Hydrothermal co-carbonization of rice straw and acid whey for enhanced hydrochar properties and nutrient recovery

Green Energy and Resources Pub Date : 2024-06-01 DOI:10.1016/j.gerr.2024.100077

Yuxiang Zhao , Taotao Lu , Guochen Xu , Yilun Luo , Xianlong Zhang , Xueping Wu , Xiaozhao Han , Jefferson W. Tester , Kui Wang

{"title":"Hydrothermal co-carbonization of rice straw and acid whey for enhanced hydrochar properties and nutrient recovery","authors":"Yuxiang Zhao , Taotao Lu , Guochen Xu , Yilun Luo , Xianlong Zhang , Xueping Wu , Xiaozhao Han , Jefferson W. Tester , Kui Wang","doi":"10.1016/j.gerr.2024.100077","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigated rice straw hydrothermal carbonization (HTC) in water, optimizing operating conditions to enhance solid carbon content and nitrogen content in hydrochar. Additionally, we conducted hydrothermal co-carbonization (co-HTC) of rice straw and acid whey, achieving significant improvements in hydrochar properties. Co-HTC resulted in a 53.6% increase in HHVs, 20.0% higher yield, and a 42.7% rise in carbon content, accompanied by notable reductions in ash content. Nitrogen content increased by 26.0%, P content by 12.7 times, and K content by 27.6%. Analytical techniques revealed promising modifications, indicating potential applications of hydrochar in solid fuel or organic fertilizers, thus contributing to a circular bioeconomy in agricultural waste management.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 2","pages":"Article 100077"},"PeriodicalIF":0.0000,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000316/pdfft?md5=e4aab717fdab5ec5de229b65638e7253&pid=1-s2.0-S2949720524000316-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Green Energy and Resources","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2949720524000316","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

This study investigated rice straw hydrothermal carbonization (HTC) in water, optimizing operating conditions to enhance solid carbon content and nitrogen content in hydrochar. Additionally, we conducted hydrothermal co-carbonization (co-HTC) of rice straw and acid whey, achieving significant improvements in hydrochar properties. Co-HTC resulted in a 53.6% increase in HHVs, 20.0% higher yield, and a 42.7% rise in carbon content, accompanied by notable reductions in ash content. Nitrogen content increased by 26.0%, P content by 12.7 times, and K content by 27.6%. Analytical techniques revealed promising modifications, indicating potential applications of hydrochar in solid fuel or organic fertilizers, thus contributing to a circular bioeconomy in agricultural waste management.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

水稻秸秆和酸性乳清的水热共碳化可提高水炭性能和营养回收率

本研究调查了水稻秸秆在水中的水热碳化（HTC），通过优化操作条件来提高水碳中的固体碳含量和氮含量。此外，我们还对水稻秸秆和酸性乳清进行了水热共碳化（co-HTC），显著改善了水炭的特性。共碳化使 HHVs 增加了 53.6%，产量提高了 20.0%，碳含量增加了 42.7%，同时灰分含量也显著降低。氮含量增加了 26.0%，磷含量增加了 12.7 倍，钾含量增加了 27.6%。分析技术揭示了有前景的改性，表明了水炭在固体燃料或有机肥料中的潜在应用，从而为农业废物管理中的循环生物经济做出了贡献。

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分钟内获得全文去求助

来源期刊

Green Energy and Resources

自引率

0.00%

发文量