Evaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen Peroxide

We proposed a new gasification method that converts unused organic matter in sedimentary rocks to bio methane gas through the use of microorganisms, known as Subsurface Cultivation and Gasification (SCG). Our approach uses hydrogen peroxide (H2O2) to decompose organic matter rapidly into usable subs...

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Main Authors: Noritaka ARAMAKI, Takuma MURAKAMI
Format: Article
Language:English
Published: The Mining and Materials Processing Institute of Japan 2021-05-01
Series:Journal of MMIJ
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/journalofmmij/137/5/137_51/_pdf/-char/en
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author Noritaka ARAMAKI
Takuma MURAKAMI
author_facet Noritaka ARAMAKI
Takuma MURAKAMI
author_sort Noritaka ARAMAKI
collection DOAJ
description We proposed a new gasification method that converts unused organic matter in sedimentary rocks to bio methane gas through the use of microorganisms, known as Subsurface Cultivation and Gasification (SCG). Our approach uses hydrogen peroxide (H2O2) to decompose organic matter rapidly into usable substrates for methanogens. We previously reported that H2O2 would be useful for effective SCG at lignite, and conversion of organic matter from lignite into biogenic methane with the help of microorganisms is expected to be highly profitable. However, changes of physical properties of the sedimentary rock seem to occur due to decomposition of sedimentary rock in the biogenic methane conversion with the SCG method. In this study, immersion tests using a H2O2 solution were performed on two types of lignite to estimate the quantity of low-molecular-weight organic acids and the producing potential for biogenic methane gas. In addition, mass loss rate of lignite with oxidative decomposition of lignite was examined. The mass loss of lignite with the oxidative decomposition increased with increasing the amount of substance in H2O2. Furthermore, it was confirmed that the loss rate depends on the lignite. The biomethane deposits might become mechanically unstable during promoting decomposition of organic matter of lignite seams, if lignite has the greater resource potential for biomethane.
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spelling doaj.art-f4acea22fd314b559eacc82d7f002c0f2023-08-10T09:21:13ZengThe Mining and Materials Processing Institute of JapanJournal of MMIJ1881-61181884-04502021-05-011375515510.2473/journalofmmij.137.51journalofmmijEvaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen PeroxideNoritaka ARAMAKI0Takuma MURAKAMI1National Institute of Technology (KOSEN)Horonobe Research Institute for the Subsurface Environment, Northern Advancement Center for Science and TechnologyWe proposed a new gasification method that converts unused organic matter in sedimentary rocks to bio methane gas through the use of microorganisms, known as Subsurface Cultivation and Gasification (SCG). Our approach uses hydrogen peroxide (H2O2) to decompose organic matter rapidly into usable substrates for methanogens. We previously reported that H2O2 would be useful for effective SCG at lignite, and conversion of organic matter from lignite into biogenic methane with the help of microorganisms is expected to be highly profitable. However, changes of physical properties of the sedimentary rock seem to occur due to decomposition of sedimentary rock in the biogenic methane conversion with the SCG method. In this study, immersion tests using a H2O2 solution were performed on two types of lignite to estimate the quantity of low-molecular-weight organic acids and the producing potential for biogenic methane gas. In addition, mass loss rate of lignite with oxidative decomposition of lignite was examined. The mass loss of lignite with the oxidative decomposition increased with increasing the amount of substance in H2O2. Furthermore, it was confirmed that the loss rate depends on the lignite. The biomethane deposits might become mechanically unstable during promoting decomposition of organic matter of lignite seams, if lignite has the greater resource potential for biomethane.https://www.jstage.jst.go.jp/article/journalofmmij/137/5/137_51/_pdf/-char/enbio-methaneligniteorganic matter decompositionhydrogen peroxidemass losssubsurface cultivation and gasification
spellingShingle Noritaka ARAMAKI
Takuma MURAKAMI
Evaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen Peroxide
Journal of MMIJ
bio-methane
lignite
organic matter decomposition
hydrogen peroxide
mass loss
subsurface cultivation and gasification
title Evaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen Peroxide
title_full Evaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen Peroxide
title_fullStr Evaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen Peroxide
title_full_unstemmed Evaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen Peroxide
title_short Evaluation of Methane Production and Mass Loss of Lignite During Promoting Organic Matter Decomposition with Hydrogen Peroxide
title_sort evaluation of methane production and mass loss of lignite during promoting organic matter decomposition with hydrogen peroxide
topic bio-methane
lignite
organic matter decomposition
hydrogen peroxide
mass loss
subsurface cultivation and gasification
url https://www.jstage.jst.go.jp/article/journalofmmij/137/5/137_51/_pdf/-char/en
work_keys_str_mv AT noritakaaramaki evaluationofmethaneproductionandmasslossofligniteduringpromotingorganicmatterdecompositionwithhydrogenperoxide
AT takumamurakami evaluationofmethaneproductionandmasslossofligniteduringpromotingorganicmatterdecompositionwithhydrogenperoxide