TY - JOUR

T1 - Low-Temperature N2 and He Separation on a HKUST-1 Membrane

AU - Grenev, I. V.

AU - Gavrilov, V. Yu

N1 - The study was supported by the Russian Foundation of Basic Researches (project no. 19-33-60087). The authors are grateful to the Supercomputer Center of the Novosibirsk State University (NUSC) and the Siberian Supercomputer Center of Siberian Branch Russian Academy of Sciences for providing supercomputer equipment. Публикация для корректировки.

PY - 2023/11

Y1 - 2023/11

N2 - 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.

AB - 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.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85178161182&origin=inward&txGid=3737ef489ff55ad6c873c9a777559772

UR - https://www.mendeley.com/catalogue/f4d04d4a-450b-333f-8645-33f3a13ca7ff/

U2 - 10.1134/S2070205123700995

DO - 10.1134/S2070205123700995

M3 - Article

VL - 59

SP - 822

EP - 827

JO - Protection of Metals and Physical Chemistry of Surfaces

JF - Protection of Metals and Physical Chemistry of Surfaces

SN - 2070-2051

IS - 5

ER -