摘要:
An adsorbent composition having a bismuth material on a support containing at least one of a metal oxide, a metalloid oxide or an activated carbon and methods of making and using the same. The adsorbent composition is useful for adsorbing arsine from a fluid stream.
摘要:
The present invention relates to a method of adsorbing an arsenic material, comprising: contacting an arsenic-containing fluid with an adsorbent composition, the adsorbent composition comprising a bismuth material on a support, wherein the support comprises a moisture content of about 15% by mass or less.
摘要:
This invention is directed to amorphous and crystalline titanosilicate materials that have an unexpected selectivity for cesium and strontium, especially in the presence of high levels of competing ions. The titanosilicates of this invention show very high, unexpected selectivity in the presence of such competing cations such as sodium, calcium, magnesium and potassium, such as present in seawater.
摘要:
The present invention relates to a solid adsorbent for purifying hydrocarbon streams comprising an alumina component, a zeolite component and an added metal component, wherein the added metal component is present in an amount of from about 0.0075 to 0.05 moles of the metal as the oxide per 100 g of adsorbent and wherein the alumina is present in an amount from about 40 wt% to about 90 wt% of the adsorbent, as well as to a method of removing contaminants from a hydrocarbon stream comprising contacting the hydrocarbon stream with the solid adsorbent.
摘要:
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 CO 2 , H 2 S, methanol, and other S-- and O-- containing compounds.