Aerogels for the separation of asphalt-containing oil-water mixtures and the effect of asphalt stabilizer

In order to separate the asphalt-containing oil-water mixture, an aerogel film was produced through supercritical drying of a polymer gel synthesized using the ring opening metathesis polymerization of dicyclopentadiene (DCPD). The polydicyclopentadiene (PDCPD)-based aerogels have a porous structure...

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Bibliographic Details
Published in:RSC advances 2020-06, Vol.1 (42), p.2484-24846
Main Authors: Lin, Bin, Wang, Zufei, Zhu, Qing-jun, Binti Hamzah, Wafaa Nazurah, Yao, Zhen, Cao, Kun
Format: Article
Language:English
Subjects:
Aerogels
Asphalt
Chemistry
Drying oils
Hydrophobicity
Lipophilicity
Metathesis
Polymer gels
Ring opening polymerization
Separation
Toluene
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Summary:In order to separate the asphalt-containing oil-water mixture, an aerogel film was produced through supercritical drying of a polymer gel synthesized using the ring opening metathesis polymerization of dicyclopentadiene (DCPD). The polydicyclopentadiene (PDCPD)-based aerogels have a porous structure, super-lipophilicity and super-hydrophobicity which resulted in successful separation of the simple oil-water mixture, oil-water emulsion and asphalt-containing toluene-water mixture. However, the presence of asphalt decreases the separation efficiency by blocking the pores and acting as an emulsifier. An asphalt stabilizer was then employed to reduce the asphalt particle size and weaken the flow passage blockage, consequently improving the filtration speed and the asphalt content in the filtrate. The combination of PDCPD aerogel film with an asphalt stabilizer has great application prospects for separating asphalt-containing oil-water mixtures. In order to separate the asphalt-containing oil-water mixture, an aerogel film was produced through supercritical drying of a polymer gel synthesized using the ring opening metathesis polymerization of dicyclopentadiene (DCPD).
ISSN:2046-2069
2046-2069
DOI:10.1039/d0ra00544d