title: Biodiesel production using alkaline ionic liquid and adopted as lubricity additive for low-sulfur diesel fuel.
abstract: Preparation of biodiesel from vegetable oils, such as rapeseed oil, soybean oil and sunflower oil, catalyzed by an alkaline ionic liquid 1-butyl-3-methylimidazolium imidazolide ([Bmim]Im) was investigated in this work. The results demonstrated that [Bmim]Im exhibited high activity and the yield of biodiesel was up to 95% or more when molar ratio of methanol to vegetable oil was 6:1, ionic liquid dosage was 6 wt.%, reaction temperature was 60°C, and reaction time was 60 min. After [Bmim]Im was used for the sixth time, the yield of biodiesel still remained at about 95%. The effects of the biodiesels on the lubricity of low-sulfur diesel fuel were also investigated using the High Frequency Reciprocating Rig method, and the results showed that sunflower biodiesel and soybean biodiesel had higher lubrication performance than that of rapeseed biodiesel.
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266555, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Luo
authors.forename: Weiyu
authors.initials: W
authors.lastname: Fan
authors.forename: Yang
authors.initials: Y
authors.lastname: Li
authors.forename: Guozhi
authors.initials: G
authors.lastname: Nan
mesh_terms: D000468:Alkalies / Q000737:chemistry*; D056804:Biofuels; D001709:Biotechnology / Q000379:methods*; D005227:Fatty Acids / Q000032:analysis; D005229:Fatty Acids, Monounsaturated; D005742:Gasoline; D007093:Imidazoles / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D008153:Lubrication; D000432:Methanol / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry; D000074262:Rapeseed Oil; D013024:Soybean Oil / Q000737:chemistry; D013455:Sulfur / Q000737:chemistry*; D000074242:Sunflower Oil; D013696:Temperature; D013997:Time Factors
chemical_list: C525963:1-butyl-3-methylimidazolium; D000468:Alkalies; D056804:Biofuels; D005227:Fatty Acids; D005229:Fatty Acids, Monounsaturated; D005742:Gasoline; D007093:Imidazoles; D052578:Ionic Liquids; D010938:Plant Oils; D000074262:Rapeseed Oil; D000074242:Sunflower Oil; D013455:Sulfur; D013024:Soybean Oil; D000432:Methanol