Solar-Driven Hydrothermal Pretreatment to Improve Anaerobic Digestion of Corn Straw

IF 3 3区工程技术 Q3 ENERGY & FUELS

BioEnergy Research Pub Date : 2025-05-22 DOI:10.1007/s12155-025-10848-6

Lanxing Ying, Yao Zhong, Jinsong He, Dong Tian, Mei Huang, Yanzong Zhang, Yan Liu, Fei Shen

{"title":"Solar-Driven Hydrothermal Pretreatment to Improve Anaerobic Digestion of Corn Straw","authors":"Lanxing Ying, Yao Zhong, Jinsong He, Dong Tian, Mei Huang, Yanzong Zhang, Yan Liu, Fei Shen","doi":"10.1007/s12155-025-10848-6","DOIUrl":null,"url":null,"abstract":"<div><p>Because of the increasing contradictions between the depletion of fossil fuels and the pursuit of sustainable development, renewable energy is in great demand. Extra energy inputs restrict biomass from being a carbon–neutral resource for bioenergy conversion. Integrating clean energy can reduce the consumption of conventional energy to settle this issue. Solar energy was introduced into the hydrothermal pretreatment (HP) of lignocellulosic wastes to improve the performance of anaerobic digestion (AD). In this study, a solar-driven hydrothermal pretreatment (SHP) reactor was designed, and four different kinds of weather conditions were selected to investigate the performance of the pretreatment using corn straw (CS) for AD. The results indicated that good weather conditions (high light intensity) achieved the highest temperature of 156.2 °C in the SHP reactor. It was surprising that the pretreated CS at low light intensity (LI) had the highest cumulative methane yield of 210.61 mL/g TS. Correspondingly, the maximum net energy was gained with LI, which was 10.10% higher than that of the untreated substrates. The life cycle assessment results indicated that SHP had better environmental benefits than traditional HP. The work suggested that introducing solar energy into HP is feasible to satisfy the energy requirements, and it is promising for large-scale application. </p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BioEnergy Research","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s12155-025-10848-6","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Because of the increasing contradictions between the depletion of fossil fuels and the pursuit of sustainable development, renewable energy is in great demand. Extra energy inputs restrict biomass from being a carbon–neutral resource for bioenergy conversion. Integrating clean energy can reduce the consumption of conventional energy to settle this issue. Solar energy was introduced into the hydrothermal pretreatment (HP) of lignocellulosic wastes to improve the performance of anaerobic digestion (AD). In this study, a solar-driven hydrothermal pretreatment (SHP) reactor was designed, and four different kinds of weather conditions were selected to investigate the performance of the pretreatment using corn straw (CS) for AD. The results indicated that good weather conditions (high light intensity) achieved the highest temperature of 156.2 °C in the SHP reactor. It was surprising that the pretreated CS at low light intensity (LI) had the highest cumulative methane yield of 210.61 mL/g TS. Correspondingly, the maximum net energy was gained with LI, which was 10.10% higher than that of the untreated substrates. The life cycle assessment results indicated that SHP had better environmental benefits than traditional HP. The work suggested that introducing solar energy into HP is feasible to satisfy the energy requirements, and it is promising for large-scale application.

Graphical Abstract

查看原文本刊更多论文

太阳能水热预处理改善玉米秸秆厌氧消化

由于化石燃料的枯竭与追求可持续发展之间的矛盾日益加剧，对可再生能源的需求很大。额外的能源投入限制了生物质成为生物能源转换的碳中性资源。整合清洁能源可以减少传统能源的消耗来解决这一问题。将太阳能引入木质纤维素废弃物的水热预处理（HP）中，以提高厌氧消化（AD）的性能。设计了太阳能水热预处理（SHP）反应器，并在4种不同天气条件下对玉米秸秆预处理AD的性能进行了研究。结果表明，在良好的天气条件下（光照强度高），该堆的最高温度可达156.2℃。在低光强（LI）条件下，预处理后的CS累积甲烷产率最高，为210.61 mL/g TS，相应的，LI获得的净能量最大，比未处理的基质高10.10%。生命周期评价结果表明，SHP比传统HP具有更好的环境效益。研究结果表明，将太阳能引入HP是可行的，可以满足能源需求，具有大规模应用的前景。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

BioEnergy Research ENERGY & FUELS-ENVIRONMENTAL SCIENCES

CiteScore

6.70

自引率

8.30%

发文量

174

审稿时长

3 months

期刊介绍： BioEnergy Research fills a void in the rapidly growing area of feedstock biology research related to biomass, biofuels, and bioenergy. The journal publishes a wide range of articles, including peer-reviewed scientific research, reviews, perspectives and commentary, industry news, and government policy updates. Its coverage brings together a uniquely broad combination of disciplines with a common focus on feedstock biology and science, related to biomass, biofeedstock, and bioenergy production.