The catalytic conversion of waste cooking oil (WCO) with high acid value (120.37 mg KOH/g) to biodiesel has been studied in low-cost SO3H-functionalized quaternary ammonium ionic liquid as catalyst. The ionic liquid (IL) catalyst was efficient in catalysing the simultaneous esterification and transesterification reactions of WCO and methanol.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/one-step-production-biodiesel-waste-cooking-oil-catalysed-so3h-functionalized
[2] http://www.currentscience.ac.in/Volumes/110/11/2129.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/author/jing-juan-qi
[4] http://admin.indiaenvironmentportal.org.in/category/author/jin-qing-lin
[5] http://admin.indiaenvironmentportal.org.in/category/author/hong-quan-fu
[6] http://admin.indiaenvironmentportal.org.in/category/journal/current-science
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biodiesel
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waste-conversion
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biofuels