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Performance improvement of the benzyl methacrylate-methacrylate copolymers pour point depressant by hybrid with nano-silica for diesel fuels

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posted on 2020-04-09, 14:46 authored by Fang Zhang, Jinbao Liu, Xian Zhu, Dongyuan Jin, Taishun Yang, Suya Yin, Hualin Lin, Sheng Han, Yuan Xue

In our previous work, the addition of benzyl methacrylate-methacrylate copolymers (MB-R1MC, R1 = C12, C14, C16, C18) could effectively improve the cold flow property of diesel fuel. To further improve the performance, nano-SiO2 was used to hybrid with the MB-R1MC to study, and the effect of nano-SiO2/MB-R1MC on the cold flow properties of diesel fuel were studied. Results show that nano-SiO2/MB-C14MC exhibited better depressive effects in diesel than that of MB-C14MC at the same dosages. The nano-SiO2/MB-C14MC in 1: 6 mass ratios reduced the cold filter plugging point and solid point by 16°C and 32°C at 0.3 wt.%, respectively. Additionally, the action mechanism was explored by differential scanning calorimetry, polarized light microscopy, and rheological analysis.

Funding

This work was supported from the Chenguang Program of Shanghai Education Development Foundation and Shanghai Municipal Education Commission (Project Number 19CG69 and 18CGB12), National Natural Science Foundation of China (Project Number 21878188 and 21975161), Shanghai Excellent Technology Leaders Program (Project Number 17XD1424900).

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