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首页> 外文期刊>資源と素材: 资源·素材学会志 >Study on Estimation of Methane Emission from Abandoned Coal Mines
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Study on Estimation of Methane Emission from Abandoned Coal Mines

机译：废弃煤矿甲烷排放估算研究

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Ishikari coal field is the gassiest coal field in Japan. There is no operating coal mine in this coal field, but there are many closed coal mines. From these coal mines, methane has been emitted into the atmosphere. This is a significant problem for global warming because global warming potential of methane is twenty one times as much as that of carbon dioxide. Therefore, we plan to use the methane emitted from the closed coal mines as fuel for a small scale generator and inject the exhaust generated by the egines of electric generation into the gob area of the closed coal mines. Injected carbon dioxide is absorbed by coal remaining in the gob area and replaces methane absorbed on coal surface. Fig. 1 shows the outline of the utilization of CMM and CO_2 injection system. In order to make it clear, some investigations have been carried out at Akabira Mine and laboratory tests have been carried out at Hokkaido University. The subujects of these investigations and tests are shown as follows; (1) Investigation on gas potential of Akabira Mine (2) Methane emission rate from the shafts into atmosphere (3) Communication among shafts and gas potential of each shaft (4) Estimation of methane production from the New Akabira Mine. From the results of these investigation and tests, there is no different between the measurement results and estimation results. Therefore, we think that above investigation and tests are very useful methods for evaluation and estimation of the recovery CSM from the abandoned coal mine.
机译：Ishikari煤炭领域是日本最可达的煤炭领域。这种煤炭领域没有运行煤矿，但有许多封闭的煤矿。从这些煤矿，甲烷已被排放到大气中。这是全球变暖的重大问题，因为甲烷的全球变暖潜力是二十六倍的二氧化碳。因此，我们计划使用从封闭的煤矿中排出的甲烷作为小型发电机的燃料，并将电器产生的排气注入封闭煤矿的垃圾场。注入的二氧化碳被残留在凝胶区中的煤吸收，并取代煤表面上吸收的甲烷。图。图1示出了CMM和CO_2注射系统的利用率的概要。为了清楚，在北海道大学进行了一些调查，并在北海道大学进行了实验室测试。这些调查和测试的脱扣如下所示; （1）研究Akabira矿井（2）煤炭排放率的煤气潜力在新Akabira矿的每轴和气体电位的轴和气体潜力之间的煤气潜力（3）。从这些调查和测试的结果来看，测量结果和估计结果之间没有不同。因此，我们认为上述调查和测试是评估和估算废弃煤矿回收CSM的非常有用的方法。

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