Exploring relationships of gross calorific value and valuable elements with conventional coal properties for North Korean coals

作     者：Saeed Chehreh Chelgani 

作者机构：Minerals and Metallurgical Engineering Dept.of Civil Environmental and Natural Resources Engineering Lule? University of Technology 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2019年第29卷第6期

页      面：867-871页

核心收录：

学科分类：0808[工学-电气工程] 0709[理学-地质学] 0819[工学-矿业工程] 1002[医学-临床医学] 0807[工学-动力工程及工程热物理] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0813[工学-建筑学] 100214[医学-肿瘤学] 0814[工学-土木工程] 10[医学] 

主　　题：Yttrium Gallium Vanadium Calorific value Energy By product 

摘      要：Coal in North Korean(NKC)is one of the most important products;however,based on various strategic policies its detail properties remain opaque even for general *** there are some signs for opening of the North Korea economy,this investigation as a modest effort is going to explore principle relationships among some essential parameters of NKCs such as gross calorific value(GCV),valuable elements and conventional properties by different statistical *** indicated that ultimate parameters(carbon,nitrogen,and hydrogen)are the best GCV predictors for NKCs in comparison with proximate parameters(ash,moisture and volatile matter).Multivariable regression demonstrated that predicted GCV based on ultimate properties has a quite accuracy when correlation of determination was *** statistics processes showed that on average,the contents of valuable elements such as Ga and V for NKCs are higher than the world coal ranges and they can be considered as byproducts of combustion of *** correlations indicated that Y may have a mixed organic-inorganic affinity while Ga and V mainly occur in the inorganic part(mineral matter)of *** inter-correlations between Ga-V and Al showed that aluminosilicates can be considered as their main bring minerals.