广西各成煤时代煤中硫赋存规律及控制因素分析

Sulfur Hosting Pattern in Coal and Controlling Factor Analysis of Coal with Different Forming Ages in Guangxi

为了充分了解各成煤时代煤中硫的分布规律及控制因素,通过对广西各煤炭产出地煤中硫分含量的统计及部分样品的测试,研究各成煤时代煤中硫分的含量,进而分析各成煤时代煤中硫分的分布规律及控制因素。研究发现:广西各时代煤中各种硫的含量相差较大。早石炭世、晚二叠世、早侏罗世和新近纪煤中硫化物硫占全硫的平均值分别为63. 79%、33. 2%、32. 61%、46. 74%,以早石炭世煤中硫化物硫占全硫含量比例最高,其余三个时代相差不大;广西煤中硫分含量较高,且新近纪的煤中硫分含量并非如此,煤中高硫煤所占比例较大;煤中硫的含量与分布受成煤古地理的控制。

To fully understand sulfur hosting pattern and controlling factor of coal with different forming ages, through sulfur content statistics and some sample tests of coal from different localities in the Guangxi region, have analyzed coal sulfur contents. Then proceeded to analyze the coal sulfur distribution patterns and controlling factors. The study has shown that the sulfur content is differed considerably between various kinds of sulfur with different ages. In the early Carboniferous, late Permian, early Jurassic and Neogene coals, average proportions of sulfide sulfur in total sulfur are 63.79%, 33.20%, 32.61% and 46.74% respectively. Thus, in early Carboniferous coal the proportion of sulfide sulfur in total sulfur is the highest, the rest have little difference. Sulfur content in Guangxi coals is rather high and high sulfur coal proportion is larger; the distribution of sulfur in coal is controlled by coal-forming paleogeography.