Low-Temperature N2 and He Separation on a HKUST-1 Membrane

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Technologies of membrane-based gas separation can be integrated into existing industrial processes for low-temperature helium recovery from natural gas at the stages of crude helium separation from the N2/He mixture and its purification. The effectiveness of these processes is most affected by the properties of the materials from which the membrane is made. Due to their unique properties, metal-organic framework are promising materials for use in gas separation. In the present work, both the Monte Carlo and equilibrium molecular dynamics methods were employed to examine the temperature dependence of membrane selectivity and nitrogen permeability for separation of an equimolar mixture of N2 and He by a HKUST-1-based membrane at a pressure drop of 0.1, 0.3, and 1 MPa. It was shown that the selection of optimal temperature conditions made it possible to obtain a significant increase in membrane selectivity and permeability for nitrogen compared to corresponding parameters at room temperature.

Sobre autores

I. Grenev

Novosibirsk State University; Boreskov Institute of Catalysis

Email: greneviv@catalysis.ru
630090, Novosibirsk, Russia; 630090, Novosibirsk, Russia

V. Gavrilov

Boreskov Institute of Catalysis

Autor responsável pela correspondência
Email: greneviv@catalysis.ru
630090, Novosibirsk, Russia

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Declaração de direitos autorais © И.В. Гренев, В.Ю. Гаврилов, 2023