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Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge

Diego López Barreiro, Francisco Martin-Martinez Orcid Logo, Shengfei Zhou Orcid Logo, Ixone Sagastagoia, Francisco del Molino Pérez, Francisco Javier Arrieta Morales, Markus J. Buehler

Journal of Environmental Chemical Engineering, Volume: 10, Issue: 6, Start page: 108974

Swansea University Author: Francisco Martin-Martinez Orcid Logo

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DOI (Published version): 10.1016/j.jece.2022.108974

Abstract

Sewage sludge from wastewater treatment plants is a large source of organic waste with suboptimal disposal solutions available. Current common handling solutions include disposing of it as fertilizer on arable land, or direct discharge in the sea. This work investigates the valorization of sewage sl...

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Published in: Journal of Environmental Chemical Engineering
ISSN: 2213-3437
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61961
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Biocrude oils are bitumen-like materials with potential applications as green additives for asphalt binder, one of the most used materials in infrastructure. Here, we study the links for sewage sludge between feedstock (digested versus non-digested sludge), HTL conditions (temperature, biomass loading to the reactor and reaction time) and yields of biocrude oil. Our data suggests that non-digested sewage sludge leads to higher biocrude oil yields (30&#x2013;40 wt%) at temperatures of 300&#x2013;320 &#xB0;C and biomass loadings of 20 wt%. Furthermore, we use density functional theory (DFT) calculations to study the reactivity and clustering mechanisms of asphaltenes &#x2013; a key molecular component of asphalt binder, and largely responsible for its mechanical performance. Biobased asphaltenes are present in biocrude oil, and our aim was to understand their differences with fossil asphaltenes derived from petroleum. Our data suggests that biobased asphaltenes are similar to petroleum-based ones in terms of thermodynamic stability and &#x3C0;-&#x3C0; stacking, despite the higher content in polar chemical functionalities in biobased asphaltenes. Overall, the chemical features and intermolecular interactions indicate that biocrude oils produced from sewage sludge via HTL are promising candidates for application as asphalt additives.</abstract><type>Journal Article</type><journal>Journal of Environmental Chemical Engineering</journal><volume>10</volume><journalNumber>6</journalNumber><paginationStart>108974</paginationStart><paginationEnd/><publisher>Elsevier BV</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>2213-3437</issnPrint><issnElectronic/><keywords>Biocrude oil; Hydrothermal liquefaction; Density functional theory; Asphalt; Sewage sludge</keywords><publishedDay>1</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2022</publishedYear><publishedDate>2022-12-01</publishedDate><doi>10.1016/j.jece.2022.108974</doi><url/><notes/><college>COLLEGE NANME</college><department>Chemistry</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>CHEM</DepartmentCode><institution>Swansea University</institution><apcterm/><funders>MITEI, Ferrovial and Cadagua are acknowledged for the financial support of this research. 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All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND)</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by-nc-nd/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2022-12-16T16:52:41.8586370 v2 61961 2022-11-21 Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge a5907aac618ec107662c888f6ead0e4a 0000-0001-7149-5512 Francisco Martin-Martinez Francisco Martin-Martinez true false 2022-11-21 CHEM Sewage sludge from wastewater treatment plants is a large source of organic waste with suboptimal disposal solutions available. Current common handling solutions include disposing of it as fertilizer on arable land, or direct discharge in the sea. This work investigates the valorization of sewage sludge into biocrude oils using hydrothermal liquefaction (HTL). Biocrude oils are bitumen-like materials with potential applications as green additives for asphalt binder, one of the most used materials in infrastructure. Here, we study the links for sewage sludge between feedstock (digested versus non-digested sludge), HTL conditions (temperature, biomass loading to the reactor and reaction time) and yields of biocrude oil. Our data suggests that non-digested sewage sludge leads to higher biocrude oil yields (30–40 wt%) at temperatures of 300–320 °C and biomass loadings of 20 wt%. Furthermore, we use density functional theory (DFT) calculations to study the reactivity and clustering mechanisms of asphaltenes – a key molecular component of asphalt binder, and largely responsible for its mechanical performance. Biobased asphaltenes are present in biocrude oil, and our aim was to understand their differences with fossil asphaltenes derived from petroleum. Our data suggests that biobased asphaltenes are similar to petroleum-based ones in terms of thermodynamic stability and π-π stacking, despite the higher content in polar chemical functionalities in biobased asphaltenes. Overall, the chemical features and intermolecular interactions indicate that biocrude oils produced from sewage sludge via HTL are promising candidates for application as asphalt additives. Journal Article Journal of Environmental Chemical Engineering 10 6 108974 Elsevier BV 2213-3437 Biocrude oil; Hydrothermal liquefaction; Density functional theory; Asphalt; Sewage sludge 1 12 2022 2022-12-01 10.1016/j.jece.2022.108974 COLLEGE NANME Chemistry COLLEGE CODE CHEM Swansea University MITEI, Ferrovial and Cadagua are acknowledged for the financial support of this research. Computational calculations were performed on the MIT Engaging Cluster (funded by DoD-DURIP) and the Extreme Science and Engineering Discovery Environment (XSEDE) which is supported by the National Science Foundation grant number TG-MSS090007. 2022-12-16T16:52:41.8586370 2022-11-21T09:36:24.3200128 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemistry Diego López Barreiro 1 Francisco Martin-Martinez 0000-0001-7149-5512 2 Shengfei Zhou 0000-0002-2144-2567 3 Ixone Sagastagoia 4 Francisco del Molino Pérez 5 Francisco Javier Arrieta Morales 6 Markus J. Buehler 7 Under embargo Under embargo 2022-12-16T16:48:37.1597390 Output 1217528 application/pdf Accepted Manuscript true 2023-11-14T00:00:00.0000000 ©2022 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge
spellingShingle Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge
Francisco Martin-Martinez
title_short Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge
title_full Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge
title_fullStr Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge
title_full_unstemmed Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge
title_sort Biobased additives for asphalt applications produced from the hydrothermal liquefaction of sewage sludge
author_id_str_mv a5907aac618ec107662c888f6ead0e4a
author_id_fullname_str_mv a5907aac618ec107662c888f6ead0e4a_***_Francisco Martin-Martinez
author Francisco Martin-Martinez
author2 Diego López Barreiro
Francisco Martin-Martinez
Shengfei Zhou
Ixone Sagastagoia
Francisco del Molino Pérez
Francisco Javier Arrieta Morales
Markus J. Buehler
format Journal article
container_title Journal of Environmental Chemical Engineering
container_volume 10
container_issue 6
container_start_page 108974
publishDate 2022
institution Swansea University
issn 2213-3437
doi_str_mv 10.1016/j.jece.2022.108974
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemistry{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemistry
document_store_str 0
active_str 0
description Sewage sludge from wastewater treatment plants is a large source of organic waste with suboptimal disposal solutions available. Current common handling solutions include disposing of it as fertilizer on arable land, or direct discharge in the sea. This work investigates the valorization of sewage sludge into biocrude oils using hydrothermal liquefaction (HTL). Biocrude oils are bitumen-like materials with potential applications as green additives for asphalt binder, one of the most used materials in infrastructure. Here, we study the links for sewage sludge between feedstock (digested versus non-digested sludge), HTL conditions (temperature, biomass loading to the reactor and reaction time) and yields of biocrude oil. Our data suggests that non-digested sewage sludge leads to higher biocrude oil yields (30–40 wt%) at temperatures of 300–320 °C and biomass loadings of 20 wt%. Furthermore, we use density functional theory (DFT) calculations to study the reactivity and clustering mechanisms of asphaltenes – a key molecular component of asphalt binder, and largely responsible for its mechanical performance. Biobased asphaltenes are present in biocrude oil, and our aim was to understand their differences with fossil asphaltenes derived from petroleum. Our data suggests that biobased asphaltenes are similar to petroleum-based ones in terms of thermodynamic stability and π-π stacking, despite the higher content in polar chemical functionalities in biobased asphaltenes. Overall, the chemical features and intermolecular interactions indicate that biocrude oils produced from sewage sludge via HTL are promising candidates for application as asphalt additives.
published_date 2022-12-01T04:21:12Z
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score 11.013148

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