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Comparative Assessment of Proportions of Urea in Blend for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil and Biochar
[Image: see text] This study aimed to investigate the effect of the urea content on the characteristics and distribution of nitrogen-rich bio-oil and nitrogen-doped biochar. Cellulose, cellobiose, and glucose were used as feedstock. Urea was used as the exogenous nitrogen source in nitrogen-rich pyr...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9835651/ https://www.ncbi.nlm.nih.gov/pubmed/36643424 http://dx.doi.org/10.1021/acsomega.2c06643 |
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author | He, Zhisen Liu, Shanjian Zhao, Wenjing Yin, Mengqian Jiang, Mei Bi, Dongmei |
author_facet | He, Zhisen Liu, Shanjian Zhao, Wenjing Yin, Mengqian Jiang, Mei Bi, Dongmei |
author_sort | He, Zhisen |
collection | PubMed |
description | [Image: see text] This study aimed to investigate the effect of the urea content on the characteristics and distribution of nitrogen-rich bio-oil and nitrogen-doped biochar. Cellulose, cellobiose, and glucose were used as feedstock. Urea was used as the exogenous nitrogen source in nitrogen-rich pyrolysis at 500 °C. The order of the nitrogen increase in the nitrogen-doped biochar was cellulose < cellobiose < glucose. Nitrogen-doped biochar consisted of abundant nitrogen and nitrogenous functional groups, and the stability of biochar was optimal. The nitrogen-doped biochar obtained from cellulose showed the optimal adsorption performance for diethyl phthalate with 50% urea addition. When the proportion of urea was 20%, the content of anhydro-sugars in bio-oil reached the maximum value (61.86%). Furans and other small-molecule oxygenates were intermediates to produce nitrogenous heterocyclic compounds (NHCs) from cellulose. When the proportion of urea was 40%, the bio-oil had the highest selectivity (91.63%) of NHCs. The NHCs in the obtained bio-oil mainly consisted of pyrroles, pyrimidines, pyridines, imidazoles, and pyrazines. Therefore, the excellent proportion of urea in the blend could promote the generation of high-value NHCs and nitrogen-doped biochar from the nitrogen-rich pyrolysis of cellulose (and its model compounds). |
format | Online Article Text |
id | pubmed-9835651 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-98356512023-01-13 Comparative Assessment of Proportions of Urea in Blend for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil and Biochar He, Zhisen Liu, Shanjian Zhao, Wenjing Yin, Mengqian Jiang, Mei Bi, Dongmei ACS Omega [Image: see text] This study aimed to investigate the effect of the urea content on the characteristics and distribution of nitrogen-rich bio-oil and nitrogen-doped biochar. Cellulose, cellobiose, and glucose were used as feedstock. Urea was used as the exogenous nitrogen source in nitrogen-rich pyrolysis at 500 °C. The order of the nitrogen increase in the nitrogen-doped biochar was cellulose < cellobiose < glucose. Nitrogen-doped biochar consisted of abundant nitrogen and nitrogenous functional groups, and the stability of biochar was optimal. The nitrogen-doped biochar obtained from cellulose showed the optimal adsorption performance for diethyl phthalate with 50% urea addition. When the proportion of urea was 20%, the content of anhydro-sugars in bio-oil reached the maximum value (61.86%). Furans and other small-molecule oxygenates were intermediates to produce nitrogenous heterocyclic compounds (NHCs) from cellulose. When the proportion of urea was 40%, the bio-oil had the highest selectivity (91.63%) of NHCs. The NHCs in the obtained bio-oil mainly consisted of pyrroles, pyrimidines, pyridines, imidazoles, and pyrazines. Therefore, the excellent proportion of urea in the blend could promote the generation of high-value NHCs and nitrogen-doped biochar from the nitrogen-rich pyrolysis of cellulose (and its model compounds). American Chemical Society 2022-12-19 /pmc/articles/PMC9835651/ /pubmed/36643424 http://dx.doi.org/10.1021/acsomega.2c06643 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | He, Zhisen Liu, Shanjian Zhao, Wenjing Yin, Mengqian Jiang, Mei Bi, Dongmei Comparative Assessment of Proportions of Urea in Blend for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil and Biochar |
title | Comparative Assessment
of Proportions of Urea in Blend
for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil
and Biochar |
title_full | Comparative Assessment
of Proportions of Urea in Blend
for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil
and Biochar |
title_fullStr | Comparative Assessment
of Proportions of Urea in Blend
for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil
and Biochar |
title_full_unstemmed | Comparative Assessment
of Proportions of Urea in Blend
for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil
and Biochar |
title_short | Comparative Assessment
of Proportions of Urea in Blend
for Nitrogen-Rich Pyrolysis: Characteristics and Distribution of Bio-Oil
and Biochar |
title_sort | comparative assessment
of proportions of urea in blend
for nitrogen-rich pyrolysis: characteristics and distribution of bio-oil
and biochar |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9835651/ https://www.ncbi.nlm.nih.gov/pubmed/36643424 http://dx.doi.org/10.1021/acsomega.2c06643 |
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