Fundamental study on incineration of woody waste including seawater using the two-stage combustion method

The objective of this study is to establish a method of direct combustion that allows safe and effective incineration of difficult-to-process woody waste as well as its utilization as fuel. A tremendous amount of debris including woody waste was washed into the sea by the tsunami of the Great East J...

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Main Authors: Fumiaki ABE, Masaya NAKAHARA, Kenichi TOKUNAGA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2017-01-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/83/846/83_16-00351/_pdf/-char/en
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author Fumiaki ABE
Masaya NAKAHARA
Kenichi TOKUNAGA
author_facet Fumiaki ABE
Masaya NAKAHARA
Kenichi TOKUNAGA
author_sort Fumiaki ABE
collection DOAJ
description The objective of this study is to establish a method of direct combustion that allows safe and effective incineration of difficult-to-process woody waste as well as its utilization as fuel. A tremendous amount of debris including woody waste was washed into the sea by the tsunami of the Great East Japan Earthquake in 2011, and still remains on the coastal seabed. In order to examine the feasibility and effectiveness of incineration of the woody debris containing seawater, combustion experiments are conducted using a small combustor by applying the two-stage combustion method which we developed for woody biomass. Simulated wastes with three different moisture contents (13, 22, 38 %) are prepared by saturating woody chips with artificial seawater. The experiments confirm that the two-stage combustion method is applicable to the combustion of the woody waste containing seawater. In addition, it is clarified that combustion temperature could be widely controlled by changing the amount of air in the range of about 860 to 1250 K in the pyrolytic combustion process and about 820 to 1240 K in the surface combustion process. The results indicate that the two-stage combustion method is effective to reduce salt content in combustion gas, and that a large part of contained salt could be recovered as a residue after incineration. It is also revealed that combustion temperature is an important factor influencing the generation of hydrogen chloride.
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spelling doaj.art-5e67f2f461a1430784e340b18e687a2a2022-12-22T03:41:32ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612017-01-018384616-0035116-0035110.1299/transjsme.16-00351transjsmeFundamental study on incineration of woody waste including seawater using the two-stage combustion methodFumiaki ABE0Masaya NAKAHARA1Kenichi TOKUNAGA2Ehime Univ. Dept. of Mechanical EngineeringEhime Univ. Dept. of Mechanical EngineeringEhime Univ. Faculty of EngineeringThe objective of this study is to establish a method of direct combustion that allows safe and effective incineration of difficult-to-process woody waste as well as its utilization as fuel. A tremendous amount of debris including woody waste was washed into the sea by the tsunami of the Great East Japan Earthquake in 2011, and still remains on the coastal seabed. In order to examine the feasibility and effectiveness of incineration of the woody debris containing seawater, combustion experiments are conducted using a small combustor by applying the two-stage combustion method which we developed for woody biomass. Simulated wastes with three different moisture contents (13, 22, 38 %) are prepared by saturating woody chips with artificial seawater. The experiments confirm that the two-stage combustion method is applicable to the combustion of the woody waste containing seawater. In addition, it is clarified that combustion temperature could be widely controlled by changing the amount of air in the range of about 860 to 1250 K in the pyrolytic combustion process and about 820 to 1240 K in the surface combustion process. The results indicate that the two-stage combustion method is effective to reduce salt content in combustion gas, and that a large part of contained salt could be recovered as a residue after incineration. It is also revealed that combustion temperature is an important factor influencing the generation of hydrogen chloride.https://www.jstage.jst.go.jp/article/transjsme/83/846/83_16-00351/_pdf/-char/ensolid combustionwoody wasteseawatertwo-stage combustion method
spellingShingle Fumiaki ABE
Masaya NAKAHARA
Kenichi TOKUNAGA
Fundamental study on incineration of woody waste including seawater using the two-stage combustion method
Nihon Kikai Gakkai ronbunshu
solid combustion
woody waste
seawater
two-stage combustion method
title Fundamental study on incineration of woody waste including seawater using the two-stage combustion method
title_full Fundamental study on incineration of woody waste including seawater using the two-stage combustion method
title_fullStr Fundamental study on incineration of woody waste including seawater using the two-stage combustion method
title_full_unstemmed Fundamental study on incineration of woody waste including seawater using the two-stage combustion method
title_short Fundamental study on incineration of woody waste including seawater using the two-stage combustion method
title_sort fundamental study on incineration of woody waste including seawater using the two stage combustion method
topic solid combustion
woody waste
seawater
two-stage combustion method
url https://www.jstage.jst.go.jp/article/transjsme/83/846/83_16-00351/_pdf/-char/en
work_keys_str_mv AT fumiakiabe fundamentalstudyonincinerationofwoodywasteincludingseawaterusingthetwostagecombustionmethod
AT masayanakahara fundamentalstudyonincinerationofwoodywasteincludingseawaterusingthetwostagecombustionmethod
AT kenichitokunaga fundamentalstudyonincinerationofwoodywasteincludingseawaterusingthetwostagecombustionmethod