WO2000031386A8 - Method and apparatus to reduce engine exhaust emissions - Google Patents

Method and apparatus to reduce engine exhaust emissions

Info

Publication number
WO2000031386A8
WO2000031386A8 PCT/US1999/027425 US9927425W WO0031386A8 WO 2000031386 A8 WO2000031386 A8 WO 2000031386A8 US 9927425 W US9927425 W US 9927425W WO 0031386 A8 WO0031386 A8 WO 0031386A8
Authority
WO
WIPO (PCT)
Prior art keywords
engine
exhaust
enriched air
air
nitrogen
Prior art date
Application number
PCT/US1999/027425
Other languages
French (fr)
Other versions
WO2000031386A1 (en
Inventor
Ramesh B Poola
Ramanujam R Sekar
Original Assignee
Univ Chicago
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 Univ Chicago filed Critical Univ Chicago
Publication of WO2000031386A1 publication Critical patent/WO2000031386A1/en
Publication of WO2000031386A8 publication Critical patent/WO2000031386A8/en

Links

Classifications

    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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
    • B01D53/22—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 by diffusion
    • 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
    • B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • 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
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/34—Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818—Employing electrical discharges or the generation of a plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/18—Specific valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/22—Cooling or heating elements
    • B01D2313/221—Heat exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/42—Catalysts within the flow path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

An emission control system (18, 118) for injecting oxygen-enriched air into an exhaust system (16, 116) of an engine (10, 110) includes a selectively permeable air separating membrane device (20, 120) that produces the oxygen-enriched air (permeate) as well as nitrogen-enriched air (retentate). The oxygen-enriched air being so produced can be introduced into the exhaust system (16, 116) (a) into an exhaust duct (168) extending from an exhaust manifold (28, 128) of the engine (10, 110), (b) into the exhaust manifold (28, 128) of the engine (10, 110), or (c) into a polluant reducing device (130) that is mounted in line with the exhaust duct (128) of the engine's exhaust system (116). The nitrogen-enriched air being produced by the permeable membrane device (20) can be used to further reduce NOx by being mixed with air being supplied to an intake manifold (12) of the engine (10) or by being introduced into a plasma device (32) to generate monatomic nitrogen that is injected in the exhaust gases to react with NOx in those gases.
PCT/US1999/027425 1998-11-24 1999-11-19 Method and apparatus to reduce engine exhaust emissions WO2000031386A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19879098A 1998-11-24 1998-11-24
US09/198,790 1998-11-24

Publications (2)

Publication Number Publication Date
WO2000031386A1 WO2000031386A1 (en) 2000-06-02
WO2000031386A8 true WO2000031386A8 (en) 2000-10-12

Family

ID=22734861

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/027425 WO2000031386A1 (en) 1998-11-24 1999-11-19 Method and apparatus to reduce engine exhaust emissions

Country Status (1)

Country Link
WO (1) WO2000031386A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003014542A1 (en) * 2001-08-08 2003-02-20 Innovationen Zur Verbrennungstechnik Gmbh Method for reducing emissions and saving fuel during the operation of internal combustion engines
KR100592981B1 (en) * 2002-01-21 2006-06-23 주식회사 셈테크놀러지 Method for abatement of hazardous gases and hybrid system therefor
US7455046B2 (en) 2005-08-30 2008-11-25 U Chicago Argonne Llc Nitrogen enriched combustion of a natural gas internal combustion engine to reduce NOx emissions
NO327898B1 (en) * 2007-03-22 2009-10-19 Ecoxy As NOx reduction on marine diesel engines
FR2926597A1 (en) * 2008-01-18 2009-07-24 Renault Sas Exhaust gas treatment system for e.g. oil engine, in motor vehicle, has compressed gas supplying duct supplying compressed gas from reservoir to separation module, where module having membrane provides oxygen-deficient gas to engine
US10458373B2 (en) 2017-12-20 2019-10-29 Tenneco Automotive Operating Company Inc. System including oxygen separation device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4864320A (en) * 1971-12-10 1973-09-06
US4902309A (en) * 1987-06-24 1990-02-20 Hempenstall George T Improved method for the ignition and combustion of particulates in diesel exhaust gases
US4867766A (en) * 1988-09-12 1989-09-19 Union Carbide Corporation Oxygen enriched air system
US5526641A (en) * 1993-02-18 1996-06-18 The University Of Chicago NOx reduction method
US5640845A (en) * 1993-02-18 1997-06-24 The University Of Chicago Nitrogen spark denoxer
DE4404681C1 (en) * 1994-02-15 1995-05-04 Bosch Gmbh Robert System and method for reducing pollutants in combustion exhaust gases
US5517978A (en) * 1994-06-20 1996-05-21 Rockwell International Corporation Pollution control system for an internal combustion engine

Also Published As

Publication number Publication date
WO2000031386A1 (en) 2000-06-02

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