Biomass decomposition in near critical water
Biomass decomposition in near critical water
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DOI：
10.1016/j.enconman.2009.11.009
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发表时间：
2010-03-01
影响因子：
10.4
通讯作者：
Canel, Muammer
中科院分区：
文献类型：
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作者：
Sinag, Ali;Gulbay, Selen;Canel, Muammer
本工作介绍了在高压釜中在近临界水（648 K和24 MPa）中将婴儿食品（作为含蛋白质和碳水化合物的生物质的模型生物质）转化为有价值的化学品。选择K（2）CO（3）、镍/二氧化硅和沸石（HZSM-5）作为催化剂。通过高压液相色谱法、紫外可见光谱法和总有机碳分析仪对水相进行详细表征。通过实验回收的固体颗粒也进行扫描电子显微镜分析。本研究确定了反应条件对主要生物质组分的反应性的影响。乙酸、甲酸和乙醇酸、醛类（乙醛、甲醛）。苯酚和苯酚衍生物，糠醛，甲基糠醛。羟甲基糠醛是在水相中发现的中间体。婴儿食品中主要含有碳水化合物、蛋白质、各种盐类和矿物质等，因此，研究结果显示了这些成分对生物质水热转化的影响。结果表明，生物质结构对中间产物的形成和降解途径有一定的影响。(C)2009爱思唯尔有限公司保留所有权利。
Conversion of baby food (taken as model biomass for protein and carbohydrate containing biomass) to the valuable chemicals in near critical water (648 K and 24 MPa) in an autoclave is presented in this work. K(2)CO(3), Nickel on silica and Zeolith (HZSM-5) are selected as catalysts. A detailed characterization of the aqueous phases is performed by High Pressure Liquid Chromatography, UV-Vis Spectroscopy, Total Organic Carbon Analyser. Solid particles recovered by the experiments are also subjected to Scanning Electron Microscopy analysis. This study determines the effect of reaction conditions on the reactivity of the major biomass component. Acetic, formic and glycolic acid, aldehydes (acetaldehyde, formaldehyde). phenol and phenol derivatives, furfural, methyl furfural. hydroxymethyl furfural are the intermediates found in the aqueous phase. Baby food contains mostly carbohydrates, proteins, a variety of salts and minerals, etc. Thus, the results show the effect of these ingredients on the hydrothermal conversion of biomass. It is found that the formation and degradation pathways of the intermediates are influenced by the biomass structure. (C) 2009 Elsevier Ltd. All rights reserved.