玉米秸秆液化产物中酚类物质的测定  

Determination of Phenols in Biomass Corn Straw Liquefaction Products

作　　者：李翔宇[1] 李学琴[2,3] 李文斌 雷廷宙[3,4] 时君友[1] 王志伟[2,3] 段喜鑫[1] 

机构地区：[1]吉林省木质材料科学与工程重点实验室(北华大学),吉林吉林132013 [2]河南省科学院能源研究所有限公司,河南郑州450008 [3]河南省生物质能源重点实验室,河南郑州450008 [4]河南省科学院,河南郑州450008

出　　处：《北华大学学报（自然科学版）》2018年第1期108-113,共6页Journal of Beihua University（Natural Science）

基　　金：国家林业局"948"项目(2014-4-28);国家自然科学基金项目(21376241);吉林省科技厅专利推进项目(20170312028ZG);吉林省秸秆综合利用技术创新平台专项资金项目(吉高平台字[2014]C-1);河南省科技攻关计划项目(172102410030);河南省科学院科研基本经费项目

摘　　要：为获得生物质液化产物中酚类物质总含量,以浓硫酸为催化剂,苯酚为液化剂,采用微波辅助的方法液化玉米秸秆;采用气相色谱-质谱联用仪(GC-MS)测定液化产物的组成成分,红外光谱(FT-IR)分析玉米秸秆、液化残渣及液化产物的主要官能团变化,化学试剂法测定液化产物中酚类物质总量.结果表明:利用化学试剂法测定的液化产物中酚类物质总含量为52.0 mg/L,GC-MS测定液化产物中的芳香族有机物相对含量较高,为49.16%,以酚类化合物为主.FT-IR分析表明,液化过程中玉米秸秆基本上被完全降解液化,说明液化产物中的酚类物质主要来自于木质素.In order to obtain the total content of phenolic compounds in the liquefaction products of biomass,this paper used the sulfuric acid as catalyst and phenol as liquefaction agent,the microwave-assisted method was used to liquefy the corn stalks.The total content of phenolic compounds in biomass liquefaction products were obtained by using gas chromatography-mass spectrometry（ GC-MS）. The main functional groups of corn stalks,liquefied residues and liquefied products were determined by infrared spectroscopy（ FT-IR）,and the total amount of phenolic compounds in liquefied products was determined by chemical reagent method. The results showed that the total content of phenolic compounds in liquefaction products was 52.0 mg/L by chemical reagent method,the relative content of aromatic organics in the liquefaction products was determined by GC-MS,which was 49.16%and mainly phenolic compounds.FT-IR analysis showed that in the liquefaction process,corn straw was completely degraded liquefaction and the phenolic substances in liquefaction products mainly came from lignin.

关 键 词：玉米秸秆 液化 液化产物 酚类物质 含量测定 

分 类 号：TK69[动力工程及工程热物理—生物能]