Nitrogen in Chinese coals

作     者：Finkelman R.B. 

作者机构：U.S.Geological SurveyMail Stop 956VA 20192USA 

出 版 物：《Chinese Journal Of Geochemistry》 (中国地球化学学报)

年 卷 期：2011年第30卷第2期

页      面：248-254页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 40133010) 

主　　题：coal nitrogen distribution 

摘      要：Three hundred and six coal samples were taken from main coal mines of twenty-six provinces,autonomous regions,and municipalities in China,according to the resource distribution and coal-forming periods as well as the coal ranks and coal *** was determined by using the Kjeldahl method at *** Survey(USGS),which exhibit a normal frequency *** nitrogen contents of over 90% Chinese coal vary from 0.52% to 1.41% and the average nitrogen content is recommended to be 0.98%.Nitrogen in coal exists primarily in organic *** is a slight positive relationship between nitrogen content and coal ranking.