WO2008011167A3 - Imroved diesel particulate filter - Google Patents

Imroved diesel particulate filter Download PDF

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Publication number
WO2008011167A3
WO2008011167A3 PCT/US2007/016488 US2007016488W WO2008011167A3 WO 2008011167 A3 WO2008011167 A3 WO 2008011167A3 US 2007016488 W US2007016488 W US 2007016488W WO 2008011167 A3 WO2008011167 A3 WO 2008011167A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter medium
porous ceramic
imroved
particulate filter
fluid
Prior art date
Application number
PCT/US2007/016488
Other languages
French (fr)
Other versions
WO2008011167A2 (en
Inventor
Aleksander Jozef Pyzik
Robert Alan Newman
Nicholas Myron Shinkel
Original Assignee
Dow Global Technologies Inc
Aleksander Jozef Pyzik
Robert Alan Newman
Nicholas Myron Shinkel
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 Dow Global Technologies Inc, Aleksander Jozef Pyzik, Robert Alan Newman, Nicholas Myron Shinkel filed Critical Dow Global Technologies Inc
Priority to JP2009520860A priority Critical patent/JP4960453B2/en
Priority to AT07810664T priority patent/ATE509002T1/en
Priority to CN2007800269181A priority patent/CN101489950B/en
Priority to EP07810664A priority patent/EP2046696B1/en
Priority to PL07810664T priority patent/PL2046696T3/en
Publication of WO2008011167A2 publication Critical patent/WO2008011167A2/en
Publication of WO2008011167A3 publication Critical patent/WO2008011167A3/en

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Classifications

    • 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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0006—Honeycomb structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/32—Expansion-inhibited materials
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/322—Transition aluminas, e.g. delta or gamma aluminas
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
    • C04B2235/445—Fluoride containing anions, e.g. fluosilicate
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/46—Gases other than oxygen used as reactant, e.g. nitrogen used to make a nitride phase
    • 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

Abstract

An improved particulate filtration system has an inlet, for the fluid to be filtered, connected to a housing containing a filter medium such that the fluid passes through the filter medium, and an outlet for the filtered fluid to exit. The filtration system's improvement is the filter medium being comprised of a porous ceramic of fused platelet grains. In a particular embodiment, the porous ceramic is a celsian porous ceramic, where the celsian grains have a hexagonal morphology and display a continuous volume thermal expansion coefficient from 100°C to 1000°C.
PCT/US2007/016488 2006-07-21 2007-07-20 Imroved diesel particulate filter WO2008011167A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2009520860A JP4960453B2 (en) 2006-07-21 2007-07-20 Improved diesel particulate filter
AT07810664T ATE509002T1 (en) 2006-07-21 2007-07-20 IMPROVED DIESEL PARTICLE FILTER
CN2007800269181A CN101489950B (en) 2006-07-21 2007-07-20 Imroved diesel particulate filter
EP07810664A EP2046696B1 (en) 2006-07-21 2007-07-20 Imroved diesel particulate filter
PL07810664T PL2046696T3 (en) 2006-07-21 2007-07-20 Imroved diesel particulate filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83274006P 2006-07-21 2006-07-21
US60/832,740 2006-07-21

Publications (2)

Publication Number Publication Date
WO2008011167A2 WO2008011167A2 (en) 2008-01-24
WO2008011167A3 true WO2008011167A3 (en) 2008-06-05

Family

ID=38957412

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/016488 WO2008011167A2 (en) 2006-07-21 2007-07-20 Imroved diesel particulate filter

Country Status (7)

Country Link
US (1) US7879126B2 (en)
EP (1) EP2046696B1 (en)
JP (1) JP4960453B2 (en)
CN (1) CN101489950B (en)
AT (1) ATE509002T1 (en)
PL (1) PL2046696T3 (en)
WO (1) WO2008011167A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009020835A2 (en) 2007-08-03 2009-02-12 Errcive, Inc. Porous bodies and methods
US8277743B1 (en) 2009-04-08 2012-10-02 Errcive, Inc. Substrate fabrication
US8359829B1 (en) 2009-06-25 2013-01-29 Ramberg Charles E Powertrain controls
US9833932B1 (en) 2010-06-30 2017-12-05 Charles E. Ramberg Layered structures
CN103080046B (en) 2010-09-01 2016-02-17 陶氏环球技术有限责任公司 For discriminating layer being applied to the method on porous ceramic filter
MX2013002501A (en) 2010-09-01 2013-04-29 Dow Global Technologies Llc Method for applying discriminating layer onto porous ceramic filters via gas-borne prefabricated porous assemblies.
WO2012109126A1 (en) 2011-02-08 2012-08-16 Dow Global Technologies Llc System and method for reducing emissions from a combustion process
CN104117277A (en) * 2014-07-03 2014-10-29 李成龙 Recovering method of acid waste gas in crude benzene hydrofining project

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61423A (en) * 1984-03-31 1986-01-06 Ibiden Co Ltd Filter comprising silicon carbide sintered body
JPH11246280A (en) * 1998-03-05 1999-09-14 Asahi Glass Co Ltd Monoclinic celsian porous body and its production

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL284641A (en) 1961-10-23
US3950507A (en) 1974-03-19 1976-04-13 Boreskov Georgy Konstantinovic Method for producing granulated porous corundum
US4018614A (en) * 1976-04-01 1977-04-19 Corning Glass Works Celsian-zirconia compositions
US4276071A (en) 1979-12-03 1981-06-30 General Motors Corporation Ceramic filters for diesel exhaust particulates
US4329162A (en) 1980-07-03 1982-05-11 Corning Glass Works Diesel particulate trap
DE3407172C2 (en) 1984-02-28 1986-09-04 Degussa Ag, 6000 Frankfurt Device for cleaning exhaust gases from diesel engines
US4994589A (en) 1985-08-13 1991-02-19 Union Carbide Chemicals And Plastics Company Inc. Catalytic system for epoxidation of alkenes
JPS637814A (en) * 1986-06-30 1988-01-13 Ibiden Co Ltd Ceramic filter
JPS63185425A (en) 1987-01-28 1988-08-01 Ngk Insulators Ltd Ceramic honeycomb filter for cleaning exhaust gas
CN1009437B (en) 1988-02-03 1990-09-05 中国石油化工总公司 High-efficiency silver catalyst for oxidizing ethylene into epoxy ethane
US4902487A (en) 1988-05-13 1990-02-20 Johnson Matthey, Inc. Treatment of diesel exhaust gases
JPH02145473A (en) * 1988-11-25 1990-06-04 Kyocera Corp Ceramics of free-cutting properties and their production
AU639326B2 (en) * 1990-05-23 1993-07-22 Atochem Ceramic preforms comprising monocrystalline hexagonal platelets of alpha-alumina, their production and applications thereof
US4994419A (en) * 1990-09-07 1991-02-19 The United States Of America As Represented By The Secretary Of The Navy Low temperature synthesis of high purity monoclinic celsian using topaz
US5041400A (en) * 1990-09-13 1991-08-20 The United States Of America As Represented By The Secretary Of The Navy Low temperature synthesis of high purity monoclinic celsian
US5098455A (en) 1990-12-21 1992-03-24 The Dow Chemical Company Regenerable exhaust gas filter element for diesel engines
US5132256A (en) * 1991-03-26 1992-07-21 Corning Incorporated Fiber-reinforced composite comprising mica-doped ceramic matrix
JP2683452B2 (en) * 1993-05-20 1997-11-26 住友電気工業株式会社 Porous ceramic body and method for producing the same
JP3744010B2 (en) 1993-06-30 2006-02-08 住友化学株式会社 Method for producing α-alumina powder
US5447291A (en) * 1993-10-08 1995-09-05 The Ohio State University Processes for fabricating structural ceramic bodies and structural ceramic-bearing composite bodies
DE69510989T2 (en) 1994-04-28 2000-01-20 Sumitomo Chemical Co Process for the production of alpha alumina powder
US5698483A (en) 1995-03-17 1997-12-16 Institute Of Gas Technology Process for preparing nanosized powder
US5939354A (en) 1996-04-10 1999-08-17 Catalytic Solutions, Inc. Perovskite-type metal oxide compounds and method for preparing the compounds
US5902363A (en) * 1997-07-18 1999-05-11 Alliedsignal Composites Inc. Ceramic hot-gas filter
US5998523A (en) 1997-07-18 1999-12-07 The Dow Chemical Company Composition comprising a metal salt and metal powder therefrom by the calcining thereof
JP3260111B2 (en) 1997-10-09 2002-02-25 伊藤忠飼料株式会社 Methods for suppressing weight loss and reducing intestinal harmful bacteria when birds stop feeding
US6039929A (en) * 1997-12-15 2000-03-21 The United States Of America As Represented By The Secretary Of The Navy Synthesis of monoclinic celsian
TR200100553T2 (en) 1998-08-19 2001-07-23 The Dow Chemical Company Process for the preparation of nano-sized metal oxide powders
KR20010078396A (en) * 1998-11-20 2001-08-20 알프레드 엘. 미첼슨 Fabrication of low thermal expansion, high strength cordierite structures
US6306335B1 (en) 1999-08-27 2001-10-23 The Dow Chemical Company Mullite bodies and methods of forming mullite bodies
WO2001045828A1 (en) 1999-12-23 2001-06-28 Dow Global Technologies Inc. Catalytic devices
JP2001247381A (en) * 2000-03-02 2001-09-11 Sumitomo Electric Ind Ltd Porous silicon carbide and method for producing the same
JP5057620B2 (en) * 2000-08-28 2012-10-24 京セラ株式会社 Low-temperature fired ceramic sintered body and wiring board
JP4404497B2 (en) 2001-03-01 2010-01-27 日本碍子株式会社 Honeycomb filter and manufacturing method thereof
US20040116276A1 (en) 2002-02-12 2004-06-17 Aleksey Yezerets Exhaust aftertreatment emission control regeneration
US7452591B2 (en) * 2002-03-29 2008-11-18 Ngk Insulators, Ltd. Silicon carbide based porous material and method for production thereof
US20040001781A1 (en) 2002-06-27 2004-01-01 Engelhard Corporation Multi-zone catalytic converter
CN1311874C (en) * 2002-07-11 2007-04-25 住友电气工业株式会社 Porous semiconductor and process for producing the same
US6787195B2 (en) * 2003-02-03 2004-09-07 General Electric Company Method of depositing a coating on Si-based ceramic composites
WO2005009922A1 (en) * 2003-07-25 2005-02-03 Ngk Insulators, Ltd. Ceramic porous body and method for evaluating its permeability
JP4591913B2 (en) * 2004-04-13 2010-12-01 株式会社Ｉｈｉ Fiber-reinforced heat-resistant sound-absorbing material and method for producing the same
JP5013239B2 (en) * 2004-06-15 2012-08-29 日立金属株式会社 High strength low temperature fired ceramic composition and multilayer electronic component using the same
CN100586939C (en) 2004-06-18 2010-02-03 国际壳牌研究有限公司 Process for the production of olefin oxide, 1,2-diol, 1,2-diol ether, or alkanolamine
US7071135B2 (en) * 2004-09-29 2006-07-04 Corning Incorporated Ceramic body based on aluminum titanate and including a glass phase
JP5177342B2 (en) * 2006-03-31 2013-04-03 双信電機株式会社 Manufacturing method of ceramic porcelain

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61423A (en) * 1984-03-31 1986-01-06 Ibiden Co Ltd Filter comprising silicon carbide sintered body
JPH11246280A (en) * 1998-03-05 1999-09-14 Asahi Glass Co Ltd Monoclinic celsian porous body and its production

Also Published As

Publication number Publication date
WO2008011167A2 (en) 2008-01-24
PL2046696T3 (en) 2013-04-30
EP2046696B1 (en) 2011-05-11
CN101489950A (en) 2009-07-22
JP2009544460A (en) 2009-12-17
US7879126B2 (en) 2011-02-01
CN101489950B (en) 2013-05-08
ATE509002T1 (en) 2011-05-15
US20080017573A1 (en) 2008-01-24
EP2046696A2 (en) 2009-04-15
JP4960453B2 (en) 2012-06-27

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