文献类型：期刊文献

英文题名：Effects of SiO2/CaO on the evolution of cellulose char pellets during fast pyrolysis process

作者：Zhang, Chang[1,2];Hu, Zichao[1,2];Gao, Peipei[1,2];Pan, Weitong[1,2];Tang, Longfei[1,2];Chen, Xueli[1,2];Ding, Lu[1,2];Wang, Fuchen[1,2]

机构：[1]Minist Educ, Engn Res Ctr Resource Utilizat Carbon containing W, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China

年份：2024

卷号：12

期号：5

外文期刊名：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

收录：;EI(收录号：20242916726467);WOS:【SCI-EXPANDED(收录号:WOS:001275032900001)】；

基金：This work was supported by the projects of the National Key Research and Development Program of China (2023YFD2201602) .

语种：英文

外文关键词：Char pellets; Morphology evolution; Fast pyrolysis; Cellulose

摘要：The combination of SiO2 and CaO has an interdisciplinary significance in the practical application of thermal conversion of organic wastes. In this work, the influence of CaO/SiO2 on pyrolysis behavior and morphology evolution of cellulose pyrolytic char pellets were explored in a high-frequency heating furnace. Results showed that, the addition of these two oxides obviously regulated the content and composition of pyrolytic products. The further cracking of pyrolytic oil was promoted and the gas yield was increased. Besides, SiO2 and CaO were found in the forms of sharp splinters and aggregates in pyrolytic char, which inhibited the shrinkage of pellets and improved their reactivity. Moreover, a series of synergistic effects were observed, which had influence on both the oil and gas composition, the char reactivity and the microcrystalline structure.