Process for purifying hydrogen streams using composite adsorbents
AssigneeUop LLC
InventorVladislav I. Kanazirev
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Abstract
A process for purifying various hydrocarbon streams using a composite adsorbent is disclosed. The adsorbent contains a zeolite, an alumina and a metal component. The metal component (Madd) is present in an amount (over and above the amount of exchangeable M metal in the zeolite) at least 10 mole % the stoichiometric amount of metal (M) (expressed as the oxide) needed to balance the negative charge of the zeolite lattice. In a specific application an adsorbent comprising zeolite X, alumina and sodium is used to purify an ethylene stream in order to remove CO2, H2S, methanol, and other S- and O-containing compounds from the stream.
Claims9
A process for removing contaminants from hydrocarbon streams comprising contacting the stream with a solid shaped adsorbent, at adsorption conditions to remove at least a portion of at least one contaminant, the adsorbent comprising an alumina component, a zeolite component and a metal component (Madd), the metal component present in an amount from about 0.015 to about 0.08 moles of Madd, expressed as the oxide, per 100 g of adsorbent.
Dependencies are inferred from the claim text.