文献类型：期刊文献

英文题名：A comprehensive study on pyrolysis behavior and product characteristic of different components in brewer's spent grains

作者：Liu, Peng-bo[1,2];Sun, Shuo[1,2];Li, Xue-qin[3];Huang, Sheng[1,2];Wu, You-qing[1,2];Li, Zong-yin[4];Wei, Xiao[5,6];Wu, Shi-yong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Resource & Environm Engn, State Key Lab Coal Liquificat Gasificat & Utilizat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Resource Utilizat Carbon Containing W, Minist Educ, Shanghai 200237, Peoples R China;[3]Henan Univ Technol, Sch Environm Engn, Zhengzhou 450001, Henan, Peoples R China;[4]East China Univ Sci & Technol, Inst Sci & Technol Dev, Shanghai 200237, Peoples R China;[5]Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Peoples R China;[6]Harbin Inst Technol, Zhengzhou Res Inst, Zhengzhou 450001, Henan, Peoples R China

年份：2026

卷号：406

外文期刊名：FUEL

收录：;EI(收录号：20253919227545);WOS:【SCI-EXPANDED(收录号:WOS:001578765100001)】；

基金：This research was supported by National Key R & D Program of China (2023YFB4103501-3) , and the National Natural Science Foundation of China (Grant No. 22378129) .

语种：英文

外文关键词：Brewer's spent grains; Biomass components; Pyrolysis characteristics; Product properties; Pyrolysis mechanism

摘要：In order to investigate the role of protein, cellulose, hemicellulose, lignin and KOH during brewer's spent grains (BSG) pyrolysis, BSG was pre-treated using the Van Soest method and KOH impregnation, respectively. And different samples were then pyrolyzed at 700 degrees C. The characteristics of pyrolysis products were analyzed to understand the role of different components during pyrolysis and reveal the pyrolysis mechanism of BSG. The results showed that the pyrolysis of protein, hemicellulose and cellulose facilitated the generation of gas and tar, while lignin pyrolysis enhanced the generation of biochar, and KOH addition promoted gas release. Further analysis revealed that proteins promoted the decarbonylation and decarboxylation of cellulose and lignin, consequently increasing the CO yield and reducing the peak temperature of the CO2 release rate. The tar consisted primarily of aromatic and aliphatic compounds. Monocyclic aromatic hydrocarbons were generated mainly from lignin pyrolysis, whereas proteins and hemicellulose contributed predominantly to polycyclic aromatic hydrocarbon formation. KOH addition favored phenolic compound production. Cellulose and KOH increased the O content and decreased the C content in biochar. Lignin enhanced the aromatization degree of biochar, as evidenced by BC-ADL exhibiting the highest C-C group content and the lowest C=O group content among all samples. Finally, the biomass pyrolysis mechanism was investigated. This study provides data support and a theoretical reference for biomass utilization research.