Experimental investigation on the structure characteristics of methanol/biodiesel particulate matter. (15th January 2023)

• Record Type: Journal Article
• Authors: Xu, Guangju; Liu, Shuai; Jia, Hekun; Zhao, Yang; Zhang, Qixia
• Is Part Of: Fuel. Volume 332(2023)Part 1
• Publication Date: 2023-01-15
• Subjects: Diesel engine -- Methanol/biodiesel -- Particulate matter -- Structure characteristics; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2022.126051
• Languages: English
• ISSNs: 0016-2361

Abstract

Graphical abstract: Highlights: Structural characteristics and adsorption capacity of the particulate matter are investigated. Methanol/biodiesel particulate matter shows adsorption capacity in relation to structure. Blending ratio and working conditions have significant effects on particle structural characteristics. Abstract: Methanol and biodiesel are oxygenated alternative fuels with potential applications. Structural characteristics of the particulate matter have an important influence on the application and regeneration of DPF. The particulate matter were collected and measured under different methanol/biodiesel blending ratios (0 %, 10 %, 20 %), engine loads (50 %, 75 %, 100 %) and speeds (2700 r/min, 3600 r/min). The results showed that the particulate matter possesses adsorption capacity and corresponds to structure. The pore radius is distributed between 8 and 80 nm, classified as mesoporous and microporous. When the methanol blending ratio increased from 0 % to 20 %, the average particle size of particulate matter decreased by 14 nm, the specific surface area increased by 8.05 m 2 /g, the average pore radius decreased by 3.113 nm and the pore volume increased by 0.016 mL/g. As the load increased, the average particle size and the average pore radius decreased, while the specific surface area and pore volume increased. As the speed increased, the average particle size, specific surface area and pore volume of the particles increased, while the average pore radius decreased. Overall, the adsorption capacity of particulate matter tended to increase with increasing blending ratio, engine load and speed.