Biomass Conversion and Biorefinery最新文献_第8页

Extraction and characterization of novel cellulosic fiber from Phytolacca americana plant stem 美洲植物茎中新型纤维素纤维的提取与表征

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-24 DOI: 10.1007/s13399-025-06748-6

Seyda Eyupoglu, Can Eyupoglu, Nigar Merdan

{"title":"Extraction and characterization of novel cellulosic fiber from Phytolacca americana plant stem","authors":"Seyda Eyupoglu, Can Eyupoglu, Nigar Merdan","doi":"10.1007/s13399-025-06748-6","DOIUrl":"10.1007/s13399-025-06748-6","url":null,"abstract":"<div><p>In this study, a novel cellulosic plant-based fiber was extracted from <i>Phytolacca americana</i> (inkberry) as a sustainable substitute natural fiber for synthetic fibers. For this purpose, an extended characterization of inkberry fibers was carried out. The elemental composition was determined as 58.27% carbon and 41.70% oxygen. Moreover, an image processing approach was presented and used for computing the average thickness of cellulosic inkberry stem fiber. Fiber diameter was estimated from the scanning electron microscope micrographs with image processing as 480.56 µm. The scanning electron microscope image indicated that inkberry fiber has a smooth surface with a channel structure. X-ray diffraction analysis revealed that the fiber has a 4 nm crystalline size with a 51.4% crystalline index. Fiber functional groups were characterized with Fourier transform infrared analysis. The mechanical behaviors of inkberry fiber were tested with a single fiber tensile test device, and tensile strength was determined as 146.5 MPa, Young’s modulus was found as 24.8 GPa, and elongation at break of fiber was obtained as 2.37%, respectively. Furthermore, the fiber was thermally stabilized up to 435.37 °C with thermogravimetric analysis. These physico-chemical behaviors confirm that inkberry fiber may be recognized as a promising reinforcement fiber in polymer matrix composites for many non-structural applications, which are interior body panels in yachts, automobiles, partition boards in buildings, and barriers.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 18","pages":"24951 - 24964"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13399-025-06748-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of cellulosic ethanol and lignin nanoparticles with UV-blocking potential through fractionation of corncob 通过玉米芯分馏生产具有紫外线阻断电位的纤维素乙醇和木质素纳米颗粒

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-24 DOI: 10.1007/s13399-025-06780-6

José Dário Silva Fidelis, Jadna Lúcia de Freitas Silva, Éntony David Dantas, Thelma Sley Pacheco Cellet, Jackson Araújo de Oliveira, Domingos Fabiano de Santana Souza, Carlos Eduardo de Araújo Padilha

{"title":"Production of cellulosic ethanol and lignin nanoparticles with UV-blocking potential through fractionation of corncob","authors":"José Dário Silva Fidelis, Jadna Lúcia de Freitas Silva, Éntony David Dantas, Thelma Sley Pacheco Cellet, Jackson Araújo de Oliveira, Domingos Fabiano de Santana Souza, Carlos Eduardo de Araújo Padilha","doi":"10.1007/s13399-025-06780-6","DOIUrl":"10.1007/s13399-025-06780-6","url":null,"abstract":"<div><p>The present study developed a valorization scheme with corncob to generate bioethanol and lignin nanoparticles for sunscreens. Alkaline pretreatment with sodium hydroxide was proposed to fractionate the biomass. The pretreated corncob was evaluated in enzymatic hydrolysis and semi-simultaneous saccharification and fermentation (SSSF) under high solid loadings. Lignin was collected and modified by acetylation and converted into nanoparticles using atomization. Pretreated corncob showed increased crystallinity and 50.1% cellulose (1.6-fold increase) due to severe hemicellulose and lignin removal (49.8% and 86.8%). Pretreated corncob resulted in 43.0–51.9 g/L sugars for 5% (w/v) solids and 130.0–161.4 g/L sugars for 20% (w/v) solids. SSSF with <i>Saccharomyces cerevisiae</i> PE-2 achieved 38.2 g/L ethanol and a yield of up to 67.9%. The atomization apparatus led to the generation of lignin nanoparticles with sizes of 20–30 nm. The blends with 2% lignin nanoparticles presented a sun protection factor similar to those with 2% acetylated lignin, highlighting the role of particle size reduction in improving physicochemical properties. Given these results, the present study contributes insights into using and generating value from corncobs.\u0000</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 18","pages":"25449 - 25462"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pyrolysis of rice straw: a critical review 稻秆热解研究进展

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-24 DOI: 10.1007/s13399-025-06790-4

Tanu Choudhary, Parminder Singh, Haripada Bhunia

{"title":"Pyrolysis of rice straw: a critical review","authors":"Tanu Choudhary, Parminder Singh, Haripada Bhunia","doi":"10.1007/s13399-025-06790-4","DOIUrl":"10.1007/s13399-025-06790-4","url":null,"abstract":"<div><p>Rice straw is a common agricultural residue that is readily available. When it is burned publicly, it creates environmental problems, but it may be used in a sustainable way through a process called pyrolysis. This review examines the pyrolysis of rice straw, focusing on the process of converting it into useful products including biochar, bio-oil, and syngas. The yield and characteristics of the products are greatly affected by pyrolysis conditions, which include temperature, residence time, and heating rate. Slow pyrolysis creates biochar that has a higher carbon content and is more stable, making it appropriate for soil amendment and carbon sequestration. On the other hand, fast pyrolysis produces the most bio-oil, which can be processed into renewable fuels. Microwave-assisted pyrolysis and other innovative approaches have the potential to increase energy efficiency and product quality. Pretreatment techniques, including physical, chemical, and biological activities, improve the efficiency of pyrolysis by enhancing the characteristics of the feedstock. Biochar can be used for environmental remediation, energy storage, and heavy metal adsorption, while bio-oil can be used as a sustainable energy source. In addition, rice straw pyrolysis helps to reduce greenhouse gas emissions and makes it easier to collect carbon, which contributes to efforts to mitigate climate change. This review emphasizes the importance of improving pyrolysis techniques to turn rice straw into products that have more value, which provides a sustainable method for managing agricultural waste and producing renewable energy.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 16","pages":"22663 - 22674"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Valorisation of PKM-2 Moringa oleifera leaves waste for adsorption of Titan Yellow dye from aqueous solution, modelling with RSM and ANN PKM-2辣木叶渣吸附水溶液中泰坦黄染料的研究，用RSM和ANN建模

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-22 DOI: 10.1007/s13399-025-06767-3

Chandradhwaj Nayak, Dharani Loganathan, Karunakaran Saravanan, Laxmi Deepak Bhatlu M

{"title":"Valorisation of PKM-2 Moringa oleifera leaves waste for adsorption of Titan Yellow dye from aqueous solution, modelling with RSM and ANN","authors":"Chandradhwaj Nayak, Dharani Loganathan, Karunakaran Saravanan, Laxmi Deepak Bhatlu M","doi":"10.1007/s13399-025-06767-3","DOIUrl":"10.1007/s13399-025-06767-3","url":null,"abstract":"<div><p>Water pollution from synthetic dyes poses significant environmental and health challenges, necessitating efficient and sustainable treatment methods. Titan Yellow (TY) dye, widely used in dyeing and textile industries, is challenging to remove due to its stable composition. However, optimizing treatment processes remains crucial for improving efficiency and applicability. Many potential adsorbents remain underexplored, highlighting the need for further research. This study investigates acid-functionalised Periyakulam 2 (PKM-2) <i>Moringa oleifera</i> leaves powder as an eco-friendly biosorbent for TY dye removal. Biosorbent characterisation by FTIR, XRD, and SEM–EDX demonstrated that hydrogen bonding, π–π, and electrostatic interactions were the main mechanisms involved in Titan Yellow dye adsorption. SEM images showed a highly porous surface before adsorption, which became less porous post-adsorption, confirming effective dye uptake. Response surface methodology-Box–Behnken design (RSM-BBD) optimised adsorption parameters, achieving 99.81% dye removal at 1.58-g biosorbent dosage, 32.30-mg/L initial concentration, pH 7.31, and 188.17-min contact time. An artificial neural network (ANN) model predicted adsorption behaviour with an <i>R</i><sup>2</sup> of 0.998. Adsorption followed the nonlinear pseudo-second-order (PSO) kinetic model, while equilibrium data best fit the nonlinear Langmuir isotherm. Model validation using statistical metrics confirmed prediction accuracy. This research contributes to SDGs 3, 6, 9, and 12 by developing a sustainable water treatment solution using agricultural waste. Acid-functionalised PKM-2 <i>M. oleifera</i> leaves demonstrate high efficiency, non-toxicity, and sustainability for industrial dye removal, promoting clean water solutions, and environmental sustainability.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 16","pages":"22919 - 22939"},"PeriodicalIF":4.1,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical processing for purification and characterization of silica extracted from Gigantochloa albociliata leaves 大褐藻叶中二氧化硅的化学纯化及表征

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-22 DOI: 10.1007/s13399-025-06771-7

Faiz Hafeez Azhar, Zawati Harun, Siti Aida Ibrahim, Rosniza Hussin, Siti Khadijah Hubadillah, Norsuhailizah Sazali, Raja Adibah Raja Ahmad

{"title":"Chemical processing for purification and characterization of silica extracted from Gigantochloa albociliata leaves","authors":"Faiz Hafeez Azhar, Zawati Harun, Siti Aida Ibrahim, Rosniza Hussin, Siti Khadijah Hubadillah, Norsuhailizah Sazali, Raja Adibah Raja Ahmad","doi":"10.1007/s13399-025-06771-7","DOIUrl":"10.1007/s13399-025-06771-7","url":null,"abstract":"<div><p>Dry bamboo leaf waste has emerged as a preferred alternative for silica production because of its chemical properties, making it suitable for diverse applications such as absorbents, biomedicine, ceramic production, membrane additives, and composite production. This study aimed to obtain high-purity silica from <i>Gigantochloa albociliata</i> (honey bamboo) leaves (HBL) in two stages. Stage 1 compared three methods for extracting pure silica: thermal (TT-HBL), beneficiation (BT-HBL), and chemical treatments (CT-HBL). Meanwhile, Stage 2 refined and characterized the purity of the CT-HBL silica by reducing the acid molarities (CT0.5-HBL, CT1-HBL, CT1.5-HBL, CT2-HBL, and CT2.5-HBL). Stage 1 revealed that HBL underwent complete carbonization into silica at 650 °C. Elemental analysis revealed that CT-HBL yielded only Si and O, whereas TT-HBL and BT-HBL retained Mg, K, and Ca. XRD data indicated that all treatments produced amorphous silica, with variations in the crystalline phase due to impurities: TT-HBL (cristobalite low), BT-HBL (quartz low and cristobalite low), and CT-HBL (SiO<sub>2</sub>). Stage 2 results suggest that a nitric acid (HNO<sub>3</sub>) concentration of at least 1.5 M is required to eliminate impurities and produce pure amorphous silica with enhanced hydrophilic properties. XRF oxide testing of CT1.5-HBL confirmed 98% silica content compared to 79% in TT-HBL silica. The existence of contaminants, such as Ca/CaO, explains the conversion of cristobalite low-crystalline and quartz low-crystalline phases into pure amorphous silica, as observed in the XRD analysis for both stages. Thus, this study demonstrated that impurities, such as Ca, can disrupt the silica network, preventing a well-ordered crystalline structure and leading to the generation of pure amorphous silica.\u0000</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 12","pages":"18525 - 18539"},"PeriodicalIF":4.1,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biorefinery based on discarded red beetroot: production of bioactive compounds and 2,3-butanediol 基于废弃红甜菜根的生物精炼：生产生物活性化合物和2,3-丁二醇

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-21 DOI: 10.1007/s13399-025-06770-8

Cristina Barrios, Susana Lucas, M. Teresa García-Cubero, Mónica Coca, Juan Carlos López-Linares

{"title":"Biorefinery based on discarded red beetroot: production of bioactive compounds and 2,3-butanediol","authors":"Cristina Barrios, Susana Lucas, M. Teresa García-Cubero, Mónica Coca, Juan Carlos López-Linares","doi":"10.1007/s13399-025-06770-8","DOIUrl":"10.1007/s13399-025-06770-8","url":null,"abstract":"<div><p>Discarded red beetroot (DRB) is an organic waste produced in the food processing industry, rich in phytochemicals and sugars. This study compares biorefinery schemes for the valorisation of DRB. Two different alternatives were compared to select the most favourable considering global yields and production costs. In scenario 1 (multi-product biorefinery), 0.9 g of phenolics and 0.8 g of betalains were recovered from 100 g of DRB (on dry basis). After extraction, the solid fraction was fed to enzymatic hydrolysis and fermentation to obtain 2,3-butanediol (2,3-BDO) with <i>Paenibacillus polymyxa</i>, achieving a global yield of 9.3 g/100 g DRB. In scenario 2, all the DRB was subjected to enzymatic hydrolysis and subsequent fermentation with <i>P. polymyxa</i>, obtaining a 2,3-BDO global yield of 25.5 g from 100 g DRB. The economic evaluation indicated that a multi-product biorefinery could be the most cost-effective alternative for DRB valorisation, leading to minimum selling prices competitive with the petrochemical route. Thus, the potential for the efficient use of DRB in an integrated biorefinery for the production of high value-added products was demonstrated.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 16","pages":"22819 - 22831"},"PeriodicalIF":4.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13399-025-06770-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and in silico approaches to identify a sustainable source of bioplastics from seaweeds 从海藻中确定生物塑料可持续来源的实验和计算机方法

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-21 DOI: 10.1007/s13399-025-06766-4

Babu Sarangam, Dhamodharan Prabhu, Rathinam Raja, Pugalendran Sangeetha, K. R. Jayappriyan, Sabariswaran Kandasamy, Mathiyazhagan Narayanan

{"title":"Experimental and in silico approaches to identify a sustainable source of bioplastics from seaweeds","authors":"Babu Sarangam, Dhamodharan Prabhu, Rathinam Raja, Pugalendran Sangeetha, K. R. Jayappriyan, Sabariswaran Kandasamy, Mathiyazhagan Narayanan","doi":"10.1007/s13399-025-06766-4","DOIUrl":"10.1007/s13399-025-06766-4","url":null,"abstract":"<div><p>Carrageenan was extracted from <i>Kappaphycus alvarezii</i>, alginate from <i>Sargassum wightii</i>, and agar from <i>Gracilaria crassa</i> and <i>Gelidiella acerosa</i> respectively. The plastic film formed with carrageenan, sodium alginate, and corn starch (F6) showed a higher tensile strength (TS) of 3.051 N/mm<sup>2</sup> followed by a TS value of 3.073 N/mm<sup>2</sup> for films made of carrageenan, sodium alginate, and agar (F7). The lowest tensile strength (0.984 N/mm<sup>2</sup>) was observed in agar film (F3). Garden soil led to higher biodegradation of the seaweed films compared to clay and beach soil. The films F6 and F7 biodegraded with a loss of 90 and 74% respectively within 30 days in garden soil. Given the better biodegradability and better TS and <i>E</i> value, the film F6 (carrageenan sodium alginate and corn starch) can be improvised for wider applications in food packaging and biomedical applications. FT-IR results of F6 bioplastics possessed characteristic peaks that support the chemical properties of bioplastics derived from seaweeds. The molecular docking and molecular dynamics simulation analysis showed that these three biopolymers maintained favorable binding and strong interaction with the cutinase (CutL1) enzyme which is widely reported for the biodegradable function in <i>Aspergillus oryzae</i>. SEM images of the F6 bioplastic show a heterogeneous structure with enhanced roughness.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 16","pages":"22889 - 22899"},"PeriodicalIF":4.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Property evaluation of multi-staged chemically modified used coconut oil for bio-lubricant applications 多级化学改性废椰子油生物润滑油性能评价

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-21 DOI: 10.1007/s13399-025-06751-x

Gokul Biju, Prakash Marimuthu, Ananthan D. Thampi, Baiju Sasidharan, Rani Santhakumari

{"title":"Property evaluation of multi-staged chemically modified used coconut oil for bio-lubricant applications","authors":"Gokul Biju, Prakash Marimuthu, Ananthan D. Thampi, Baiju Sasidharan, Rani Santhakumari","doi":"10.1007/s13399-025-06751-x","DOIUrl":"10.1007/s13399-025-06751-x","url":null,"abstract":"<div><p>Bio-lubricant studies in recent years have shown that they can be used as an eco-friendly alternative to petroleum-based lubricants due to their toxicity and the rapidly exhausting nature of petroleum-based products. Coconut oil (CO) is the most used cooking oil in most of the states of India. Earlier studies have already shown the potential of using pure CO as a base oil for various bio-lubricant applications. The extraction and usage of oils for bio-lubricant applications has many feasibility constraints, and used oils can be considered a more viable base stock for bio-lubricant applications. The present study attempts to make used coconut oil (UCO), which is the oil remaining after the cooking process as a potential source for bio-lubricant production. However, the properties of UCO need to be improved to meet the requirements of industrial applications by multi-stage chemical modification process. This study evaluated and compared the physicochemical, oxidative stability, thermal, and tribological properties of CO, UCO, epoxidized used coconut oil (EUCO), and trans-esterified EUCO (MUCO) using various experimental procedures. The chemical properties of MUCO such as acid and peroxide numbers showed a reduction of around 75% and the iodine value decreased by 20% when compared to UCO. The tribological and oxidative stability properties of MUCO were improved by around 20%, and the improvement in viscosity and thermal properties was observed to be around 10% in comparison with UCO. The results showed that MUCO has better thermal stability, a higher viscosity index, and good anti-wear properties compared to EUCO, UCO, and CO. The study concludes that the MUCO has shown the potential to replace petroleum-based lubricants.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 16","pages":"22849 - 22863"},"PeriodicalIF":4.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving bio-oil quality from durian husk pyrolysis: optimization of esterification process using K2CO3/talc catalyst for sustainable biofuel production 改善榴莲壳热解生物油品质：K2CO3/滑石催化剂酯化工艺优化及可持续生物燃料生产

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-21 DOI: 10.1007/s13399-025-06743-x

Mashuni Mashuni, Ahmad Zaeni, M Jahiding, Indah Risma Damayanti, Fitri Handayani Hamid

{"title":"Improving bio-oil quality from durian husk pyrolysis: optimization of esterification process using K2CO3/talc catalyst for sustainable biofuel production","authors":"Mashuni Mashuni, Ahmad Zaeni, M Jahiding, Indah Risma Damayanti, Fitri Handayani Hamid","doi":"10.1007/s13399-025-06743-x","DOIUrl":"10.1007/s13399-025-06743-x","url":null,"abstract":"<div><p>This study focuses on optimizing the ratio of bio-oil:methanol to improve the quality of fuel obtained from durian husk pyrolysis through an esterification process assisted by a K<sub>2</sub>CO<sub>3</sub>/talc catalyst. This study involved several stages, starting with the pyrolysis of durian husk biomass without the aid of a catalyst (350–500 °C), the distillation process (70–150 °C), and the esterification process using the reflux method at a temperature of 75 °C. This study explored different ratios of bio-oil:methanol (1:8, 1:10, and 1:12) and found that the highest esterification yield was at a ratio of 1:8, reaching 72.22 ± 1.11%. Higher methanol ratios decreased the esterification yield, possibly due to reaction inefficiency. The esterification process demonstrated the success of K<sub>2</sub>CO<sub>3</sub>/talc as a catalyst, producing components such as methyl acetate, methyl ethyl ketone, and methyl 2-methylbutyrate found in esterified bio-oil. The physicochemical properties of bio-oil, including water content, pH, density, viscosity, specific gravity, API specific gravity, and calorific value, were significantly improved through esterification. The water content decreased from 4.76% in crude bio-oil to 3.38% after esterification, while the density decreased from 1.01 to 0.77 g/cm<sup>3</sup>, and the viscosity decreased from 2.68 to 0.51 cSt. The calorific value increased from 43.27 to 47.26 MJ/kg. These improvements indicate that esterification substantially improves bio-oil quality, making it a more viable and efficient renewable fuel source.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 16","pages":"23155 - 23168"},"PeriodicalIF":4.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization and characterization of ultrasonically extracted oil from watermelon seeds using response surface methodology: a pathway to biodiesel and epoxy oil production 利用响应面法优化和表征西瓜籽超声提取油：生产生物柴油和环氧油的途径

IF 4.1 4区工程技术

Biomass Conversion and Biorefinery Pub Date : 2025-03-20 DOI: 10.1007/s13399-025-06746-8

Workisa Bacha Garuma, Tesfaye Kassaw Bedru, Gadissa Tokuma Gindaba, Mani Jayakumar, Idosa Toyi Edae, Beteley Tekola Meshesha, Shegaw Ahmed Mohammed, Abayneh Getachew Demesa

{"title":"Optimization and characterization of ultrasonically extracted oil from watermelon seeds using response surface methodology: a pathway to biodiesel and epoxy oil production","authors":"Workisa Bacha Garuma, Tesfaye Kassaw Bedru, Gadissa Tokuma Gindaba, Mani Jayakumar, Idosa Toyi Edae,  Beteley Tekola Meshesha,  Shegaw Ahmed Mohammed, Abayneh Getachew Demesa","doi":"10.1007/s13399-025-06746-8","DOIUrl":"10.1007/s13399-025-06746-8","url":null,"abstract":"<div><p>The growing demand for renewable energy and sustainable materials has led to interest in the production of unconventional oil such as watermelon seeds for the productions of biodiesel, epoxy resins, and polyols. The oil is extracted by ultrasonic-assisted solvent extraction and RSM is used to optimize the process parameters. The extracted oil physico-chemical composition, mineral content, thermogravimetric properties, functional groups, and fatty acid profiles were analyzed to check the potential of the oil for producing biodiesel, epoxy resin, and polyol. Under optimal conditions of 48.2 °C, 46.3 min, and solid-solvent ratio of 0.067, oil yield was 47.5%. Fatty acid composition included palmitic (5.63%), stearic (3.04%), oleic (19.25%), linoleic (69.96%), and linolenic acid (2.12%). The physico-chemical characteristics of the oil include an iodine value of 124.8 g I<sub>2</sub>/100 g, acidity value of 1.02 mg KOH/g, and saponification value of 201.4 mg KOH/g. The mineral composition also shows its suitability for biodiesel, epoxy resin, and polyol production. The watermelon seed oil properties indicate its suitability for bioenergy and biased material production which has great potential for bio-based industrial applications.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 16","pages":"23135 - 23153"},"PeriodicalIF":4.1,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0