ES2050549T3 - Procedimiento y dispositivo para la regeneracion de catalizadores de denox gastados. - Google Patents

Procedimiento y dispositivo para la regeneracion de catalizadores de denox gastados.

Info

Publication number
ES2050549T3
ES2050549T3 ES92104519T ES92104519T ES2050549T3 ES 2050549 T3 ES2050549 T3 ES 2050549T3 ES 92104519 T ES92104519 T ES 92104519T ES 92104519 T ES92104519 T ES 92104519T ES 2050549 T3 ES2050549 T3 ES 2050549T3
Authority
ES
Spain
Prior art keywords
denox
molybdeno
catalysts
catalyst
regeneration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES92104519T
Other languages
English (en)
Inventor
Erich Dr Hums
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2050549T3 publication Critical patent/ES2050549T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/92—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

PROCEDIMIENTO Y DISPOSITIVO PARA LA REGENERACION DE CATALIZADORES USADOS DENOX. 2.1 LA ACTIVIDAD CATALITICA DE LOS CONOCIDOS CATALIZADORES DENOX DISMINUYE CON EL TRANSCURSO DEL TIEMPO DE APLICACION CADA VEZ MAS HASTA QUE ES IMPRESCINDIBLE CAMBIAR LOS CATALIZADORES. DEBIDO A QUE EL CAMBIO DE LOS CATALIZADORES DENOX ES MUY COSTOSO, CONDUCE A UNA DESCONEXION PROVISIONAL DE LA INSTALACION DE COMBUSTION Y ADEMAS SE FORMAN SUSTANCIAS NOCIVAS QUE HAY QUE EVACUAR, SE HA DE PROLONGAR LA DURACION DE LOS CATALIZADORES DENOX. 2.2 PARA ELLO, LA INVENCION PREVE QUE SE DEPOSITE UN COMPUESTO DE MOLIBDENO-OXIGENO (14, 90) O SUS COMPUESTOS PRECURSORES SOBRE LOS CATALIZADORES DENOX USADOS. ESTO PUEDE TENER LUGAR MEDIANTE LA PULVERIZACION DE POLVO QUE CONTIENE OXIDO DE MOLIBDENO EN EL CANAL DE GAS DE HUMO POR ENCIMA DE LOS CATALIZADORES DENOX O MEDIANTE DEPOSICION DE SUPERFICIES CON CONTENIDO DE OXIDO DE MOLIBDENO EN EL CANAL DE GAS DE HUMO POR ENCIMA DE LOS CATALIZADORES DENOX. 2.3 LA INVENCION SE PUEDE APLICAR EN TODAS LAS INSTALACIONES DE COMBUSTION.
ES92104519T 1991-03-28 1992-03-16 Procedimiento y dispositivo para la regeneracion de catalizadores de denox gastados. Expired - Lifetime ES2050549T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4110337A DE4110337A1 (de) 1991-03-28 1991-03-28 Verfahren und einrichtung zur regeneration verbrauchter deno(pfeil abwaerts)x(pfeil abwaerts)-katalysatoren

Publications (1)

Publication Number Publication Date
ES2050549T3 true ES2050549T3 (es) 1994-05-16

Family

ID=6428488

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92104519T Expired - Lifetime ES2050549T3 (es) 1991-03-28 1992-03-16 Procedimiento y dispositivo para la regeneracion de catalizadores de denox gastados.

Country Status (5)

Country Link
US (1) US5283052A (es)
EP (1) EP0505881B1 (es)
AT (1) ATE102505T1 (es)
DE (2) DE4110337A1 (es)
ES (1) ES2050549T3 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308810A (en) * 1992-12-28 1994-05-03 Atlantic Richfield Company Method for treating contaminated catalyst
US5332562A (en) * 1993-06-18 1994-07-26 Kersey Larry M Method for removing particulate matter and gases from a polluted gas stream
US5679340A (en) * 1994-03-31 1997-10-21 Diacrin, Inc. Cells with multiple altered epitopes on a surface antigen for use in transplantation
AT400114B (de) * 1994-04-15 1995-10-25 Integral Umwelt Und Anlagentec Anlage und verfahren zur katalytischen reduktion von in den rauchgasen einer feuerung mit flüssigen brennstoffen enthaltenen stickoxiden mit ammoniak, anlage zur verfeuerung von flüssigen fossilen brennstoffen und verfahren zur regenerierung eines katalysators
CH692181A5 (de) * 1995-09-08 2002-03-15 Elex Ag Rauchgasreinigungsanlage.
US6776606B2 (en) * 2001-03-02 2004-08-17 Emmissions Technology, Llc Method for oxidizing mixtures
WO2004092651A2 (en) * 2003-04-14 2004-10-28 Haskew James W Method and system for increasing fuel economy in carbon-based fuel combustion processes
DE102005000873A1 (de) * 2005-01-05 2006-07-13 Blohm, Maik Verfahren und Vorrichtung zur Reinigung von SCR-Katalysatoren zwecks Wiedererlangung der Aktivität
EP2258479A1 (de) * 2005-12-16 2010-12-08 Evonik Energy Services GmbH Verfahren zum Behandeln von Rauchgas-Katalysatoren
ES2368512T3 (es) 2006-06-22 2011-11-17 Hitachi Zosen Inova Ag Regeneración de catalizadores scr de baja temperatura.
DE102007020855A1 (de) 2007-05-02 2008-11-06 Evonik Energy Services Gmbh Verfahren zum Reinigen von Rauchgasen aus Verbrennungsanlagen
DK2033702T3 (da) * 2007-09-04 2011-05-02 Evonik Energy Services Gmbh Fremgangsmåde til fjernelse af kviksølv fra forbrændingsgasser
US7723251B2 (en) * 2008-03-11 2010-05-25 Evonik Energy Services Llc Method of regeneration of SCR catalyst
US7741239B2 (en) * 2008-03-11 2010-06-22 Evonik Energy Services Llc Methods of regeneration of SCR catalyst poisoned by phosphorous components in flue gas
US8033167B2 (en) * 2009-02-24 2011-10-11 Gary Miller Systems and methods for providing a catalyst

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882159A (en) * 1973-08-20 1975-05-06 Standard Oil Co Reactivation of molybdenum containing oxidation catalysts in fluid bed reactors
US4078898A (en) * 1974-02-11 1978-03-14 Gould Inc. Catalyst-coated expanded metal foil substrate for an exhaust gas reactor
US4029636A (en) * 1974-11-12 1977-06-14 Celanese Corporation Method for reducing molybdenum trioxide content of gases issuing from reactors containing molybdenum-based catalysts
US4061596A (en) * 1974-12-02 1977-12-06 Mitsubishi Chemical Industries Ltd. Process for preparing titanium oxide shaped carrier
US4142989A (en) * 1976-08-17 1979-03-06 Kobe Steel, Ltd. Process for continuously regenerating a degraded catalyst used for removing nitrogen oxides from exhaust gas
US4393031A (en) * 1979-02-22 1983-07-12 Werner Henke Process for efficiently removing oxides of nitrogen from exhaust gas
DE3217700A1 (de) * 1981-05-15 1982-12-02 Nitto Chemical Industry Co., Ltd., Tokyo Verfahren zur verbesserung der aktivitaet von tellur enthaltenden metalloxidkatalysatoren
DE3311521A1 (de) * 1982-07-17 1984-01-19 Skw Trostberg Ag, 8223 Trostberg Verfahren zur reaktivierung von molybdaenhaltigen katalysatoren
JPS5976544A (ja) * 1982-10-26 1984-05-01 Nitto Chem Ind Co Ltd 鉄・アンチモン系金属酸化物触媒の再生方法
US4975256A (en) * 1988-06-09 1990-12-04 W. R. Grace & Co.-Conn. Process using catalysts for selective catalytic reduction denox technology
DE3824464A1 (de) * 1988-07-19 1990-01-25 Basf Ag Verfahren zum regenerieren von katalysatoren
US4871522A (en) * 1988-07-25 1989-10-03 The Babcock & Wilcox Company Combined catalytic baghouse and heat pipe air heater

Also Published As

Publication number Publication date
ATE102505T1 (de) 1994-03-15
EP0505881A1 (de) 1992-09-30
US5283052A (en) 1994-02-01
DE59200081D1 (de) 1994-04-14
EP0505881B1 (de) 1994-03-09
DE4110337A1 (de) 1992-10-01

Similar Documents

Publication Publication Date Title
ES2050549T3 (es) Procedimiento y dispositivo para la regeneracion de catalizadores de denox gastados.
AR006689A1 (es) Cartucho, caperuza y minipastilla como soporte de sustancia activa para aerosoles dosificadores libres de gas propelente
ES2036420T3 (es) Catalizador de forma monolitica o alveolar.
NO851599L (no) Injeksjonssproeyte, saerlig til bruk for tannleger
ES2044912T3 (es) Composiciones farmaceuticas dotadas de actividad secuestrante para los acidos biliares, conteniendo colestiramina como principio activo, y procedimiento para su preparacion.
ES554325A0 (es) Procedimiento de depuracion de un gas por absorcion sobre carbon activo
DE69529670T2 (de) Oxazolidinon derivate und diese enthaltende pharmazeutische zusammensetzungen
SE382154B (sv) Medel for minskning av plantors lengdtillvext innehallande som aktiv substans vissa salter av cykliska kvevehaltiga foreningar
AR032879A1 (es) Compuestos derivados de ecteinascidina, sus composiciones farmaceuticas, sus usos y metodo de tratamiento de tumores
SE7808049L (sv) Blekningsaktivator for tvett- och rengoringsmedel, som innehaller aktivt syre avgivande emnen
DE59503759D1 (de) Sorptionskatalysator zur sorptiven und oxidativen Reinigung der Abgase von Dieselmotoren
MX9205384A (es) Dispositivo de administracion transdermica de un agente activo para uso veterinario.
IT973275B (it) Procedimento e dispositivo per disintossicare i gas di scarico tramite spostamento dell istante di accensione
NO784107L (no) Impregnert aktivkull for anvendelse som luftrensemiddel, og fremgangsmaate til dets fremstilling
AR225362A1 (es) Composicion esporicida desinfectante y esterilizante,excluidos sus usos farmaceuticos
IT8020417A0 (it) Impianto per rimuovere selettivamente ceneri volanti e un agente d'assorbimento usato per costituenti volatili, da gas di scarico.
ITRM930488A0 (it) Composizione detergente per la cura del corpo.
IT8004813A0 (it) Procedimento per la rigenerazione di residui asciutti e granulosi provenienti da impianti di purificazione dei gas di scarico.
DK165676A (da) Antibiotikum, en fremgangsmade til fremstilling deraf samt dets anvendelse som plantebeskyttelsesmiddel
OA05509A (fr) Nouvelle composition insecticide synergique contenant du phosphorodithiote de 0-éthyle, 0-[ 4-méthylthiophényle] et S-prophyle et de la N'-(2-méthylthiophényle] et S-propyle et de la N'-(2-méthyl-4chlorophényl)-N,N-diméthylformamidine.
DK412286A (da) 4-acylaminobenzamid-derivater, fremgangsmaade til fremstilling heraf samt mellemprodukter til brug ved fremgangsmaaden
DK630088D0 (da) Azelastinembonat, fremgangsmaade til fremstilling deraf og farmaceutiske praeparater med indhold af denne forbindelse som aktivt middel
IT7928160A0 (it) Dispositivo di assorbimento per la depurazione di gas.
ES507630A0 (es) Un procedimiento para la preparacion de un nuevo reptido activo.
DK162631C (da) Forbindelse, betegnet fr-900216, til anvendelse som terapeutisk aktivt stof, farmaceutisk praeparat indeholdende forbindelsen samt anvendelse af forbindelsen

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 505881

Country of ref document: ES