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    METHOD AND DEVICE FOR CATALYTIC REACTION
    1.
    发明专利
    METHOD AND DEVICE FOR CATALYTIC REACTION 失效

    公开(公告)号：JPH05131118A

    公开(公告)日：1993-05-28

    申请号：JP9620192

    申请日：1992-04-16

    Applicant: CORNING INC

    Inventor： LACHMAN IRWIN M ,  PATIL MALLANAGOUDA D ,  WILLIAMS JIMMIE L

    IPC: B01D53/94 ,  B01J23/56 ,  B01J23/63 ,  B01J29/06 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  F01N13/04

    Abstract: PURPOSE: To carry out a catalytic conversion of an exhaust gas into an innocuous substance without using rhodium catalyst and without supplying ammonia from the outside. CONSTITUTION: An exhaust gas introduced via a first conduit 12 is passed through a first multicellular unit 16. A first catalyst disposed in the first unit converts at least a portion of NOX into ammonia and a modified mixture is produced. The modified mixture introduced via a second conduit 18 into a second multicellular unit 24. Ammonia and the residual NOX are converted into an innocuous substance by a catalytic reaction with a second catalyst disposed in the second unit. The innocuous substance converted are exhausted from an exhausting conduit 26 to the surrounding atmosphere.

    APPARATUS AND METHOD FOR MODIFYING GASEOUS MIXTURES
    3.
    发明专利
    APPARATUS AND METHOD FOR MODIFYING GASEOUS MIXTURES 未知

    公开(公告)号：CA2096197A1

    公开(公告)日：1994-02-06

    申请号：CA2096197

    申请日：1993-05-13

    Applicant: CORNING INC

    Inventor： LACHMAN IRWIN M ,  PATIL MALLANAGOUDA D

    IPC: B01D53/04 ,  B01D53/86 ,  B01D53/94 ,  B01J20/02 ,  B01J29/83 ,  B01J29/85 ,  B01J29/89 ,  B01J35/04 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  B01J8/06 ,  B01D53/36

    Abstract: An apparatus, system and method are disclosed for modifying a gaseous mixture. The apparatus comprises a unitary body having an inlet end, an outlet end, and a multiplicity of cells extending from inlet end to outlet end, the cells being separated from one another by porous walls, and filler material comprising electrically nonconducting active powder material, loaded into at least part of the volume of the cells, with some of the cells being unloaded and open, wherein a gaseous mixture enters the body at the inlet end through the open cells, and at least some of the gaseous mixture passes through the porous walls and is compositionally modified by the active material, and thereafter the resultant modified mixture passes through the open cells and exits the body at the outlet end. The apparatus can be used in conjunction with other apparatuses which are catalyzed to form a gas modifying system. The apparatus and system are especially suited for conversion of hydrocarbons, NOx, and CO as from auto exhaust, and for Denox applications.

    EXHAUST GAS CONVERSION SYSTEM USING ZEOLITE POSITIONED CLOSE TO EXHAUST GAS SOURCE
    6.
    发明专利
    EXHAUST GAS CONVERSION SYSTEM USING ZEOLITE POSITIONED CLOSE TO EXHAUST GAS SOURCE 未知

    公开(公告)号：CA2100935A1

    公开(公告)日：1994-04-21

    申请号：CA2100935

    申请日：1993-07-20

    Applicant: CORNING INC

    Inventor： HERTL WILLIAM ,  LACHMAN IRWIN M

    IPC: F01N3/20 ,  B01D53/04 ,  B01D53/94 ,  B01J29/40 ,  F01N3/08 ,  F01N13/02 ,  F02M25/07 ,  B01D53/36

    Abstract: An improvement in a system and method is disclosed for converting exhaust gas from an exhaust gas generating device, to innocuous products in which exhaust gas is contacted with a catalyst system comprising a NOx, CO, and hydrocarbon conversion catalyst. The improvement comprises providing a zeolite upstream of the conversion catalyst and positioned close enough to the device to allow the temperature of the zeolite to reach at least about 100.degree.C within a period of time of no longer than about 100 seconds after start-up of the device, and contacting the exhaust gas with the zeolite to cause adsorption of hydrocarbons during that period. The zeolite has a SiO, to Al2O, mole ratio of no greater than about 250 to 1, and pore openings of about 3.8 to about 6.0.ANG. in diameter.

    DUAL CONVERTER ENGINE EXHAUST SYSTEM FOR REDUCING HYDROCARBON EMISSIONS
    7.
    发明专利
    DUAL CONVERTER ENGINE EXHAUST SYSTEM FOR REDUCING HYDROCARBON EMISSIONS 未知

    公开(公告)号：CA2043191A1

    公开(公告)日：1991-12-09

    申请号：CA2043191

    申请日：1991-05-24

    Applicant: CORNING INC

    Inventor： LACHMAN IRWIN M ,  PATIL MALLANAGOUDA D ,  SOCHA LOUIS S JR

    IPC: B01J35/04 ,  B01D53/04 ,  B01D53/94 ,  B01J29/035 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N13/02 ,  F02D21/08 ,  F01N3/28

    Abstract: DUAL CONVERTER ENGINE EXHAUST SYSTEM FOR REDUCING HYDROCARBON EMISSIONS of the Invention An engine exhaust system and method of controlling hydrocarbon emissions are provided. The system and method are based on the use of two catalytic converter chambers, a first chamber containing a catalytic material and a second chamber containing catalyst as well as molecular sieves capable of adsorbing hydrocarbons during engine start-up and of having hydrocarbons desorbed therefrom when the catalysts reach an effective converting temperature. According to the invention, engine exhaust is selectively conveyed to each of the two converters in a manner such that initially produced hydrocarbon is withheld in the system by the molecular sieves in order to be recycled through the converters and brought into contact with the catalyst after an effective converting temperature has been attained.

    9.
    发明专利
    未知

    公开(公告)号：DE69217108T2

    公开(公告)日：1997-07-10

    申请号：DE69217108

    申请日：1992-04-15

    Applicant: CORNING INC

    Inventor： LACHMAN IRWIN M ,  PATIL MALLANAGOUDA D ,  SWAROOP SRINIVAS H ,  WILLIAMS JIMMIE L

    IPC: B01D53/94 ,  B01J23/56 ,  B01J23/63 ,  B01J29/06 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  F01N13/04 ,  B01D53/56 ,  B01D53/88

    Abstract: An apparatus and method for converting exhaust gases to innocuous products is disclosed. Exhaust gas is conveyed by a first conduit to, and passed through a first multicellular unit in which a portion of the cells are catalyzed with a first catalyst for reacting at least a portion of the NOx to ammonia, and thereafter the resulting modified mixture only is conveyed by a second conduit from the first unit and to a second multicellular unit to react the ammonia and the remaining NOx to produce innocuous products. The second conduit is connected only to the first and second units. The passage of the exhaust gas through the units results in conversion of NOx, CO, and hydrocarbons to innocuous products.

    10.
    发明专利
    未知

    公开(公告)号：DE69217108D1

    公开(公告)日：1997-03-13

    申请号：DE69217108

    申请日：1992-04-15

    Applicant: CORNING INC

    Inventor： LACHMAN IRWIN M ,  PATIL MALLANAGOUDA D ,  SWAROOP SRINIVAS H ,  WILLIAMS JIMMIE L

    IPC: B01D53/94 ,  B01J23/56 ,  B01J23/63 ,  B01J29/06 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  F01N13/04 ,  B01D53/56 ,  B01D53/88

    Abstract: An apparatus and method for converting exhaust gases to innocuous products is disclosed. Exhaust gas is conveyed by a first conduit to, and passed through a first multicellular unit in which a portion of the cells are catalyzed with a first catalyst for reacting at least a portion of the NOx to ammonia, and thereafter the resulting modified mixture only is conveyed by a second conduit from the first unit and to a second multicellular unit to react the ammonia and the remaining NOx to produce innocuous products. The second conduit is connected only to the first and second units. The passage of the exhaust gas through the units results in conversion of NOx, CO, and hydrocarbons to innocuous products.

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