We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Tuning the Catalytic Activity of Recyclable Heterogeneous Catalysts for the Direct Etherification Reaction of Glycerol Using Antagonistic Additives.
- Authors
Lee, Je Seung; Jang, Eunji; Kim, Dae Won; Park, Seo Kyung
- Abstract
Using zeolite as a heterogeneous catalyst, the reaction conditions were optimized to increase the yield and selectivity of diglycerol (DG) and triglycerol (TG) in the direct etherification reaction of glycerol. By the addition of weakly acidic alkali metal-based inorganic salts (NaHSO4 and KHSO4), the selectivities and yields of DG and TG increased. Although the conversion of glycerol was lowered due to the role of the additive as an inhibitor, the reaction conditions were optimized by controlling the amounts and reaction times of the additives to increase the yields of DG and TG. Under the optimized condition, the glycerol conversion was as high as 85.4%, and the highest yields of DG and TG were observed as 54.1% and 21.3%, respectively. The recyclability of the catalysts was much enhanced by the influence of the additives suppressing the formation of oligomers.
- Subjects
CATALYSTS recycling; HETEROGENEOUS catalysts; CATALYTIC activity; ETHERIFICATION; ZEOLITE catalysts; GLYCERIN; WASTE recycling
- Publication
Catalysts (2073-4344), 2022, Vol 12, Issue 2, p220
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal12020220