Biomass & Bioenergy最新文献_第4页

Enhanced conversion of CO2 to aromatics over spinel Mg3-XCrXO4 coupled HZSM-11 nanosheets bifunctional catalyst 尖晶石m_3 - xcrxo4偶联HZSM-11纳米片双功能催化剂增强CO2向芳烃的转化

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-03 DOI: 10.1016/j.biombioe.2025.107946

Hui Hou , Jingang Yao , Fuli Yang , Hongqing Ma , Guiying Xu

{"title":"Enhanced conversion of CO2 to aromatics over spinel Mg3-XCrXO4 coupled HZSM-11 nanosheets bifunctional catalyst","authors":"Hui Hou , Jingang Yao , Fuli Yang , Hongqing Ma , Guiying Xu","doi":"10.1016/j.biombioe.2025.107946","DOIUrl":"10.1016/j.biombioe.2025.107946","url":null,"abstract":"<div><div>CO<sub>2</sub> and green hydrogen for aromatics production are effective methods to mitigate CO<sub>2</sub> emissions. Herein, Mg<sub>3-X</sub>Cr<sub>X</sub>O<sub>4</sub> spinel oxide was constructed via co-precipitation of Mg and Cr, followed by physical mixing with HZSM-11 to form a metal oxide-zeolite (OX-ZEO) bifunctional catalyst. The catalytic performance of this system in CO<sub>2</sub> aromatization was systematically evaluated. Notably, the designed catalysts followed a methanol-mediated pathway, overcoming limitations of the Anderson-Schulze-Flory distribution in aromatic hydrocarbon products. At varying Mg/Cr molar ratios, MgCr<sub>2</sub>O<sub>4</sub>/HZSM-11 exhibited the highest single-pass CO<sub>2</sub> conversion of 19.2 % and the highest aromatic selectivity of 75.2 % (excluding CO). Additionally, the optimal reaction conditions were determined for MgCr<sub>2</sub>O<sub>4</sub>/HZSM-11, achieving an excellent aromatic selectivity of 82.4 % and a CO<sub>2</sub> conversion of 22.6 % at 320 °C, a gas hourly space velocity (GHSV) of 1200 mL·gat<sup>−1</sup>·h<sup>−1</sup> and a pressure of 3.5 MPa. After 100 h, the MgCr<sub>2</sub>O<sub>4</sub>/HZSM-11 tandem catalyst maintained substantial catalytic activity, with aromatic selectivity and CO<sub>2</sub> conversion of 79.3 % and 21.1 %, respectively. This strategy offers valuable insights for designing OX-ZEO bifunctional catalysts.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107946"},"PeriodicalIF":5.8,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899686","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}

引用次数: 0

Sustainable biodiesel production: Forecasting agricultural waste utilization in Türkiye's oilseed industry 可持续的生物柴油生产：预测<s:2>基耶油籽工业的农业废弃物利用

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-03 DOI: 10.1016/j.biombioe.2025.107953

Mehmet Melikoglu

{"title":"Sustainable biodiesel production: Forecasting agricultural waste utilization in Türkiye's oilseed industry","authors":"Mehmet Melikoglu","doi":"10.1016/j.biombioe.2025.107953","DOIUrl":"10.1016/j.biombioe.2025.107953","url":null,"abstract":"<div><div>This study developed and validated semi-empirical models to forecast Türkiye's oilseed production, consumption, waste generation, and biodiesel potential through 2040, utilizing 22 years of historical data and population projections. The models, assessed through Mean Absolute Percentage Error (MAPE), coefficient of determination (R<sup>2</sup>), residual analysis, and 95 % confidence intervals (CI), projected significant increases in oilseed production and waste, with sunflower identified as a key feedstock for biodiesel. By 2040, the economic value of biodiesel from oilseed waste is estimated at 75.3 million US$, highlighting its economic and environmental benefits. While the models demonstrated robust overall accuracy, limitations included a low R<sup>2</sup> for soybean consumption and unquantified uncertainty in biodiesel potential due to data scarcity. The study underscores the importance of sustainable waste management and biodiesel production for energy security, offering a forecasting framework for Türkiye's agricultural sector. Future research should focus on refining soybean forecasts, incorporating empirical biodiesel data, and exploring the impacts of key controlling factors, emphasizing collaboration with industry and policymakers for practical applications.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107953"},"PeriodicalIF":5.8,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898405","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}

引用次数: 0

Baobab fruit waste pellets and optimization of selected pelletization parameters 猴面包树果废球团的优选及球团参数的优化

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-03 DOI: 10.1016/j.biombioe.2025.107948

Jacinta Njuguna , Francis Njoka , Esther Nthiga

{"title":"Baobab fruit waste pellets and optimization of selected pelletization parameters","authors":"Jacinta Njuguna , Francis Njoka , Esther Nthiga","doi":"10.1016/j.biombioe.2025.107948","DOIUrl":"10.1016/j.biombioe.2025.107948","url":null,"abstract":"<div><div>Baobab (<em>Adansonia digitata</em>) is a desert plant with very little water content in the produced fruit wastes, making their management a challenge. The aim of this study is to prepare single and co-pelletized baobab fruit waste fuel pellets, analyze their physio-chemical characteristics and study the effect of moisture content and mix ratios on pellet's bulk density, Higher Heating Value (HHV), and Pellet Durability Index (PDI). The effect of moisture content is investigated by varying the biomass moisture levels while fruit shells (FS) and press cake (PC) are mixed in the different ratios by weight. Pellets are produced using a manually-made hydraulic press pelleting machine. Proximate and ultimate analysis are used to study the physio-chemical characteristics of the pellets. Response Surface Methodology (RSM) is employed to study the combined effect of moisture content and mix ratios on pellet's bulk density, HHV and PDI. Results show that, the moisture content, volatile matter, and fixed carbon of FS, PC and their co-pellets ranged between 7.94 % and 9.89 %, 64.94 %–73.20 %, and 17.08 %–21.61 %, respectively. The ultimate analysis show that co-pelletized pellets have a higher carbon and hydrogen contents with significantly low sulfur and nitrogen contents. Increase in moisture levels has a negative impact on bulk density, HHV, and PDI of the pellets. RSM optimization showed that the optimum pellet's bulk density, HHV, and PDI were achieved as 736.70 kg/m<sup>3</sup>, 21.03 MJ/kg, and 99.96 %, respectively. This work reveals a great potential in baobab fruit wastes value chain addition by harnessing these waste materials for clean energy generation.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107948"},"PeriodicalIF":5.8,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901991","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}

引用次数: 0

Comparative analysis of non-isothermal decomposition kinetics in Chrysotila carterae (Haptophyta) culture: Effects of coccolith removal 黄斑金藻培养物非等温分解动力学的比较分析：去除球粒的影响

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-02 DOI: 10.1016/j.biombioe.2025.107921

Saleha Al-Mardeai , Hilal El-Hassan , Navid R. Moheimani , Waleed Hamza , Tamer El-Maaddawy , Sulaiman Al-Zuhair

{"title":"Comparative analysis of non-isothermal decomposition kinetics in Chrysotila carterae (Haptophyta) culture: Effects of coccolith removal","authors":"Saleha Al-Mardeai , Hilal El-Hassan , Navid R. Moheimani , Waleed Hamza , Tamer El-Maaddawy , Sulaiman Al-Zuhair","doi":"10.1016/j.biombioe.2025.107921","DOIUrl":"10.1016/j.biombioe.2025.107921","url":null,"abstract":"<div><div>The cement industry is a major contributor to global CO<sub>2</sub> emissions, necessitating sustainable alternatives. Biocement production using microalgae-derived calcium carbonate (CaCO<sub>3</sub>) offers a promising solution. Coccolithophores, a group of calcifying microalgae, naturally produce CaCO<sub>3</sub>, which can be extracted and utilized in biocement production to reduce the industry's carbon footprint. This study investigates the thermal degradation of <em>Chrysotila carterae</em> biomass before and after coccolith removal to assess its thermal stability. Thermogravimetric analysis (TGA) confirmed effective coccolith extraction via acid treatment. Isoconversional models (Flynn-Wall-Ozawa, Kissinger-Akahira-Sunose, and Starink) were applied at multiple heating rates (5, 10, 25 °C/min) to determine the activation energy (Ea). The coccolith-free biomass exhibited significantly higher Ea values (3441.2 ± 4.3 kJ/mol) than biomass with coccoliths (536.4 ± 4.8 kJ/mol), indicating improved heat resistance. Further kinetic modeling using Coats-Redfern and Malek methods identified the three-way transfer model as the best fit. These results provide crucial insights into the thermal behavior of <em>C. carterae</em>, facilitating its optimal use in biocement production. Additionally, understanding its thermal decomposition enhances the feasibility of utilizing the residual biomass in other applications, including bioenergy. This study contributes to advancing sustainable cement alternatives and biomass valorisation.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107921"},"PeriodicalIF":5.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899685","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}

引用次数: 0

Optimization of combined washing and torrefaction pretreatment for improving fuel properties and combustion performance of rice straw 改善稻草燃料性能和燃烧性能的水洗-焙烧联合预处理优化

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-02 DOI: 10.1016/j.biombioe.2025.107937

Chamini Lakshika Wickramarathna Dissanayake, Dilantha Thushara, Duleeka Sandamali Gunarathne

{"title":"Optimization of combined washing and torrefaction pretreatment for improving fuel properties and combustion performance of rice straw","authors":"Chamini Lakshika Wickramarathna Dissanayake, Dilantha Thushara, Duleeka Sandamali Gunarathne","doi":"10.1016/j.biombioe.2025.107937","DOIUrl":"10.1016/j.biombioe.2025.107937","url":null,"abstract":"<div><div>Combined washing and torrefaction of biomass have proven to be effective in addressing limitations such as low energy density, low bulk density, high moisture content, poor grindability, hygroscopic nature, and high ash content for the application of rice straw as an energy source. The objective of this research was to analyze and optimize the combined washing (water and acetic acid) and torrefaction of rice straw to upgrade the combustion properties. The findings showed that as the temperature increased, the solid yield decreased, with the highest percentage of mass loss (48 %) occurring at 300 °C. In contrast to oxygen content and energy yield, carbon content and higher heating value increased with the torrefaction temperature. Optimum conditions obtained from the combined washing and torrefaction are 30 min residence time, 246 °C, and 256 °C torrefaction temperature for acid-washed and water-washed rice straw samples respectively. Fourier Transform Infrared Spectroscopy (FTIR) analysis showed the structural changes and reduction in intensity in chemical bonds after the washing and torrefaction pretreatment which implied good fuel properties of pretreated rice straw. Acid-washed torrefied rice straw showed the best ignition index (D<sub>i</sub> - 2.19 × 10<sup>−2</sup> wt%/min<sup>3</sup>), burnout index (D<sub>b</sub> - 7.86 × 10<sup>−3</sup> wt%/min<sup>3</sup>), and comprehensive combustion index (S - 5.5 × 10<sup>−7</sup> min<sup>−2</sup> °C<sup>−3</sup>) compared to both raw rice straw and coal.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107937"},"PeriodicalIF":5.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895496","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}

引用次数: 0

Sustainable technologies for bio-waste utilization and valorization: perspectives and challenges 生物废物利用和增值的可持续技术：前景和挑战

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-02 DOI: 10.1016/j.biombioe.2025.107941

Guddu Kumar Gupta , Dharini Pandey , Hao Liu , Naveen Kango , Pratyoosh Shukla

{"title":"Sustainable technologies for bio-waste utilization and valorization: perspectives and challenges","authors":"Guddu Kumar Gupta , Dharini Pandey , Hao Liu , Naveen Kango , Pratyoosh Shukla","doi":"10.1016/j.biombioe.2025.107941","DOIUrl":"10.1016/j.biombioe.2025.107941","url":null,"abstract":"<div><div>A considerable amount of biowaste is generated through urbanization and industrialization, and it is one of the most important environmental problems. Thus, various sustainable technologies are reported that utilize and valorize the biowaste generated. The present review includes the recent developments in valorizing zero-cost, eco-friendly, biodegradable, and easily available biowaste to generate value-added products. Furthermore, the review also focuses on advanced techniques such as pyrolysis, hydrothermal carbonization, gasification, anaerobic digestion, and sonophotocatalysis processes for bio-waste valorization. But there are many intrinsic challenges associated with biowaste such as sludge and by-products manageability, feedstock variability, process efficiency and economic viability of the valorization techniques to the pilot scale-up setup. Recent developments in this field have involved the use of innovative, novel and hybrid techniques to mitigate the challenges and maximize the value of biowaste through employing it as a feedstock to generate valuable products. The policy frameworks are essential to encourage biowaste biorefinery implements for the bioeconomy and contribute to develop an eco-friendly environment. In practice, the best biorefinery approaches rely on technical, economic, and environmental viability as well as social and policy acceptance. Finally, this review covers the insight into the recent developments, advantage and limitations, along with critical discussion and techno-economic feasibility of the biowaste valorization techniques to give a new perspective for the bioeconomy's growth.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107941"},"PeriodicalIF":5.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895499","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}

引用次数: 0

The growth and nutrient removal properties of a newly isolated Desmodesmus sp. XNY-2104 under mixotrophic and heterotrophic conditions using volatile fatty acids (VFAs) 混合营养和异养条件下新分离桥单孢菌XNY-2104的生长和利用挥发性脂肪酸去除营养物的特性

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-01 DOI: 10.1016/j.biombioe.2025.107918

Jie Li , Na Liu , Wenbao Yan , Qi Zhao , Xinglong Zhou , Cong Jia , Chongqing Xu , Xiaozhe Song , Mingming Song

{"title":"The growth and nutrient removal properties of a newly isolated Desmodesmus sp. XNY-2104 under mixotrophic and heterotrophic conditions using volatile fatty acids (VFAs)","authors":"Jie Li , Na Liu , Wenbao Yan , Qi Zhao , Xinglong Zhou , Cong Jia , Chongqing Xu , Xiaozhe Song , Mingming Song","doi":"10.1016/j.biombioe.2025.107918","DOIUrl":"10.1016/j.biombioe.2025.107918","url":null,"abstract":"<div><div>To tackle the issues of high production costs and low lipid rates in large-scale microalgae lipid production, we investigated a new approach that uses volatile fatty acids (VFAs) in wastewater from anaerobic fermentation to provide a carbon source for cultivation. A newly isolated <em>Desmodesmus</em> sp. XNY-2104 showed promising results for cost reduction and water pollution mitigation in mixotrophic and heterotrophic conditions. The influence of diverse ratios of VFAs under mixotrophic and heterotrophic conditions on microalgal growth, nitrogen, phosphorus removal, and lipid accumulation were intensively investigated. The ratios for the acetic acid: propanoic acid: butyric acid (AA: PA: BA) were 8:1:1, 7:1:2, 7:2:1, 7:3:0, 6:1:3, 6:3:1, and 5:4:1. The study found that the best culture condition for XNY-2104 was a heterotrophic conditions with 8:1:1 VFAs ratio. This condition resulted in higher nitrogen and phosphorus removal, as well as higher lipid content, with rates of 99.86 %, 99.28 %, and 38.63 %, respectively. Using VFAs from anaerobic fermentation wastewater as a carbon source to cultivate microalgae is an effective method for achieving a win-win situation between waste utilization and bioenergy production.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107918"},"PeriodicalIF":5.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891455","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}

引用次数: 0

Enhancing the performance of bioreactor landfills by recirculating alkalinized leachate: Continuous operation and feasibility analyses 循环碱化渗滤液提高生物反应器填埋场性能：连续运行及可行性分析

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-01 DOI: 10.1016/j.biombioe.2025.107935

Abdulrahman Abdeljaber , Mohamed Abdallah , Mohamed Arab , Amro El Badawy , Bipro Dhar

{"title":"Enhancing the performance of bioreactor landfills by recirculating alkalinized leachate: Continuous operation and feasibility analyses","authors":"Abdulrahman Abdeljaber , Mohamed Abdallah , Mohamed Arab , Amro El Badawy , Bipro Dhar","doi":"10.1016/j.biombioe.2025.107935","DOIUrl":"10.1016/j.biombioe.2025.107935","url":null,"abstract":"<div><div>Recirculation of near-neutral pH-buffered leachate has been shown to improve the performance of bioreactor landfills (BLs). Prior studies have focused on pH adjustment without specifically targeting higher pH levels above 8. Motivated by the successful application of alkaline pretreatment in anaerobic digestion systems, it was hypothesized that raising the pH of the recirculated leachate in BLs could also enhance organic bioconversion and prevent acid accumulation. This study explored the effect of pretreating the recirculated leachate by alkalinization on the performance of BLs. Batch experimental optimization was carried out using biochemical methane potential assays in duplicates to determine the optimal operating conditions for alkaline addition. Increasing the leachate pH to 10 led to the optimal methane production at 397 mL CH<sub>4</sub> per g of volatile solids (35 % enhancement compared to the control). Afterward, continuous pilot-scale experiments were performed in duplicates with 25-L bioreactors over 28 weeks, and their findings confirmed that alkaline augmentation improved biogas production and methane content by 11 % and 30 %, respectively, while maintaining the pH of the leachate output within the favorable conditions for methanogenic activity. Economic analysis demonstrated that leachate alkalinization was 15 % more cost-effective compared to the control reactor. Energy analyses revealed that the alkalinized bioreactor achieved a 43 % net energy efficiency; 63 % higher than the control, leading to a 15 % increase in cost-effectiveness. This study presents an applicable upgrading strategy to existing and new BLs toward more sustainable waste management.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107935"},"PeriodicalIF":5.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895498","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}

引用次数: 0

MgO-based catalysts for selective delignification of lignocellulosic waste and carboxylic acids production under mild hydrothermal conditions 温和水热条件下木质纤维素废弃物选择性脱木质素及羧酸生产的mgo基催化剂

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-05-01 DOI: 10.1016/j.biombioe.2025.107936

N. Vidal , M. Ventura , M. Orfila , F. Martínez , J.A. Melero

{"title":"MgO-based catalysts for selective delignification of lignocellulosic waste and carboxylic acids production under mild hydrothermal conditions","authors":"N. Vidal , M. Ventura , M. Orfila , F. Martínez , J.A. Melero","doi":"10.1016/j.biombioe.2025.107936","DOIUrl":"10.1016/j.biombioe.2025.107936","url":null,"abstract":"<div><div>Lignocellulosic biomass offers a sustainable alternative to traditional raw materials. However, its complex structure, and particularly the presence of lignin, presents a significant challenge for its conversion into valuable products. This study explores the catalytic performance of magnesium oxide (MgO) based materials for the selective delignification of lignocellulosic waste and concomitant carboxylic acids production. Different MgO samples have been synthesized through various synthetical methods with the purpose of promoting the selective delignification of a lignocellulose waste while minimizing the degradation of other polymers (cellulose and hemicellulose). The resultant lignin-free holocellulose solid after selective depolymerization might be used in subsequent fermentation processes. The catalytic results demonstrated that MgO synthesized by a sol-gel method exhibited the highest catalytic activity, achieving ca. 90 % lignin conversion with minimal degradation of cellulose and hemicellulose and outstanding production of carboxylic acids (ca. 30 % of the carbon of the degraded polymers was converted into carboxylic acids). The high concentration of medium-strength base sites combined with significant macroporosity are crucial for enhancing the catalytic performance of MgO-based catalysts. Importantly, these results were achieved under mild conditions (120 °C) using water as a solvent and without addition of external oxidant agents. Furthermore, the study observed a significant production of valuable (di)carboxylic acids, such as fumaric acid during the depolymerization process over optimized MgO catalyst. This research provides valuable insights into the potential of MgO as a sustainable catalyst for the selective conversion of lignin present in lignocellulosic biomass into valuable chemicals and biofuels.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107936"},"PeriodicalIF":5.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895650","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}

引用次数: 0

Optimized biodiesel production from Java olive seeds using a novel magnetic nanobiocatalyst and advanced optimization techniques 利用新型磁性纳米生物催化剂和先进的优化技术优化爪哇橄榄种子生产生物柴油

IF 5.8 2区生物学

Biomass & Bioenergy Pub Date : 2025-04-30 DOI: 10.1016/j.biombioe.2025.107942

L.R. Monisha Miriam , Ajith J. Kings , Jain B. Marshel , R. Edwin Raj , S. Indran , D. Divya

{"title":"Optimized biodiesel production from Java olive seeds using a novel magnetic nanobiocatalyst and advanced optimization techniques","authors":"L.R. Monisha Miriam , Ajith J. Kings , Jain B. Marshel , R. Edwin Raj , S. Indran , D. Divya","doi":"10.1016/j.biombioe.2025.107942","DOIUrl":"10.1016/j.biombioe.2025.107942","url":null,"abstract":"<div><div>Biodiesel, a renewable and eco-friendly diesel alternative, faces challenges like high costs, feedstock needs, catalyst efficiency, and achieving high yields with minimal resources. A novel Fe-coated silica magnetic nanobiocatalyst was derived from <em>Pedalium murex</em> by chemical achieved a 95 % biodiesel yield with 12.5 wt % usage, demonstrating excellent catalytic properties and reusability in transesterification. Java olive plant seeds, known for their high oil yield, were collected by manual, extracted by mechanical expeller, and converted into biodiesel by transesterification using optimized parameters determined by response surface methodology. These parameters included a methanol/oil ratio of 0.25 v/v, a stirring speed of 1100 rpm, a processing time of 4.5 h, a temperature of 65 °C, and the specified concentration of the nanobiocatalyst. The process again integrated a deep learning neural network, which was optimized by Enhanced Artificial Bee Colony, Fast Cuckoo Search and Grey Wolf Optimization algorithms to enhance the efficiency of biodiesel synthesis. Comparative analysis of the optimization techniques demonstrated the superiority of hybrid methods in achieving higher process efficiency. Finally, a comprehensive analysis of the biodiesel properties was conducted to confirm its compatibility with automotive vehicles, ensuring it meets the necessary standards and performance criteria for efficient and safe operation in engines, thereby validating its suitability for broader application in the transportation sector.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107942"},"PeriodicalIF":5.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887666","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}

引用次数: 0