我国经济快速发展严重依赖于煤炭资源的现状，已造成优质煤供应紧张的态势，合理有效地利用储量相对丰富的高硫煤是保障资源安全和污染物减排的有效途径，为此本申报项目拟进行煤中硫赋存形态的确切表征、各形态硫的预脱除行为以及其在热转化过程中的变迁为基础的高硫煤脱硫研究。以我国典型的不同组成特性的高硫煤为研究对象，以煤中各形态硫结构和含量的确定、预脱除行为的考察和其在热转化过程中的本征转化及二次反应的作用机理的探讨为研究重点，优选形态硫表征分析技术、优化煤中硫的预脱除方法、构建新型固定床反应装置和原位表征系统，以实现与煤中硫相关的各化学键在硫的脱除及热转化过程中断裂和硫化物变迁的本征特性的考察、煤热转化时二次反应对硫变迁作用机理的探讨，达到基于煤质特性及其目标用途的高硫煤中硫的有效脱除和定向转化调控的目的。研究结果可为高硫煤脱硫基础理论的建立和其合理分级转化技术的实施，提供理论依据和实际指。

The rapid econmic development in China depends primarily on the consumption of coal resource. This present situation has caused the tension to supply the high quality coal. It is an effective way for the protection of the reasouce security and the reducing emission of the pollutants to reasonably and effectively utilize the abundant low grade coal with high-sulfur content. In view of this, we will carry out the basic research of removing sulfur from the coal with high-sulfur content based on the accurate characterization of the sulfur forms in coal, the pre-removal behavior of each form sulfur and their transformation in the thermal conversion process. The typical high-sulfur coals with different features will be selected as the research objects. The confirmation of the structure and content of each sulfur form, the investigation of their pre-removal behaviors, the intrinsic transformation performances and the influencing mechanisms of secondary reactions during the thermal conversion of coal are the the focal point in this project. The efficient removal of sulfur and its directional regulation and control based on the features and target uses of the high-sulfur coal are the research aims. So, we will establish the suitable method for the characterization of sulfur forms in coal and char, optimize the operation conditions of pre-removal sulfur from coal, and design the novel fixed bed reactor and in situ characterization system. The breakage of various types of chemical bonds related to the sulfur in coal during the removal and thermal conversion and their transformation are examined. And then, the influences of the secondary reactions on the transmission of sulfur during coal thermal conversion are discussed. The research results of this project will supply the theoretical basis and practical guidance for the establishment of the basic theory of removing sulfur from the high-sulfur coal and the implementation of its reasonable classification conversion technology.