公开(公告)号：EP0968046A1

公开(公告)日：2000-01-05

申请号：EP98911265.1

申请日：1998-03-17

申请人： Gemeente Amsterdam, Gemeentelijke Dienst Afvalverwerking

发明人： DE VRIES, Cornelis

IPC分类号： B01D53/70 ,  B01D53/72

CPC分类号： B01D53/72 ,  B01D53/70

摘要： A process for the removal of contaminants from a gas, using a gas cleaning agent, which contamination is selected from the group comprising aromatic hydrocarbons and (poly)halogenated aromatic hydrocarbons. For the removal of the contaminant a detergent is added as gas cleaning agent. The detergent is selected from a group formed by an anionic detergent, non-ionic detergent and a mixture thereof.

公开(公告)号：EP0710150A4

公开(公告)日：1997-12-29

申请号：EP94923491

申请日：1994-07-15

申请人： THERMATRIX INC

发明人： STILGER JOHN D ,  MARTIN RICHARD J ,  HOLST MARK R ,  YEE SAMSON C

IPC分类号： A62D3/00 ,  B01D53/72 ,  B01D53/86 ,  B01J8/00 ,  B01J8/02 ,  B01J8/04 ,  F23C13/00 ,  F23C99/00 ,  F23G5/16 ,  F23G5/50 ,  F23G7/06

CPC分类号： F23G7/07 ,  B01D53/72 ,  B01D53/8668 ,  B01J8/001 ,  B01J8/0453 ,  F23C13/00 ,  F23C99/006 ,  F23G5/16 ,  F23G5/50 ,  F23G7/06 ,  F23G7/061 ,  F23G2202/103 ,  F23G2202/105 ,  F23G2202/50 ,  F23G2207/101 ,  F23G2207/40

摘要： Methods and apparatus are provided for destruction of volatile organic compounds ('VOC's') from process fumes having variable amounts of such VOC's wherein a nominal amount of the fumes are passed through an oxidizer (24) for destruction of the VOC's and the hot products from the oxidizer (24) are fed to an afterburner (30) that is principally made up of a matrix bed of heat resistant material. The heat from the oxidized gases heats the matrix bed. Fume flows exceeding the nominal flow are bypassed directly to an inlet port of the afterburner where they are passed through the matrix bed of the afterburner, which has been heated by the oxidized gases from the oxidizer (24) and are combusted into additional gaseous products in a combustion wave. The system allows for utilisation of the heat produced from the oxidation of the nominal flow for destructing fume flows that exceed the nominal flow.

公开(公告)号：EP0744990B1

公开(公告)日：1997-10-29

申请号：EP95908216.5

申请日：1995-01-27

申请人： OTTO LUFT- und KLIMATECHNIK GmbH & Co. KG

发明人： FATTINGER, Volker ,  HABERLAND, Hans

IPC分类号： B01D53/86 ,  B01D53/72 ,  A61L2/20

CPC分类号： C07D301/32 ,  C07C29/106 ,  C12P1/00 ,  C12R1/00 ,  Y02P20/52 ,  C07C31/202

摘要： Ethylene oxide is removed from exhaust gases of sterilisation plants and/or from outgoing air from storehouses for sterilised products. A catalyst-containing adsorbent (for example active coal or silica gel) binds the ethylene oxide, forming glycol. Two or more adsorptive filters (4a, 4b) allow the outgoing air to be cleaned without interruption, as the filters are alternatively switched off and regenerated. Regeneration is carried out by extracting the adsorbent with a liquid (for example boiling water). A gas wash may be used as a pre-washing process, an ethylene oxide concentration of about 15 mg/m3 being achieved in the washing gas and residual amounts lower than 1 mg/m3 being then ensured in the adsorber. The glycol contained in the waste water from the pre-washing process may be decomposed into CO¿2? and H2O in a downstream biological trickling reactor (7). The ethylene oxide-free pure air from the installation is used for aerating the biological trickling reactor (7)

公开(公告)号：EP0644795B1

公开(公告)日：1997-05-28

申请号：EP93900494.1

申请日：1992-12-18

申请人： MODO-CHEMETICS AKTIEBOLAG

发明人： THUNSTRÖM, Alf

IPC分类号： B01D53/72 ,  B01D53/74

CPC分类号： B01D53/885 ,  B01D53/864

摘要： This invention relates to a method of purifying gases which are polluted by hydrocarbons and the like in an apparatus comprising two reactors, each reactor comprising a catalyst bed and a ceramic bed. According to the invention the method is characterized by the combination of the following moments: the gas that shall be purified is forced to stream alternately through a passage comprising the first reactor (1) and the second reactor (2) (clockwise streaming) and the second reactor (2) and the first reactor (1), respectively (counterclockwise streaming), the purification of the gas is made by the fact that the hydrocarbons in the gas are oxidized to carbon dioxide and water in the catalysts (5, 6); the temperature of the gas streaming through the reactors (1, 2) is measured and when the temperature exceeds a certain level, a portion of the gas is taken out from the apparatus during the passage of the catalyst bed (5) of the second reactor (2) if the gas streams in a clockwise direction, whereas a portion of the gas is taken out from the apparatus during the passage of the catalyst bed (4) of the first reactor (1), if the gas streams in a counterclockwise direction. The invention also relates to an apparatus which is useable for carrying out the method.

公开(公告)号：EP0434063B1

公开(公告)日：1997-03-12

申请号：EP90124965.6

申请日：1990-12-20

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Tosoh Corporation ,  KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

发明人： Eshita, Akinori ,  Kasahara, Senshi ,  Matsumoto, Shinichi, c/o Toyota Jidosha K.K. ,  Ishibashi, Kazunobu, c/o Toyota Jidosha K.K. ,  Yokota, Koji ,  Kondoh, Shiroh ,  Yamasita, Koiti

IPC分类号： B01D53/86 ,  B01D53/54 ,  B01D53/62 ,  B01D53/72 ,  B01J29/06

CPC分类号： B01D53/945 ,  B01J29/072 ,  Y02A50/2324 ,  Y02T10/22

摘要： Catalysts for purifying an exhaust gas containing an excess amount of oxygen, to remove nitrogen oxides, carbon monoxide and hydrocarbons therefrom, the catalyst containing silicon dioxide (SiO2) and alumina (Al2O3) in a molar ratio of SiO2 to Al2O3 of at least 15, and containing cobalt alone or in combination with at least one metal selected from alkali earth metals and rare earth metals, and a method of purifying the exhaust gas using the described catalyst. The catalyst exhibits less thermal deterioration of the properties and performances thereof during use at an elevated temperature for an extended time, and accordingly, has an excellent durability. The catalyst is particularly useful for the purification of exhaust gases originating from an internal combustion engine of an automobile, and a nitric acid production plant.

公开(公告)号：EP0705221A4

公开(公告)日：1997-01-22

申请号：EP94920239

申请日：1994-06-15

申请人： PROCESS TECHNOLOGIES INC

发明人： WEIGOLD THEODORE S ,  GALAYDA STEPHEN J ,  GUYER ORVILLE B

IPC分类号： A62D3/00 ,  A62D3/176 ,  A62D3/33 ,  A62D101/20 ,  A62D101/22 ,  A62D101/26 ,  A62D101/28 ,  B01D53/32 ,  B01D53/70 ,  B01D53/72 ,  B01D53/74 ,  B01D53/86 ,  B01J19/12 ,  B01J19/24 ,  B01J23/02 ,  B01J23/78 ,  B01J35/02 ,  C02F1/32

CPC分类号： A62D3/176 ,  A62D3/33 ,  A62D2101/20 ,  A62D2101/22 ,  A62D2101/26 ,  A62D2101/28 ,  A62D2203/02 ,  A62D2203/10 ,  B01D53/70 ,  B01D53/74 ,  B01J19/123 ,  B01J19/2415 ,  B01J2219/00094 ,  B01J2219/00144 ,  B01J2219/00155 ,  B01J2219/00162 ,  B01J2219/00177 ,  Y02P20/582

摘要： Disclosed is a method of photochemically oxidizing gaseous organic compounds, an apparatus for photochemically oxidizing gaseous organic compounds, a lining insert (66) for an apparatus for photochemically oxidizing gaseous organic compounds, and a method for producing such a lining. The principal method comprises: (a) exposing gaseous organic compounds to ultraviolet light to oxidize the gaseous organic compounds into gaseous oxidation products; and (b) reacting the gaseous oxidation products with an internal surface of a reaction chamber (46), the internal surface comprising a dry porous cementitious and sorbent material which is chemically reactive with the gaseous oxidation products, with the gaseous oxidation products being reacted with the dry porous cementitious material to produce solid reaction products incorporated in sidewalls of the chamber.

公开(公告)号：EP0655014B1

公开(公告)日：1996-12-27

申请号：EP93915494.4

申请日：1993-06-29

申请人： ENGELHARD CORPORATION

发明人： NGUYEN, Pascaline, H. ,  STERN, Eric, W. ,  DEEBA, Michel ,  BURK, Patrick, L.

IPC分类号： B01D53/70 ,  B01D53/72

CPC分类号： B01J23/34 ,  B01D53/8662 ,  B01D53/8668 ,  B01J23/22

摘要： A catalyst is disclosed for treating gas streams containing organic compounds such as halogenated organic compounds. The catalyst is comprised of vanadium oxide, zirconium oxide and at least one oxide of manganese, cerium or cobalt. Also disclosed is a process for treating gas streams using such catalysts.

公开(公告)号：EP0541271B1

公开(公告)日：1996-02-07

申请号：EP92309657.2

申请日：1992-10-22

申请人： FORD MOTOR COMPANY LIMITED ,  FORD-WERKE AKTIENGESELLSCHAFT ,  FORD FRANCE S. A.

发明人： Subramanian, Somasundaram ,  Chattha, Mohinder S.

IPC分类号： B01D53/56 ,  B01D53/62 ,  B01D53/72 ,  B01D53/94

CPC分类号： B01D53/945 ,  B01J23/63 ,  B01J35/0006 ,  Y02T10/22

公开(公告)号：EP0640391A2

公开(公告)日：1995-03-01

申请号：EP94112111.3

申请日：1994-08-03

申请人： TRIDELTA GmbH

发明人： Winterstein, Georg, Dr. ,  Burckhardt, Wolfgang, Dr.

IPC分类号： B01J37/00 ,  B01J23/00 ,  B01D53/72 ,  B01D53/70

CPC分类号： C04B35/16 ,  B01D53/8662 ,  B01D53/8668 ,  B01J23/002 ,  B01J35/04

摘要： Durch die Erfindung soll eine Katalysator zur oxidativen Entgiftung auch von Spuren der oben genannten Stoffgruppe geschaffen werden, der die Nachteile bekannter Katalysatoren mit Metallen der Platingruppe hinsichtlich Preis, erforderlicher Regelungstechnik und Empfindlichkeit gegen abrasive Stäube nicht aufweist. Diese Aufgabe wird bei einem wabenförmigen keramischen Katalysator durch die Kombination folgender Merkmale gelöst:

Trägerkomponente aus Schichtsilikaten,
gleichmäßig zugemischte ternäre Oxide als katalytisch wirksame Komponente,
spezifische Oberfläche > 50 m²/g
   und
bimodale Porengrößenverteilung zwischen 5 ... 10 nm und 25 ... 200 nm.

摘要翻译： 本发明是为了产生氧化解毒的催化剂，即使是上述物质组的痕迹，其价格，所需的控制方法和对研磨性粉尘的敏感度也不表现出含有铂族金属的已知催化剂的缺点。 该目的通过以下特征的组合在蜂窝状陶瓷催化剂中实现： - 由硅酸盐制成的载体组分， - 均匀混合的三元氧化物作为催化活性组分，比表面积> 50m 2 / g， - 5〜10nm和25〜200nm之间的双峰孔径分布。

公开(公告)号：EP0639400A1

公开(公告)日：1995-02-22

申请号：EP94111551.1

申请日：1994-07-25

申请人： Corning Incorporated

发明人： Hertl, William, Corning Inc. Patent Department ,  Lachman, Irwing Morris, Corning Inc.

IPC分类号： B01D53/72 ,  B01D53/94 ,  B01D53/04

CPC分类号： B01D53/9445 ,  B01D53/0454 ,  B01D53/944 ,  F01N3/0807 ,  F01N3/0878 ,  F01N3/20 ,  F01N13/009 ,  F01N2240/02 ,  F01N2250/12 ,  F01N2370/24 ,  F01N2410/12 ,  F02M26/15 ,  Y02T10/20 ,  Y02T10/22

摘要： A modified large pore zeolite molecular sieve structure is disclosed for adsorbing alkenes emitted during engine start-up, before the catalytic converter has attained its effective operating temperature. The zeolite molecular sieve is modified by inserting certain metal ions into the molecular sieve structure. In particular, a modified y-zeolite having a high adsorption capacity for propylene is disclosed.

摘要翻译： 公开了改进的大孔沸石分子筛结构，用于吸收在发动机起动期间排出的烯烃，在催化转化器达到其有效工作温度之前。 沸石分子筛通过将某些金属离子插入分子筛结构而被改性。 具体地说，公开了对丙烯具有高吸附能力的改性γ-沸石。