Pyrolysis of sewage sludge by solid heat carrier

Gerasimov, G. Ya.; Хасхачих, В. В.; Potapov, O. P.; Dvoskin, G. I.; Kornil’eva, V. F.; Dudkina, L. M.

doi:10.1016/j.wasman.2019.02.016

Cited by 37 publications

(12 citation statements)

References 58 publications

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“…Many studies, such as those of Kan et al, 4 Agar et al, 83 Gerasimov et al, 34 Han et al, 12 Park et al, 74 Inguanzo et al, 91 Sanchez et al, 92 Abrego et al, 93 Xiong et al, 94 Jaramillo-Arango et al, 95 Dai et al, 96 Trinh et al 42 ature. However, especially for the gaseous products, Park et al, 74 working in the range of 446−720 °C, did not report H 2 among the main products.…”

Section: Sewage Sludge Pyrolsyismentioning

confidence: 99%

“…83 Many studies have investigated the effect of the heating rate on sewage sludge pyrolysis. Among them, we can enumerate the studies of Kan et al, 4 Urych and Smolinski, 17 Gerasimov et al, 34 and Inguanzo et al 91 In the work of Kan et al, 4 the effects of heating rates of 10, 40, 70, and 100 °C/min from room temperature to 1000 °C on sewage sludge pyrolysis were investigated. At an elevated heating rate, more mass loss is observed at high temperatures, and endothermic reactions mainly occur between 150 and 300 °C, while exothermic reactions occur between 500 and 600 °C.…”

Section: Sewage Sludge Pyrolsyismentioning

confidence: 99%

“…At an elevated heating rate, more mass loss is observed at high temperatures, and endothermic reactions mainly occur between 150 and 300 °C, while exothermic reactions occur between 500 and 600 °C. Gerasimov et al 34 compared the effect of 500 °C/min to that of 10 These authors underlined that the impact of the heating rate on sewage sludge pyrolysis is significant only at temperatures lower than 450 °C, while the effect is negligible above 650 °C. This is attributed to the enhanced cracking reactions due to the increased heating rate at low temperatures, while at temperatures above 650 °C, decarbonylation of the oxygencontaining hydrocarbons dominates the cracking reactions.…”

Section: Sewage Sludge Pyrolsyismentioning

confidence: 99%

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Pyrolysis of Municipal Sewage Sludge for Biofuel Production: A Review

Djandja

Wang

et al. 2020

Ind. Eng. Chem. Res.

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Among the various problems the world is facing, two problems are addressed in this paper. On the one hand, biomass, the fourth largest and most important renewable energy option that can provide different forms of energy, is criticized because it competes, sometimes, with the food chain. On the other hand, the amount of municipal sewage sludge has continued to increase over the years, and its disposal remains a crucial point of discussion between urban planners, wastewater managers, and leaders of environmental protection. To address this problem, researchers are directing their focus toward alternatives to conventional biomass resources, such as organic wastes and residues. Thus, municipal sewage sludge is a likely candidate for energy and high-value added material production. Regarding this issue, one of the main methods proposed by researchers is the pyrolysis process. The aim of this paper is to review the research conducted on sewage sludge conversion through the pyrolysis process. After characterizing municipal sewage sludge, we present a summary of the sewage sludge pyrolysis process. Then, the effects of some of the most influential parameters are examined. The last main part of this work is dedicated to the nitrogen transformation pathway during this process.

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Section: Sewage Sludge Pyrolsyismentioning

confidence: 99%

Section: Sewage Sludge Pyrolsyismentioning

confidence: 99%

Section: Sewage Sludge Pyrolsyismentioning

confidence: 99%

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Pyrolysis of Municipal Sewage Sludge for Biofuel Production: A Review

Djandja

Wang

et al. 2020

Ind. Eng. Chem. Res.

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“…Generally, the heat treatment of sludge refers to combustion and pyrolysis. Compared with other methods, the pyrolysis process of sludge has obvious advantages, [8] such as effectively fixing heavy metals and great reduction of sludge capacity. In addition, high pyrolysis temperature can effectively eliminate pathogens and microorganisms carried in sludge.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of predried dyeing sludge: Weight loss characteristics, surface morphology, functional groups and kinetic analysis

Wang

Xu²,

Cao

et al. 2021

Can J Chem Eng

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The weight loss characteristics, surface morphology, functional group, and kinetic parameters of predried dyeing sludge (PDS) pyrolysis was studied for the first time in this paper. The contents of both volatile matter and organic matter in PDS char both decreased with the increase of pyrolysis temperature. The PDS pyrolysis process can be divided into four stages: S 1 (30 C-180 C)-water evaporation, S 2 (180 C-500 C)-decomposition of organic compounds such as aliphatic compounds and biomass fibres, S 3 (500 C-900 C)-decomposition of the former stage residues, and S 4 (900 C-1350 C)-decomposition of carbonaceous material remaining in the char and vaporization of partial ash. With the increase

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“…However, due to the presence of potential toxic compounds (e.g. polycyclic aromatic hydrocarbon, heavy metals, dioxins, furans or drugs) the EU restricted the utilisation of SS in agriculture for soil fertilization [9][10][11][12].…”

mentioning

confidence: 99%

Thermochemical Decomposition of Sewage Sludge � An Eco-Friendly Solution for a Sustainable Energy Future by Using Wastes

Zaharioiu¹,

Bucura²,

Ionete³

et al. 2020

Rev. Chim.

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The study aims to promote clean energy technologies that ensure the recycling and recovery of waste, namely the sewage sludge (SS), by converting it into products (e.g. oil, gas) with added value, contributing thus to reducing the negative impact on environment and health. An experimental setup was proposed in order to achieve the pyrolysis process, by varying the heating rate, (5�C/min, 10�C/min and 50�C/min). The resulted products, namely i) char - SSPyChar, ii) oil - SSPyOil and iii) gas - SSPyGas, were investigated in terms of elemental content, high heat value (HHV), low heat value (LHV) and emission factor (EF). The pyrolysis oils obtained with lower heating rate, 5�C/min and 10 �C/min, presented higher HHV, in comparison with the oils obtained at 50 �C/min, which were rich in water. These oils can have a negative impact on the environment, through their combustion due to their high content of N (6 wt%) and S (1.2 wt%), responsible for the formation of NOx and SOx. Pyrolysis gas revealed in its composition high contents of hydrocarbons (C1-C6), carbon dioxide (CO2) and hydrogen (H2). The highest HHV was obtained by using 5�C/min increment, namely 33.81 MJ/m3. Also, the pyrolysis gases had comparable energy values with natural gas, biogas or gases resulted from the plastic pyrolysis.

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Pyrolysis of sewage sludge by solid heat carrier

Cited by 37 publications

References 58 publications

Pyrolysis of Municipal Sewage Sludge for Biofuel Production: A Review

Pyrolysis of Municipal Sewage Sludge for Biofuel Production: A Review

Pyrolysis of predried dyeing sludge: Weight loss characteristics, surface morphology, functional groups and kinetic analysis

Thermochemical Decomposition of Sewage Sludge � An Eco-Friendly Solution for a Sustainable Energy Future by Using Wastes

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