Cargando…
Synthesis of Bio-aromatics from Black Liquors Using Catalytic Pyrolysis
[Image: see text] Bio-aromatics (benzene, toluene, xylenes, BTX) were prepared by the catalytic pyrolysis of six different black liquors using both in situ and ex situ approaches. A wide range of catalysts was screened and conditions were optimized in microscale reactors. Up to 7 wt % of BTX, based...
Autores principales: | , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2018
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5871335/ https://www.ncbi.nlm.nih.gov/pubmed/29607268 http://dx.doi.org/10.1021/acssuschemeng.7b03728 |
_version_ | 1783309629147578368 |
---|---|
author | Heeres, André Schenk, Niels Muizebelt, Inouk Blees, Ricardo De Waele, Bart Zeeuw, Arend-Jan Meyer, Nathalie Carr, Rob Wilbers, Erwin Heeres, Hero Jan |
author_facet | Heeres, André Schenk, Niels Muizebelt, Inouk Blees, Ricardo De Waele, Bart Zeeuw, Arend-Jan Meyer, Nathalie Carr, Rob Wilbers, Erwin Heeres, Hero Jan |
author_sort | Heeres, André |
collection | PubMed |
description | [Image: see text] Bio-aromatics (benzene, toluene, xylenes, BTX) were prepared by the catalytic pyrolysis of six different black liquors using both in situ and ex situ approaches. A wide range of catalysts was screened and conditions were optimized in microscale reactors. Up to 7 wt % of BTX, based on the organic fraction of the black liquors, was obtained for both the in situ and ex situ pyrolysis (T = 500–600 °C) using a Ga-modified H-ZSM-5 catalyst. The in situ catalytic pyrolysis of black liquors from hardwood paper mills afforded slightly higher yields of aromatics/BTX than softwood black liquors, a trend that could be confirmed by the results obtained in the ex situ catalytic pyrolysis. An almost full deoxygenation of the lignin and carbohydrate fraction was achieved and both organic fractions were converted to a broad range of (substituted) aromatics. The zeolite catalyst used was remarkably stable and even after 100 experiments in batch mode with intermittent oxidative catalyst regeneration, the yields and selectivity toward BTX remained similar. The ex situ pyrolysis of black liquor has potential for large-scale implementation in a paper mill without disturbing the paper production process. |
format | Online Article Text |
id | pubmed-5871335 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-58713352018-03-28 Synthesis of Bio-aromatics from Black Liquors Using Catalytic Pyrolysis Heeres, André Schenk, Niels Muizebelt, Inouk Blees, Ricardo De Waele, Bart Zeeuw, Arend-Jan Meyer, Nathalie Carr, Rob Wilbers, Erwin Heeres, Hero Jan ACS Sustain Chem Eng [Image: see text] Bio-aromatics (benzene, toluene, xylenes, BTX) were prepared by the catalytic pyrolysis of six different black liquors using both in situ and ex situ approaches. A wide range of catalysts was screened and conditions were optimized in microscale reactors. Up to 7 wt % of BTX, based on the organic fraction of the black liquors, was obtained for both the in situ and ex situ pyrolysis (T = 500–600 °C) using a Ga-modified H-ZSM-5 catalyst. The in situ catalytic pyrolysis of black liquors from hardwood paper mills afforded slightly higher yields of aromatics/BTX than softwood black liquors, a trend that could be confirmed by the results obtained in the ex situ catalytic pyrolysis. An almost full deoxygenation of the lignin and carbohydrate fraction was achieved and both organic fractions were converted to a broad range of (substituted) aromatics. The zeolite catalyst used was remarkably stable and even after 100 experiments in batch mode with intermittent oxidative catalyst regeneration, the yields and selectivity toward BTX remained similar. The ex situ pyrolysis of black liquor has potential for large-scale implementation in a paper mill without disturbing the paper production process. American Chemical Society 2018-02-01 2018-03-05 /pmc/articles/PMC5871335/ /pubmed/29607268 http://dx.doi.org/10.1021/acssuschemeng.7b03728 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Heeres, André Schenk, Niels Muizebelt, Inouk Blees, Ricardo De Waele, Bart Zeeuw, Arend-Jan Meyer, Nathalie Carr, Rob Wilbers, Erwin Heeres, Hero Jan Synthesis of Bio-aromatics from Black Liquors Using Catalytic Pyrolysis |
title | Synthesis of Bio-aromatics from Black Liquors Using
Catalytic Pyrolysis |
title_full | Synthesis of Bio-aromatics from Black Liquors Using
Catalytic Pyrolysis |
title_fullStr | Synthesis of Bio-aromatics from Black Liquors Using
Catalytic Pyrolysis |
title_full_unstemmed | Synthesis of Bio-aromatics from Black Liquors Using
Catalytic Pyrolysis |
title_short | Synthesis of Bio-aromatics from Black Liquors Using
Catalytic Pyrolysis |
title_sort | synthesis of bio-aromatics from black liquors using
catalytic pyrolysis |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5871335/ https://www.ncbi.nlm.nih.gov/pubmed/29607268 http://dx.doi.org/10.1021/acssuschemeng.7b03728 |
work_keys_str_mv | AT heeresandre synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT schenkniels synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT muizebeltinouk synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT bleesricardo synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT dewaelebart synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT zeeuwarendjan synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT meyernathalie synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT carrrob synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT wilberserwin synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis AT heeresherojan synthesisofbioaromaticsfromblackliquorsusingcatalyticpyrolysis |