Citation: Yuan Xue, Fengfei Chen, Bin Sun, Hualin Lin, Bin Dai, Sheng Han. Effect of nanocomposite as pour point depressant on the cold flow properties and crystallization behavior of diesel fuel[J]. Chinese Chemical Letters, ;2022, 33(5): 2677-2680. doi: 10.1016/j.cclet.2021.09.021 shu

Effect of nanocomposite as pour point depressant on the cold flow properties and crystallization behavior of diesel fuel

Yuan Xue ^{a, c} ,
Fengfei Chen ^{a, b} ,
Bin Sun ^a ,
Hualin Lin ^a ,
Bin Dai ^{b, *,} ,
Sheng Han ^{a, b, **,}

a.
School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
b.
School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
c.
School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

^**

db_tea@shzu.edu

hansheng654321@sina.com

Received Date: 1 July 2021
Revised Date: 10 August 2021
Accepted Date: 4 September 2021
Available Online: 10 September 2021

Figures(4)

The high effective nano-hybrid pour point depressant (PPD) has attracted extensive attention for its potential application in improving the cold flow properties of diesel fuel. In this paper, the nano-hybrid PPD was prepared by melt-blending method using three different alkyl chain lengths (i.e., tetradecyl, hexadecyl, and octodecyl) of n-alkyl methacrylate-maleic anhydride copolymers (R₁MC-MA, R₁ = C₁₄, C₁₆, C₁₈) and SiO₂ nanoparticles. The effect of those nano-hybrid PPDs on the cold filter plugging point (CFPP) and solidifying point (SP) depressing of diesel fuel were studied. Results indicated that nano-hybrid PPD showed much better performance on diesel fuel. The diesel fuel treated with 0.2 wt% C₁₄MC-MA/SiO₂ nano-hybrid PPD exhibited the best depression in CFPP and SP by 6 ℃ and 18 ℃, respectively, which higher than that of single C₁₄MC-MA. Viscosity-temperature curves and polarized optical microscopy were conducted to explore the performance mechanism; and results presented that nano-hybrid PPD of C₁₄MC-MA/SiO₂ could effectively lower the low-temperature viscosity, and modify the crystallization behavior and crystal morphology of diesel. Therefore, the cold flow properties of diesel were significantly improved.
- Diesel fuel,
- Pour point depressant,
- Nano-hybrid,
- Cold flow properties,
- Crystallization behavior
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