COALS

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Distribution and modes of occurrence of uranium in coals of Eastern Yunnan,China
《International Journal of Coal Science & Technology》2021年第6期1262-1271,共10页Xin Wang Qiyan Feng Qingjun Meng Fei Liu Qihang Cao Guijian Liu 
This work was supported by the National Basic Research Program of China(2014CB238903);the National Natural Science Foundation of China(41173032,41371444,41373110);the open project of Anhui Key Laboratory(ZYZWSW2014011);Anhui Provincial Department of Education University Scientific Research Project(KJ2020A1204).We acknowledge editors and reviewers for polishing the language of the paper and for in-depth discussion.
Uranium is an environmentally hazardous element,and is commonly present at trace levels(2.4 μg/g for world coals)in coal deposits.However,selected coal deposits could be highly enriched in uranium.In this study,15 co...
关键词：COAL URANIUM DISTRIBUTION Eastern Yunnan China 
Dynamic-Change Laws of the Porosity and Permeability of Low-to Medium-Rank Coals under Heating and Pressurization Treatments in the Eastern Junggar Basin,China被引量：8
《Journal of Earth Science》2018年第3期607-615,共9页Gang Wang Yong Qin Jian Shen Shuyuan Chen Beibei Han Xiaoting Zhou 
funded by the National Natural Science Fundation of China(Nos.41672149,41302131,41362009);the Key Project of the National Natural Science Foundation of China(No.41530314);the Scientific Research Foundation of the Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process of the Ministry of Education,China University of Mining and Technology,(No.2017-001);the National Science and Technology Major Project of the Ministry of Science and Technology of China(Nos.2016ZX05044-002,2011ZX05033,2011ZX05034);the Fundamental Research Funds for the Central Universities(No.2012QNB32)
Deep coalbed methane exists in high-temperature and high-pressure reservoirs. To elucidate the dynamic-change laws of the deep coal reservoir porosity and permeability characteristics in the process of coalbed methane...
关键词：high-temperature and confining pressure coalbed methane reservoir POROSITY permeability dynamic change. 
Pore structure of selected Chinese coals with heating and pressurization treatments被引量：7
《Science China Earth Sciences》2014年第7期1567-1582,共16页CAI YiDong LIU DaMeng PAN ZheJun YAO YanBin LI JunQian QIU YongKai 
National Major Research Program for Science and Technology of China (Grant No. 2011ZX05034-01)
Pore structure of Chinese coals with heating and pressurization treatments was studied using small angle X-ray scattering （SAXS）, N2 adsorption/desorption isotherms and scanning electron microscope （SEM）. SAXS was...
关键词：SAXS pore structure COALS heating and pressurization treatment surface fractal 
Composition and mode of occurrence of minerals in Late Permian coals from Zhenxiong County,northeastern Yunnan,China被引量：4
《International Journal of Coal Science & Technology》2014年第1期13-22,共10页Tian Li Shi-Feng Dai Jian-Hua Zou Sen Zhang He-Hing Tian Li-Xin Zhao 
This research was supported by the National Key Basic Research and Development Program(No.2014CB238902);National Natural Science Foundation of China(Nos.41272182 and 40930420);the Program for Changjiang Scholars and Innovative Research Team in University.
Minerals in the Late Permian coals from the Niuchang-Yigu mining area,Zhenxiong County,northeastern Yunnan,China,were investigated using optical microscopy and low temperature ashing plus X-ray diffraction(LTA?XRD).Th...
关键词：Late Permian coals Minerals in coal Zhenxiong of Yunnan 
Distribution, occurrence and enrichment causes of gallium in coals from the Jungar Coalfield, Inner Mongolia被引量：18
《Science China Earth Sciences》2011年第7期1053-1068,共16页WANG WenFeng QIN Yong LIU XinHua ZHAO JianLin WANG JunYi WU GuoDai LIU JiongTian 
supported by National Natural Science Foundation of China (Grant Nos. 40772102 and 40730422);Program for New Century Excellent Talents in University (Grant No. NCET-08-0839);National Key Basic Research and Development Program of China (Grant No. 2007CB209400);the Fundamental Research Funds for the Central Universities (Grant No. 2010LKDZ02);Sci-Tech Project "Evaluation of coal resources in first batch national planning mining areas" of the Ministry of Land and Resources
We collected eleven bench samples of No. 6 coal from the Heidaigou Surface Mine, Jungar Coalfield, Inner Mongolia, China, and four samples from the affiliated coal preparation plant. Based on these samples, we used in...
关键词：coal GALLIUM DISTRIBUTION OCCURRENCE enrichment causes Jungar 
Advanced characterization of pores and fractures in coals by nuclear magnetic resonance and X-ray computed tomography被引量：69
《Science China Earth Sciences》2010年第6期854-862,共9页YAO YanBin, LIU DaMeng, CAI YiDong & LI JunQian School of Energy Resources, China University of Geosciences, Beijing 100083, China 
supported by National Major Research Program for Science and Technology of China (Grant Nos. 2008ZX05034-01 and 2008ZX05062-001);National Basic Research Program of China (Grant No. 2009CB219604);National Natural Science Foundation of China (Grant No. 40972107);Petro China Innovation Foundation (Grant No. 2008D-5006-01-04);Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT0864)
This paper demonstrates capabilities of low-field nuclear magnetic resonance (NMR) and microfocus X-ray computed tomography (μCT) in advanced, nondestructive, and quantitative characterization of pore types, producib...
关键词：coalbed METHANE PORE fracture nuclear magnetic resonance (NMR) X-ray COMPUTED tomography (X-CT) 
The concentration of fluorine in coals and gangue of China
《Journal of Coal Science & Engineering(China)》2008年第1期92-96,共5页敖卫华 黄文辉 陈晶 万欢 
"973 Program"(2006CB202202);The National Natural Science Foundation of China(40572090,40272124)
A detailed comparison was done between the data about the F in coals published at home and abroad, and associated with the special situation in China. An introduction also was made to illuminate the forming, occurrenc...
关键词：COAL GANGUE fluorine （F） in coals fluorine （F） contamination 
Modes of Occurrence and Geological Origin of Beryllium in Coals from the Pu'an Coalfield, Guizhou, Southwest China
《Acta Geologica Sinica(English Edition)》2007年第3期470-476,共7页YANG Jianye 
This research is supported by the National Key Basic Research and Development Program （No. 2006CB202201）；Natural Science Foundation of Shaanxi Education Department （No. DK01jk145）；Natural Science Foundation of Shan＇xi Science Department （No. 2004D02）.
The concentration, modes of occurrence and geological origin of beryllium in five workable coal beds from the Pu＇an Coalfield of Guizhou were studied using the inductively coupled-plasma mass spectrometry （ICP-MS）,...
关键词：coal BERYLLIUM mode of occurrence geological origin GUIZHOU 
Geochemistry and mineralogy of the Late Permian coals from the Songzao Coalfield, Chongqing, southwestern China被引量：31
《Science China Earth Sciences》2007年第5期678-688,共11页DAI ShiFeng1,2, ZHOU YiPing3, REN DeYi1, WANG XiBo1, 2, LI Dan1, 2 & ZHAO Lei1, 2 1 State Key Laboratory of Coal Resources and Safe Mining (China University of Mining and Technology), Beijing 100083, China 2 Department of Resources and Earth Science, China University of Mining and Technology, Beijing 100083, China 3 Kunming Research Institute of Coal Science, Kunming 650041, China 
Supported by the National Key Basic Research and Development Program (Grant No. 2006CB202201);the National Natural Science Foundation of China (Grant No. 40472083);the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 200448)
Mineralogy and geochemistry of the four main workable coal seams (No.6, No.7, No.8, and No.11) of Late Permian age from the Songzao Coalfield, Chongqing, Southwest China, were examined using in- ductively coupled plas...
关键词：coal trace elements mineral alkaline VOLCANIC ash Late PERMIAN period Songzao Coalfield 
Study on kinetics of hydrocarbon generation from coals in the Qinshui Basin被引量：3
《Chinese Science Bulletin》2005年第17期1904-1911,共8页DUAN Yi WU Baoxiang ZHENG Chaoyang WANG Chuanyuan ZHANG Hui TAO Mingxin LIU Jinzhong ZHANG Xiaojun 
This work was supported by the“973"program of China(Grant No.2002CB211701);the Important Direction Project of Know ledge Innovation in Resource and Environment Field,Chinese Academy of Sciences(Grant No.KZCX3-SW-128);the Important Project of International Co operation,Chinese Academy of Sciences(GJHZ05).
A new method for the quantitative assessment of hydrocarbon generation potential from coals by means of the chemical reaction kinetics has been developed gradually over the recent years. In this paper, the kinetic par...
关键词：盆地 碳氢化合物 煤气 动态模仿 化学反应 
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