Sewage sludge treatment via hydrothermal carbonization combined with supercritical water gasification: Fuel production and pollution degradation

Hongyu Feng; Jintao Cui; Zhang Xu; Dwi Hantoko; Li Zhong; Donghai Xu; Mi Yan

doi:10.1016/j.renene.2023.04.071

Sewage sludge treatment via hydrothermal carbonization combined with supercritical water gasification: Fuel production and pollution degradation

Hongyu Feng
, Jintao Cui
, Zhang Xu
, Dwi Hantoko
, Li Zhong
, Donghai Xu
, Mi Yan^*

^*Corresponding author for this work

Interdisciplinary Research Center for Refining and Advanced Chemicals

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

Aqueous phase byproduct from hydrothermal carbonization of sludge (named AHT) has high COD and TOC, supercritical water gasification (SCWG)can efficiently convert AHT into rich-H₂ syngas. This study investigated the effect of temperature on syngas production, elements distribution and pollutants decomposition during the HTC of sewage sludge and SCWG of AHT. Compared to traditional directly SCWG of sludge, the combined method could produce syngas with higher H₂ proportion and lower gaseous sulfur concentration. The maximum H₂ proportion and carbon conversion efficiency (CE) in syngas could reach 59% and 30.40%. Meanwhile, higher SCWG temperature can reduce the sulfur concentration of syngas. SCWG effectively reduce the COD and TOC in AHT. With HTC and SCWG temperature increased, the concentration of total nitrogen (TN) gradually decreased but NH₄⁺ ions concentration (NH₄⁺-N) increased in aqueous phase product.

Original language	English
Pages (from-to)	822-831
Number of pages	10
Journal	Renewable Energy
Volume	210
DOIs	https://doi.org/10.1016/j.renene.2023.04.071
State	Published - Jul 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Ltd

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 13 Climate Action

Keywords

Hydrogen
Hydrothermal carbonization
Sewage sludge
Sulfur
Supercritical water gasification

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment

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10.1016/j.renene.2023.04.071

Cite this

@article{4e1875f9a30045a1a0794810f18d4841,

title = "Sewage sludge treatment via hydrothermal carbonization combined with supercritical water gasification: Fuel production and pollution degradation",

abstract = "Aqueous phase byproduct from hydrothermal carbonization of sludge (named AHT) has high COD and TOC, supercritical water gasification (SCWG)can efficiently convert AHT into rich-H2 syngas. This study investigated the effect of temperature on syngas production, elements distribution and pollutants decomposition during the HTC of sewage sludge and SCWG of AHT. Compared to traditional directly SCWG of sludge, the combined method could produce syngas with higher H2 proportion and lower gaseous sulfur concentration. The maximum H2 proportion and carbon conversion efficiency (CE) in syngas could reach 59\% and 30.40\%. Meanwhile, higher SCWG temperature can reduce the sulfur concentration of syngas. SCWG effectively reduce the COD and TOC in AHT. With HTC and SCWG temperature increased, the concentration of total nitrogen (TN) gradually decreased but NH4+ ions concentration (NH4+-N) increased in aqueous phase product.",

keywords = "Hydrogen, Hydrothermal carbonization, Sewage sludge, Sulfur, Supercritical water gasification",

author = "Hongyu Feng and Jintao Cui and Zhang Xu and Dwi Hantoko and Li Zhong and Donghai Xu and Mi Yan",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = jul,

doi = "10.1016/j.renene.2023.04.071",

language = "English",

volume = "210",

pages = "822--831",

journal = "Renewable Energy",

issn = "0960-1481",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Sewage sludge treatment via hydrothermal carbonization combined with supercritical water gasification

T2 - Fuel production and pollution degradation

AU - Feng, Hongyu

AU - Cui, Jintao

AU - Xu, Zhang

AU - Hantoko, Dwi

AU - Zhong, Li

AU - Xu, Donghai

AU - Yan, Mi

PY - 2023/7

Y1 - 2023/7

N2 - Aqueous phase byproduct from hydrothermal carbonization of sludge (named AHT) has high COD and TOC, supercritical water gasification (SCWG)can efficiently convert AHT into rich-H2 syngas. This study investigated the effect of temperature on syngas production, elements distribution and pollutants decomposition during the HTC of sewage sludge and SCWG of AHT. Compared to traditional directly SCWG of sludge, the combined method could produce syngas with higher H2 proportion and lower gaseous sulfur concentration. The maximum H2 proportion and carbon conversion efficiency (CE) in syngas could reach 59% and 30.40%. Meanwhile, higher SCWG temperature can reduce the sulfur concentration of syngas. SCWG effectively reduce the COD and TOC in AHT. With HTC and SCWG temperature increased, the concentration of total nitrogen (TN) gradually decreased but NH4+ ions concentration (NH4+-N) increased in aqueous phase product.

AB - Aqueous phase byproduct from hydrothermal carbonization of sludge (named AHT) has high COD and TOC, supercritical water gasification (SCWG)can efficiently convert AHT into rich-H2 syngas. This study investigated the effect of temperature on syngas production, elements distribution and pollutants decomposition during the HTC of sewage sludge and SCWG of AHT. Compared to traditional directly SCWG of sludge, the combined method could produce syngas with higher H2 proportion and lower gaseous sulfur concentration. The maximum H2 proportion and carbon conversion efficiency (CE) in syngas could reach 59% and 30.40%. Meanwhile, higher SCWG temperature can reduce the sulfur concentration of syngas. SCWG effectively reduce the COD and TOC in AHT. With HTC and SCWG temperature increased, the concentration of total nitrogen (TN) gradually decreased but NH4+ ions concentration (NH4+-N) increased in aqueous phase product.

KW - Hydrogen

KW - Hydrothermal carbonization

KW - Sewage sludge

KW - Sulfur

KW - Supercritical water gasification

UR - https://www.scopus.com/pages/publications/85153870132

U2 - 10.1016/j.renene.2023.04.071

DO - 10.1016/j.renene.2023.04.071

M3 - Article

AN - SCOPUS:85153870132

SN - 0960-1481

VL - 210

SP - 822

EP - 831

JO - Renewable Energy

JF - Renewable Energy

ER -

Sewage sludge treatment via hydrothermal carbonization combined with supercritical water gasification: Fuel production and pollution degradation

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this