燃料化学学报2011，Vol.39Issue(3)：182-188,7.
CaO伴随生物质热裂解制油同时脱氧的小型流化床实验研究
Investigation on direct deoxygenation of bio-oil during biomass fast pyrolysis with CaO in a fluidized bed reactor
摘要
Abstract
Direct deoxygenation effect of CaO on bio-oil from biomass pyrolysis was studied in a fluidized bed experimental apparatus. Bio-oil was produced at reaction temperature of 520 ℃ and carrier-gas flow-rate of 8 000 L/h using white pine alone and white pine accompanied with CaO, respectively. The result shows that the oxygen contents of the organic components in the bio-oils are 39.38％, 39.15％, 39.04％ and 32.29％ for white pine alone and white pines with 1,2, 4 times of CaO added, respectively. With 4 times CaO added, the oxygen content of the organic components decreases by 18.0％ (relative variation). Detailed GC-MS analysis indicates that the relative contents of high-oxygen containing levoglucosan, formic acid, acetic acid, etc. are greatly reduced with CaO-adding, implying the existence of the oxygen-capture path of “high-oxygen containing intermediates” in biomass pyrolysis process. Furthermore, the species of furfural is derived from dehydration reactions, and the increase in the relative content demonstrates that CaO-adding can also catalyze the dehydration reactions.关键词
生物质热解/CaO伴随/直接脱氧/流化床反应器/富氧中间体Key words
biomass pyrolysis/ CaO-adding/ direct deoxygenation/ fluidized bed reactor/ high-oxygen containing intermediates分类
资源环境引用本文复制引用
林郁郁,张楚,章明川,张健,徐旭常..CaO伴随生物质热裂解制油同时脱氧的小型流化床实验研究[J].燃料化学学报,2011,39(3):182-188,7.基金项目
国家自然科学基金(50676062). （50676062）
