Study on distribution of vitrinite for predicting the cleanability of coal macerals
In order to achieve comprehensive utilization of coking coal with maceral separation technique,this paper prepared the concentrates by float-sink test and screening test based on the coking coals of ranks (Rran,%) varying from 0.88 to 1.73 in KaiLuan coalfield,and petrography analysis of these concentrates was carried out.Distribution of vitrinite was attained.The concentrates with fine size and low density were characterized by higher vitrinite content and lower inertinite content for given coal sample.The good liberation of macerals in coal samples of different ranks by crushing was analyzed.Comparisons of size- and density-based separation for maceral separation were studied.Predictions of vitrinite recovery and inertinite reduction by different separation methods were made and a promising and reasonable separation technique was proposed.
vitrinite distribution maceral separation cleanability density-based separation
Lei ZHANG Wenli LIU Dongpo MEN Xiaojing ZHANG Chengyong WANG
School of Chemical and Environmental Engineering, China University of Mining & Technology(Beijing),Beijing, China
国内会议
北京
英文
13-18
2012-11-01（万方平台首次上网日期，不代表论文的发表时间）