| abstract |
The present invention relates to an adsorbent comprising an alumina support and at least one alkali element, such adsorbent may be obtained by introducing at least one alkali element, identical to or different from sodium, onto an alumina support whose sodium content is Expressed as the equivalent of Na2O, before the introduction of alkali or alkaline elements, between 1,000 and 5,000 ppm by weight relative to the total weight of the support. The invention also relates to processes for preparing said adsorbent and for use in a process for the removal of acidic molecules such as carbonyl sulfide (COS) and/or carbon dioxide CO2). |