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Induced oxidation effects on physical and mechanical properties of lignite

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Title: Induced oxidation effects on physical and mechanical properties of lignite
Other Titles: 褐炭の物理・力学特性に及ぼす酸化の影響
Authors: Akmbadraul, Alam Browse this author
荒牧, 憲隆 Browse this author
玉村, 修司 Browse this author
藤井, 義明 Browse this author →KAKEN DB
金子, 勝比古 Browse this author →KAKEN DB
Keywords: SCG method
Induced oxidation
physical properties
mechanical properties
Issue Date: 28-Mar-2016
Publisher: 資源・素材学会
Journal Title: Spring Meeting of MMIJ
Volume: 2016
Start Page: 1507
Abstract: To produce Low Molecular Weight Organic Compound (LMWOC), the H2O2 solution is being considered for bio-methane production in the Subsurface Cultivation and Gasification (SCG) method. Core samples of about 30 mm in diameter and 60 mm in height were prepared from the lignite blocks collected from stream side in Horonobe, Hokkaido were submerged into 1% H2O2 solution. The changes in physical and mechanical properties were observed by measuring the size, weight, ultrasonic velocity and uniaxial compression test. The swelling, leaching and breakage processes were in action due to reaction of lignite with the H2O2 solution. The density slightly increased and then decreased, and the ultrasonic velocity decreased with reaction time. The mechanism of the phenomenon was mainly due to change in mineral grains forming LMWOC and of microcracks. Lignite became relatively weaker and less stiff after reaction.
Description: Spring Meeting of MMIJ 2016, Mar. 28-30 2016, Tokyo, Japan(資源・素材学会平成28年度春季大会、2016年3月28日(月)~30日(水)、東京大学本郷キャンパス、東京)
Conference Name: Spring Meeting of MMIJ 2016
Conference Place: Tokyo
Type: proceedings
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 藤井 義明

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