摘要
在温度为340～420℃、压力为30～40MPa的实验条件下,对亚临界和超临界水中纤维素液化进行实验研究,液化产物经GC MS分析,得到其主要成分是糠醛、5-甲基糠醛、5-羟甲基糠醛和一些含甲基、羟基、羟甲基等官能团的酮类、苯酚类化合物,且反应温度变化时,液化产物成分和浓度有较大变化;对纤维素液化转化率有重要影响的两个因素———反应温度和纤维素与水质量比进行初步实验研究,结果表明:(1)反应温度为380℃左右,液化转化率最高;(2)纤维素与水的质量比为1∶15左右,转化率达最大值。
When the reaction temperature is 340～420℃ and the pressure is 30～40MPa, the liquefaction of cellulose in sub-critical and supercritical water is studied. The products are analyzed by GC-MS, they mainly contain furfural, 5-methyl-2-Furancarboxaldehyde, 5-(hydroxylmethy)-2-Furancarboxaldehyde and another compounds, such as ketone, phenol which contained methyl, hydroxyl and hydroxymethyl. With the change of reaction temperature, the products and concentration changed markedly. Two factors-reaction temperature and the mass proportion of cellulose to water which affect the conversion rate are studied. The results are as follows: (1) When the reaction temperature is about 380℃, the conversion rate is the highest; (2) When the mass proportion of cellulose to water is about 1:15, the conversion rate is higher than another.
出处
《能源工程》
2004年第5期6-10,共5页
Energy Engineering
基金
教育部优秀留学回国人员基金项目(KKQ0200121002)
