Class 502/430 - Treating with gas

Subclass of Class 502 - Catalyst, solid sorbent, or support therefor: product or process of making
Definition: Process in which the material is contacted with a specified
No. of patents: 31
Last issue date: 11/27/2007

Number	Title	Issue Date
7300586	pH stable activated carbon An activated carbon composition is disclosed, which includes an activated carbon and a carboxylic acid containing compound. The activated carbon composition is prepared by immersing an activated carbon in an aqueous solution of a carboxylic acid containing compound....	11/27/2007
6946077	pH stable activated carbon An activated carbon composition is disclosed, which includes an activated carbon and a carboxylic acid containing compound. The activated carbon composition is prepared by immersing an activated carbon in an aqueous solution of a carboxylic acid containing compound....	09/20/2005
6902589	Method for producing shaped, activated charcoal The invention relates to a method for producing shaped, activated charcoal. According to the method, after being ground, carbon-bearing material, or a mixture of several carbon-bearing materials are rendered homogenous with a binding agent which contains water, or a...	06/07/2005
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
6576212	Process for the production of carbonized material A process of producing a carbonized material, which includes a step of treating the biomass with a microwave for a period of time sufficient to carbonize an inner region thereof but insufficient to carbonize an outer region thereof, thereby obtaining a pa...	06/10/2003
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
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
6309446	Activated carbon for adsorptive storage of gaseous compound Activated carbon having a specific surface area of 700 to 1,500 m2 /g, a pore volume of pores having a pore diameter of 10 nm or less of 0.20 to 0.8 cc/g, a proportion of a pore volume of pores having a pore diameter of 0.6 to 0.8 nm to a pore ...	10/30/2001
6030922	Synthesizing carbon from sludge The synthesis of carbon, particularly in an activated form, from sludge materials such as composed of biosolids and the like is described wherein the treated material is subjected to processing including chemical activation, light and humidity treatment, ...	02/29/2000
5994261	Method of producing activated carbon fiber A pitch-type fiber convertible to an activated carbon fiber is infusiblized with an infusiblizing gas and the infusiblized fiber is activated with an activating gas, such as steam, to produce an activated carbon fiber. The waste gas from the infusiblizing...	11/30/1999
5990041	Mesoporous activated carbon filaments This invention relates to a mesoporous carbon material in the form of filaments having a high surface area. A process is also provided to produce mesoporous carbon material of high surface area. The process comprises drying a carbon material, surface oxid...	11/23/1999
5972834	Carbon adsorbent, manufacturing method therefor, gas separation method and device therefor It is possible to increase the amount of nitrogen generated per unit of adsorbent, raise the nitrogen yield, and reduce the manufacturing cost for nitrogen by using, as an adsorbent for the separation of nitrogen, molecular sieving carbon obtained by succ...	10/26/1999
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
5849966	Catalyst and process for the isomerization of olefins in the presence of reactive impurities A process and catalyst for isomerizing olefins are disclosed. The process and catalyst are particularly useful for isomerizing alkenyl bridged ring compounds to the corresponding alkyladiene bridged ring compounds. In one embodiment, the isomerization cat...	12/15/1998
5792720	Method and apparatus for manufacturing TEDA-impregnated active carbon in fluidized bed type absorbing tower by generating TEDA vapor by means of hot air A method and an apparatus using a fluidized bed type adsorbing tower for manufacturing a TEDA-impregnated active carbon which is used for removing toxic materials from a fluid. A base active carbon is dried to remove the water component, and the dried act...	08/11/1998
5714433	Activated carbon treated by carbon dioxide for the stabilization of treated water pH Treatment of a wet activated carbon with carbon dioxide or with carbon dioxide followed by air results in a carbon having a reduced contact pH. The activated carbon is characterized by a modified contact pH less than about 9.0 and typically between about ...	02/03/1998
5525196	Process for producing formed activated coke An improved process for producing a formed activated coke for simultaneous desulfurization and denitrification, which includes passing a ground coal through a tubular or cylindrical carbonization retort by using a hot gas stream, to subject the coal to pr...	06/11/1996
5498589	Process for the production of carbon molecular sieves A process is disclosed for preparing a carbon molecular sieve used for the separation of oxygen from nitrogen, which comprises the steps of: (a) milling hard coal to a grain size of 95%	03/12/1996
5482915	Transition metal salt impregnated carbon The present invention is a synthesis, product and process for activated carbon and preferably carbon molecular sieve separation of air to produce a nitrogen product wherein a carbon is partially pyrolyzed, impregnated with a transition metal salt and furt...	01/09/1996
5461023	Storage of natural gas Natural gas is stored in a closed vessel under a pressure of about 1400 to 4500 kPa using a carbon molecular sieve adsorbent having at least 80% of its particle pore volume as micropores having diameters greater than 0.55 nm and less than 0.65 nm, particu...	10/24/1995
5447624	Packings for liquid chromatography and process for producing the same A microspherical packing for liquid chromatography, which comprises a porous silicon carbide having numerous through-pores, and a process for producing said microspherical packing....	09/05/1995
5446005	Pitch-based activated carbon fiber There is disclosed an optically isotropic pitch-based activated carbon fiber which has a proportion of the number of ultramicropores with a pore diameter of 0.5 nm or smaller to the total number of pores with a pore diameter of 4 nm or smaller being at le...	08/29/1995
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
5187141	Process for the manufacture of activated carbon from coal by mild gasification and hydrogenation A process is provided for forming activated carbon from coal in the particulate state. The coal is first dried at a temperature sufficiently high to effect removal of moisture therefrom but below the temperature at which contained volatile matter vaporize...	02/16/1993
5064801	Process for manufacturing a carbon catalyst A process for manufacturing a carbon catalyst for use in NOx reduction with ammonia catalyzed by active carbons and active cokes is described. The new carbon catalyst exhibits improved catalytic activity and hence a higher yield in NO. In the m...	11/12/1991
4957897	Carbonaceous adsorbents from pyrolyzed polysulfonated polymers Carbonaceous adsorbent particles having multimodal pore size, including micropores and macropores, with improved adsorptive and separative properties, are prepared by partial pyrolysis of polysulfonated macroporous precursor resins, said resins being in t...	09/18/1990
4933314	Molecular sieving carbon A molecular sieving carbon characterized by (A) having a structure in which a number of spherical carbonaceous particles having a particle diameter of 0.8 to 120 micrometers overlap and coalesce three-dimensionally at random, (B) in which continuous pathw...	06/12/1990
4921831	Method for preparing active carbons A method for preparing active carbon, which comprises: (a) a pulverization step of pulverizing a non-caking coal to pulverized particles having an average particle size of not larger than 10 μm; (b) a granulation step of granulating the resulting pulverized partic...	05/01/1990
4880765	Process for producing carbon molecular sieves Process for producing carbon molecular sieves for separating oxygen and nitrogen by treating a carbonaceous product with inert gas and steam in a vibrating oven and further treating said product with benzene at a high temperature in a vibrating oven to th...	11/14/1989
4318824	Manufacture of porous carbon A porous carbon is prepared by first carbonizing a solid fraction (obtained from pitch and/or coal by solvent extraction and preferably being one soluble in quinoline and insoluble in methanol, n-heptane and toluene) to produce a first porous carbon, abso...	03/09/1982
4268417	Method of making activated carbon Activated carbon is made by forming a slurry of carbonaceous and non-carbonaceous fine particles, preferably finely divided non-caking coal, in a suspension liquid, preferably water, comprised of at least 60 percent suspension liquid by weight. Preferably...	05/19/1981

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Class 502/430 - Treating with gas