青海省煤炭资源丰富，由于国家煤炭工业战略和青海省经济发展水平等原因，青海省内石炭系煤炭资源的勘探程度普遍不高，对煤中硫的形态和赋存特征研究并不是十分丰富。 本课题研究的目的是通过对青海省北祁连地区石炭系煤中硫的的赋存状态、成因特征及其影响因素的分区分层研究，了解和掌握青海煤中硫的分布与变化规律，为青海省能源规划、煤炭资源的合理开发以及洁净利用提供依据；同时为青海聚煤特征和规律研究提供补充，并充实我国煤中硫研究的理论与方法体系。 本课题采用煤岩学、煤化学、矿物岩石学、构造地质学以及沉积学等多学科理论与方法相结合的研究思路，运用历史资料整理和现场资料采集相结合、实地观测与室内测试相结合、定性分析与定量分析相结合、分类研究和总体评价相结合、典型解剖与综合比较相结合的方法，总结揭示青海煤中硫的控制因素和赋存规律。 研究结果表明青海省石炭系随煤层层位的降低煤中镜质组含量、挥发分产率以及煤的灰分均呈递降趋势。成煤层位由西向东逐步抬升，大部分煤层煤的灰分产率由西向东递增趋势，而挥发分产率则呈递减趋势，说明聚煤期沼泽覆水由西向东逐步加深，水动力条件逐渐加强，聚煤作用发生于海退期，聚煤期后地壳的下沉幅度和深度也由西向东加大。不同区域不同煤层煤中硫分的构成差异和变化很大，无机硫以晶粒状、莓粒状和浸染状黄铁矿和同生石膏等形态赋存于煤层之中，有机硫以C＝S键或S＝O键官能团或杂环的形式存在于煤的芳香核。本区各煤层煤的硫分含量普遍较高，祁连县煤产区煤中硫区域变化规律明显，M1、M2煤层煤中全硫含量由西向东递减趋势明显，M3、M4、M5煤层煤的全硫含量以柏树沟区较高，向东西两侧减小。 随着煤层层位的提高，有机硫比率呈降低趋势，无机硫比率则逐层增高。煤中全硫含量与煤层厚度呈同步增减变化趋势，挥发分和灰分则呈随着挥发份和灰分的增加，全硫含量呈现降低趋势的关系。

Qinghai is rich in resources of coal, as State Coal Industry strategies and the reasons for the level of economic development in Qinghai Province, Qinghai Province, the exploration of coal resources within the extent of the Carboniferous generally not high, the Forms of Sulfur in coal and the occurrence characteristics of the study, was blank. The purpose of this research project through the North Qilian Mountains in Qinghai Province of sulfur in the Carboniferous Coal Occurrence, causes and its affecting factors of geographical stratification, understanding and knowledge of Qinghai, the distribution of sulfur in coal and variationenergy plan for the Qinghai Province, the rational development of coal resources and provide the basis for clean use; the same time features and laws of Qinghai Coal research complement and enrich the rich and sulfur in coal of China theory and methodology. Research projects with coal petrology, coal chemistry, mineral petrology, structural geology and sedimentology and other disciplines combine research ideas, the use of historical data compilation and field data collection by combining field observations and laboratory testing combined with qualitative analysisand quantitative analysis, classification, and overall evaluation of the combination of the typical anatomy and comprehensive comparison method of combining a comprehensive summary reveals the Qinghai Coal Sulfur law and controlling factors. The results show that the Qinghai Carboniferous coal layers with lower bit vitrinite content in coal, volatile matter yield and coal ash are present downward trend.Into coal seams gradually from west to east elevation, most of the coal seam of coal ash production rate from west to east increasing trend, while the volatile matter yield decreased in the shows that coal swamp overlying water of gradually deepening from west to east, gradually enhancing the hydrodynamic conditionsthe coal accumulation occurred in regression of the coal accumulation of sinking after the magnitude and depth of the crust also increasing from west to east.Different regions of the different sulfur coal seam differences and changes in the composition of large, inorganic sulfur to grain shape, berries granular and disseminated pyrite and other forms with the gypsum being hosted in coal seams and organic sulfur in C = S bond or S = O bond in the form of functional group or heterocyclic aromatic nucleus present in the coal.The area of all the sulfur content of coal seams generally high, Qilian County of sulfur in coal producing areas, the regional variation of coal significantly, M1, M2 content of total sulfur in coal significantly decreasing trend from west to east, M3, M4, M5 all coalsulfur content to cypress groove high on either side decreases.With the increase in coal layer position, decreasing rate of organic sulfur and inorganic sulfur ratio increased layer by layer.Total sulfur content in coal seam thickness was synchronous with the changes in trends, and volatile matter and ash were inversely related.