文献类型：期刊文献

英文题名：Decoupling the influence of terrestrial biomass on microwave pyrolysis of seaweed and sulfur migration

作者：Xu, Qing[1,2];Chen, Yanxu[1];Feng, Yaoxun[1,2];Xian, Shengxian[1,2];Wu, Yujian[1];Li, Haowei[1,2];Zhang, Zongliang[1];Chen, Baokang[1]

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

年份：2026

卷号：239

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：SCI-EXPANDED(收录号：WOS:001644518300001)、、EI(收录号：20255119719163)、Scopus(收录号：2-s2.0-105024695218)、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), Joint Training Demonstration Base Project for Graduate Students of "Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences" in Guangdong Province, Guangdong Basic and Applied Basic Research Foundation (2023A1515110541),Guangdong Basic and Applied Basic Research Foundation (2025A1515010722),Characteristic and Innovative Projects of General Institutions of Higher Education in Guangdong Province (2025KTSCX044),Youth S&T Talent Support Programme of Guangdong Provincial Association for Science and Technology (SKXRC2025404), Zhanjiang Non-Funded Science and Technology Research Program Projects(2025B01054),Guangdong Basic and Applied Basic Research Foundation (2024A1515010637),Zhanjiang Marine Youth Talent Innovation Project (Grant No. 2024R3002)

语种：英文

外文关键词：Microwave co-pyrolysis; Sargassum; Ash; Volatile matter; Sulfur migration

外文摘要：Biomass co-pyrolysis offers a promising strategy for sustainable energy production; however, the role of inherent components in feed stocks in influencing product yields and sulfur behavior requires further investigation. This study investigated the role of active components (ash, volatile matter) in corncob during its microwave co-pyrolysis with marine biomass (Sargassum) on sulfur transformation. Experimental results and correlation analysis indicate that ash and volatiles are key determinants of the pyrolysis pathway. Ash promotes the pyrolytic conversion, decreases the bio-char yield, and increases the yields of bio-oil and bio-gas; its composition governs the sulfur distribution: alkaline earth metals (Ca, Mg) tend to fix sulfur in the char; they promote the cleavage of-OH groups, creating an oxidative environment that increases the content of oxygenated organic sulfur in the biochar, whereas alkali metals (K, Na) have the opposite effect. Al2O3 has little impact on the sulfur species. Volatiles promote the pyrolysis, decreasing the bio-char yield, while increasing the yields of bio-oil and bio-gas, facilitating the release of sulfur. By providing free H atoms, they promote the cleavage of C-S bonds, stabilize hydroxyl groups, and create a reducing environment, which reduces the content of oxygenated organic sulfur in the bio-char, thus regulating the sulfur species. Moreover, driven by the interaction between ash components and volatiles, the synergistic effect between Sargassum and corn stover enables the directional control of sulfur migration.