Characteristics of coal mine ventilation air flows.

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Characteristics of coal mine ventilation air flows. Abstract Text:

Shi Su,Hongwei Chen,Philip Teakle,Sheng Xue,Shi Su,Hongwei Chen,Philip Teakle,Sheng Xue,Shi Su,Hongwei Chen,Philip Teakle,Sheng Xue,

Coal mine methane (CMM) is not only a greenhouse gas but also a wasted energy resource if not utilised. Underground coal mining is by far the most important source of fugitive methane emissions, and approximately 70% of all coal mining related methane is emitted to the atmosphere through mine ventilation air. Therefore, research and development on mine methane mitigation and utilisation now focuses on methane emitted from underground coal mines, in particular ventilation air methane (VAM) capture and utilisation. To date, most work has focused on the oxidation of very low concentration methane. These processes may be classified based on their combustion kinetic mechanisms into thermal oxidation and catalytic oxidation. VAM mitigation/utilisation technologies are generally divided into two basic categories: ancillary uses and principal uses. However, it is possible that the characteristics of ventilation air flows, for example the variations in methane concentration and the presence of certain compounds, which have not been reported so far, could make some potential VAM mitigation and utilisation technologies unfeasible if they cannot cope with the characteristics of mine site ventilation air flows. Therefore, it is important to understand the characteristics of mine ventilation air flows. Moreover, dust, hydrogen sulphide, sulphur dioxide, and other possible compounds emitted through mine ventilation air into the atmosphere are also pollutants. Therefore, this paper presents mine-site experimental results on the characteristics of mine ventilation air flows, including methane concentration and its variations, dust loadings, particle size, mineral matter of the dust, and other compounds in the ventilation air flows. The paper also discusses possible correlations between ventilation air characteristics and underground mining activities.

Characteristics of coal mine ventilation air flows. Publishing Authors By Initials

S Su,H Chen,P Teakle,S Xue,S Su,H Chen,P Teakle,S Xue,S Su,H Chen,P Teakle,S Xue,

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Characteristics of coal mine ventilation air flows. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of environmental management

VOLUME: 86

Page Numbers: 44-62

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ISSN: 0301-4797

DAY: 18

MONTH: 01

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: CSIRO Exploration and Mining, P.O. Box 883, Kenmore, Qld 4069, Australia.

Country: England

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MEDLINETA: J Environ Manage

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