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Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming

This study focuses on the use of a microwave reactor that combines biomass pyrolysis, at mild temperature, with catalytic reforming of the pyrolytic gas, using activated carbon, for generating hydrogen-rich synthesis gas. The traditional pyrolysis of biomass coupled with the reforming of its pyrolyt...

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Autores principales: Shi, Kaiqi, Yan, Jiefeng, Menéndez, J. Angel, Luo, Xiang, Yang, Gang, Chen, Yipei, Lester, Edward, Wu, Tao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6993598/
https://www.ncbi.nlm.nih.gov/pubmed/32039161
http://dx.doi.org/10.3389/fchem.2020.00003
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author Shi, Kaiqi
Yan, Jiefeng
Menéndez, J. Angel
Luo, Xiang
Yang, Gang
Chen, Yipei
Lester, Edward
Wu, Tao
author_facet Shi, Kaiqi
Yan, Jiefeng
Menéndez, J. Angel
Luo, Xiang
Yang, Gang
Chen, Yipei
Lester, Edward
Wu, Tao
author_sort Shi, Kaiqi
collection PubMed
description This study focuses on the use of a microwave reactor that combines biomass pyrolysis, at mild temperature, with catalytic reforming of the pyrolytic gas, using activated carbon, for generating hydrogen-rich synthesis gas. The traditional pyrolysis of biomass coupled with the reforming of its pyrolytic yields were also conducted using an electrically heated reactor. The bio-oil attained from conventional pyrolysis was higher in comparison to the yield from microwave pyrolysis. The reforming of the pyrolytic gas fraction led to reductions in bio-oil yield to <3.0 wt%, with a simultaneous increase in gaseous yields. An increase in the syngas and H(2) selectivity was discovered with the reforming process such that the use of microwave pyrolysis with activated carbon reforming produced 85 vol% synthesis gas fraction containing 55 vol% H(2) in comparison to the 74 vol% syngas fraction with 30 vol% H(2) obtained without the reforming. Cracking reactions were improved with microwave heating, while deoxidation and dehydrogenation reactions were enhanced by activated carbon, which creates a reduction environment. Consequently, these reactions generated H(2)-rich syngas formation. The approach implemented in this study revealed higher H(2), syngas yield and that the overall LHV of products has huge potential in the transformation of biomass into high-value synthesis gas.
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spelling pubmed-69935982020-02-07 Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming Shi, Kaiqi Yan, Jiefeng Menéndez, J. Angel Luo, Xiang Yang, Gang Chen, Yipei Lester, Edward Wu, Tao Front Chem Chemistry This study focuses on the use of a microwave reactor that combines biomass pyrolysis, at mild temperature, with catalytic reforming of the pyrolytic gas, using activated carbon, for generating hydrogen-rich synthesis gas. The traditional pyrolysis of biomass coupled with the reforming of its pyrolytic yields were also conducted using an electrically heated reactor. The bio-oil attained from conventional pyrolysis was higher in comparison to the yield from microwave pyrolysis. The reforming of the pyrolytic gas fraction led to reductions in bio-oil yield to <3.0 wt%, with a simultaneous increase in gaseous yields. An increase in the syngas and H(2) selectivity was discovered with the reforming process such that the use of microwave pyrolysis with activated carbon reforming produced 85 vol% synthesis gas fraction containing 55 vol% H(2) in comparison to the 74 vol% syngas fraction with 30 vol% H(2) obtained without the reforming. Cracking reactions were improved with microwave heating, while deoxidation and dehydrogenation reactions were enhanced by activated carbon, which creates a reduction environment. Consequently, these reactions generated H(2)-rich syngas formation. The approach implemented in this study revealed higher H(2), syngas yield and that the overall LHV of products has huge potential in the transformation of biomass into high-value synthesis gas. Frontiers Media S.A. 2020-01-24 /pmc/articles/PMC6993598/ /pubmed/32039161 http://dx.doi.org/10.3389/fchem.2020.00003 Text en Copyright © 2020 Shi, Yan, Menéndez, Luo, Yang, Chen, Lester and Wu. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Shi, Kaiqi
Yan, Jiefeng
Menéndez, J. Angel
Luo, Xiang
Yang, Gang
Chen, Yipei
Lester, Edward
Wu, Tao
Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming
title Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming
title_full Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming
title_fullStr Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming
title_full_unstemmed Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming
title_short Production of H(2)-Rich Syngas From Lignocellulosic Biomass Using Microwave-Assisted Pyrolysis Coupled With Activated Carbon Enabled Reforming
title_sort production of h(2)-rich syngas from lignocellulosic biomass using microwave-assisted pyrolysis coupled with activated carbon enabled reforming
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6993598/
https://www.ncbi.nlm.nih.gov/pubmed/32039161
http://dx.doi.org/10.3389/fchem.2020.00003
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