Fluidized Bed Having Specified Parameter Patents (Class 502/431)
  • Patent number: 9764297
    Abstract: The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 19, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 9724703
    Abstract: Solid materials may be processed using shockwaves produced in a supersonic gaseous vortex. A high-velocity stream of gas may be introduced into a reactor. The reactor may have a chamber, a solid material inlet, a gas inlet, and an outlet. The high-velocity stream of gas may be introduced into the chamber of the reactor through the gas inlet. The high-velocity stream of gas may effectuate a supersonic gaseous vortex within the chamber. The reactor may be configured to facilitate chemical reactions and/or comminution of solid feed material using tensive forces of shockwaves created in the supersonic gaseous vortex within the chamber. Solid material may be fed into the chamber through the solid material inlet. The solid material may be processed within the chamber by nonabrasive mechanisms facilitated by the shockwaves within the chamber. The processed material that is communicated through the outlet of the reactor may be collected.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: August 8, 2017
    Assignee: LLT International (Ireland) Ltd.
    Inventors: Peter Lansell, William Keating, David Lowe
  • Patent number: 8575058
    Abstract: An activated carbon catalyst is described which is sufficiently active in the presence of catalytic poisons in crude gas to convert nitrogen oxides to nitrogen in the presence of ammonia.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: November 5, 2013
    Assignee: CarboTech AC GmbH
    Inventors: Klaus-Dirk Henning, Wolfgang Bongartz
  • Patent number: 7997281
    Abstract: Smoking article components, cigarettes, methods for making cigarettes and methods for smoking cigarettes are provided that use nitrided transition metal oxide nanoscale particles and/or nitrided transition metal oxide clusters capable of catalyzing and/or oxidizing carbon monoxide to carbon dioxide and/or adsorbing carbon monoxide and catalyzing and/or reducing nitric oxide to nitrogen and/or adsorbing nitric oxide. Cut filler compositions, cigarette paper and cigarette filter material can comprise nitrided transition metal oxide nanoscale particles and/or nitrided transition metal oxide clusters.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: August 16, 2011
    Assignee: Philip Morris USA Inc.
    Inventors: Budda V. Reddy, Firooz Rasouli
  • Patent number: 7771668
    Abstract: A vertical multi-stage fluidized bed apparatus including a plurality of horizontal perforated partitioning plates disposed therein so as to partition the apparatus is provided, wherein an upper horizontal perforated partitioning plate is set to have a larger aperture rate than a lower horizontal perforated partitioning plate. From a lower part of the apparatus, feed carbon and fluidizing gas are continuously supplied so as to provide a gas superficial velocity in the fluidized bed which is 2-4 times a minimum fluidizing velocity of the feed carbon, thereby subjecting the feed carbon to fluidization with the fluidizing gas and activation with steam at 750-950° C. simultaneously to discharge activated carbon continuously from an upper part of the apparatus. As a result, activated carbon of even a high degree of activation is produced at a high yield comparable to that obtained in a batchwise operation.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: August 10, 2010
    Assignee: Kureha Corporation
    Inventors: Hiroaki Ohashi, Yasuyoshi Yamanobe
  • Patent number: 7677254
    Abstract: Smoking article components, cigarettes, methods for making cigarettes and methods for smoking cigarettes are provided that use nitrided transition metal oxide nanoscale particles and/or nitrided transition metal oxide clusters capable of catalyzing and/or oxidizing carbon monoxide to carbon dioxide and/or adsorbing carbon monoxide and catalyzing and/or reducing nitric oxide to nitrogen and/or adsorbing nitric oxide. Cut filler compositions, cigarette paper and cigarette filter material can comprise nitrided transition metal oxide nanoscale particles and/or nitrided transition metal oxide clusters.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: March 16, 2010
    Assignee: Philip Morris USA Inc.
    Inventors: Budda V. Reddy, Firooz Rasouli
  • Patent number: 6916891
    Abstract: Microspheroidal particles, suitable as fluidized bed catalyst supports, are prepared by incorporating a portion of small, preferably recycled, particles into a slurry of inorganic oxide sol and inorganic particles which is spray dried to form microspheroidal particles.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: July 12, 2005
    Assignee: The Standard Oil Company
    Inventors: George F. Salem, Robert J. Zagata
  • Patent number: 6558454
    Abstract: 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 activated material in-situ. The raw carbonaceous starting material can be either a solid-phase, liquid phase or vapor-phase material. The activated material then adsorbs the vapor phase contaminants, and the activation material containing the vapor phase contaminants is removed from the gas stream using a particulate collection device. The process is particularly suited for the removal of vapor phase air toxics, such as mercury, from the flue gas of a combustion process. An apparatus for the removal of vapor phase contaminants from a gas stream is also described.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: May 6, 2003
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Ramsay Chang, Massoud Rostam-Abadi, Sharon Sjostrom
  • Patent number: 6451094
    Abstract: 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 activated material in-situ. The activated material then adsorbs the vapor phase contaminants, and the activation material containing the vapor phase contaminants is removed from the gas stream using a particulate collection device. The process is particularly suited for the removal of vapor phase air toxics, such as mercury, from the flue gas of a combustion process. An apparatus for the removal of vapor phase contaminants from a gas stream is also described.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: September 17, 2002
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Ramsay Chang, Massoud Rostam-Abadi, Shiaoguo Chen
  • Patent number: 5792720
    Abstract: 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 active carbon is filled into the fluidizing type adsorbing tower and to above a sieve plate. A TEDA reagent is injected into a TEDA vapor generating vessel. A heated air is supplied into the TEDA vapor generating vessel so as to generate a TEDA vapor mixed with the heated air. The heated air mixed with the TEDA vapor is supplied into the lower portion of the fluidized bed type adsorbing tower so as to make the base active carbon fluidized. Thus the TEDA vapor is impregnated into the active carbon within the fluidized carbon bed.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: August 11, 1998
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Seung-Gy Ro, Hoo-Kun Lee
  • Patent number: 5498589
    Abstract: 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%<20.mu.m;(b) oxidizing the finely milled hard coal with air in a fluidized bed;(c) adding water and coal tar pitch as a binder and molding the finely milled hard coal into shape;(d) carbonizing the finely milled hard coal molded into shape in a rotary kiln at a temperature of 500 .degree.to 850.degree. C., with a dwelling time of 55 to 65 minutes, in order to obtain a carbonization product with a bulk density of 530 to 560 g/l;(e) activating the carbonization product with steam at to 900.degree. C. for 165 to 195 minutes to obtain a sintered carbonaceous product having a bulk density of 590 to 650 g/l; and(f) treating the sintered carbonaceous product at 750 to 850.degree. C. with carbon-splitting hydrocarbons to obtain said carbon molecular sieve.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: March 12, 1996
    Assignee: Bergwerksverband GmbH
    Inventors: Hans-Jurgen Schroter, Heinrich Heimbach, Klaus-Dirk Henning, Karl Knoblauch, Alfons S.-S. Berndt, Ferdinand Tarnow
  • Patent number: 5236688
    Abstract: Disclosed herein are a method for batchwisely calcining and activating infusibilized spherical pitch beads in an upper stage and a lower stage fluidized beds formed on respective perforated plates, by calcining the pitch beads in the upper stage at 600-800.degree. C. with a heated exhaust gas from a space for the lower stage, discharging activated carbon beads of the previous batch from the space for the lower stage, stopping the fluidization of the upper stage by guiding the exhaust gas from the space for the lower stage to the space for the upper stage through a bypass line so that the calcined beads can fall down to the space for the lower stage through the holes of the perforated plate of the upper stage, and activating the falling calcined beads at 800-1200.degree. C. while forming the lower stage fluidized bed with a heated calcining and activating gas, and a furnace used for the above method.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: August 17, 1993
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kunio Watanabe, Takao Ishihara, Yasuo Sakaguchi
  • Patent number: 5187141
    Abstract: 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 vaporizes. The dried coal is then heated to an elevated temperature in a substantially non-oxidizing atmosphere at substantially atmospheric pressure sufficient to volatilize and remove the contained volatile matter and produce a char thereof and the char thereafter subjected to hydrogenation at an elevated temperature and pressure for a time sufficient to form activated carbon characterized by a BET surface area of at least about 200 m.sup.2 /g and an iodine number of at least about 400.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: February 16, 1993
    Inventors: Mahesh C. Jha, Robert L. McCormick
  • Patent number: 4978649
    Abstract: The present invention relates to physical chemistry.The material is made as a three-dimensional matrix with a pore volume of from 0.2 to 1.7 cm.sup.3 /g. The matrix is formed by bent layers of carbon of 100-10,000 .ANG. thickness and 100-10000 .ANG. radius of curvature. The true density of the material according to the present invention is 1.80-2.10 g/cm.sup.3, its X-ray density is 2.112-2.236 g/cm.sup.3, the pore size distribution has its maximum within the range of 200-2,000 .ANG..The present invention can be useful in, for example, in the production of catalysts.
    Type: Grant
    Filed: April 19, 1989
    Date of Patent: December 18, 1990
    Inventors: Vitaly F. Surovikin, Georgy V. Plaxin, Vladimir A. Semikolenov, Vladimir A. Likholobov, Ilona J. Tiunova
  • Patent number: 4880765
    Abstract: 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 thereby narrow the existing pores.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: November 14, 1989
    Assignee: Bergwerksverband GmbH
    Inventors: Karl Knoblauch, Ferdinand Tarnow, Heinrich Heimbach
  • Patent number: 4754055
    Abstract: The present invention describes allenic prostacyclin derivatives of the formula: ##STR1## wherein: n is 0, 1, or 2;R.sup.1 is hydrogen, lower alkyl, or a pharmaceutically acceptable cation;R.sup.2 is hydrogen, lower alkyl, cycloalkyl, heteroaryl, halogen, phenyl, alkylthio, phenylthio, alkylsulfinyl, phenylsulfinyl or trifluoromethyl;R.sup.3 is lower alkyl, cycloalkyl, phenyl, benzyl, cycloheteroalkyl, lower alkyl having one to eight carbons substituted with one or more fluorines or containing 1 or 2 unsaturated bonds; andcarbon 15 may be in the R or the S configuration, or a mixture of R and S.These compounds are useful for the treatment of platelet dysfunction, atherosclerosis, allergic disorders, gastric ulcers, hypertension and tumor cell metastasis. Also disclosed is the process for preparing them and the appropriate intermediates.
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: June 28, 1988
    Assignee: G. D. Searle & Co.
    Inventors: Stevan W. Djuric, Masateru Miyano
  • Patent number: 4615993
    Abstract: Untreated coal is activated with steam at temperatures of 600.degree. to 950.degree. 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 untreated coal or in the first part of the vibrating fluid bed trough. During the activation, secondary air can be passed in through a sparge pipe which is arranged parallel to the vibrating fluid bed trough. It is possible to carry out the heating exclusively with the supply of secondary air.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: October 7, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventors: Rudiger Schirrmacher, Gisbert Semmerau