文献类型：期刊文献

英文题名：In-situ sulfur fixation mechanism during microwave fluidized-bed co-pyrolysis of waste tires and biomass

作者：Xu, Qing[1,2];Chen, Zijian[1];Xian, Shengxian[1,2];Li, Haowei[1];Wu, Yujian[1]

机构：[1]Guangdong Ocean Univ, Coll Ocean Engn & Energy, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Guangdong Prov Key Lab Intelligent Equipment South, Zhanjiang 524088, Peoples R China

年份：2025

卷号：494

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：SCI-EXPANDED(收录号：WOS:001428998400001)、、EI(收录号：20250817893763)、Scopus(收录号：2-s2.0-85217967523)、WOS

基金：This work was supported by the National Natural Science Foundation of China (No.52476190) , the National Natural Science Foundation of China (No.52376171) , Guangdong Basic and Applied Basic Research Foundation (2023A1515110541) , the Program for Scientific Research Start-up Funds of Guangdong Ocean University (060302062107) and the Zhanjiang Marine Youth Talent Innovation Project (2023E0011) .

语种：英文

外文关键词：Waste tires; Biomass; Co-pyrolysis; In-suit sulfur fixation; Microwave fluidized-bed pyrolysis

外文摘要：The disposal of waste tires (WT) presents significant environmental challenges, and microwave fluidized-bed pyrolysis offers a sustainable solution, though research remains limited. A major issue in WT pyrolysis is sulfur emission, which can be mitigated through co-pyrolysis with biomass. Co-pyrolysis between WT and two types of biomass (peanut shell (PS), Ascophyllum (AS)) was investigated, using a microwave fluidized-bed reactor, focusing on the in-situ sulfur fixation mechanism. The results show that co-pyrolysis led to higher char yield and lower gas yield than expected, with less sulfur released into the pyrolysis oil and more sulfur retained in the char. The interaction between the products of WT and biomass promoted the formation of macromolecular organic compounds, leading to an increase in aromatic hydrocarbons in the pyrolysis oil and inhibiting the release of sulfur-containing organic compounds. Sulfur in WT was oxidized by -OH radicals from biomass, forming solid oxygenated organic sulfur and reducing the catalytic decomposition of sulfur. Additionally, the retention of alkaline metals in biomass ash enhanced sulfur fixation. These findings suggest that microwave fluidized-bed copyrolysis of WT and biomass is effective in capturing sulfur and generating valuable hydrocarbons, providing a promising solution for managing urban and agricultural solid wastes sustainably.