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公开(公告)号:JPH11128728A
公开(公告)日:1999-05-18
申请号:JP25099498
申请日:1998-09-04
Applicant: ABB RESEARCH LTD
Inventor: ELIASSON BALDUR DR , KOGELSCHATZ ULRICH DR
IPC: B01J19/08 , B01J35/04 , C01B3/34 , C01B3/38 , C01B13/11 , C07C29/152 , C07C29/154
Abstract: PROBLEM TO BE SOLVED: To provide a mechanically stable electric discharge reactor easy to be manufactured by employing at least a firm block of a continuously foamed material as a dielectric filling material for an electric discharge gap between a pair of electrodes. SOLUTION: This electric discharge reactor comprises a first electrode 1 and a second electrode 2 and a voltage supply source 3 installed adjacently to the electrodes 1, 2. The gap between the electrodes 1, 2 is filled with one layer of a filling material which is a firm and continuously foamed material and the filling material has a function of a dielectric body capable of suppressing micro electric discharge. The continuously foamed material is preferably formed into a solid block 4 shape to be installed between the electrodes 1, 2. Consequently, when a gas flows through the gap between the electrodes 1, 2 in the direction shown as an arrow, a desired chemical reaction is induced in the pores of the block 4 by flowing silent discharge to treat a gas and isolate desired products.
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公开(公告)号:JPH11240701A
公开(公告)日:1999-09-07
申请号:JP37023198
申请日:1998-12-25
Applicant: ABB RESEARCH LTD
Inventor: ELIASSON BALDUR DR , KOGELSCHATZ ULRICH DR , ZHOU LI-MING DR
Abstract: PROBLEM TO BE SOLVED: To sufficiently and excellently maintain the volume ratio of a synthetic gas, capable of previously being set at the outlet side of a liquid vessel after- connected when effectively obtaining a fuel and/or the fuel for a power from undesirable green house gas and a hydrogen-containing gas or vapor. SOLUTION: This method for producing a synthetic gas including an H2 -CO- gas mixture from an inlet gas 7 containing a CH4 -CO2 -gas mixture by conducting the CH4 -CO2 -gas mixture into a discharging reactor 1, and operating the gas- discharging device on a dielectric substance 2 by a weak electric current from an alternating electric source 9 in the discharging reaction vessel comprises regulating a content V of CO2 of the formula V=[CO2 /(CO2 +CH4 )].100 according to a prescribed function corresponding to a synthesized gas volume ratio R of H2 /CO capable of being previously set, and the belonging function value capable of being drawn out therefrom is deviated within ±20%.
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公开(公告)号:DE19751984A1
公开(公告)日:1999-05-27
申请号:DE19751984
申请日:1997-11-24
Applicant: ABB RESEARCH LTD
Inventor: EGLI WALTER , KOGELSCHATZ ULRICH DR
Abstract: In an incineration plant, effluent gases are cleaned prior to release, via an electrostatic filter. The electrostatic filter has electrodes which are part-cleaned at intervals during normal operation, by the brief application of a supplementary electrical pulse. The direct current electrode receives a supplementary pulse of direct current which overlays the normal voltage, but which is not so great as to form a corona discharge.
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公开(公告)号:DE4314510A1
公开(公告)日:1994-11-10
申请号:DE4314510
申请日:1993-05-03
Applicant: ABB RESEARCH LTD
Inventor: KOGELSCHATZ ULRICH DR , MATTER DANIEL ANDRE
Abstract: In the process for generating ozone from air, the air is exposed to the radiation from an incoherent Xe2 or ArCl excimer irradiator having a wavelength around 172 nm. In this way, only the oxygen is at least partially converted into ozone, and no undesired nitrogen oxides are formed. Ozone prepared by this process can be used in many applications, in particular for environmental monitoring instrumentation.
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公开(公告)号:DE19717495A1
公开(公告)日:1998-10-29
申请号:DE19717495
申请日:1997-04-25
Applicant: ABB RESEARCH LTD
Inventor: EGLI WALTER DR , KOGELSCHATZ ULRICH DR
Abstract: In a method for mixing two fluid flows containing differing vapours and/or gases comprises directing the flows together around one or more electrodes (16, 21), and applying a high voltage (V). This produces a corona discharge. Also claimed is the corresponding equipment.
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公开(公告)号:DE19611332A1
公开(公告)日:1997-09-25
申请号:DE19611332
申请日:1996-03-22
Applicant: ABB RESEARCH LTD
Inventor: KOGELSCHATZ ULRICH DR
Abstract: The process for conditioning waste gases comprises reacting SO3 with the waste gas and removing the particles in the waste gas in an electrostatic filter (3). The waste gas is fed through a gas discharge path (4) before it enters the filter (3). The gas discharge path has electrodes arranged across the waste gas stream, which are connected to a high voltage source (8). At least one of the electrodes, preferably high voltage electrodes (6), is provided with a dielectric (8), in which are produced OH radicals from the water vapour in the waste gas, which react with the SO2 in the waste gas to form SO3. The novelty is that the electrodes (5,6) are provided with a catalytic coating (9) on the surfaces facing the waste gas channel (2).
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公开(公告)号:DE19605547A1
公开(公告)日:1997-08-21
申请号:DE19605547
申请日:1996-02-15
Applicant: ABB RESEARCH LTD
Inventor: BILL ALAIN , ELIASSON BALDUR DR , KILLER ERIC , KOGELSCHATZ ULRICH DR
Abstract: Direct production of methanol from oxygen and a methane-containing gas (preferably natural gas) is effected by passing the mixture through a silent electric discharge gap (15) bounded on one side by a dielectric (14) having an electrode (16) facing away from the gap (15) and there being e.g. a metal tube (11) on the other side of the gap serving as a second electrode. The methane-containing gas is mixed with O2 and N2 or with an O2 - and/or N2 -containing gas or with compounds releasing O2 and/or N2 and is fed to a gap (15) which is supplied with an approximately sinusoidal alternating voltage.
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公开(公告)号:DE4339611A1
公开(公告)日:1994-10-06
申请号:DE4339611
申请日:1993-11-20
Applicant: ABB RESEARCH LTD
Inventor: KOGELSCHATZ ULRICH DR
Abstract: The device for removing dust from exhaust gases of furnaces and combustion engines comprises charging electrodes and in each case has collecting electrodes (1, 2) arranged on both sides thereof which, between them, define an exhaust gas duct (3). For the purpose of charging the particles and precipitating them, electrodes which are constructed and supplied in different ways are provided which alternate in the exhaust gas duct. Electrodes (4) made of a dielectric and connected to an alternating-current (a.c.) source serve for charging, high-voltage electrodes (5) connected to a direct-current (d.c.) voltage source serve for precipitation (collection). As a result of the functions of charging and precipitation being separated, homogeneous charging of the particles in the entire volume flow is achieved, together with high rates of precipitation.
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公开(公告)号:DE4338017A1
公开(公告)日:1994-10-06
申请号:DE4338017
申请日:1993-11-08
Applicant: ABB RESEARCH LTD
Inventor: KOGELSCHATZ ULRICH DR
Abstract: In the device for removing dust from exhaust gases of furnaces and combustion engines, which contains negative brushing electrodes (spraying electrodes) (4a, 4b) and in each case has collecting electrodes (1, 2) arranged on both sides thereof which, between them, define an exhaust gas duct (3), the exhaust gas to be freed of dust is directed essentially perpendicular to the brushing electrodes. A high-voltage source (10, 11) connected to the brushing electrodes is connected to the brushing electrodes and to the collecting electrodes, and generates the electric field, necessary for the precipitation of dust, in the exhaust gas duct. In order to increase the collection efficiency (capturing efficiency, filtration efficiency), the spraying electrodes (4a, 4b) can be connected in sets to a high-voltage source (10, 11), each brushing electrode of the one set (4a) being arranged between a brushing electrode of the other set(s).
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公开(公告)号:DE19739181A1
公开(公告)日:1999-03-11
申请号:DE19739181
申请日:1997-09-08
Applicant: ABB RESEARCH LTD
Inventor: ELIASSON BALDUR DR , KOGELSCHATZ ULRICH DR
IPC: B01J19/08 , B01J35/04 , C01B3/34 , C01B3/38 , C01B13/11 , C07C29/152 , C07C29/154 , C01B3/00 , B03C3/04 , H05H1/48 , C07C31/04 , C07C29/153
Abstract: A discharge reactor includes two electrodes (1, 2) with a gap between them. This gap is filled by an insulator (5) and a block (4) of rigid open pored material. Also claimed is the use of such a reactor to generate O3, CH3OH or synthesis gas.
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