文献类型： 外文期刊
作者： Wang, Shuang 1 ; Hu, Yamin 1 ; Uzoejinwa, Benjamin Bernard 1 ; Cao, Bin 1 ; He, Zhixia 1 ; Wang, Qian 1 ; Xu, Shannan 2 ;
作者机构： 1.Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China
2.Chinese Acad Fishery Sci, Key Lab South China Sea Fishery Resources Exploit, Minist Agr, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
关键词： Seaweed; Sulfated polysaccharide; Biomass; Pyrolysis; Mechanism
期刊名称：JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS （ 影响因子：5.541； 五年影响因子：5.259 ）
ISSN： 0165-2370
年卷期： 2017 年 124 卷
页码：
收录情况： SCI
摘要： The pyrolysis mechanisms of typical seaweed polysaccharides were investigated using TG-MS and Py-GC/MS. It was found that Enteromorpha polysaccharides (EN) was mainly composed of glucan, xylan and glucuronide-sulfate-rhamnose, while Sargassum fusiforme (SA) mainly consisted of uronic acid, sulfate group-fucose and polysaccharide galactose. Because of the component differences, it was found that the content of oxygen-containing functional groups and inorganic oxides varies. Meanwhile, three types of sulfur-containing functional groups (sulfonyl groups, sulphates, sulfate) were observed in seaweed polysaccharide. During the pyrolysis process, SO2 was generated because of the cleavage of sulfuric acid group in 4-O-glucuronide-2 sulfate-L-rhamnose. The generation of CO2 was due to the decarboxylation of organic matter. Besides, Py-GC/MS analysis indicated that the main pyrolysis products of EN polysaccharides were furans. The pyrolysis products of SA polysaccharides were mainly ester substances. Thus, the pyrolysis mechanisms as well as the generation pathways of main products of polysaccharides pyrolysis, were revealed. (C) 2016 Elsevier B.V. All rights reserved.
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