N-doping of biomass by ammonia (NH) torrefaction pretreatment for the production of renewable N-containing chemicals by fast pyrolysis.

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ID: 14801
2019
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Abstract
In this work, ammonia (NH) torrefaction pretreatment was developed for the production of nitrogen-enriched lignocellulosic biomass and the production of N-containing chemicals via subsequent fast pyroysis process. Results showed that the content of nitrogen in biomass was significantly increased from 0.03% to 7.59% as the torrefaction temperature increased. XPS analysis showed that nitrogen-doped biomass mainly contained three types of N-containing functional groups, such as quaternary-N, pyrrolic-N, and pyridinic-N. Higher torrefaction temperature promoted the formation of pyrrolic-N, and quaternary-N, but inhibited pyridinic-N. Py-GC/MS analysis showed that higher torrefaction temperature and higher pyrolysis temperature both promoted the formation of N-containing chemicals (pyridines, pyrroles, and amines), which reached a maximum abundance of 19.89%. Amines were the dominant components in N-containing chemical fraction, accounting for 85.27% of the total chemical fraction. Lower torrefaction temperature and lower pyrolysis temperature were preferred for the production of pyridines and pyrroles.
Reference Key
ma2019ndopingbioresource Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ma, Zhongqing;Zhang, Yu;Li, Cong;Yang, Youyou;Zhang, Wenbiao;Zhao, Chao;Wang, Shurong;
Journal Bioresource technology
Year 2019
DOI
S0960-8524(19)31264-7
URL
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