Class 95/903 - Carbon

Subclass of Class 95 - Gas separation: processes
Definition: Solid sorbent as provided for use in this class in which
No. of patents: 33
Last issue date: 10/07/2008

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Number	Title	Issue Date
7431900	Hydrogen peroxide vapor system with replaceable desiccant cartridge A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assemb...	10/07/2008
7419601	Nanomesh article and method of using the same for purifying fluids Disclosed herein are articles for removing contaminants from a fluid, such as a liquid or gas, the article comprising carbon nanotubes, which comprise at least one molecule or cluster attached thereto or located therein, wherein the carbon nanotubes are present in t...	09/02/2008
7393381	Removing siloxanes from a gas stream using a mineral based adsorption media A plurality of different layers of filter media are used to remove siloxanes from a gas stream. Based on an analysis of the specific gas stream to be filtered, a filter media having an average pore size enabling the preferential removal of a specific class of contam...	07/01/2008
7306647	Mixed matrix membrane with mesoporous particles and methods for making and using the same A mixed matrix membrane for separating gas components from a mixture of gas components is disclosed. The membrane comprises a continuous phase polymer with inorganic porous particles, preferably molecular sieves, interspersed in the polymer. The polymer has a CO	12/11/2007
7264648	Removing siloxanes from a gas using a segmented filtration system customized to the gas composition A plurality of different layers of filter media are used to remove siloxanes from a gas stream. Based on an analysis of the specific gas stream to be filtered, a filter media having an average pore size enabling the preferential removal of a specific class of contam...	09/04/2007
7250074	Process for separating nitrogen from methane using microchannel process technology The disclosed invention relates to a process for separating methane or nitrogen from a fluid mixture comprising methane and nitrogen, the process comprising: (A) flowing the fluid mixture into a microchannel separator, the microchannel separator comprising a plurali...	07/31/2007
7060653	Method of producing gas occluding material The gas storage method comprises a step of keeping a gas to be stored and an adsorbent in a vessel at a low temperature below the liquefaction temperature of the gas to be stored so that the gas to be stored is adsorbed onto the adsorbent in a liquefied state, a ste...	06/13/2006
6916358	Adsorbent for separating nitrogen from mixed gas of oxygen and nitrogen An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen is MSC wherein an oxygen and nitrogen separation ratio α and a ratio (t95/t50) of a time t50 required for adsorbing 50% of the oxygen equilibrium adsorptio...	07/12/2005
6767386	Method and apparatus for producing nitrogen CMS adsorbents having suitable indexes are used to improve greatly the performance of nitrogen-producing apparatuses where nitrogen is obtained from the air with a PSA method, so as to improve the efficiency of nitrogen production. A nitrogen PSA apparatus is formed...	07/27/2004
6764755	Channelized sorbent media, and methods of making same A channelized sorbent material comprises porous sorbent particles characterized by an average pore diameter. Each sorbent particle has at least one interior channel of an average transverse dimension (i.e. transverse diameter) that is at least ten times larger than ...	07/20/2004
6592653	Fluid storage and delivery system utilizing low heels carbon sorbent medium A fluid storage and dispensing system including a vessel containing a low heel carbon sorbent having fluid adsorbed thereon, with the system arranged to effect desorption of the fluid from the sorbent for dispensing of fluid on demand. The low heel carbon...	07/15/2003
6290753	Hydrogen storage in carbon material In a method for storing hydrogen in a carbon material containing microstructures in the form of cones with cone angles being multiples of 60°, the carbon material is introduced in a reaction vessel which is evacuated while the carbon material is kept at ...	09/18/2001
6113673	Gas storage using fullerene based adsorbents This invention is directed to the synthesis of high bulk density high gas absorption capacity adsorbents for gas storage applications. Specifically, this invention is concerned with novel gas absorbents with high gravimetric and volumetric gas adsorption ...	09/05/2000
5827355	Carbon fiber composite molecular sieve electrically regenerable air filter media An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply airstream, the CFCMS filter sorbs gaseous air pollutan...	10/27/1998
5518527	Method for recovering ethylene from vent gas from ethylene oxide plant vent gas The present invention provides a method for economical recovery of ethylene from ethylene-containing vent gas from a plant for production of ethylene oxide, wherein ethylene is separated from saturated hydrocarbons such as methane, ethane and oxygen and t...	05/21/1996
5447557	Oxygen selective adsorbents An oxygen selective adsorbent and a method for making an oxygen selective adsorbent wherein a porous carbon substrate such as a carbon molecular sieve, activated carbon, carbon black, coal, or petroleum coke, is impregnated with a solution of an acidic sp...	09/05/1995
5429664	Pressure swing absorption with recycle of void space gas The present invention is a pressure swing adsorption process for separating a more strongly adsorbed gas component from a less strongly adsorbed gas component in a feed gas mixture at higher recoveries and productivity and less capital cost by the use of ...	07/04/1995
5417742	Removal of perfluorocarbons from gas streams Perfluorocarbons are recovered from gas streams by subjecting the gas stream to an adsorption process in a bed of one or more energetically homogeneous adsorbents such as silicon-rich adsorbents of the FAU structure, silicon-rich adsorbents of the BEA str...	05/23/1995
5411577	Method for separating gases using a particulate composite material with carbon matrix A method for separating gases wherein the gases to be separated are contacted with a particulate composite material with a carbon matrix to selectively adsorb gases. The material contains a microporous phase which is essentially carbon with a microporous ...	05/02/1995
5261948	Carbon molecular sieve for the kinetic separation of acid gases and fluorocarbons A method for the preparation of a carbon molecular sieve capable of separating acid gases and fluorocarbons of the formula Ca Hb Xc Fd, wherein a is from 1 to about 6, b is from 0 to about 13, c is from 0 to abo...	11/16/1993
5240474	Air separation by pressure swing adsorption with a high capacity carbon molecular sieve Nitrogen is produced by separating air in a pressure swing adsorption process using a high capacity kinetically O2 selective material as the adsorbent. An example of such an adsorbent is a carbon molecular sieve made from coconut shell char. Su...	08/31/1993
5238888	Carbon molecular sieve Provided are carbon molecular sieves produced by treating carbonacious materials with plasma. One of their most important uses is adsorbent for pressure swing adsorption processes, which are widely used for the separation of gases on industrial scales. Th...	08/24/1993
5135548	Oxygen selective desiccants Composite oxygen selective desiccants comprising a carbon molecular sieve which is kinetically selective for the adsorption of oxygen over nitrogen and an agent for the sorption of water such as lithium chloride, lithium bromide, calcium chloride, magnesi...	08/04/1992
5071450	Modified carbon molecular sieve adsorbents A process is provided for making a modified carbon molecular sieve which is suitable for separating gases having different adsorption rates on the sieve. The process involves modifying a starting sieve support having a majority of micropores with an effec...	12/10/1991
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
4902312	Carbon molecular sieves for purification of chlorofluorocarbons Chlorofluorocarbons are purified by removing hydrofluoric and hydrochloric acids with a carbon molecular sieve having an average pore size of about 3.5 Angstroms with no more than about 5% of the pores having a size less than 3.2 Angstroms and no more tha...	02/20/1990
4820318	Removal of organic compounds from gas streams using carbon molecular sieves Volatile organic compounds such as ketones and fluorocarbons are removed from vapor streams by contacting the vapor stream with a bed of an adsorbent comprising a binderless carbon molecular sieve. The carbon molecular sieves are characterized by their me...	04/11/1989
4810266	Carbon dioxide removal using aminated carbon molecular sieves Acid gases such as carbon dioxide are removed from air or other gases using a unique carbon-based material. The material is a carbon molecular sieve prepared from oxygen-free precursors carbonized in the absence of oxygen. The pores of the material are th...	03/07/1989
4790859	Method of separating gaseous mixture A method of separating at least a first gas from a gaseous mixture, in which a gaseous mixture containing a first and a second gas having different chemical compositions in an amount of at least 50% by volume based on the entire mixture is contacted with ...	12/13/1988
4629476	Carbon molecular sieves and a process for their preparation and use A process for separating mixtures containing components of at least two different molecular diameters, molecular weights or molecular shapes by passage of such mixture through a carbonaceous molecular sieve substrate which is selected from carbon sieves, ...	12/16/1986
4581044	Process for separating carbonic acid gas from methane-rich gas A process for separating and recovering carbonic acid gas from a methane-rich gas containing the same by a pressure swing means comprising contacting the methane-rich gas with an adsorbent for carbonic acid gas at a high pressure to obtain a refined metha...	04/08/1986
4261709	Agent for the removal of low molecular weight organic gases A carbonaceous molecular sieve having micropores with diameters in the range of 4 to 6 Angstrom units and bromine as adsorbed on said carbonaceous molecular sieve is able to remove selectively low molecular weight organic gases such as ethylene, acetylene...	04/14/1981
3960522	Carbon-containing molecular sieves Process for preparing carbon-containing molecular sieves adapted for separating small molecular gases, in particular oxygen, from nitrogen, which comprises treating coke having a content of volatile components of up to 5% at 600° - 900° C with a hydroca...	06/01/1976

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Class 95/903 - Carbon