Liu Yang, Mengyao Guo, Yiwen Qian, Deliang Xu, Mortaza Gholizadeh, Karnowo, Hong Zhang, Xun Hu, Shu Zhang
This study aims to examine the capability of nascent glucose-derived char on absorbing and solidifying N-containing gas species from the pyrolysis of fiberboard. A specially designed double-bed quartz reactor was used to carry out the experimental work. The N chemical forms and carbon structure in chars were characterized using XPS and Raman techniques, respectively. The results clearly indicate that the glucose char could effectively retain N-containing volatiles, especially at low temperatures due to its high content in O functional groups. The occurring forms of N inherently existing in fiberboard-derived char showed different transforming patterns from those in the glucose chars where the N compounds (e.g., amide-N) were externally obtained by intensive volatile-char interactions. The in-situ DRIFT analysis showed that the amino groups released from fiberboard may react with the aldehyde groups containing in the glucose char and form N-doped aromatic rings. Additionally, although the increase in carrier gas (thus decreasing the volatile-char interaction time) did not affect the N retention, the carbon structure revealed by Raman analysis dramatically altered. © 2022 Elsevier Ltd
Joint International Research Laboratory of Biomass Energy and Materials, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China; Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran; Faculty of Engineering, Universitas Negeri Semarang (UNNES), Jawa Tengah, 50229, Indonesia; School of Material Science and Engineering, University of Jinan, Shandong, Jinan, 250022, China
