文献类型：期刊文献

中文题名：竹粉乙醇-苯酚加压液化工艺研究及产物表征

英文题名：Liquefaction of Bamboo Powder in Ethanol-phenol under High Pressure and Product Characterization

作者：马艳[1,2,3,4] 谭卫红[1,2,3,4] 冯国东[1,2,3,4] 徐俊明[1,2,3,4,5] 王奎[1,2,3,4] 应浩[1,2,3,4] 蒋剑春[1,2,3,4,5]

第一作者：马艳

机构：[1]中国林业科学研究院林产化学工业研究所;[2]生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室;[4]江苏省生物质能源与材料重点实验室;[5]江苏强林生物能源材料有限公司

年份：2016

卷号：36

期号：4

起止页码：105-112

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金："十二五"农村领域国家科技计划课题(2014BAD02B01)

语种：中文

中文关键词：竹粉;液化;响应面分析

外文关键词：bamboo powder ;liquefaction; response surface

分类号：TQ35;TK6

摘要：以乙醇-苯酚为液化剂,浓硫酸为催化剂,采用高温高压(3.8 MPa)的方法对竹粉进行了液化处理。通过响应面分析法确定最佳液化工艺条件为:在苯酚和竹粉质量比(酚固比)为1∶1、乙醇和竹粉质量比(醇固比)为18∶1,浓硫酸用量(以竹粉质量计)5%,反应温度200℃,反应时间70 min时,液化率达98.5%。液化残渣的红外光谱(FT-IR)、扫描电镜(SEM)和热重分析(TG)结果证实了竹粉中化学组分的分子结构发生了明显的变化,复合溶剂液化使芳环上有不同取代基的化合物形成,液化残渣主要由木质素及其衍生物构成;竹粉液体产物(生物质油)的GC-MS分析结果表明,生物质油的成分比较复杂,主要包括酯、酚和酮等化合物,平台化合物乙酰丙酸乙酯GC含量为10.11%。
The liquefaction of bamboo powder was investigated in ethanol-phenol under high pressure using H2SO4 as catalyst. The liquefaction conditions were optimized by response surface analysis and its result was analyzed using Design-Expert 8.0.6 software. The effects conditions were investigated by a five level three-factor Box-Behnken design. The results showed that the liquefaction rate reached 98.5% under the optimum conditions, i. e. , mass ratio of phenol and bamboo powder 1 ： 1, ethanol and bamboo powder 18 ： 1, sulfuric acid amount 5%, reaction temperature 200 ℃ and reaction time 70 min. The product analysis showed that the bamboo powder could be effectively degraded in blended solvents. The FT-IR, SEM and TG results of residue indicated that the molecular structure of bamboo powder present significant change via liquefaction and the compounds with different substituent on aromatic ring were obtained. The GC-MS analysis showed that the oil produced by this way was complex in composition with some major compounds such as alcohols, phenols, ketones and esters, and the GC content of ethyl levulinate reached 10.11%.