| 摘要 |
The invention is directed to a process for the adsorption of organic vapours from gas mixtures containing them onto activated carbon, where the process comprises passing the gas mixture consecutively through at least a first and a second adsorption system, the first system consisting of activated carbon having a first adsorption rate for the organic vapours and the second system consisting of an adsorbent having a second adsorption rate for the organic vapours, the second adsorption rate being higher than the first adsorption rate, more in particular to such process when used in the operation of vehicle internal combustion engines.
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