| abstract |
The present invention is an adsorbent comprising an alumina support and at least one alkali element, wherein the adsorbent introduces at least one alkali element that is the same as or different from sodium onto the alumina support. The sodium concentration of the alumina support is expressed as Na 2 O equivalent and is 1000 to 5000 ppm by weight with respect to the total weight of the support before the introduction of the alkali element (s). , Relating to the adsorbent. The present invention also provides a manufacturing method and acid molecules of the adsorbent, for example their use for the removal of COS and / or CO 2. |