Ethane/ethylene separation in a metal-organic framework with iron-peroxo sites

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Science  26 Oct 2018:
Vol. 362, Issue 6413, pp. 443-446
DOI: 10.1126/science.aat0586

A preference for ethane

Industrial production of ethylene requires its separation from ethane in a cryogenic process that consumes large amounts of energy. An alternative would be differential sorption in microporous materials. Most of these materials bind ethylene more strongly that ethane, but adsorption of ethane would be more efficient. Li et al. found that a metal-organic framework containing iron-peroxo sites bound ethane more strongly than ethylene and could be used to separate the gases at ambient conditions.

Science, this issue p. 443

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