氧化钙催化的霍林郭勒褐煤的超临界甲醇解研究  

Metholysis of Huolinguole lignite under supercritical MeOH-CaO

作　　者：芦海云[1] 魏贤勇[1,2] 孙兵[1] 彭耀丽[1] 吕洁[1] 夏同成[1] 宗志敏[1] 王世杰[2] 许斌[2] 

机构地区：[1]中国矿业大学煤炭加工与高效洁净利用教育部重点实验室,江苏徐州221008 [2]武汉科技大学煤转化与新型炭材料湖北省重点实验室,湖北武汉430081

出　　处：《武汉科技大学学报》2010年第1期83-87,共5页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金委员会创新研究群体科学基金资助项目(50921002);国家863计划专题课题资助项目(2007AA06Z113);国家自然科学基金西部能源重大研究计划重点项目(90410018);国家自然科学基金面上项目(20776149);江苏省普通高校高新技术产业发展重点项目(JHB05-33)

摘　　要：制备用于催化褐煤超临界甲醇解的固体碱CaO,并用XRD和CO2-TPD对其进行表征。分别考察反应温度、时间及CaO和CH3OH的用量对霍林郭勒褐煤解聚反应的影响。依次用CH3OH、等体积的CH3COCH3与CS2混合溶剂、等体积的THF与CS2混合溶剂进行萃取分离,得到萃取物E1、E2和E3,并采用GC/MS对可溶物组分进行分析。结果表明,在反应温度为320℃、CaO用量为0.6 g、甲醇用量为20 mL、反应时间为2 h的条件下,霍林郭勒褐煤醇解的总萃取率可达70%以上;E1中共检测到77种有机化合物,主要是酚类、烷烃类、酮类和含杂原子化合物。In order to catalyze the depolymerization of lignite in supercritical MeOH, the solid base CaO was characterized by XRD and CO2-TPD. The influencing factors （reaction temperature and time, CaO amount and MeOH amount） of metholysis were also analyzed. The reaction mixture was successively extracted using methanol, equivalent volume mixture of acetone and carbon bisulfide, equivalent volume mixture of THF and carbon bisulfide, and the soluble components were defined as E1 , E2, Ea, respectively. The extractions were analyzed by GC/MS with 77 compounds detected in El, most of which are phenols, alkanes, ketones and other heteroatom compounds.

关 键 词：CAO 超临界甲醇 霍林郭勒褐煤 GC/MS分析 

分 类 号：O658.2[理学—分析化学]