烟煤快速加氢热解的研究 Ⅴ.煤和半焦中有机硫化学形态剖析  

RESEARCH OF COAL FLASH HYDROPYROLYSIS Ⅴ. CHEMICAL TYPE ANALYSIS OF ORGANIC SULFUR IN COAL AND SEMI-COKE

作　　者：朱子彬[1] 朱宏斌[1] 吴勇强[1] 唐黎华[1] 陈玲君[1] 徐志刚[1] 

机构地区：[1]华东理工大学,上海200237

出　　处：《燃料化学学报》2001年第1期44-48,共5页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金! (2 9476 2 32 )&&

摘　　要：采用XPS技术分析了我国以烟煤为主的七种煤样以及对应的快速加氢热解半焦中有机硫的化学形态。煤中有机硫一般为脂肪类硫与噻吩类硫 ,其谱峰位置分别在 16 3 1～ 16 3 5eV和 16 4 1～ 16 4 5eV之间。噻吩类硫的相对含量随煤化程度而增大。半焦中一般只残留噻吩类硫 ,谱峰位置在 16 4 1～ 16 4 5eV ,与对应煤中噻吩硫的谱峰位置是一致的。在加氢热解过程中全部脂肪类硫和部分噻吩类硫被脱除 ,脂肪类硫表现出很高的加氢反应活性。Using XPS analyses the organic sulfur of seven different Chinese coals and their semi-cokes from flash hydropyrolysis were studied. The result showed that organic sulfur in coal was alkyl sulfur and thiophene with the peak of XPS located in 163.1～163.5eV and 164.1～164.5eV. The relative thiophene content in coal increased with coal rank. The type of organic sulfur in semi-coke in flash hydropyrolysis was generally thiophene species. Its XPS peak also located in 164.1～164.5eV, and was in accord with its corresponding coal. Total alkyl sulfur and some thiophene sulfur were removed during flash hydropyrolysis process. Alkyl sulfur had very high activity in hydrogenation reaction. Flash hydropyrolysis was a new important clean-coal technique and had notable desulfurization effect.

关 键 词：煤 快速加氢热解 XPS 有机硫 化学形态 电子能谱 半焦 

分 类 号：TQ530.2[化学工程—煤化学工程]