BioEnergy Research最新文献_第10页

Machine Learning Modelling for Predicting the Efficacy of Ionic Liquid-Aided Biomass Pretreatment 预测离子液体辅助生物质预处理功效的机器学习模型

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-26 DOI: 10.1007/s12155-024-10747-2

Biswanath Mahanty, Munmun Gharami, Dibyajyoti Haldar

{"title":"Machine Learning Modelling for Predicting the Efficacy of Ionic Liquid-Aided Biomass Pretreatment","authors":"Biswanath Mahanty, Munmun Gharami, Dibyajyoti Haldar","doi":"10.1007/s12155-024-10747-2","DOIUrl":"10.1007/s12155-024-10747-2","url":null,"abstract":"<div><p>The influence of ionic liquid (IL) characteristics, lignocellulosic biomass (LCB) properties, and process conditions on LCB pretreatment is not well understood. In this study, a total of 129 experimental data on LCB (grass, agricultural, and forest residues) pretreatment using imidazolium, triethylamine, and choline-amino acid ILs were compiled to develop machine learning (ML) models for cellulose, hemicellulose, lignin, and solid recovery. Following data imputation, a bilayer artificial neural network (ANN) and random forest (RF) regression, the two most widely adopted ML models, were developed. The full-featured ANN following Bayesian hyperparameter (HP) optimisation offered excellent fit on training (<i>R</i><sup>2</sup>: 0.936–0.994), though cross-validation (<i>R</i><sub>2</sub>CV) performance remained marginally poor, i.e. between 0.547 and 0.761. The fitness of HP-optimised RF models varied between 0.824 and 0.939 for regression, and between 0.383 and 0.831 in cross-validation. Temperature and pretreatment time had been the most important predictors, except for hemicellulose recovery. Bayesian predictor selection combined with HP optimisation improved the <i>R</i><sup>2</sup>CV boundary for ANN (0.555–0.825), as well as for RF models (0.474–0.824). As predictive performance of the models varied depending on target response, use of a larger homogeneous dataset may be warranted. The predictive modelling framework for LCB pretreatment, developed in this study, can be extended to similar biochemical process systems.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1569 - 1583"},"PeriodicalIF":3.1,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140303207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Effect of Hemicelluloses Fractionated by Graded Ethanol Precipitation from Corn Stover on the Enzymatic Hydrolysis of Lignocellulosic Biomass 玉米秸秆乙醇分级沉淀法提取的半纤维素对木质纤维素生物质酶水解的影响

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-25 DOI: 10.1007/s12155-024-10745-4

Zhanqiang Yan, Md Asraful Alam, Jinfeng Li, Wenlong Xiong, Shen Zhang, Zili Zhan, Jingliang Xu

{"title":"Effect of Hemicelluloses Fractionated by Graded Ethanol Precipitation from Corn Stover on the Enzymatic Hydrolysis of Lignocellulosic Biomass","authors":"Zhanqiang Yan, Md Asraful Alam, Jinfeng Li, Wenlong Xiong, Shen Zhang, Zili Zhan, Jingliang Xu","doi":"10.1007/s12155-024-10745-4","DOIUrl":"10.1007/s12155-024-10745-4","url":null,"abstract":"<div><p>The presence of hemicellulose inhibits the enzymatic hydrolysis of lignocellulosic biomass. The purpose of this study is to investigate the effect of different hemicellulose fractions on the enzymatic hydrolysis and the way to eliminate the inhibiting effect caused by hemicellulose. Four kinds of hemicelluloses, namely, H<sub>XF</sub>, H<sub>15</sub>, H<sub>30</sub>, and H<sub>60</sub>, were first extracted from corn stover by ethanol fractional precipitation. The structures of hemicellulose samples were analyzed using Fourier transform infrared spectroscopy, <sup>1</sup>H and <sup>13</sup>C nuclear magnetic resonance, and high-performance ion chromatography. The results show that H<sub>30</sub> has the strongest inhibition on the enzymatic hydrolysis of Avicel and corn stover, presenting inhibition ratio of 13.35% and 9.98%, respectively. The inhibition ratios of other hemicelluloses in Avicel and corn stover are 8–12% and 5–9%, respectively. However, the inhibiting effect caused by H<sub>30</sub> is removed by adding hemicellulase, which even presents a 4.99% increase in the efficiency of enzymatic hydrolysis of corn stover. The corresponding glucose concentration reached 68.11 g/L. This research could help design effective processes to promote the enzymatic hydrolysis of lignocellulosic biomass.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1469 - 1480"},"PeriodicalIF":3.1,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140301858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Use of Cranberry Bush (Viburnum opulus L.) Fruit Pomace as a Renewable Substrate for Biobutanol Production by Clostridium beijerinckii in the Presence of Sodium Dithionite 利用蔓越橘果渣作为可再生底物，在亚硫酸钠存在下通过贝氏梭菌生产生物丁醇

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-22 DOI: 10.1007/s12155-024-10739-2

Mariye Nur Çelik, Nazlıhan Tekin, Sevgi Ertuğrul Karatay, Gönül Dönmez

{"title":"Use of Cranberry Bush (Viburnum opulus L.) Fruit Pomace as a Renewable Substrate for Biobutanol Production by Clostridium beijerinckii in the Presence of Sodium Dithionite","authors":"Mariye Nur Çelik, Nazlıhan Tekin, Sevgi Ertuğrul Karatay, Gönül Dönmez","doi":"10.1007/s12155-024-10739-2","DOIUrl":"10.1007/s12155-024-10739-2","url":null,"abstract":"<div><p>The present study aims to evaluate the use of cranberry bush fruit pomace (CBFP) (<i>Viburnum opulus</i> L.), which has recently become popular raw material, as a substrate in the presence of a reducing agent to increase biobutanol production by <i>Clostridium beijerinckii</i> DSMZ 6422. For this purpose, some factors were optimized, including the pretreatment, initial concentration of CBFP (5–20%), different types of reducing agents (ascorbic acid, L-cysteine, sodium dithionite and sodium sulfite), different concentrations of sodium dithionite (2.5–15 mM), inoculum concentration (5%, 10%, and 20%), and fermentation time (24–96 h). The maximum biobutanol, total ABE, biobutanol yield, and biobutanol productivity were 9.45 g/L, 12.08 g/L, 0.21 g/g, and 0.13 g/L/h in the medium containing enzymatically hydrolyzed 10% CBFP, 10 mM sodium dithionite, and 20% inoculum at the end of 72 h, respectively. These findings demonstrate that CBFP can be considered as a sustainable, economical, and viable substrate on biobutanol production for the first time in the literature.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1689 - 1700"},"PeriodicalIF":3.1,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-024-10739-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140197455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Self-Buffering Effect of Solids During High-Solid Enzymatic Hydrolysis of Lignocellulose 木质纤维素高固酶水解过程中固体的自我缓冲作用

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-19 DOI: 10.1007/s12155-024-10744-5

Xin Shi, Lan Wang, Hongzhang Chen

{"title":"Self-Buffering Effect of Solids During High-Solid Enzymatic Hydrolysis of Lignocellulose","authors":"Xin Shi, Lan Wang, Hongzhang Chen","doi":"10.1007/s12155-024-10744-5","DOIUrl":"10.1007/s12155-024-10744-5","url":null,"abstract":"<div><p>The role of buffer in modulating the enzymatic hydrolysis environment of lignocellulose is crucial. However, studies on the impact of buffer on high-solid enzymatic hydrolysis remain limited. This study discovered that utilizing deionized water as a reaction medium, rather than the conventional buffer, did not influence the enzymatic hydrolysis of steam-exploded corn stover when the solid loading ranged between 15 and 25%. At 15% solid loading, the glucan conversion in the group treated with buffer was recorded at 89.8%, with a corresponding glucose concentration of 51.1 g/L. In contrast, the group without buffer exhibited a conversion of 88.9% and a glucose concentration of 50.5 g/L. The increase of acid groups in lignin was attributed to the formation of phenolic hydroxyls during steam explosion, which provided the substrate with the necessary conditions for buffering effects. Sequentially, during the high-solid enzymatic hydrolysis process, the substrate’s increased pore volume and specific surface area could potentially offset the buffering capacity, which led to the buffering effect becoming ineffective. Leveraging the self-buffering effect of the substrate, a fed-batch strategy was developed. This strategy replaced the water supplementation with buffers, augmenting the solid loading from 20 to 33% across six distinct feeding sessions over a span of 72 h. This not only reduced costs but also laid the foundation for the industrial viability of lignocellulosic high-concentration sugar production, thereby advancing the biofuels and bioproducts sector. These findings provide valuable insights for the exploration of solid reaction processes.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1701 - 1711"},"PeriodicalIF":3.1,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140171141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Unveiling the Biomass Valorization: The Microbial Diversity in Promoting a Sustainable Socio-economy 揭示生物质的价值：促进可持续社会经济的微生物多样性

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-15 DOI: 10.1007/s12155-024-10743-6

Antonielle Vieira Monclaro, Helder Andrey Rocha Gomes, Gilvan Caetano Duarte, Leonora Rios de Souza Moreira, Edivaldo Ximenes Ferreira Filho

{"title":"Unveiling the Biomass Valorization: The Microbial Diversity in Promoting a Sustainable Socio-economy","authors":"Antonielle Vieira Monclaro, Helder Andrey Rocha Gomes, Gilvan Caetano Duarte, Leonora Rios de Souza Moreira, Edivaldo Ximenes Ferreira Filho","doi":"10.1007/s12155-024-10743-6","DOIUrl":"10.1007/s12155-024-10743-6","url":null,"abstract":"<div><p>Lignocellulosic biomass is of significant industrial and scientific interest. Residues derived from different activities (agro-industrial work, food consumption, wood use, urban solid waste, etc.) and their subsequent use are key to extending circularity models to the different technological sectors that are beginning to implement circular economy cycles. Biorefineries are integrated platforms that value waste conversion into various value-added products. The generation of bioproducts derived from lignocellulosic waste (green fuels, green chemicals, and biomaterials) has promoted a shift from a fossil fuel–based economy to a more sustainable one. In addition, integrating biorefineries into the circular economy framework promotes a comprehensive approach to resource management, waste reduction, and sustainable development, which contributes to the overall resilience and efficiency of societal systems. There has been increased focus on the application of “canonical microorganisms” for residual biomass conversion, such as fungi, bacteria, and yeast. However, there is a plethora of other potential microorganisms that can be candidates for new biotechnological applications. This review aims to describe the valorization of different sources of lignocellulosic biomass in the global context, with a focus on Brazilian practice, and to emphasize how the use of microbial diversity is critical to enhancing current technologies, such as advanced liquid fuels. Finally, there is a discussion of the potential of anaerobic fungi, archaea, protists, and oomycetes as microbial product conversion technologies.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1355 - 1374"},"PeriodicalIF":3.1,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Analysis of Three Delignification Treatments of Corncob Residues for High Cellulosic Ethanol Production 分析用于高纤维素乙醇生产的三种玉米芯残渣木质素化处理方法

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-15 DOI: 10.1007/s12155-024-10738-3

KeKe Cheng, TianMei Wu, XiaoBi Tan, HuiXiong Zhong

{"title":"Analysis of Three Delignification Treatments of Corncob Residues for High Cellulosic Ethanol Production","authors":"KeKe Cheng, TianMei Wu, XiaoBi Tan, HuiXiong Zhong","doi":"10.1007/s12155-024-10738-3","DOIUrl":"10.1007/s12155-024-10738-3","url":null,"abstract":"<div><p>Three delignification treatments of corncob residues (CCR), including NaOH, formic acid, and sulfite treatments, were compared at the respective optimized condition and in light of chemical compositions, sugar recovery, and ethanol production. NaOH and sulfite treatment can remove lignin in the CCR efficiently. Though NaOH treatment showed a superior ability of delignification, its solid cellulose recovery is lower than that of sulfite treatment. The sulfite treatment has the highest selectivity between delignification and cellulose conservation. The formic acid-treated CCR still had high lignin contents because formic acid also accelerated the solvation of cellulose. In fed-batch simultaneous saccharification and fermentation (SSF) with 25% substrate loading, the highest 77.1 ± 2.33 g/L ethanol was from NaOH-treated CCR, corresponding to a CCR-to-ethanol yield of 0.208 ± 0.0021 g/g. However, the sulfite pretreated CCR also produced 68.2 ± 2.22 g/L ethanol, with a higher CCR-to-ethanol yield of 0.219 ± 0.0012 g/g. The high substrate dosage is beneficial to ethanol concentration but not beneficial to CCR-to-ethanol yield. The optimal substrate dosage required for ethanol production depends on the targeted aim (ethanol concentration or CCR-to-ethanol yield).</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1449 - 1459"},"PeriodicalIF":3.1,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Hydrothermal Carbonization and Torrefaction of Kenaf, Rice Husk, Corncob, and Wood Chip: Characteristics and Differences of Hydrochar and Torrefied Char 剑麻、稻壳、玉米芯和木屑的水热碳化和热解：氢化炭和焦化炭的特征和差异

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-15 DOI: 10.1007/s12155-024-10731-w

Seong Rae Lim, Ga Hee Kim, Byung Hwan Um

{"title":"Hydrothermal Carbonization and Torrefaction of Kenaf, Rice Husk, Corncob, and Wood Chip: Characteristics and Differences of Hydrochar and Torrefied Char","authors":"Seong Rae Lim, Ga Hee Kim, Byung Hwan Um","doi":"10.1007/s12155-024-10731-w","DOIUrl":"10.1007/s12155-024-10731-w","url":null,"abstract":"<div><p>The characteristics of biochar vary widely depending on the type of biomass and thermochemical conversion method. In this study, four types of biomass (kenaf, rice husk, corncob, and wood chips) were subjected to hydrothermal carbonization and torrefaction at 220 °C, 260 °C, and 300 °C for 30 min. The acquired biochars showed significant differences in the type of reaction and biomass. At each temperature, the decomposition of volatiles was more severe in hydrochar (HC) than in torrefied char (TC). The mass yields of HC were 44.30–61.63 wt.% (220 °C), 20.89–37.04 wt.% (260 °C), and 12.59–29.19 wt.% (300 °C), whereas the mass yields of TC were 94.73–97.69 wt.% (220 °C), 87.19–95.04 wt.% (260 °C), and 68.22–80.78 wt.% (300 °C). The elemental and thermal characteristics of TC changed gradually as the reaction temperature increased, and the characteristics of HC were enhanced rapidly. Wood chip biochar that was reacted at 300 °C showed the highest heating values of 28.77 MJ/kg (HC) and 21.09 MJ/kg (TC). The results of chemical analyses showed that hydrothermal carbonization strongly affected the cleavage of inter- and intra-molecular carbon bonds in cellulose and hemicellulose. In contrast, torrefaction removed the thermally fragile moisture and hemicellulose content from biomass.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1816 - 1831"},"PeriodicalIF":3.1,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Production of Lipid and Xylo-oligosaccharides from Cellulose and Hemicellulose in Reed Sawdust 利用芦苇锯屑中的纤维素和半纤维素生产脂质和木寡糖

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-14 DOI: 10.1007/s12155-024-10735-6

MeiZhen Jiao, Xinran Zhang, Yiqin Wang, Jian Du, Yehan Tao, Yanna Lv, Ming Chen, Jie Lu, Haisong Wang

{"title":"Production of Lipid and Xylo-oligosaccharides from Cellulose and Hemicellulose in Reed Sawdust","authors":"MeiZhen Jiao, Xinran Zhang, Yiqin Wang, Jian Du, Yehan Tao, Yanna Lv, Ming Chen, Jie Lu, Haisong Wang","doi":"10.1007/s12155-024-10735-6","DOIUrl":"10.1007/s12155-024-10735-6","url":null,"abstract":"<div><p>Reed sawdust is a kind of paper mill waste with high cellulose and hemicellulose content. To promote the rational use of resources, it is essential to make full use of waste resources and transform them into new values. In this work, reed sawdust was pretreated with liquid hot water (LHW) at 170 °C for 30 min. A total of 39.00 g/L glucose was obtained after enzymatic saccharification of cellulose at 50 °C, 20 FPU/g-<sub>reed sawdust</sub> cellulase, 25% (w/v) reed sawdust, in 5 replenishments. When the fermentation was performed 96 h, the medium contained xylo-oligosaccharides (XOS) 11.74 g/L and biomass 15.21 g/L, in which lipid was 4.14 g/L. After spray drying, feed additives containing 29.17% XOS and 10.29% docosahexaenoic acid (DHA) can be prepared. In particular, the hemicellulose and cellulose in reed sawdust are creatively used at the same time without separation, which greatly reduces the cost of purification in traditional processes and provides a new way for the high-value transformation of sawdust resources.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1493 - 1502"},"PeriodicalIF":3.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140125507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Life Cycle Assessment as a Key Decision Tool for Emerging Pretreatment Technologies of Biomass-to-Biofuel: Unveiling Challenges, Advances, and Future Potential 生命周期评估作为生物质转化为生物燃料的新兴预处理技术的关键决策工具：揭示挑战、进展和未来潜力

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-14 DOI: 10.1007/s12155-024-10741-8

Jayita Chopra, Vivek Rangarajan, Senthilkumar Rathnasamy, Pinaki Dey

{"title":"Life Cycle Assessment as a Key Decision Tool for Emerging Pretreatment Technologies of Biomass-to-Biofuel: Unveiling Challenges, Advances, and Future Potential","authors":"Jayita Chopra, Vivek Rangarajan, Senthilkumar Rathnasamy, Pinaki Dey","doi":"10.1007/s12155-024-10741-8","DOIUrl":"10.1007/s12155-024-10741-8","url":null,"abstract":"<div><p>The surge in global biofuel demand is propelled by intensifying concerns over climate change and effective waste management. Government mandates on biofuel blending further boost this trend, underlining the significance of selecting renewable feedstocks, such as bioethanol and biodiesel, for biofuel production. The importance of selecting an efficient biomass pretreatment method cannot be overstated, given its status as the most energy-intensive and chemical-reliant step in the biofuel production chain. Thus, pretreatment becomes a crucial determinant in the feasibility and economic viability of biofuel technologies. Amid a wide array of pretreatment strategies, identifying a method that is both effective and sustainable is crucial for advancing biofuel commercialization. This review aims to rigorously evaluate both traditional and novel pretreatment techniques and their environmental footprints, leveraging life cycle assessment (LCA) studies from existing literature. By examining the sustainability of various pretreatment methods, this paper provides a holistic and clear view, serving as an essential resource for policymakers and industry stakeholders. It outlines the challenges faced in each phase of an LCA and proposes viable solutions. Additionally, the review furnishes valuable insights, recommendations, and directions for future research in achieving sustainable biofuel production.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 2","pages":"857 - 876"},"PeriodicalIF":3.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140125543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Fuel Wood Pellets Produced from Sawdust of Scots Pine Mature and Juvenile Wood: Self-Heating and Off-Gassing Tests at Industrial Scale 用苏格兰松成熟木和幼年木锯末生产的燃料木粒：工业规模的自加热和脱气试验

IF 3.1 3区工程技术

BioEnergy Research Pub Date : 2024-03-12 DOI: 10.1007/s12155-024-10736-5

Workson Siwale, Michael Finell, Stefan Frodeson, Gunnar Henriksson, Jonas Berghel

{"title":"Fuel Wood Pellets Produced from Sawdust of Scots Pine Mature and Juvenile Wood: Self-Heating and Off-Gassing Tests at Industrial Scale","authors":"Workson Siwale, Michael Finell, Stefan Frodeson, Gunnar Henriksson, Jonas Berghel","doi":"10.1007/s12155-024-10736-5","DOIUrl":"10.1007/s12155-024-10736-5","url":null,"abstract":"<div><p>This study investigated self-heating and off-gassing of Scots pine (<i>Pinus sylvestris</i>) wood pellets made from sawdust generated from separated mature and juvenile wood. The pellets were produced at an industrial scale and stored in large piles of about 7.2 tonnes. The production process involved drying the sawdust using three different methods and to varying moisture contents. The results indicated significant influences of both raw material type (<i>F</i> <sub>(6)</sub> = 61.97, <i>p</i> < 0.05) and drying method (<i>F</i> <sub>(2)</sub> = 65.38, <i>p</i> < 0.05) on the self-heating of the pellets. The results from the multiple regression analysis further showed that both the raw material type and pellet moisture content significantly influenced the temperature increase, with strong correlations observed for pellets produced using low-temperature drying (<i>F</i> <sub>(3, 14)</sub> = 83.52, multiple <i>R</i><sup>2</sup> = 0.95, <i>p</i> < 0.05), and medium temperature drying (<i>F</i> <sub>(3, 13)</sub> = 62.05, multiple <i>R</i><sup>2</sup> = 0.93, <i>p</i> < 0.05). The pellets produced from fresh mature wood sawdust were found to be more prone to self-heating and off-gassing while steam drying the sawdust at high temperature and pressure led to a significant reduction in heat and gas generation across all materials. The heightened self-heating and off-gassing in mature wood pellet can be attributed to a higher proportion of sapwood in the raw material. The probable explanations to the observed differences are in line with biological mechanisms for self-heating and off-gassing, as well as the chemical oxidation of fatty and resin acids.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 3","pages":"1832 - 1842"},"PeriodicalIF":3.1,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-024-10736-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140116114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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