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Gas separations

Adaptive alkyne trap purifies crude ethylene

Removing trace alkyne contaminants in crude ethylene is challenging by traditional catalytic hydrogenation. Now, adsorptive separation through advanced materials design selectively sequesters alkynes in a single-step pathway to produce high-purity ethylene from complex mixtures.

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Fig. 1: An adaptive pocket array in a porous material serving as alkyne traps for one-step ethylene purification.

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Correspondence to Yi Xie or Banglin Chen.

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Xie, Y., Chen, B. Adaptive alkyne trap purifies crude ethylene. Nat Chem Eng 1, 33–34 (2024). https://doi.org/10.1038/s44286-023-00007-z

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