化工学报Issue(11)：4634-4642,9.DOI:10.11949/j.issn.0438-1157.20150472
化学分析分馏过程对生物质焦炭物理化学结构的影响
Effects of chemical fractionation analysis on physical and chemical structures of biomass char
摘要
Abstract
Chemical fractionation analysis is widely used to study the effect of alkali and alkaline earth metal (AAEM) species on the reactivity of biomass char. The influence of chemical fractionation analysis on the physical and chemical structures of biomass char was investigated in this study. The physical structures of biomass char were studied by the mercury porosimetry and scanning electron microscopy (SEM). The results showed that the influence of chemical fractionation analysis on the porosity and surface morphology of the biomass char was apparent. However, the effect of chemical fractionation analysis on the specific surface area of biomass char could be ignored. X-ray photoelectron spectroscopy (XPS) and Raman were used to identify the O-containing functional groups and the aromatic ring structures in the biomass char, respectively. The results indicated that the changes of the oxygen containing functional groups were little during the chemical fractionation analysis. The influence of the chemical fraction analysis on the aromatic ring structures could be ignored. During the chemical fractionation analysis, both NH4Ac and HCl could change the cross-linking structures of biomass char.关键词
化学分析分馏/热解/生物质/焦炭/物理结构/碱金属和碱土金属/碳氧官能团/数值分析Key words
chemical fractionation analysis/pyrolysis/biomass/char/physical structure/alkali and alkaline earth metals/carbon and oxygen functional group/numerical analysis分类
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冯冬冬,张宇,刘鹏,郭洋洲,黄玉东,孙绍增,吴江全,赵义军..化学分析分馏过程对生物质焦炭物理化学结构的影响[J].化工学报,2015,(11):4634-4642,9.基金项目
国家自然科学基金项目（51206037）；中国博士后基金项目（2013M541376）。@@@@supported by the National Natural Science Foundation of China (51206037) and the Postdoctoral Fund in China (2013M541376) （51206037）
