Butyl-biodiesel production from waste cooking oil: Kinetics, fuel properties and emission performance. (15th January 2019)

• Record Type: Journal Article
• Authors: Gao, Yixia; Chen, Yunfeng; Gu, Jiahui; Xin, Zhong; Sun, Shuzhen
• Is Part Of: Fuel. Volume 236(2019)
• Page Start: 1489
• Page End: 1495
• Publication Date: 2019-01-15
• Subjects: Biodiesel -- Waste cooking oil -- Sulfamic acid -- Reaction kinetics -- Fuel properties -- Engine test; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2018.09.015
• Languages: English
• ISSNs: 0016-2361

Abstract

Graphical abstract: Highlights: Biodiesel were produced from waste cooking oil and 1-butanol. Heterogeneous sulfamic acid has a similar catalytic activity of sulfuric acid. A pseudo second-order reaction kinetics is also established at 90–110 °C. Fuel properties and engine emission performance of biodiesel were tested. Abstract: Butyl-biodiesel is produced by the transesterification of waste cooking oil and n-butanol. The sulfamic acid, a kind of heterogeneous acid, is used as the substitute of sulfuric acid to catalyze the reaction. The yield of biodiesel can reach 95.6% at the optimal reaction conditions (molar ratio of n-butanol to oil is 10:1, catalyst amount is 1.0 wt% (based on oil), reaction temperature is 110 °C and reaction time is 2 h). Besides, a pseudo second-order reaction kinetics is also established at the temperature range of 90–110 °C and the activation energy of 80.3 kJ/mol is calculated by the Arrhenius equation. Moreover, when compared with the FAMEs, the cold flow performance of FABEs is improved and the cold filter plugging point (CFPP) of FABEs is significantly decreased from 6.5 °C to 2 °C. Finally, the bench test was also investigated to make a detail comparison of the engine performance and the CH, CO, NOx and PM emissions of FAMEs, FABEs and 0# diesel.