The Experts below are selected from a list of 58002 Experts worldwide ranked by ideXlab platform
Yuanping Cheng - One of the best experts on this subject based on the ideXlab platform.
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drainage and utilization of chinese Coal mine methane with a Coal methane co exploitation model analysis and projections
Resources Policy, 2012Co-Authors: Lei Wang, Yuanping ChengAbstract:Abstract Coal mine methane (CMM) released during Coal mining attributes to unsafe working conditions and environmental impact. China, the largest Coal producer in the world, is facing problems associated with CMM such as fatal gas accidents and intense greenhouse gas emission along the path to deep mining. Complicated geological conditions featured with low permeability, high gas pressure and gas content of Chinese Coal seams have been hindering the Coal extraction. To solve these problems, a model of Coal–methane co-exploitation is proposed. This model realizes the extraction of two resources with safety ensured and has been successfully applied in Huainan Coalfield, China. The current situation of drainage and utilization of CMM in China are diagnosed. Connections between the Coal Production, methane emissions, drainage and utilization are analyzed. Estimations of future Coal Production, methane emissions, drainage and utilization are made in a co-exploitation based scenario. The emitted, drained and utilized CMM are projected to reach 26.6, 13.3 and 9.3 billion m 3 , respectively by adapting the assumption of 3800 million metric tons of Coal Production by 2020.
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environmental impact of Coal mine methane emissions and responding strategies in china
International Journal of Greenhouse Gas Control, 2011Co-Authors: Yuanping Cheng, Lei Wang, Xiaolei ZhangAbstract:The impact on global climate change from Coal mine methane emissions in China has been drawing attention as Coal Production has powered its economic development. Data on Coal mine methane emissions from the State Administration of Coal Mine Safety of China has been analyzed. It is estimated that the methane emission from Coal mining in China reached 20 billions of cubic meters in 2008, most of which comes from state-owned Coal mines with high-gas content. China releases six times as much of methane from Coal mines as compared to the United States. However, Chinese methane emission from Coal Production accounts for only a very small proportion on the environmental impact when compared to emissions of carbon dioxide from fossil fuel consumption. The Chinese government has shown environmental awareness and resolution on the mitigation and utilization of Coal mine methane emissions. Measures have been taken to implement the programs of mitigation and utilization of Coal mine methane, and at the same time, to ensure mining safety. Nearly 7.2 billions of cubic meters of methane were drained from the Coal mines, and 32% of it was utilized in 2008. The slow advancement of technologies for the drainage and utilization of low-concentration methane from ventilation air hinders the progress of mitigation of atmospheric methane and the utilization of Coal mine methane emissions.
Lei Wang - One of the best experts on this subject based on the ideXlab platform.
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drainage and utilization of chinese Coal mine methane with a Coal methane co exploitation model analysis and projections
Resources Policy, 2012Co-Authors: Lei Wang, Yuanping ChengAbstract:Abstract Coal mine methane (CMM) released during Coal mining attributes to unsafe working conditions and environmental impact. China, the largest Coal producer in the world, is facing problems associated with CMM such as fatal gas accidents and intense greenhouse gas emission along the path to deep mining. Complicated geological conditions featured with low permeability, high gas pressure and gas content of Chinese Coal seams have been hindering the Coal extraction. To solve these problems, a model of Coal–methane co-exploitation is proposed. This model realizes the extraction of two resources with safety ensured and has been successfully applied in Huainan Coalfield, China. The current situation of drainage and utilization of CMM in China are diagnosed. Connections between the Coal Production, methane emissions, drainage and utilization are analyzed. Estimations of future Coal Production, methane emissions, drainage and utilization are made in a co-exploitation based scenario. The emitted, drained and utilized CMM are projected to reach 26.6, 13.3 and 9.3 billion m 3 , respectively by adapting the assumption of 3800 million metric tons of Coal Production by 2020.
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environmental impact of Coal mine methane emissions and responding strategies in china
International Journal of Greenhouse Gas Control, 2011Co-Authors: Yuanping Cheng, Lei Wang, Xiaolei ZhangAbstract:The impact on global climate change from Coal mine methane emissions in China has been drawing attention as Coal Production has powered its economic development. Data on Coal mine methane emissions from the State Administration of Coal Mine Safety of China has been analyzed. It is estimated that the methane emission from Coal mining in China reached 20 billions of cubic meters in 2008, most of which comes from state-owned Coal mines with high-gas content. China releases six times as much of methane from Coal mines as compared to the United States. However, Chinese methane emission from Coal Production accounts for only a very small proportion on the environmental impact when compared to emissions of carbon dioxide from fossil fuel consumption. The Chinese government has shown environmental awareness and resolution on the mitigation and utilization of Coal mine methane emissions. Measures have been taken to implement the programs of mitigation and utilization of Coal mine methane, and at the same time, to ensure mining safety. Nearly 7.2 billions of cubic meters of methane were drained from the Coal mines, and 32% of it was utilized in 2008. The slow advancement of technologies for the drainage and utilization of low-concentration methane from ventilation air hinders the progress of mitigation of atmospheric methane and the utilization of Coal mine methane emissions.
Kjell Aleklett - One of the best experts on this subject based on the ideXlab platform.
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global Coal Production outlooks based on a logistic model
Fuel, 2010Co-Authors: Mikael Höök, Werner Zittel, Jorg Schindler, Kjell AleklettAbstract:A small number of nations control the vast majority of the world’s Coal reserves. The geologically available amounts of Coal are vast, but geological availability is not enough to ensure future Production since economics and restrictions also play an important role. Historical trends in reserve and resource assessments can provide some insight about future Coal supply and provide reasonable limits for modelling. This study uses a logistic model to create long-term outlooks for global Coal Production. A global peak in Coal Production can be expected between 2020 and 2050, depending on estimates of recoverable volumes. This is also compared with other forecasts. The overall conclusion is that the global Coal Production could reach a maximum level much sooner than most observers expect.
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historical trends in american Coal Production and a possible future outlook
International Journal of Coal Geology, 2009Co-Authors: Mikael Höök, Kjell AleklettAbstract:The United States has a vast supply of Coal, with almost 30% of world reserves and more than 1600 Gt (short) as remaining Coal resources. The US is also the world’s second largest Coal producer aft ...
Xiaolei Zhang - One of the best experts on this subject based on the ideXlab platform.
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environmental impact of Coal mine methane emissions and responding strategies in china
International Journal of Greenhouse Gas Control, 2011Co-Authors: Yuanping Cheng, Lei Wang, Xiaolei ZhangAbstract:The impact on global climate change from Coal mine methane emissions in China has been drawing attention as Coal Production has powered its economic development. Data on Coal mine methane emissions from the State Administration of Coal Mine Safety of China has been analyzed. It is estimated that the methane emission from Coal mining in China reached 20 billions of cubic meters in 2008, most of which comes from state-owned Coal mines with high-gas content. China releases six times as much of methane from Coal mines as compared to the United States. However, Chinese methane emission from Coal Production accounts for only a very small proportion on the environmental impact when compared to emissions of carbon dioxide from fossil fuel consumption. The Chinese government has shown environmental awareness and resolution on the mitigation and utilization of Coal mine methane emissions. Measures have been taken to implement the programs of mitigation and utilization of Coal mine methane, and at the same time, to ensure mining safety. Nearly 7.2 billions of cubic meters of methane were drained from the Coal mines, and 32% of it was utilized in 2008. The slow advancement of technologies for the drainage and utilization of low-concentration methane from ventilation air hinders the progress of mitigation of atmospheric methane and the utilization of Coal mine methane emissions.
Yu Feng - One of the best experts on this subject based on the ideXlab platform.
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Life cycle assessment of opencast Coal mine Production: a case study in Yimin mining area in China
Environmental Science and Pollution Research, 2018Co-Authors: Li Zhang, Jinman Wang, Yu FengAbstract:China has the largest Coal Production in the world due to abundant resource requirements for economic development. In recent years, the proportion of opencast Coal mine Production has increased significantly in China. Opencast Coal mining can lead to a large number of environmental problems, including air pollution, water pollution, and solid waste occupation. The previous studies on the environmental impacts of opencast Coal mine Production were focused on a single Production process. Moreover, mined land reclamation was an important process in opencast Coal mine Production; however, it was rarely considered in previous research. Therefore, this study attempted to perform a whole environmental impact analysis including land reclamation stage using life cycle assessment (LCA) method. The Yimin opencast Coal mine was selected to conduct a case study. The Production of 100 tons of Coal was used as the functional unit to evaluate the environmental risks in the stages of stripping, mining, transportation, processing, and reclamation. A total of six environmental impact categories, i.e., resource consumption, acidification, global warming, solid waste, eutrophication, and dust, were selected to conduct this assessment. The contribution rates of different categories of environmental impacts were significantly different, and different stages exhibited different consumption and emissions that gave rise to different environmental effects. Dust was the most serious environmental impact category, and its contribution rate was 36.81%, followed by global warming and acidification with contribution rates of 29.43% and 22.58%, respectively. Both dust and global warming were mainly affected in mining stage in Yimin opencast Coal mine based on comprehensive analysis of environmental impact. Some economic and feasible measures should be used to mitigate the environmental impacts of opencast Coal mine Production, such as water spraying, clean transportation, increasing processing efficiency, and improving mining technologies. This study can be considered as a useful reference for a deeper understanding of key environmental impacts related to the whole Coal Production in opencast Coal mine.