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公开(公告)号：JPH03221147A
公开(公告)日：1991-09-30
申请号：JP19934890
申请日：1990-07-30
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , BRAND REINHOLD , ENGLER BERND , HONNEN WOLFGANG , KOBERSTEIN EDGAR
Abstract: PURPOSE: To form a catalyst for purifying exhaust gases capable of selectively reducing nitrogen oxides by supporting specific amounts of oxides of Ti, Sn, Be or the like and oxides, sulfates or the like of Fe and V on a honeycomb carrier. CONSTITUTION: This catalyst for purifying exhaust gases is obtained by molding a honeycomb carrier consisting of about 2-70 wt.% of CeO2 and 0-20 wt.% of ZrO2 as well as optional iron oxides, alkaline earth metal oxides and/or aluminum oxide of the transition column containing rare earth metal oxides and then, supporting catalytic components of Pt and/or Pd, optionally Rh on the honeycomb carrier. The harmful substances such as nitrogen oxides, hydrocarbons, carbon monoxide, ammonia slip from denitrification and sulfur dioxide contained in the exhaust gases are purified by bringing the exhaust gases into contact with the catalyst mentioned above.
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公开(公告)号：ZA912800B
公开(公告)日：1992-01-29
申请号：ZA912800
申请日：1991-04-15
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , STEPHAN BLUMRICH , HONNEN WOLFGANG , WOLFGANG HONNEN , ENGLER BERND , BERND ENGLER , KOBERSTEIN EDGAR , EDGAR KOBERSTEIN
IPC: B01J21/06 , B01D53/86 , B01J23/22 , B01J27/053 , B01J37/04 , C01B17/48 , C01B17/79 , B01D , B28B , B01J , C04B
Abstract: A complete catalyst for the oxidation of SO2 in O2-containing gas streams contains vanadium oxide and alkali metal oxide or alkali metal sulphate as active substance, silicon and/or aluminium in the oxide form to increase the surface area and TiO2 in the form of anatase and/or rutile as support material and ceramic binder. The metals in these finely particulate sintered components, performing discrete functions, are present in defined atomic ratios. The finely particulate sintering is carried out by a production process principally by means of diverse drying, calcination and sintering conditions. The main area of application of the invention is the desulphurisation of waste gases from combustion processes and industrial plants.
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公开(公告)号：DE4413404A1
公开(公告)日：1995-10-19
申请号：DE4413404
申请日：1994-04-18
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , ENGLER BERND DR , NIEMANN-WEBER ANDREAS DR
Abstract: Catalytic decomposition of N2O in gas into the elements involves passing the gas at elevated temp. over a catalyst contg. catalytically active components on an oxide support with a large surface area. The novel features is that the support is a zeolite and the active component is gp. VIII metal(s).
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公开(公告)号：DE4313897C1
公开(公告)日：1995-03-02
申请号：DE4313897
申请日：1993-04-28
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , HOFEN WILLI , PRESCHER GUENTER DR
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公开(公告)号：DE4215582C1
公开(公告)日：1993-12-16
申请号：DE4215582
申请日：1992-05-12
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , ENGLER BERND DR , KUNZE LUTZ , LAUBENSTEIN STEPHAN , PELDSZUS ERIK , MUELLER HERBERT DR
Abstract: The invention relates to a catalyst for the low-temperature denitrification of exhaust gases (flue gases). A DENOX catalyst known per se can have its activity with respect to the denitrification of exhaust gases at low temperatures significantly improved by being made hydrophobic.
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Patent Agency Ranking
公开(公告)号：CA2095938A1
公开(公告)日：1993-11-13
申请号：CA2095938
申请日：1993-05-11
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , ENGLER BERND , KUNZE LUTZ , LAUBENSTEIN STEPHAN , PELDSZUS ERIK , MUELLER HERBERT
Abstract: The object of the invention is a catalyst for the removal of nitrogen from flue gases at low temperatures. The activity of a DENOX catalyst which is known per se in terms of removal of nitrogen from flue gases at low temperatures can be improved by rendering it hydrophobic, e.g.; by coating with Teflon TM. eg (T1O2/WO3/V2O5)
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公开(公告)号：IN175826B
公开(公告)日：1995-09-16
申请号：IN270CA1991
申请日：1991-04-08
Applicant: DEGUSSA
Inventor： HONNEN WOLFGANG , BLUMRICH STEPHAN , ENGLER BERND , KOBERSTEIN EDGAR
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公开(公告)号：ZA9102800B
公开(公告)日：1992-01-29
申请号：ZA9102800
申请日：1991-04-15
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , STEPHAN BLUMRICH , HONNEN WOLFGANG , WOLFGANG HONNEN , ENGLER BERND , BERND ENGLER , KOBERSTEIN EDGAR , EDGAR KOBERSTEIN
IPC: B01J21/06 , B01D53/86 , B01J23/22 , B01J27/053 , B01J37/04 , C01B17/48 , C01B17/79 , B01D , B01J , B28B , C04B
CPC classification number: C01B17/79 , B01D53/8609 , B01J23/22
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公开(公告)号：DE3929297A1
公开(公告)日：1991-01-31
申请号：DE3929297
申请日：1989-09-04
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , BRAND REINHOLD , ENGLER BERND , HONNEN WOLFGANG , KOBERSTEIN EDGAR
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10.发明专利
公开(公告)号：CA2122321A1
公开(公告)日：1994-10-29
申请号：CA2122321
申请日：1994-04-27
Applicant: DEGUSSA
Inventor： BLUMRICH STEPHAN , HOFEN WILLI , PRESCHER GUENTER
IPC: B01D53/14 , B01D53/50 , B01D53/56 , B01D53/86 , B01D53/94 , C01B17/74 , C01B17/76 , C01B17/88 , B01D53/36
Abstract: The invention relates to an advantageous further development of a process for purifying flue gases which contain oxides of nitrogen and sulphur from a combustion plant by selective catalytic reduction of the nitrogen oxides, subsequent catalytic oxidation of sulphuric dioxide with oxygen to give sulphur trioxide and washing the sulphur trioxide out of the flue gases as aqueous sulphuric acid. The further development according to the invention relates to concentrating the aqueous sulphuric acid to more than 95 wt. % strength sulphuric acid.
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