• Crude oil fractionation by means of mesoporous polyacrylonitrile membranes
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  • 2026-06-26 11:25:53|
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ㅇ [Title]         Crude oil fractionation by means of mesoporous polyacrylonitrile membranes

  

ㅇ [Journal]    Nature


                                                                         
ㅇ [Author]     Jihoon Choi†, Hyeokjun Seo†, Minyong Lee, Woong-Chul Shin, Jaemin Choi, Keonwoo Choi, Min-Jun Jang, Sung Gap Im, Jae W. Lee*,

                              Ryan P. Lively*, and Dong-Yeun Koh*




 


ㅇ [Abstrct]


Conventional atmospheric and vacuum distillation are highly energy-intensive processes in petroleum refining, consuming over 1,100 TWh annually and emitting more

than 160 million metric tonnes of CO₂ equivalent each year. As an energy-saving alternative, this study demonstrates that porous polyacrylonitrile (PAN) membranes can

serve not only as support layers but also as effective crude-oil fractionation membranes. Under tangential flow, PAN membranes selectively enrich lighter hydrocarbon

fractions such as naphtha and kerosene with stable performance over four weeks. The selectivity arises from the self-limiting deposition of heavy hydrocarbons inside the

membrane pores, which narrows the effective pore size to the sub-2-nm range. Also, process simulations suggest that PAN-membrane-based pre-fractionation could

substantially reduce energy use, cooling water demand, and CO₂ emissions compared with conventional distillation.

 






 
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