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《Earth and Environment》 2006-01
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CONTENTS AND DISTRIBUTION OF NITROGEN IN CHINESE COALS

WU Dai-she 1,2,ZHENG Bao-shan2,TANG Xiu-yi3,Wang Ming-shi2,HU Jun2,LI She-hong2,WANG Bin-bin2,Finkelman R B4(1.Key Lab of Poyang Lake Ecology and Bio-resource Utilization,Ministry of Education,College of Environmental Science and Engineering,Nanchang University,Nanchang 330029,China;2.Iinstitute of Geochemistry,CAS,Guiyang 550002,China;3.Anhui University of Science and Technology,Huainan 232001,China;4.U.S.Geological Survey,Mail Stop 956,VA 20192,USA)  
A nationwide sampling program was designed according to the resource distribution and coal-forming periods as well as coal rank and yield of coal in China,and 306 coal samples were collected from 26 provinces,municipalities and autonomous regions.Nitrogen in coal was determined.Nitrogen in coals is principally of organic nature.A weak positive correlation between coal rank and nitrogen content is inferred in the study.The distribution of nitrogen in coals of each geological age,coal-cumulating area and province was studied.The contents of nitrogen in Chinese coals show approximately a normal distribution,and 90% of the values range from 0.52% to 1.41%,the average nitrogen content in Chinese coal is designated as the arithmetic mean,0.98%.
【Fund】: 国家自然科学重点基金(40133010);; 中国科学院王宽诚博士后工作奖励基金;; 中国博士后科学基金
【CateGory Index】: P618.11
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