生物粗甘油精制工艺优化研究  

Optimization of biocrude glycerol refining process

作　　者：贺小平 关慧敏 HE Xiao-ping;GUAN Hui-min(School of Petrochemical Engineering,Liaoning petrochemical University Fushun 113001,Liaoning Province,China)

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《化学工程》2021年第5期74-78,共5页Chemical Engineering(China)

摘　　要：为满足市场对不同品质精甘油的需求,同时回收无机盐和沥青质,采用优化生物粗甘油精制工艺的方法,在粗甘油精制前,通过实验室小试法,对原料粗甘油进行质量判定;在粗甘油精制后,采用双极推动离心机和薄膜蒸发器,对蒸馏残渣进行处理。结果表明:通过实验室小试,起泡性合格原料粗甘油可以混合存储,用以生产工业级精甘油;热试后甘油色度≤35#原料粗甘油,单独存储,用以生产医用级精甘油;通过蒸馏残渣再处理,提高了甘油回收率,同时回收了无机盐类和沥青质,减少了废固排放量,增加了经济收益和社会效益。In order to meet the market demand for refined glycerin with different qualities and recover inorganic salt and asphaltene,the method of optimizing the refining process of biological crude glycerin was adopted.Before refining crude glycerin,the quality of raw material crude glycerin was determined by laboratory trial method.After crude glycerin was refined,the distillation residue was treated by a bipolar centrifuge and a thin film evaporator.The results show that the foaming qualified raw material crude glycerol can be mixed and stored to produce industrial grade refined glycerol through laboratory test.After the hottest,the glycerinechroma≤35#raw material crude glycerin is stored separately to produce medical grade refined glycerin.Through the reprocessing of distillation residues,the recovery rate of glycerol is increased,and inorganic salts and asphaltenes are recovered,which reduces the discharge of waste solid and increases the economic and social benefits.

关 键 词：生物粗甘油 精制工艺 蒸馏残渣 沥青质 优化 

分 类 号：TQ064[化学工程] TQ645.5