Lower Reactivity Adsorbent and Higher Oxygenate Capacity for Removal of Oxygenates from Olefin Streams
AssigneeBASF SE
InventorsWilliam Dolan, Barry Speronello, Alfonse Maglio, Dennis Reinertsen, Dana Rehms Mooney
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Abstract
An improved adsorbent useful in removing contaminants from various hydrocarbon streams comprises a zeolite, an alumina and an added metal component provided in the adsorbent by initially contacting primarily the zeolite with the added metal. In a specific application, an adsorbent comprising sodium-impregnated zeolite Y and alumina is used to purify an ethylene stream in order to remove CO2, H2S, methanol, and other S- and O-containing compounds.
Claims20
A solid adsorbent for purifying hydrocarbon streams comprising an alumina component, a zeolite component and a added metal component, the added metal component being present in an amount of from about 0.0075 to 0.0135 moles of the metal as the oxide per 100 g of adsorbent and where the alumina is present in an amount from about 40 to about 90 wt. % of the adsorbent.
A solid adsorbent for purifying hydrocarbon streams comprising an alumina component, a zeolite component and an added metal component, the added metal component being initially added primarily to the zeolite such that the added metal is present in the zeolite component in amounts greater than if the same amount of initial metal was added to a mixture of the zeolite and the alumina.
A process for preparing a solid adsorbent for purifying hydrocarbon streams comprising an alumina component, a zeolite component and an added metal component where the alumina is present in an amount from about 40 to about 90 wt. % of the adsorbent;
- the process comprising combining a zeolite component with an added metal component precursor to form an impregnated zeolite, combining the impregnated zeolite and alumina to form a shaped article and activating the article at activation conditions to give the solid adsorbent.
Dependencies are inferred from the claim text.