摘要:
The present invention refers to a composite adsorbent bead for the separation of at least one gas component from a gas mixture, based on a core-shell composite bead, a process of its production and a gas separation process using these composite adsorbent beads.
摘要:
In an activated carbon for adsorbing a noble metal from an aqueous solution containing the noble metal, the difference (absolute value) between a zeta-potential in a 10 mmol/L aqueous solution of sodium tetraborate and a zeta-potential in a 0.01 mmol/L aqueous solution of sodium tetraborate is adjusted to not more than 18 mV and the pore volume of pores with a pore radius of not more than 1 nm is adjusted to 150 to 500 mm 3 /g. The activated carbon of the present invention may have a carbohydrate solution decolorizingperformance of not less than 30% . The aqueous solution containing the noble metal may be a plating wastewater. According to the present invention, a noble metal can efficiently be adsorbed (or recovered) from a solution containing the noble metal.
摘要:
The invention concerns the use of zeolite adsorbent materials in agglomerate form comprising at least one zeolite of type A, for gas phase separation, in particular the separation of carbon dioxide (CO 2 ) from Natural gas (GN), in pressure-modulated methods and/or in temperature-modulated methods. The invention also concerns the method for decarbonating natural gas employing said zeolite adsorbent material, and the natural gas decarbonation unit comprising said zeolite adsorbent material.
摘要:
A method is described for preparing a sorbent precursor comprising the steps of: (i) forming agglomerates comprising a particulate support material, (ii) coating the agglomerates with a coating mixture powder comprising a particulate sulphidable copper compound and a particulate calcined, rehydratable alumina to form a coated agglomerate, and (iii) drying the coated agglomerate to form a dried sorbent precursor. The sorbent precursor may be sulphided and used to remove heavy metals such as mercury from fluid streams.
摘要:
A method is described for preparing a sorbent comprising the steps of: (i) mixing together a particulate copper sulphide material and a particulate calcined rehydratable alumina, (ii) shaping the mixture, and (iii) drying the shaped mixture to form a dried sorbent.
摘要:
Disclosed are silica bound zeolite adsorbent particles which possess high volumetric gas adsorption capacity for the adsorption and/or desorption of gases. The adsorbent are highly effective as a gas source in volumetrically constrained applications. The silica-bound zeolite adsorbents possess a relatively high zeolite content simultaneously with a relatively low intra-particle pore volume as compared to the clay bound zeolite aggregates heretofore used as a gas source in volumetrically constrained environments, e.g. instant beverage carbonation processes, devices or systems.
摘要:
The present invention concerns a material comprising a porous material and at least one organic or inorganic binder, in which the quantity of binder is strictly less than 10% by weight relative to the total weight of said material. The present invention also concerns the method for preparing same and the uses thereof as a molecular adsorbent, in particular in the aerospace field.