Molecular-level petroleum refining by graded membranes

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ID: 324733
2026
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Abstract
Abstract Light naphtha is a critical feedstock whose full value relies on molecular-level fractionation into value-specific streams. Achieving such precise separation remains difficult because its components exhibit extremely similar physicochemical properties. Here, we address this challenge by developing a graded membrane cascade based on metal-organic framework CuBTC whose pore size and surface chemistry are continuously tuned through mild tannic acid treatment. Membranes with distinct sieving characteristics were created to sequentially co-separate linear and mono-branched alkanes and then selectively permeate aromatics. The integrated cascade fractionated a 15-component C5–C7 mixture into three high-purity streams, ethylene feedstock, chemical intermediates, and gasoline fuel, with recoveries of 85–90% and an estimated 91% reduction in energy consumption compared to conventional distillation. This strategy establishes an energy-efficient route toward molecular refining.
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openalex_W7202297484 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yuecheng Wang, F.Q. Dong, Yujie Ban, Ziyi Hu, Dong‐Dong Zhou, Jie‐Peng Zhang, Xiao‐Ming Chen, Weishen Yang
Journal national science review
Year 2026
DOI
10.1093/nsr/nwag488
URL
https://doi.org/10.1093/nsr/nwag488
Keywords Keywords not found

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