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首页> 外文期刊>Energy Conversion & Management >Effects Of Various Solvents On The Liquefaction Of Biomass To Produce Fuels And Chemical Feedstocks
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Effects Of Various Solvents On The Liquefaction Of Biomass To Produce Fuels And Chemical Feedstocks

机译：各种溶剂对生物质液化生产燃料和化学原料的影响

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The liquefaction of pinewood in the presence of various solvents (water, acetone and ethanol) was studied so as to investigate the solvent effects on the biomass liquefaction process. Experiments were conducted in an autoclave in the conditions of temperature range 523-723 K, starting pressure 1 MPa, reaction time 20 min, biomass 10 g and solvent 60 g, respectively. The liquid products and solid residues were characterized by GC-MS and FTIR. The results showed that the liquefaction products were greatly affected by the solvent type. With acetone as extraction agent, 4-methyl-1,2-benzenediol was one of the major compounds, while ethanol favored the formation of (E)-2-methoxy-4-(1-propenyl)-phenol and water significantly narrowed the products distribution. Among the tested solvents, acetone had the highest conversion rate, while the highest oil yield reached 26.5% at 473 K in ethanol. The FTIR analysis showed that cellulose liquefaction speed in water preceded in acetone and ethanol, and the solid residue consisted of solid carbon and a little amount of lignin fragments at 723 K.
机译：研究了松木在各种溶剂（水，丙酮和乙醇）存在下的液化，以研究溶剂对生物质液化过程的影响。在高压釜中分别在温度范围523-723 K，起始压力1 MPa，反应时间20分钟，生物质10 g和溶剂60 g的条件下进行实验。通过GC-MS和FTIR对液体产物和固体残余物进行表征。结果表明，液化产物受溶剂类型的影响很大。以丙酮为萃取剂，4-甲基-1,2-苯二酚是主要化合物之一，而乙醇有利于形成（E）-2-甲氧基-4-（1-丙烯基）-苯酚，水明显地缩小了产品经销。在测试的溶剂中，丙酮的转化率最高，而在473 K的乙醇中，最高的油产率达到26.5％。 FTIR分析表明，纤维素在水中的液化速度先于丙酮和乙醇，固体残留物由固体碳和在723 K下少量木质素碎片组成。

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