• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SU1233786A3
    申请号:SU823502657
    申请日:1982-10-19
    公开日:1986-05-23
    发明作者:Райнер ДОМЕСЛЕ；Херберт Фелькер；Эдгар Коберштайн；Ханс-Дитер Плетка
    申请人:Дегусса Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to methods for removing soot and condensate droplets formed during the combustion of diesel fuel, and can be used in the operation of diesel engines.
    The purpose of the invention is to reduce the soot ignition temperature.
    FIG. Figure 1 shows the afterburning temperature and pressure drop curves during the lifetime of the filter activated according to the proposed method for one cycle; FIG. 2 shows the curves of diesel soot ignition temperatures and pressure drops after soot afterburning for the activated filter by the proposed method and for the activated filter.
    Example 1. Making mono vanadate silver.
    In a beaker with heating in 1.5 liters, 234 g (1 mol) are dissolved and 178.5 g (1.05 mol) of AgNOj are added in 250 ml with stirring to 250 ml. Silver monovanadate, which has an intense orange color, immediately precipitates. The precipitate is filtered off and washed twice with 1 l BUT, then the sushi residue: at in an oven at 80 C.
    As a catalyst, all silver vanadates are applicable.
    PRI R e p 2. Drawing on the filter
    Silver vanadate can be precipitated on a heat-resistant carrier or mixed with this carrier. In particular, oxides of aluminum, silicon, titanium, zirconium and rare earth metals can be used as a carrier material. one
    Silver vanadate or its combination with a carrier can be applied to a filter element that slips off a strukturny amplifier. As a structural amplifier, well-known filtering systems for exhaust gases can be used, in which the channels supplying and discharging exhaust gases are arranged in such a way that, with the maximum possible filtering capacity, the pressure loss is minimized; a cross-section of a casing provided with a channel through which exhaust gases escape. As a structural amplifier, a gasket made of metal or mineral fiber that is resistant to heating or another filter element can be used. It is especially advantageous to use a monolithic ceramic element permeated with numerous conductive flow channels that have plugs at opposite ends, so that the conduit that has a plug at one end is open at the opposite end. Such a filter element is in the form of a conventional monolithic structural catalyst enhancer and may be made of oi-alumina or cordierite. The channels through which the flow moves have macroporous walls that serve as filtering surfaces. To ensure this, the channel is open at one end and closed at the opposite end by a plug made in the form of a ceramic plug that is either sintered with the material of the monolith or glued with refractory glue. These plugs are installed in such a way that the closed end of the channel is opposite to the open end. Therefore, the exhaust gases are forced to seep through the macroporous walls of the channels, and diesel soot is delayed.
    75 g of silver vanadate prepared in Example 1 is distributed in 250 ml, ground in a ball mill for 15 hours, and then the resulting suspension is diluted with 800 ml of HgO. A monolithic cordierite filter element having a diameter of 1.85 cm, a length of 15.5 cm and 15.5 cells per square centimeter is treated with a dilute suspension, whereby silver vanadate is deposited on the filter: element. After that, the excess suspension is removed and the filter with the catalyst applied on it is dried for 3 hours at 300 C. At that, the absorption of silver vanadate is about 35 g. Compared with the uncoated Cc Filter, the filter coated with catalyst 5 has a slightly higher backpressure pressure. . The change in backpressure pressure under constant conditions is shown in the table.
    Example 3. Technical testing.
    The active filter manufactured according to Example 2 is installed in the exhaust stream of a diesel engine and its ability to filter and lower the ignition temperatures of diesel soot is tested.
    The test parameters are as follows: 4-cylinder diesel engine with direct injection (1.6-liter cylinder capacity, 40 kW power); during the filtering phase of soot, the load is 72 N (about 400 ° C before the filter); the number of revolutions is 2100 min and the oxygen content in the exhaust gas is 10% by volume during the afterburning phase, the revolutions are 3000 min, the load is 75 N (before the filter) or up to 80 N (570 C before the filter); the oxygen content in the exhaust gas is 5% by volume.
    During the soot filtering phase, the filter passes exhaust gas until the pressure difference is
    Aianutwoton NGO "ittwry
    Memaut fftt / aqa,
    V75
    O 2 f S 8 10 11 111 IS rt Wren (h) fi.2
    Editor N. Dankulich
    Compiled by G.Vinokurova Tehred I.Popovich
    2786/59
    Circulation 663 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    Um t
     will reach 150 mbar. For the afterburning phase, a speed of 3,000 minutes and a load are set. Starting with 72H, it is continuously adjusted in ascending order. The pressure drop due to the increased speed and temperature temporarily increased dramatically up to 300 mbar.
    While with an inactivated filter the pressure drop at an engine speed of 3000 minutes and a load of about 80N remains at 200 mbar, when the filter is activated according to the invention, it drops for a very short time (about 1.2 minutes) to below 100 mbar. To demonstrate the reliability of individual measurements, one after the other several consecutive cycles of capturing and afterburning are performed using the same filter (Fig. 2).
    15
    The activation carried out in accordance with the proposed method reduces the ignition temperature of diesel soot by 50 ° C compared with the non-activated catalyst and adnurously contributes to its complete combustion. After 6 hours of operation of the filter with deposited silver vanadate, the soot ignition temperature is -497 ° C.
    - iP fall
    Pperatiro.
    Kennohththtat
    Corrector S.Cherni
    权利要求:
    Claims (1)
    [1]
    METHOD FOR REMOVING SOOT FROM EXHAUST GASES OF DIESEL ENGINES. including the capture of soot and its burning by passing through a filter with a supported catalyst, which is a compound of silver with heat and in order to change the torus, silver vanadium is used.
    transition metal oxide; and with that. that, lowering the temperature, take off, as catalysis— Pressure drop --- Temperature in front of the activated filter
    Time (h) £ 700 'δ £ 00 $ | 500 I W & M & O 00 M 00
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1233786A3|1986-05-23|Method of removing soot from gases of diesel engines
    SU1530083A3|1989-12-15|Method of removing soot from exhaust gases of diesel engines
    CN100383366C|2008-04-23|Ceramic honeycomb filter and exhaust gas-cleaning method
    US4828807A|1989-05-09|Method for the purification of exhaust gas from diesel motors
    KR100605005B1|2006-07-28|Catalytic soot filter and use thereof in treatment of lean exhaust gases
    EP0341832B1|1996-01-10|Treatment of diesel exhaust gas
    US4631076A|1986-12-23|Apparatus for removing carbon particles from exhaust gas from internal combustion engine
    US20060234858A1|2006-10-19|Silicon carbide based catalyst material and method for preparation thereof
    KR20030078780A|2003-10-08|Particle filter having a catalytically active coating to accelerate burning off accumulated soot particle during a repeneration phase
    US5884474A|1999-03-23|Method and catalyst unit for treating diesel engine exhaust
    CN103962133A|2014-08-06|Exhaust gas purification catalyst
    JPH07114902B2|1995-12-13|Filter for removing combustible particles and nitrogen oxides
    JPS58119317A|1983-07-15|Filter device for removal of combustible fine particles
    JPH09267040A|1997-10-14|Catalyst for purifying exhaust gas
    JP2007229643A|2007-09-13|Catalytic body and catalyst device using the same
    CN109312648B|2021-01-29|Particulate filter for combustion engine
    JPS5791726A|1982-06-08|Exhaust gas filter for internal-combustion engine
    KR100701331B1|2007-03-29|Oxidation Catalyst for Removing the Fine Soot Particulates of Exhaust Gas and Method Thereof
    RU2065980C1|1996-08-27|Device for cleaning exhaust gases of diesel engine from hard particles
    JPS58143815A|1983-08-26|Filter for exhaust gas
    KR100196318B1|1999-06-15|Smoke reduction apparatus
    SU423318A3|1974-04-05|ROTATING REGENERATOR
    JPH086579B2|1996-01-24|Diesel exhaust gas purification equipment
    JPH0623532B2|1994-03-30|Filter for collecting Patty quilts
    JPH05184928A|1993-07-27|Exhaust gas purifying material and method for purifying exhaust gas
    同族专利:
    公开号 | 公开日
    US4455393A|1984-06-19|
    ES8307120A1|1983-06-16|
    DE3141713A1|1983-05-11|
    EP0077524A1|1983-04-27|
    JPH0262302B2|1990-12-25|
    EP0077524B1|1986-01-15|
    BR8206060A|1983-09-13|
    AT17445T|1986-02-15|
    DE3268582D1|1986-02-27|
    ES516671A0|1983-06-16|
    MX167329B|1993-03-17|
    JPS5884042A|1983-05-20|
    CA1192893A|1985-09-03|
    US4477417A|1984-10-16|
    DE3141713C2|1989-09-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1900383A|1931-06-01|1933-03-07|Selden Co|Contact sulphuric acid process|
    US2881214A|1957-12-17|1959-04-07|Standard Oil Co|Process for the conversion of acrolein and methacrolein to the corresponding unsaturated acids|
    US3249558A|1962-08-31|1966-05-03|Exxon Research Engineering Co|Method for the preparation of vanadium catalysts|
    FR2242142B3|1973-08-28|1976-07-30|Benakis Achille|
    FR2430916B1|1978-07-13|1981-10-02|Inst Francais Du Petrole|
    DE2944841C2|1979-11-07|1987-08-13|Degussa Ag, 6000 Frankfurt, De|
    DE2951316A1|1979-12-20|1981-07-02|Degussa Ag, 6000 Frankfurt|CATALYTIC FILTER FOR DIESEL EXHAUST CLEANING|
    US4303552A|1980-05-27|1981-12-01|W. R. Grace & Co.|Diesel exhaust catalyst|DE3232729C2|1982-09-03|1989-11-23|Degussa Ag, 6000 Frankfurt, De|
    DE3407172C2|1984-02-28|1986-09-04|Degussa Ag, 6000 Frankfurt|Device for cleaning exhaust gases from diesel engines|
    JPH07106290B2|1984-04-23|1995-11-15|エンゲルハード・コーポレーシヨン|Diesel Exhaust Particle Filter|
    US4510265A|1984-05-04|1985-04-09|Engelhard Corporation|Platinum/silver vanadate catalyzed diesel exhaust particulate filter|
    EP0174495B1|1984-08-08|1989-04-19|Nippon Shokubai Kagaku Kogyo Co., Ltd|Catalyst for purifying diesel engine exhaust gases|
    WO1989003720A1|1987-10-23|1989-05-05|Massachusetts Institute Of Technology|Methods and devices for gas cleaning|
    JPH01159029A|1987-12-16|1989-06-22|Toyota Motor Corp|Exhaust gas purification apparatus of diesel engines|
    DE3940758C2|1989-12-09|1993-07-08|Degussa Ag, 6000 Frankfurt, De|
    WO1993010886A1|1991-11-26|1993-06-10|Engelhard Corporation|Ceria-alumina oxidation catalyst and method of use|
    CA2124439A1|1991-11-26|1993-06-10|Kenneth E. Voss|Oxidation catalyst and method of use|
    DE4213018C1|1992-04-21|1993-12-09|Degussa|Catalyst for the oxidative purification of exhaust gases from diesel engines|
    US6248684B1|1992-11-19|2001-06-19|Englehard Corporation|Zeolite-containing oxidation catalyst and method of use|
    EP0628706A3|1993-06-10|1995-01-04|Inco Ltd|
    FR2714717B1|1993-12-31|1996-03-22|Rhone Poulenc Chimie|Process for the oxidation of unburnt hydrocarbons.|
    US5580535A|1994-07-07|1996-12-03|Engelhard Corporation|System and method for abatement of food cooking fumes|
    US5710088A|1995-06-30|1998-01-20|Ford Global Technologies, Inc.|Lean-NOx catalysts containing silver supported on alumina|
    EP0761938B1|1995-08-30|2002-03-27|Haldor Topsoe A/S|Method and catalyst unit for treating diesel engine exhaust|
    DE19923781C2|1999-05-22|2001-04-26|Degussa|Method and device for removing soot from the exhaust gas of a diesel engine|
    CA2423591A1|2000-09-29|2002-04-04|Omg Ag & Co. Kg|Catalytic soot filter and use thereof in treatment of lean exhaust gases|
    DE10048511A1|2000-09-29|2002-04-18|Omg Ag & Co Kg|Reduction of carbon monoxide, hydrocarbons and soot particles in lean exhaust gas from internal combustion engine, by using particle filter having catalytic coating of oxygen storage component and platinum group metal|
    US6474319B1|2000-10-17|2002-11-05|Cummins Engine Company, Inc.|Filter system for the removal of hydrocarbon deposits from a cooled exhaust gas recirculating engine|
    FR2816357B1|2000-11-03|2003-02-07|Peugeot Citroen Automobiles Sa|ASSISTANCE SYSTEM FOR THE REGENERATION OF A PARTICLE FILTER INTEGRATED IN AN EXHAUST SYSTEM OF A VEHICLE DIESEL ENGINE|
    FR2816356B1|2000-11-03|2003-06-20|Peugeot Citroen Automobiles Sa|SYSTEM FOR AIDING THE REGENERATION OF A PARTICLE FILTER INTEGRATED IN AN EXHAUST LINE OF A DIESEL ENGINE OF A MOTOR VEHICLE|
    US7138358B2|2001-11-13|2006-11-21|Sud-Chemie Inc.|Catalyzed diesel particulate matter filter with improved thermal stability|
    US6613299B2|2001-11-13|2003-09-02|Sud-Chemie Prototech, Inc.|Catalyzed diesel particulate matter exhaust filter|
    US6976353B2|2002-01-25|2005-12-20|Arvin Technologies, Inc.|Apparatus and method for operating a fuel reformer to provide reformate gas to both a fuel cell and an emission abatement device|
    US6959542B2|2002-01-25|2005-11-01|Arvin Technologies, Inc.|Apparatus and method for operating a fuel reformer to regenerate a DPNR device|
    DE10214343A1|2002-03-28|2003-10-09|Omg Ag & Co Kg|Filter for removing particulates from diesel engine exhaust gas has a catalytic coating comprising barium and magnesium compounds and a platinum-group metal|
    AU2003228608A1|2002-04-24|2003-11-10|Arvin Technologies, Inc.|Apparatus and method for regenerating a particulate filter of an exhaust system of an internal combustion engine|
    US20040020447A1|2002-08-05|2004-02-05|William Taylor|Method and apparatus for advancing air into a fuel reformer by use of an engine vacuum|
    US20040020191A1|2002-08-05|2004-02-05|Kramer Dennis A.|Method and apparatus for advancing air into a fuel reformer by use of a turbocharger|
    US20040020188A1|2002-08-05|2004-02-05|Kramer Dennis A.|Method and apparatus for generating pressurized air by use of reformate gas from a fuel reformer|
    AU2003258039A1|2002-08-12|2004-02-25|Arvin Technologies, Inc.|Apparatus and method for controlling the oxygen-to-carbon ratio of a fuel reformer|
    DE10242303A1|2002-09-12|2004-03-18|Robert Bosch Gmbh|Automotive diesel engine exhaust system has a soot particle filter module preceded by a NOx storage module|
    DE10308287B4|2003-02-26|2006-11-30|Umicore Ag & Co. Kg|Process for exhaust gas purification|
    US20040216378A1|2003-04-29|2004-11-04|Smaling Rudolf M|Plasma fuel reformer having a shaped catalytic substrate positioned in the reaction chamber thereof and method for operating the same|
    US7465690B2|2003-06-19|2008-12-16|Umicore Ag & Co. Kg|Methods for making a catalytic element, the catalytic element made therefrom, and catalyzed particulate filters|
    US6991668B2|2003-09-26|2006-01-31|Towsley Frank E|Diesel soot filter|
    WO2005035951A1|2003-10-08|2005-04-21|The Lubrizol Corporation|System containing oxygen enriched diesel particulate filter and method thereof|
    US7285247B2|2003-10-24|2007-10-23|Arvin Technologies, Inc.|Apparatus and method for operating a fuel reformer so as to purge soot therefrom|
    US7244281B2|2003-10-24|2007-07-17|Arvin Technologies, Inc.|Method and apparatus for trapping and purging soot from a fuel reformer|
    US7332454B2|2005-03-16|2008-02-19|Sud-Chemie Inc.|Oxidation catalyst on a substrate utilized for the purification of exhaust gases|
    US7776280B2|2005-05-10|2010-08-17|Emcon Technologies Llc|Method and apparatus for selective catalytic reduction of NOx|
    DE102007034633A1|2007-04-05|2009-01-29|Nano-X Gmbh|Coating material with a catalytic activity and use of the coating material|
    US8475755B2|2009-08-21|2013-07-02|Sub-Chemie Inc.|Oxidation catalyst and method for destruction of CO, VOC and halogenated VOC|
    GB201100595D0|2010-06-02|2011-03-02|Johnson Matthey Plc|Filtration improvements|
    EP3296015A1|2016-09-15|2018-03-21|Treibacher Industrie AG|Use of vanadates in oxidation catalysts|
    CN111794830B|2020-08-06|2021-07-23|南京棠邑科创服务有限公司|Purifier of automobile exhaust particulate matter and harmful gas|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3141713A|DE3141713C2|1981-10-21|1981-10-21|
    [返回顶部]