Liquefaction and characterization of acid hydrolysis residue of corncob in polyhydric alcohols
Liquefaction and characterization of acid hydrolysis residue of corncob in polyhydric alcohols
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DOI：
10.1016/j.indcrop.2012.02.010
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发表时间：
2012-09-01
影响因子：
5.9
通讯作者：
Chen, Xinde
中科院分区：
文献类型：
--
作者：
Zhang, Hairong;Ding, Fei;Chen, Xinde
以甘油为主要液化溶剂，对玉米芯酸解残渣进行液化。研究了反应时间、液化温度、催化剂用量、多元醇/AHR比、甘油浓度等液化条件对液化残渣含量的影响。液化产物被分离成三个部分：水溶性部分、丙酮溶性部分和残余物。傅立叶变换红外光谱（FT-IR）分析表明，丙酮可溶部分主要为木质素降解产物，水溶性部分主要为液化溶剂及其衍生物和纤维素降解产物，残渣主要为木质素衍生物。气相色谱-质谱（GC-MS）分析表明，AHR液化产物包括醇类、酸类、酯类、烷烃类、酚类及其衍生物。(C)2012爱思唯尔有限公司版权所有。
Acid hydrolysis residue (AHR) of corncob was liquefied using glycerol as main liquefaction solvent. The effects of various liquefaction conditions such as reaction time, liquefaction temperature, catalyst content, ratio of polyol/AHR and glycerol concentration on the liquefied residue content have been studied in this paper. The liquefied product was separated into three fractions: a water-soluble part, an acetone-soluble part and a residue. Fourier transform infrared (FT-IR) analyses showed that the acetone-soluble part mainly included degradation products from lignin, the water-soluble fraction mainly contained liquefaction solvent and its derivate and cellulose degradation products, the residue mainly contained lignin derivatives. The gas chromatography and mass spectrometry (GC-MS) analyses showed that liquefied products of AHR included alcohols, acids, esters, alkanes, phenols and their derivatives. (C) 2012 Elsevier B.V. All rights reserved.