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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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亚/超临界乙醇液化秸秆纤维素解聚反应研究与机理初探
, PP. 526-532
Keywords: 亚/超临界乙醇,秸秆纤维素,解聚,液化机理
Abstract:
？利用间歇式高压反应釜,在反应温度200～330℃、乙醇用量0～150ml条件下,考察了亚/超临界乙醇直接液化秸秆纤维素的解聚行为,并初步探讨了其液化机理。结果表明,反应温度、乙醇用量和反应停留时间对秸秆纤维素的液化均有显著影响,反应温度由200℃升高至330℃,重油和气体收率分别增加了12.55%、28.83%;乙醇用量增加,反应压力随之升高,乙醇进入超临界状态,残渣和气体收率相比单纯热裂解分别降低11.10%和8.44%。通过gc/ms、ft-ir分析生物油组分和残渣特性,表明秸秆纤维素在亚/超临界乙醇中断键裂解,且酮类和乙酯类化合物是生物油的主要成分。
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