Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge

Hydrothermal liquefaction (HTL) can be considered a promising route for the energy valorisation of waste sewage sludge (SS). However, not much information is available on continuous flow processing. In this study, the mixed SS was subjected to HTL at 350°C for 8 min in a continuous reactor with load...
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Autor*in:	Yujie Fan [verfasserIn] Claudia Prestigiacomo [verfasserIn] Miao Gong [verfasserIn] Thomas Tietz [verfasserIn] Ursel Hornung [verfasserIn] Nicolaus Dahmen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	sewage sludge HTL continuous processing biocrude nitrogen

Übergeordnetes Werk:	In: Frontiers in Environmental Science - Frontiers Media S.A., 2014, 10(2022)
Übergeordnetes Werk:	volume:10 ; year:2022

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/fenvs.2022.996353

Katalog-ID:	DOAJ034950907

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source	In Frontiers in Environmental Science 10(2022) volume:10 year:2022
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topic_facet	sewage sludge HTL continuous processing biocrude nitrogen Environmental sciences
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container_title	Frontiers in Environmental Science
authorswithroles_txt_mv	Yujie Fan @@aut@@ Claudia Prestigiacomo @@aut@@ Miao Gong @@aut@@ Thomas Tietz @@aut@@ Ursel Hornung @@aut@@ Nicolaus Dahmen @@aut@@
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callnumber-first	G - Geography, Anthropology, Recreation
author	Yujie Fan
spellingShingle	Yujie Fan misc GE1-350 misc sewage sludge misc HTL misc continuous processing misc biocrude misc nitrogen misc Environmental sciences Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge
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topic_title	GE1-350 Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge sewage sludge HTL continuous processing biocrude nitrogen
topic	misc GE1-350 misc sewage sludge misc HTL misc continuous processing misc biocrude misc nitrogen misc Environmental sciences
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title	Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge
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title_full	Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge
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author_browse	Yujie Fan Claudia Prestigiacomo Miao Gong Thomas Tietz Ursel Hornung Nicolaus Dahmen
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title_sort	comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge
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title_auth	Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge
abstract	Hydrothermal liquefaction (HTL) can be considered a promising route for the energy valorisation of waste sewage sludge (SS). However, not much information is available on continuous flow processing. In this study, the mixed SS was subjected to HTL at 350°C for 8 min in a continuous reactor with loadings of 10 wt% in the feed flow. The results show that the mass recovery reached 88%, with a biocrude yield of 30.8 wt% (3.9 wt% N content). The recovered biocrude yields are highly dependent on the selection of the recovery solvent for extraction, and dichloromethane can contribute an additional 3.1 wt% biocrude from aqueous phase, acetone can extract some pyrrole derivatives into the trapped phases. Comparable results were also achieved by performing batch reactions under the same conditions: a slightly higher biocrude yield (33.1 wt%) with an N content of 4.3 wt%. The higher N content observed in the biocrude from the batch process indicates that interactions and chelation between intermediates are enhanced during heating up and cooling period, which lead to more N-containing compounds.
abstractGer	Hydrothermal liquefaction (HTL) can be considered a promising route for the energy valorisation of waste sewage sludge (SS). However, not much information is available on continuous flow processing. In this study, the mixed SS was subjected to HTL at 350°C for 8 min in a continuous reactor with loadings of 10 wt% in the feed flow. The results show that the mass recovery reached 88%, with a biocrude yield of 30.8 wt% (3.9 wt% N content). The recovered biocrude yields are highly dependent on the selection of the recovery solvent for extraction, and dichloromethane can contribute an additional 3.1 wt% biocrude from aqueous phase, acetone can extract some pyrrole derivatives into the trapped phases. Comparable results were also achieved by performing batch reactions under the same conditions: a slightly higher biocrude yield (33.1 wt%) with an N content of 4.3 wt%. The higher N content observed in the biocrude from the batch process indicates that interactions and chelation between intermediates are enhanced during heating up and cooling period, which lead to more N-containing compounds.
abstract_unstemmed	Hydrothermal liquefaction (HTL) can be considered a promising route for the energy valorisation of waste sewage sludge (SS). However, not much information is available on continuous flow processing. In this study, the mixed SS was subjected to HTL at 350°C for 8 min in a continuous reactor with loadings of 10 wt% in the feed flow. The results show that the mass recovery reached 88%, with a biocrude yield of 30.8 wt% (3.9 wt% N content). The recovered biocrude yields are highly dependent on the selection of the recovery solvent for extraction, and dichloromethane can contribute an additional 3.1 wt% biocrude from aqueous phase, acetone can extract some pyrrole derivatives into the trapped phases. Comparable results were also achieved by performing batch reactions under the same conditions: a slightly higher biocrude yield (33.1 wt%) with an N content of 4.3 wt%. The higher N content observed in the biocrude from the batch process indicates that interactions and chelation between intermediates are enhanced during heating up and cooling period, which lead to more N-containing compounds.
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title_short	Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge
url	https://doi.org/10.3389/fenvs.2022.996353 https://doaj.org/article/86fea8542a9d4ffea0a9e41097579fa7 https://www.frontiersin.org/articles/10.3389/fenvs.2022.996353/full https://doaj.org/toc/2296-665X
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author2	Yujie Fan Claudia Prestigiacomo Miao Gong Thomas Tietz Ursel Hornung Nicolaus Dahmen
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up_date	2024-07-04T01:13:47.884Z
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Comparative investigation on the value-added products obtained from continuous and batch hydrothermal liquefaction of sewage sludge

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