| 摘要 |
Enriching at least one component of a gaseous mixture of substances, comprises: (i) contacting a stream of a first gaseous mixture of substances containing at least one component to be enriched, with a composite material at a first pressure to obtain a loaded composite material; (ii) interrupting the flow of the gaseous mixture of substances; and (iii) desorbing the component to be enriched from the loaded composite material by reducing the pressure, to obtain a second gaseous mixture of substances, and removing the second gaseous mixture of substances from the composite material. Enriching at least one component of a gaseous mixture of substances, comprises: (i) contacting a stream of a first gaseous mixture of substances containing at least one component to be enriched, with a composite material at a first pressure such that the component to be enriched is adsorbed on the composite material to obtain a loaded composite material; (ii) interrupting the flow of the gaseous mixture of substances; and (iii) desorbing the component to be enriched from the loaded composite material by reducing the pressure to a second pressure, to obtain a second gaseous mixture of substances, and removing the second gaseous mixture of substances from the composite material. The difference between the first pressure and the second pressure is >= 200 mbar. The composite material comprises (a) a porous matrix made of a fluorine-containing polymer with a proportion of tetrafluoroethylene monomer units of at least 95 mol%, based on the total number of monomer units, (b) zeolite particles, which are embedded in the matrix, (c) optionally at least one metallic material (0-90 wt.%, based on the sum of the weights of all components), and (d) optionally at least one further component, where the ratio of the weight of the component (a) and the sum of the weights of the components (b) and (d) is 2:98-25:75, and the ratio of the weight of component (b) and the weight of the component (d) is 80:20-100:0. |
