CAS-TWAS > Green Technology > The Rebirth of Waste Cooking Oil to Novel Bio-based Surfactants

Biochemical Engineering for Biomass Refinery

The Rebirth of Waste Cooking Oil to Novel Bio-based Surfactants

Abstract

 
Waste cooking oil (WCO) is a kind of non-edible oil with enormous quantities and its unreasonable dispose may generate negative impact on human life and environment. However, WCO is certainly a renewable feedstock of bio-based materials. To get the rebirth of WCO, we have established a facile and high-yield method to convert WCO to bio-based zwitterionic surfactants with excellent surface and interfacial properties. The interfacial tension between crude oil and water could reach ultra-low value as 0.0016 mN m−1 at a low dosage as 0.100 g L−1 of this bio-based surfactant without the aid of extra alkali, which shows a strong interfacial activity and the great potential application in many industrial fields, in particular, the application in enhanced oil recovery in oilfields in place of petroleum-based surfactants.
 
Scientific Reports
 
5,
 
Article number:
 
9971
 
doi:10.1038/srep09971
Received
 
Accepted
 
Published