T_p) from 362 °C to 343 °C. Primary pyrolysis occurs in the range of (200–400 °C) with 75.5 % weight loss and low heating rate shifts T_p toward lower temperatures by averting the development of the thermal lag effect. Chemical structure analysis through FTIR shows that DP addition promotes controlled volatile release through PLA depolymerization hence yielding more uniformed and distinguished peaks for hydroxyl, phenols, and ester-containing groups. Moreover, it promoted free radical reactions that enhanced lactide recovery by restricting aldehyde formation. GCMS profiling indicates that pure PLA pyrolysis majorly yieldes lactide (3,6-Dimethyl-1,4-dioxane-2,5-dione). While the copyrolysis with date pits diversifies this product profile with the production of hydrocarbons (heptane and decane), aromatics (xylene, toluene and styrene), and furans which are highly valued in biorefineries, as drop-in fuels and in petrochemical industries. Kinetic analysis shows that the PLA/DP co-pyrolysis mixture reduces activation energies (E_a) by 18 % and also reduces the thermodynamic parameters.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"197 ","pages":"Article 107848"},"PeriodicalIF":5.8,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759749","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}