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- Title
Caprolactam-Based Brønsted Acidic Ionic Liquids for Biodiesel Production from Jatropha Oil.
- Authors
Hui Luo; Heng Yin; Rui Wang; Weiyu Fan; Guozhi Nan
- Abstract
Caprolactam-based ionic liquids show many advantages, such as the lower toxicity, lower cost, and a simple preparation process. In this work, caprolactam-based ionic liquids were prepared and adopted as catalysts for the transesterification of Jatropha oil with methanol. The results demonstrated that the SO3H-functional caprolactam-based ionic liquids have higher catalytic activity than those of the caprolactam-based ionic liquids without sulfonic group or the SO3H-functional pyridine -based ionic liquids, attributed to their stronger Brønsted acidity. By optimizing the reaction parameter, the biodiesel yield catalyzed by 1-(4-sulfonic group) butylcaprolactamium hydrogen sulfate ([HSO3-bCPL][HSO4]) could reach above 95% at 140 °C for 3 h. Furthermore, the ionic liquid had a good reusability.
- Subjects
CAPROLACTAM; BROMINE compounds; CATALYTIC activity
- Publication
Catalysts (2073-4344), 2017, Vol 7, Issue 4, p102
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal7040102