ES2105452T3 - METHOD FOR REDUCING THE IGNITION TEMPERATURE OF A CATALYTIC AND EXOTHERMIC REACTION. - Google Patents

METHOD FOR REDUCING THE IGNITION TEMPERATURE OF A CATALYTIC AND EXOTHERMIC REACTION.

Info

Publication number
ES2105452T3
ES2105452T3 ES94114279T ES94114279T ES2105452T3 ES 2105452 T3 ES2105452 T3 ES 2105452T3 ES 94114279 T ES94114279 T ES 94114279T ES 94114279 T ES94114279 T ES 94114279T ES 2105452 T3 ES2105452 T3 ES 2105452T3
Authority
ES
Spain
Prior art keywords
gas
ignition temperature
diameter
channels
reducing
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
ES94114279T
Other languages
Spanish (es)
Inventor
Ivar Ivarsen Primdahl
Thomas Sandahl Christensen
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.)
Topsoe AS
Original Assignee
Haldor Topsoe AS
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 Haldor Topsoe AS filed Critical Haldor Topsoe AS
Application granted granted Critical
Publication of ES2105452T3 publication Critical patent/ES2105452T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the exhaust apparatus; Spatial arrangements of exhaust apparatuses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic housing
    • F01N2350/06—Fitting ceramic monoliths in a metallic housing with means preventing gas flow by-pass or leakage

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Catalysts (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

UN METODO DE REDUCIR TEMPERATURA DE IGNICION DURANTE REACCIONES CATALITICAS EXOTERMICAS EN REACTIVOS GASEOSOS EN UN PROCESO EN QUE ES PASADO GAS A TRAVES DE UNA UNIDAD CATALITICA MONOLITICAMENTE ESTRUCTURADA DOTADA CON UNA PLURALIDAD DE CANALES (2) HIDRAULICOS DE PEQUEÑO DIAMETRO Y UNA PLURALIDAD DE CANALES HIDRAULICOS (4) DE AMPLIO DIAMETRO, CUYO METODO COMPRENDE PASAR UNA PRIMERA PORCION (8) DEL GAS DE PROCESO A TRAVES DE LOS CANALES (2) DE PEQUEÑO DIAMETRO Y UNA SEGUNDA PORCION (10) DEL GAS PROCESADO A TRAVES DE LOS CANALES (4) DE DIAMETRO AMPLIO, DE MODO QUE LA PRIMERA PORCION (8) DEL GAS A UNA REDUCIDA VELOCIDAD DE FLUJO Y UNA ELEVADA PROPORCION DE REACCION EN LA UNIDAD Y EL EXCESO DE CALOR DESARROLLADO DURANTE EL PROCEDIMIENTO DE REACCIONES CATALITICAS A ELEVADA PROPORCION EN LOS CANALES DE PEQUEÑO DIAMETRO ES TRANSFERIDO A LA SEGUNDA PORCION (10) DE GAS PROCESADO PARA REDUCIR LA TEMPERATURA DE IGNICION DEL PROCEDIMIENTO DE REACCIONES CATALITICAS EN LOS CANALES (4) DE DIAMETRO AMPLIO.A METHOD OF REDUCING THE IGNITION TEMPERATURE DURING EXOTHERMAL CATALYTIC REACTIONS IN GASEOUS REAGENTS IN A PROCESS IN WHICH GAS IS PASSED THROUGH A MONOLITHICALLY STRUCTURED, HYDRAULALLY-DRAINED CHANNEL UNIT (2) 4) BROAD DIAMETER, WHICH METHOD INCLUDES PASSING A FIRST PORTION (8) OF PROCESS GAS THROUGH CHANNELS (2) OF A SMALL DIAMETER AND A SECOND PORTION (10) OF GAS PROCESSED THROUGH CHANNELS (4) WIDE DIAMETER, SO THAT THE FIRST PORTION (8) OF GAS AT A REDUCED FLOW SPEED AND A HIGH PROPORTION OF REACTION IN THE UNIT AND THE EXCESS OF HEAT DEVELOPED DURING THE PROCEDURE OF CATALYTIC REACTIONS TO HIGH DIAMOND PROPORTION IN THE CANALS IT IS TRANSFERRED TO THE SECOND PORTION (10) OF GAS PROCESSED TO REDUCE THE IGNITION TEMPERATURE OF THE CATALYTIC REACTIONS PROCEDURE IN THE DIAMETER CHANNELS (4) LARGE.

ES94114279T 1993-09-27 1994-09-12 METHOD FOR REDUCING THE IGNITION TEMPERATURE OF A CATALYTIC AND EXOTHERMIC REACTION. Expired - Lifetime ES2105452T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK931089A DK108993D0 (en) 1993-09-27 1993-09-27 METHOD OF REDUCING TEMPERATURE TEMPERATURE

Publications (1)

Publication Number Publication Date
ES2105452T3 true ES2105452T3 (en) 1997-10-16

Family

ID=8100874

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94114279T Expired - Lifetime ES2105452T3 (en) 1993-09-27 1994-09-12 METHOD FOR REDUCING THE IGNITION TEMPERATURE OF A CATALYTIC AND EXOTHERMIC REACTION.

Country Status (5)

Country Link
EP (1) EP0645527B1 (en)
JP (1) JPH07208743A (en)
DE (1) DE69404104T2 (en)
DK (1) DK108993D0 (en)
ES (1) ES2105452T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI107828B (en) * 1999-05-18 2001-10-15 Kemira Metalkat Oy Systems for cleaning exhaust gases from diesel engines and method for cleaning exhaust gases from diesel engines
US6179608B1 (en) * 1999-05-28 2001-01-30 Precision Combustion, Inc. Swirling flashback arrestor
ZA200306075B (en) * 2001-02-16 2004-09-08 Battelle Memorial Institute Integrated reactors, methods of making same, and methods of conducting simultaneous exothermic and endothermic reactions.
DE10219747B4 (en) * 2002-05-02 2005-06-23 Daimlerchrysler Ag A method for preventing re-ignition in a mixture flowing to a reaction space and a reactor for carrying out the method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH086582B2 (en) * 1986-10-31 1996-01-24 マツダ株式会社 Engine exhaust gas purification catalytic device
DE3828644A1 (en) * 1988-08-24 1990-03-01 Bayerische Motoren Werke Ag Branched exhaust line of an internal combustion engine
DE4024942A1 (en) * 1990-08-06 1992-02-13 Emitec Emissionstechnologie MONOLITHIC METAL HONEYCOMB WITH VARIOUS CHANNEL NUMBER

Also Published As

Publication number Publication date
DE69404104T2 (en) 1997-10-30
DK108993D0 (en) 1993-09-27
DE69404104D1 (en) 1997-08-14
EP0645527B1 (en) 1997-07-09
EP0645527A1 (en) 1995-03-29
JPH07208743A (en) 1995-08-11

Similar Documents

Publication Publication Date Title
ATE69559T1 (en) PRODUCTION OF SYNTHETIC GAS BY CONVECTION REFORMING.
US4916904A (en) Injection element for a combustion reactor, more particularly, a steam generator
ES2135964T3 (en) PROCEDURE FOR OBTAINING POLYSTYRENE THROUGH ANIONIC AND CONTINUOUS POLYMERIZATION.
AR032927A1 (en) PROCESS FOR THE EPOXIDATION OF OLEFINS
CA2222146A1 (en) A method for flame stabilization in a process for preparing synthesis gas
DK0991590T3 (en) Method and apparatus for making fullerenes
ES2109031T5 (en) PROCEDURE FOR THE RECOVERY OF OXYGEN FROM A CRYOGENIC AIR SEPARATION SYSTEM.
ES2119283T3 (en) PROCESS TO PRODUCE 2-METHYL-1,4-NAPHTOQUINONE.
ES471107A1 (en) Catalytic reactor for isothermal reactions
ES2158448T3 (en) IMPROVED PROCEDURE FOR ACRILONITRILE RECOVERY.
MX9400277A (en) PURIFICATION SYSTEM USING COMPRESSION HEAT.
ES2124875T3 (en) DEVICE AND PROCEDURE FOR THE COMBUSTION OF OXIDIZABLE COMPONENTS IN A CARRIER GAS TO BE PURIFIED.
GB1075841A (en) Gas purification apparatus
FR2572380B2 (en) METHANOL REFORMING PROCESS AND IMPLEMENTING DEVICE
BR8602735A (en) DEVICE AND PROCESS FOR RADIATION MEDICATION IN A CONVERTER
FR2546077B1 (en) HIGH TEMPERATURE REACTION DEVICE
SE7713226L (en) CATALYTIC REACTION EQUIPMENT
JPS53130274A (en) Treating method for exhaust gas containing nitrogen monoxide
FR2416716A1 (en) TUBE INTENDED FOR THE ADIABATIC RELIEF OF GASES, IN PARTICULAR FOR THE SEPARATION OF GASES, IN PARTICULAR FOR THE SEPARATION OF URANIUM ISOTOPES WITH SELECTIVE EXCITATION FOR AN ISOTOPE
ES2047983T3 (en) NITRURATED SILICA.
ATE217541T1 (en) CATALYST ARRANGEMENT, PARTICULARLY FOR A THREE-PATH BOILER
MX171199B (en) PROCESS FOR THE MANUFACTURE OF AMMONIUM AND AMMONIUM CARBONATE
JPS57193710A (en) Muffler for motorcycle
ES8407460A1 (en) Process for reclaiming and storing energy.
JPS51149165A (en) A process for decomposing ammonia gas

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 645527

Country of ref document: ES