The influence of impurities on the acid-catalyzed reaction of glycerol with acetone

被引：77
作者：
da Silva, Carolina X. A. [1 ,2 ]
Mota, Claudio J. A. [1 ,2 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Quim, BR-21941909 Rio De Janeiro, Brazil
[2] UFRJ, INCT Energia & Ambiente, BR-21941909 Rio De Janeiro, Brazil
来源：
BIOMASS & BIOENERGY | 2011年 / 35卷 / 08期
关键词：
Biodiesel; Propan-1,2,3-triol; 2,2-dimethyl-1,3-dioxolan-4-yl)methanol; Catalysis; Impurities; ION-EXCHANGE SODIUM; BIODIESEL SYNTHESIS; SOLID ACIDS; CHEMICALS; HYDROGENOLYSIS; ETHERIFICATION; PURIFICATION; ACETYLATION; DERIVATIVES; CONVERSION;
D O I：
10.1016/j.biombioe.2011.05.004
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The acid-catalyzed reaction of glycerol with acetone was studied in the presence of impurities that might be present in the crude glycerin of biodiesel production. These are mainly methanol, water and sodium chloride, in different amounts. The results indicated that methanol has minor effect on the glycerol conversion, whereas the concomitant addition of water and sodium chloride produces a drastic decrease of the conversion. The nature of the acid catalyst also affects the conversion in the presence of impurities. Amberlyst-15 (TM) acid resin is more sensible to the water content than zeolite Beta. The results of the glycerol adulteration with different contaminants were compared with the reaction using a crude glycerin from a Brazilian biodiesel industrial plant. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3547 / 3551
页数：5
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