Nitrogen in Chinese coals

被引：3

作者：

Wu D. ^{[1
]}

Lei J. ^{[1
]}

Zheng B. ^{[2
]}

Tang X. ^{[3
]}

Wang M. ^{[2
]}

Hu J. ^{[2
]}

Li S. ^{[2
]}

Wang B. ^{[2
]}

Finkelman R.B. ^{[4
]}

机构：

[1] Key Lab. of Poyang Lake Ecology and Bio-resource Utilization, Ministry of Education, College of Environmental Science and Engineering, Nanchang University

[2] Institute of Geochemistry, CAS

[3] Anhui University of Science and Technology

[4] U.S. Geological Survey, Reston, VA 20192

来源：

Chinese Journal of Geochemistry | 2011年 / 30卷 / 2期

基金：

中国国家自然科学基金;

关键词：

coal; distribution; nitrogen;

D O I：

10.1007/s11631-011-0506-6

中图分类号：

学科分类号：

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 yields. Nitrogen was determined by using the Kjeldahl method at U. S. Geological Survey (USGS), which exhibit a normal frequency distribution. The 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 form. There is a slight positive relationship between nitrogen content and coal ranking. © 2011 Science Press, Institute of Geochemistry, CAS and Springer Berlin Heidelberg.

引用

页码：248 / 254

页数：6