The present invention relates generally to compositions useful in adsorption and reactive processes comprising an adsorbent powder, such as a zeolite, and a binder mixed to form an agglomerate having a porosity of 0.30≦εp≦0.42 and a N2 pore diffusivity Dp≧3.5×10−6 m2/s and wherein the mean particle diameter of the crystalline zeolite powder is 10 μm or less; the mean particle diameter of the binder is 0.10 dA or less, and the binder concentration is 10% or less expressed on a dry weight basis.