摘要
介绍了木质素、碱木质素和铵化木质素的制备方法,且对这3种木质素的比重、钠元素含量、X射线衍射、热重、溶解度等理化性质进行表征。研究结果表明,铵化木质素不含有碱金属钠,同时具有很好的水溶性,即铵化木质素解决了纯木质素难溶于水的问题,又解决了碱木质素与柴油乳化后对柴油发动机汽缸内的损坏和长期使用会存在积炭的风险。这说明铵化木质素与木质素和碱木质素相比更适于同柴油乳化混合,实现传统化石能源的添加剂,铵化木质素为我国林木废弃生物质资源化利用和替代能源开发提供了一条潜在的途径。
The preparation methods of lignin, alkali lignin and ammonium lignin were introduced in this research and the above three kinds of lignins were characterized by physicochemical properties including specific gravity detection, sodium detection, X-ray diffraction detetion, thermogravimetric detection and solubility test. The results indicated that ammonium lignin did not contain metallic sodium and had excellent water-solubility as well. That is to say ammonium lignin settled the problem of poor solubility of pure lignin in water. Meanwhile, it also overcame the damages to diesel burner cylinder after emulsification of alkali lignin and diesel and succeeded in avoiding the risk of carbon deposit owing to long term usage. Therefore, the conclusion could be obtained that ammonium lignin was more suitable to be mixed up through emulsification with diesel, to be an additive of traditional fossil energy compared with lignin and alkali lignin. Ammonium lignin supplies a potential way for the comprehensive utilization of biomass wastes and the development of alternative energy.
出处
《植物研究》
CAS
CSCD
北大核心
2013年第6期766-769,共4页
Bulletin of Botanical Research
基金
林业公益性行业科研专项(201304601)
关键词
木质素
碱木质素
铵化木质素
理化性质
lignin
alkali lignin
ammonium lignin
physicochemical properties
