IT989744B - Convertitore catalitico a base di nitruro di silicio per il tratta mento dei gas di scarico di motori a combustione interna e procedi mento per la sua produzione - Google Patents
Convertitore catalitico a base di nitruro di silicio per il tratta mento dei gas di scarico di motori a combustione interna e procedi mento per la sua produzioneInfo
- Publication number
- IT989744B IT989744B IT5123973A IT5123973A IT989744B IT 989744 B IT989744 B IT 989744B IT 5123973 A IT5123973 A IT 5123973A IT 5123973 A IT5123973 A IT 5123973A IT 989744 B IT989744 B IT 989744B
- Authority
- IT
- Italy
- Prior art keywords
- treatment
- production
- internal combustion
- silicon nitride
- exhaust gases
- Prior art date
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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
-
- 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
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
- C04B35/591—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by reaction sintering
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
- F01N3/2867—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being placed at the front or end face of catalyst body
-
- 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
-
- 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
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Biomedical Technology (AREA)
- Structural Engineering (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Ceramic Products (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29404872A | 1972-10-02 | 1972-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT989744B true IT989744B (it) | 1975-06-10 |
Family
ID=23131666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5123973A IT989744B (it) | 1972-10-02 | 1973-07-04 | Convertitore catalitico a base di nitruro di silicio per il tratta mento dei gas di scarico di motori a combustione interna e procedi mento per la sua produzione |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4972189A (hu) |
FR (1) | FR2201711A5 (hu) |
GB (1) | GB1426216A (hu) |
IT (1) | IT989744B (hu) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4596716A (en) * | 1983-06-08 | 1986-06-24 | Kennecott Corporation | Porous silicon nitride semiconductor dopant carriers |
DE3812156A1 (de) * | 1988-04-12 | 1989-10-26 | Heliotronic Gmbh | Das durchtreten von fluiden gestattendes keramisches material auf basis von in gegenwart von kohlenstoff reaktionsgebundenem siliciumpulver |
JPH0631173A (ja) * | 1992-07-10 | 1994-02-08 | N E Chemcat Corp | 排気ガス浄化用触媒及び排気ガスの浄化方法 |
FR2769857B1 (fr) * | 1997-10-16 | 1999-12-24 | Centre Nat Rech Scient | Procede de reaction chimique catalytique et catalyseur |
EP1498400A3 (en) * | 2003-07-17 | 2006-06-07 | Asahi Glass Co., Ltd. | Method for producing a silicon nitride filter |
-
1973
- 1973-07-04 IT IT5123973A patent/IT989744B/it active
- 1973-09-18 GB GB4362873A patent/GB1426216A/en not_active Expired
- 1973-10-01 FR FR7334978A patent/FR2201711A5/fr not_active Expired
- 1973-10-02 JP JP48110274A patent/JPS4972189A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2349472B2 (de) | 1976-10-07 |
JPS4972189A (hu) | 1974-07-12 |
DE2349472A1 (de) | 1974-04-25 |
GB1426216A (en) | 1976-02-25 |
FR2201711A5 (hu) | 1974-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT996622B (it) | Dispositivo per la depurazione dei gas di scarico di motori a combustione interna | |
IT1002320B (it) | Dispositivo di svelenamento cata litico per il trattamento dei gas di scarico dei motori a combustione | |
IT977472B (it) | Catalizzatore per il trattamento dei gas di scappamento dei motori | |
IT1006851B (it) | Dispositivo per la depurazione del gas di scarico di motori a combu stione interna | |
IT1006166B (it) | Dispositivo per il controllo di reattori catalitici in impianti di depurazione dei gas di scari co di motori a combustione interna | |
CA996357A (en) | Catalyzer for detoxifying exhaust gases from internal combustion engines | |
IT8067131A0 (it) | Catalizzatore per la depurazione dei gas di scarico di motori a combustione interna | |
IT1070099B (it) | Catalizzatore supportato monolitico e disposizione di catalizzatori supportati monolitici per la depurazione dei gas di scarico di motori a combustione | |
IT961314B (it) | Perfezionamento nei reattori per la purificazone dei gas di scarico di motori a combustione interna | |
IT978623B (it) | Dispositivo per la depurazione catalitica dei gas di scarico di motori a combustione | |
IT1006850B (it) | Dispositivo di regolazione per la depurazione del gas di scarico di motori a combustione interna | |
IT981752B (it) | Procedimento e dispositivo per disintossicare i gas di scarico di macchine a combustione interna | |
IT1024781B (it) | Corpo comprendente canali formati da fogl ondulati, particolarmente per la combustione catalitica dei gas di scarico di motori, e procedimento per la sua fabbricazione | |
IT1048402B (it) | Dispositivo per svelenamento dei gas di scarico dei motori a combustione interna | |
IT8068354A0 (it) | Dispositivo per la depurazione per via catalitica dei gas di scaricodi motori a combustione interna | |
IT999598B (it) | Collettore di scarico per motori a combustione interna con reattore catalitico di decontaminazione dei gas di scarico | |
IT1012082B (it) | Procedimento e dispositivo per la depurazione del gas di scarico di motori a combustione interna | |
IT990517B (it) | Dispositivo per disintossicare i gas di scarico di macchine a combustione interna | |
IT998750B (it) | Dispositivo per la depurazione dei gas di scarico di motori a combu stione interna | |
IT976245B (it) | Reattore a gas particolarmente per la combustione dei gas di scari co di motori | |
IT1111623B (it) | Dispositivo catalitico particolarmente per il trattamento dei gas di scarico di motori a combustione interna di procedimento per la sua fabbricazione | |
IT989744B (it) | Convertitore catalitico a base di nitruro di silicio per il tratta mento dei gas di scarico di motori a combustione interna e procedi mento per la sua produzione | |
IT1045812B (it) | Condotti di scarico coibentati internamente per motori a scoppio e procedimento tecnologico per la realizzazione di essi | |
IT1014234B (it) | Catalizzatore per la reazione di ingredienti gassosi procedimento ed apparecchio per la sua applica zione allo scappamento dei motori a combustione interna | |
IT959029B (it) | Convertitore di gas particolarmen te per gas di scarico di motori a combustione interna |