Adsorbents for the purification of hydrocarbon streams, processes for their preparation and methods for removing contaminants from hydrocarbon streams

摘要

A solid shaped adsorbent for purifying hydrocarbon streams comprising an alumina component, a zeolite component and a metal component (Madd), the metal component being selected from the alkali metals sodium, potassium, lithium, rubidium, cesium and mixtures thereof and in an amount of at least 10 mol%. the stoichiometric amount of metal (M) required to balance the negative charge of the zeolite lattice, expressed as the oxide, and the metal component (Madd) in an amount of 0.015 to 0.08 mole of metal as the oxide per 100 grams Adsorbent is present.