/industries/oilandgas/b/oil-gas-blog/posts/triple-offset-valves-and-molecular-sieve-adsorption-applicationsAdsorption , different from absorption, is the process of the: … adhesion of atoms , ions or molecules from a gas, liquid or dissolved solid to a surface . [1] In process manufacturing operations, adsorption is sometimes used in dehydrationen-USTelligent Community 13