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 provides a high capacity adsorbent for removing sulfur from hydrocarbon streams. The adsorbent comprises a composite material containing particles of a nickel phosphide complex NixP. The adsorbent is utilized in a sulfur removal process that does not require added hydrogen, and run at relatively low temperatures ranging from about 150 °C to about 400 °C. The process of this invention enables 'ultra-deep' desulfurization down to levels of about 1 ppm and less.
摘要:
There are provided a nanowire filter, a method for manufacturing the same, a filtering apparatus having the same, and a method for removing material adsorbed on the nanowire filter. The filtering apparatus includes: a filter having a supporting member and a plurality of nanowires supported on the supporting member and arranged in a crystallized state; and a body into which the filter is inserted and secured, and which has an inlet for guiding an introduced fluid to the filter and an outlet for discharging the fluid filtered through the filter to the outside.
摘要:
Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The composition is derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxitic ores. Exemplary sulfidizing compounds are H 2 S, Na 2 S, K 2 S, (NH 4 ) 2 S, CaS x . The sulfur content typically is from about 0.2 to about 10% above the residual sulfur in the red mud. The sulfidized red mud is effective for sorbing some contaminants, such as mercury, which are not effectively sorbed by red mud. Conversely, red mud is effective for sorbing other contaminants, such as arsenic, which are not effectively sorbed by sulfidized red mud. Thus, some aspects of the invention utilize combinations of red mud and sulfidized red mud, which potentially can allow for the extraction of a wider range of contaminants.
摘要:
The invention relates to a method for producing porous inorganic solids on the basis of an aqueous dispersion of particles that are composed of a polymer and finely divided inorganic solids.
摘要:
L'invention concerne le domaine de la dépollution des fumées, en particulier des fumées issues d'installations de combustion industrielles, notamment des incinérateurs, et d'installations chauffage, notamment des fours, par exemple des fours verriers. L'invention fournit un composite comprenant du bicarbonate de sodium (NaHCO 3 ), du carbonate de sodium (Na 2 CO 3 ) et au moins un sel d'ammonium. L'invention fournit également un procédé de préparation de ce composite ainsi qu'un procédé de dépollution mettant en oeuvre ce composite.
摘要:
There are described getter systems consisting of one or more deposits of getter materials wherein at least one of said deposits is in contact with a layer of a material having H2O transport properties.
摘要:
A composition, containing vanadium, phosphorus and a support is disclosed. A method of preparing such composition is also disclosed. The composition is employed in a process to remove a heavy metal from a gaseous feed stream which can optionally include a separate heavy metal adsorption stage.