Abstract:
PROBLEM TO BE SOLVED: To provide an adsorbent body that contains activated carbon and catalyst for efficiently removing toxic elements, such as elemental mercury in an oxidized state, from a fluid stream of a carbon combustion gas, or the like, and to provide a process for producing the same, and a method for use thereof.SOLUTION: The adsorbent body contains: an activated carbon; a compound containing sulfur or sulfur partially in an oxidized state; hydroxides of alkali earths; and a metal catalyst, wherein the metal catalyst is selected from manganese sulphide or molybdenum sulphide, and at least a portion of the metal catalyst is chemically bonded to at least a portion of the sulfur.
Abstract:
Ceramic matrix composite articles comprising A ceramic, glass ceramic or glass matrix and a fiber reinforcement phase disposed within the matrix consisting of amorphous or crystalline inorganic fibers, wherein there is provided, on or in close proximity to the surfaces of the inorganic fibers, a layer of sheet silicate crystals constituting a sheet silicate interface between the inorganic fibers and the ceramic, glass, or glass-ceramic matrix. Optionally, the composition of the matrix may be the same as the sheet silicate interface so that the matrix provides the sheet silicate layer.
Abstract:
Ceramic matrix composite articles comprising a ceramic, glass-ceramic or glass matrix and a fiber reinforcement phase disposed within the matrix consisting of amorphous or crystalline inorganic fibers, wherein there is provided, on or in close proximity to the surfaces of the inorganic fibers, a layer of sheet silicate crystals constituting a sheet silicate interface between the inorganic fibers and the ceramic, glass, or glass-ceramic matrix. Optionally, the composition of the matrix may be the same as the sheet silicate interface so that the matrix provides the sheet silicate layer.
Abstract:
A shaped article and method for making the article is disclosed. The method involves forming a raw material mixture of a thermosetting resin which can be either one or more solid resins or one or more liquid resins, hydrophilic filler, temporary organic binder, and optionally an effective amount of extrusion aids. When the resin is a liquid, the filler is at least carbonizable. When the resin is a solid, the filler can be carbonizable and/or inorganic. The mixture is extruded into a shaped article, dried, and the resin is cured. The cured article can be further carbonized and activated. The activated carbon, especially a honeycomb can be used for adsorbing components from a workstream.
Abstract:
A method for making an activated carbon composite which involves providing a cross-linkable resin and a support material which is wettable by the resin. The support material can be cotton, chopped wood, sisal, non-fugitive material, and combinations of these. The support is contacted with the resin; and the resin and support material are dried. The resin and support material are then shaped, the resin is cured, and the resin and any carbonizable material are carbonized. The carbon is then activated to produce the product composite. An activated carbon composite produced by the above described method in which the carbon is in the form of a continuous structure reinforced by and uniformly distributed throughout non-fugitive support material.
Abstract:
An aluminum article having a mirror-like surface and an improved working tool and method for fabricating the article from an aluminum blank, the tool comprising a mechanically strong, abrasion-resistant body against which the aluminum blank is forced under pressure, the tool body comprising a whisker-reinforced, crystalline body consisting essentially of about 5-35 weight % of SiC whiskers and 65-95 weight % of a crystalline matrix. The predominant crystal phase in the crystalline matrix may be a CaO-Al2O3-SiO2 crystal phase.
Abstract:
Whisker-toughened ZrO2 products containing 5-20 volume percent SiC whiskers of relatively low aspect ratio (>20) in a stabilized polycrystalline ZrO2 matrix are provided, exhibiting a room temperature fracture toughness (KIC) at least 1.25 times that of the ZrO2 matrix, with relatively low porosity and good strength.
Abstract:
Disclosed herein, without limitation, are activated carbon honeycomb catalyst beds and systems for removing mercury and other toxic metals from a process stream, i.e, from flue gas of a coal combustion system. The activated carbon honeycomb can for example remove greater than 90% mercury from flue gas with a simple design and without adding material to the flue gas. Also disclosed herein, and without limitation, are methods for manufacturing and using the disclosed honeycomb catalyst beds and systems.