Biolubricants are promising substitutes to mineral oils or petroleum-based lubricants in many industrial applications. In the present study, a techno- economic analysis is carried out for evaluating the production of Ethylene glycol dioleoyl (EGD) biolubricant produced from waste cooking oil (WCO) and from biodiesel directly. Two scenarios of the process were studied. Scenario I was that the production process is comprised of two parts: (1) biodiesel production from WCO; (2) biolubricant production from biodiesel, while scenario II was only the second part (biolubricant production from biodiesel).The economic assessment for the process in Egypt (for both scenarios) was performed based on the results of process simulations and design calculations.In addition, it was found that the biolubricant could be sold with a very challenging prices and the process would still be economically feasible and profitable. Despite, both scenarios are promising, scenario I showed a much lower cost of manufacturing, selling price and thus, break-even time. The main reason of this result is that big biodiesel price compared to WCO price.

Keywords : Biolubricants; waste Cooking Oil (WCO); Economic Assessment; Rate of Return on Investment (ROI%); Payback Period (PBP).