Class 502/435 - Exposure to hot flue or exhaust gas

Subclass of Class 502 - Catalyst, solid sorbent, or support therefor: product or process of making
Definition: Process in which the material is bathed in (treated by contact
No. of patents: 23
Last issue date: 04/03/2012

Number	Title	Issue Date
8150776	Methods of operating a coal burning facility Methods involve adding sorbent components, such as calcium oxide, alumina, and silica, as well as optional halogens as part of environmental control. Use of the sorbents leads to significant reductions in sulfur and mercury emissions that otherwise would result from...	04/03/2012
6595147	Method for adsorbing contaminants from flue gas A method and apparatus for controlling or removing mercury, mercury compounds and high molecular weight organics, if present, from a resource recovery exhaust stream by separately adding a carbonaceous char to the flue gas while it is still within the uni...	07/22/2003
6589904	Activated carbon and method for producing it The present invention provides an activated carbon produced by a process, which includes: activating a carbonaceous material, to obtain an activated carbonaceous material; and contacting the activated carbonaceous material with an acid. Another embodiment of t...	07/08/2003
6558454	Method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents A process for removing vapor phase contaminants from a gas stream includes the step of adding a raw carbonaceous starting material into a gas stream having an activation temperature sufficient to convert the raw carbonaceous starting material into an acti...	05/06/2003
6465554	Ruthenium and osmium carbene carbonyl catalysts The invention relates to compositions of hexacoordinated ruthenium and osmium carbenes with a carbonyl group as ligand and a vinyl group as substituent on the carbene group as catalysts for the photoinduced ring-opening metathesis of strained cycloolefins...	10/15/2002
6451094	Apparatus and method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents A process for removing vapor phase contaminants from a gas stream includes the step of adding a raw carbonaceous starting material into a gas stream having an activation temperature sufficient to convert the raw carbonaceous starting material into an acti...	09/17/2002
6439138	Char for contaminant removal in resource recovery unit A method and apparatus for controlling or removing mercury, mercury compounds and high molecular weight organics, if present, from a waste incineration apparatus exhaust stream by separately adding a carbonaceous char to the flue gas while the flue gas is...	08/27/2002
5972826	Densified carbon black adsorbent and a process for adsorbing a gas with such an adsorbent The present invention discloses an adsorbent comprising a densified carbon black. The densified carbon black comprising the adsorbent preferably has an increase in density of from about 100% to about 500% above the undensified form of the adsorbent. The d...	10/26/1999
5438029	Activated carbon and production thereof A preparing process of activated carbon includes steps of: combusting scrap tires containing metal wire at 400° C. to 900° C. under the presence of oxygen, carbon dioxide and vapor; reheating the generated combustible gases up to 800° C. to 900° C. by...	08/01/1995
5124292	Process for the regeneration of activated carbon product by reverse burn gasification Process for the regeneration of an activated carbon or activated coke product comprising loading the activated product into a reaction vessel having two ends, initiating a flame front at one end of the vessel, introducing an oxidant to the other end of th...	06/23/1992
4985150	Water treatment using oxidized coal Oxidized coal is used to remove dissolved or suspended matter from aqueous mediums. It is particularly effective in removing metal ions dissolved in aqueous mediums and/or bacteria from aqueous mediums....	01/15/1991
4734394	Process for producing molecular sieve carbon fibers Molecular sieve carbon fibers capable of separating and purifying nitrogen from air in large quantities are provided. The carbon fibers have diameters of 5 to 50 μm and micropores opening directly at the surface of the carbon fibers with pore sizes of 0....	03/29/1988
4615993	Method and device for carrying out gas/solid reactions particularly the activation and re-activation of activated carbon Untreated coal is activated with steam at temperatures of 600° to 950° C. in a vibrating fluid bed, which is directly heated. The untreated coal is pre-dried by counter-current passage of the waste gases from the reaction either during feeding of the un...	10/07/1986
4594440	Process for recovering and purifying herbicidal phenoxybenzoic acid derivatives Crude phenoxybenzoic acid herbicide, e.g., acifluorfen, having one or more undesirable isomer/by-product impurities associated therewith is separated therefrom employing an inert solvent which is selective for the isomers/other by-products....	06/10/1986
4492771	Process for producing carbon material for de-sulfurization from a binder with a blend of noncoking and coking coal Carbon material for de-sulfurization excellent in adsorptibility and mechanical strength can be produced from coal by controlling the physical properties of the raw material coal before its shaping to particular ranges, and subjecting the shaped coal to c...	01/08/1985
4313849	Process for the production of activated carbon from a moist organic substance Coke or activated carbon is produced from a moist organic substance, for example from a residue from the production of furfural. Initially the moist organic substance is introduced together with hot flue gases into a drying zone of a cylinder furnace and ...	02/02/1982
4219537	Desulfurization and low temperature regeneration of carbonaceous adsorbent A gas desulfurization process is disclosed wherein a particulate, partially oxidized coal is used as an adsorbent for gaseous sulfur oxides and is regenerated by contact with a low temperature recycled stream of its own desorbed off-gas containing at leas...	08/26/1980
4206135	Catalyst comprising nickel supported on tantalum oxide or niobium oxide and their use as hydrocarbon synthesis catalysts in CO/H₂ reactions An improved method for the enhanced synthesis of paraffinic hydrocarbons with chain lengths of from 2 to 6 carbon atoms inclusive with reduced methane formation which method comprises the steps of passing a synthesis gas stream comprising CO and H2	06/03/1980
4204979	Method of processing activated carbon A method for processing of sewage sludge from wastewater treating plants and the initial activation and regeneration of activated carbon granules or powder used for adsorption in wastewater treatment and the like. The method is carried out by supporting t...	05/27/1980
4107084	Process for activating carbonaceous material There is disclosed an improved process for activating carbon in a fluidized bed system which includes continuous activation at a temperature between 1,000° F. and 2,200° F. using a specific composition of fluidizing gases. The thermal energy required to...	08/15/1978
4102812	Production of carbon from coal granules prepared in a fluid energy mill Granular active carbon having satisfactory adsorbency and hardness characteristics and having a high proportion of its porosity in the below 2000 A range is produced from granules prepared from coal fluid energy milled until not more than 1% of the partic...	07/25/1978
3976597	Fluidized bed process for making activated carbon including heating by conduction through the distributor plate There is disclosed an improved process for activating carbon in a fluidized bed which includes continuous activation at a temperature between 1,000°F. and 2,200°F., preferably 1,700°F. to 1,950°F. in the bed. The activation step includes heat transfer...	08/24/1976
3962128	Coal dust fuel distribution system and method of manufacturing activated carbon Coal dust comprising coal particles of 40 mesh or less may be utilized as a fuel for stable combustion by aspirating the dust in fluidized suspension for delivery to a turbulent reservoir and aspirating the suspension from the reservoir for delivery to a ...	06/08/1976

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Class 502/435 - Exposure to hot flue or exhaust gas