燃料化学学报2013，Vol.41Issue(1)：40-45,6.
快速热处理石油焦与煤的微观结构变化及气化活性分析
Changes in the microstructure and gasification reactivity of petroleum coke and coal samples after rapid pyrolysis
摘要
Abstract
To investigate the changes in the structure of petroleum coke and coal after rapid pyrolysis under the condition similar to the practical coal gasifier, two kinds of petroleum cokes and one bituminous coal were pyrolyzed in a drop tube furnace at 800 ~ 1 400 t. The structure of petroleum coke and coal were characterized by using surface area porosity analyzer and XRD (X-ray diffraction) analyzer, the CO2 gasification reactivity of samples was examined by TGA (thermogravimetric analyzer). The result shows that the pore in petroleum coke is mainly micropore compared with coal; with the increase of pyrolysis temperature, the micropore surface area of petroleum coke and coal increases first and then decreases gradually. Rapid pyrolysis lowers the graphitization degree of petroleum coke and coal. The changes in the carbon crystallite structure for petroleum coke are mainly observed in the average stacking height, while the changes in the carbon crystallite structure for coal is manifested in the value of 2θ002, interlayer spacing and average stacking height. Although the gasification reactivity changing tendency of petroleum coke and coal with the increase of pyrolysis temperature is different, the gasification reactivity is closely related to the carbon crystallite structure.关键词
滴管炉/比表面积/碳微晶结构/气化活性Key words
drop tube furnace/specific surface area/carbon crystallite structure/gasification reactivity分类
化学化工引用本文复制引用
赵冰,周志杰,丁路,于广锁..快速热处理石油焦与煤的微观结构变化及气化活性分析[J].燃料化学学报,2013,41(1):40-45,6.基金项目
国家重点基础研究发展规划(973计划,2010CB227000) （973计划,2010CB227000）
国家高技术研究发展计划(863计划,2011AA050106). （863计划,2011AA050106）
