Adsorption of acid gases

摘要

An adsorption process is disclosed for removal of acid gas contaminants from a liquid or gas which comprises providing an activated alumina adsorbent which is impregnated with a compound selected from the group consisting of one or more alkali metal compounds, one or more alkaline earth metal compounds, or a mixture of such compounds; contacting the liquid or gas containing acid gas contaminants with the activated alumina adsorbent to adsorb enough acid gas contaminant in the liquid or gas to lower the contaminant content of the liquid or gas, the alumina adsorbent being formed from agglomerated calcined alumina powder and provided with a mercury pore volume of pores greater than 500 angstroms at least 0.10 cc/g.

主权项

1. A process for removal of an acid gas contaminant from a liquid or gas by adsorption which comprises:
contacting the liquid or gas containing acid gas contaminant with an activated alumina adsorbent impregnated with from 0.1 to 15 wt. % of a metal compound, based on the weight ratio of the metal as oxide in said compound to said impregnated adsorbent, said metal compound selected from the group consisting of one or more alkali metal compounds, one or more alkaline earth metal compounds, or a mixture of such compounds, to adsorb the acid gas contaminant in the liquid or gas for a period of time sufficient to lower the acid gas contaminant content of the liquid or gas; and wherein said impregnated alumina adsorbent has a mercury pore volume of pores greater than 500 angstroms of at least 0.10 cc/g.