Organosiloxane membranes for heavy aromatic oil fractionation

The industrial separation of hydrocarbons relies on distillation. Organic solvent nanofiltration can provide an energy-efficient alternative. We prepared high performance organosiloxane membranes for fractionation of heavy aromatics. They achieved a high permeance up to 0.13 L m −2 h −1 bar −1 , wit...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2024-07, Vol.6 (62), p.883-886
Main Authors: Ma, Liang, Hou, Min, Wang, Yuemei, Tong, Weiyi, Zheng, Junlin
Format: Article
Language:English
Subjects:
Aromatic compounds
Fractionation
Hydrocarbons
Membranes
Nanofiltration
Rejection rate
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Summary:The industrial separation of hydrocarbons relies on distillation. Organic solvent nanofiltration can provide an energy-efficient alternative. We prepared high performance organosiloxane membranes for fractionation of heavy aromatics. They achieved a high permeance up to 0.13 L m −2 h −1 bar −1 , with a rejection rate of 88.7% for hydrocarbons with five aromatic rings. Organosiloxane membranes were fabricated on porous polyacrylonitrile supports by a UV crosslinking method, and exhibited excellent organic solvent nanofiltration separation performance towards the actual aromatic industrial feedstock.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d4cc02669a