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公开(公告)号:DE3779887D1
公开(公告)日:1992-07-23
申请号:DE3779887
申请日:1987-12-17
Applicant: BASF AG
Inventor: MROSS WOLF DIETER DR , DREWS RONALD DR , SCHEIDSTEGER OLAF DR , HESS KLAUS DR , SCHACHNER HELMUT DR
Abstract: In NOx removal from waste gases from coal combustion by selective catalytic redn. with ammonia in the presence of TiO2-based catalysts contg. catalytically effective amounts of oxides of V, W and/or Mo, the novelty is that the catalysts have a BET specific surface of 5-60 (pref. 10-50) sq.m./g., a pore vol. of 0.15-0.40 ml/g. and max. 35 (pref. max. 20)% content of pores with less than 200 Angstroms dia.
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公开(公告)号:AT77256T
公开(公告)日:1992-07-15
申请号:AT87118715
申请日:1987-12-17
Applicant: BASF AG
Inventor: MROSS WOLF DIETER DR , DREWS RONALD DR , SCHEIDSTEGER OLAF DR , HESS KLAUS DR , SCHACHNER HELMUT DR
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公开(公告)号:DE59102216D1
公开(公告)日:1994-08-25
申请号:DE59102216
申请日:1991-02-21
Applicant: BASF AG
Inventor: DREWS RONALD DR , HOELDERICH WOLFGANG DR , SCHEIDSTEGER OLAF DR , NETH NORBERT DR
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公开(公告)号:DE4116364A1
公开(公告)日:1992-11-19
申请号:DE4116364
申请日:1991-05-18
Applicant: BASF AG
Inventor: HESS KLAUS DR , MORSBACH BERND , DREWS RONALD DR , BUECHELE WOLFGANG DR , SCHACHNER HELMUT DR
IPC: B01D53/86 , B01D53/94 , B01J27/053
Abstract: Catalyst containing metallic oxides, which in addition to oxides of titanium and/or zirconium, oxides of vanadium and/or niobium and oxides of molybdenum, tungsten and/or chromium, also contains sulphates of the alkaline earth metals, and which is used in a process for the oxidative breakdown of organic compounds in the waste gases from incinerator plants.
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公开(公告)号:DE3866535D1
公开(公告)日:1992-01-09
申请号:DE3866535
申请日:1988-12-21
Applicant: BASF AG
Inventor: AGAR DAVID DR , RUPPEL WILHELM DR , HOELDERICH WOLFGANG DR , DREWS RONALD DR
Abstract: Removal of NOx from waste gas (I) by selective redn. with NH3 is carried out in a reaction zone in the presence of catalysts, (I) being supplieo to the reaction zone continuously and the NH3 at intervals. The novel features are a) the direction of (I) is reversed periodically; b) NH3 is added at the start of each period in excess of the stoichoimetric amt. for redn. of NOx; c) the NH3 supply is cut off before unreacted NH3 leaves the reaction zone with (I); and d) the (I) flow is reversed as soon as the NOx and/or NH3 content of (I) leaving the reaction zone exceeds a predetermined value.
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公开(公告)号:DE59203011D1
公开(公告)日:1995-08-31
申请号:DE59203011
申请日:1992-04-24
Applicant: BASF AG
Inventor: HESS KLAUS DR , MORSBACH BERND , DREWS RONALD DR , BUECHELE WOLFGANG DR , SCHACHNER HELMUT DR
IPC: B01D53/86 , B01D53/94 , B01J27/053
Abstract: Catalyst containing metallic oxides, which in addition to oxides of titanium and/or zirconium, oxides of vanadium and/or niobium and oxides of molybdenum, tungsten and/or chromium, also contains sulphates of the alkaline earth metals, and which is used in a process for the oxidative breakdown of organic compounds in the waste gases from incinerator plants.
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公开(公告)号:DE59101230D1
公开(公告)日:1994-04-28
申请号:DE59101230
申请日:1991-07-30
Applicant: BASF AG
Inventor: DREWS RONALD DR , SCHEIDSTEGER OLAF DR , BUECHELE WOLFGANG DR , HESS KLAUS DR , SCHACHNER HELMUT DR
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公开(公告)号:DE3871447D1
公开(公告)日:1992-07-02
申请号:DE3871447
申请日:1988-07-01
Applicant: BASF AG
Inventor: HOELDERICH WOLFGANG DR , SCHEIDSTEGER OLAF DR , DREWS RONALD DR , MROSS WOLF DIETER DR , HESS KLAUS DR , SCHACHNER HELMUT DR
Abstract: In the removal of NOx from waste gases by selection redn. with NH3 in the presence of zeolites as catalysts, Fe silicate zeolites (I) are used as catalysts. (I) is of the pentasil type and pref. is in the H form. (I) pref. is doped with gp. IB, IIB, IVB, VB, VIB, VIIB and/or VIII transition metal(s) and/or rare earth metal(s).
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公开(公告)号:DE4006918A1
公开(公告)日:1991-09-12
申请号:DE4006918
申请日:1990-03-06
Applicant: BASF AG
Inventor: DREWS RONALD DR , HOELDERICH WOLFGANG DR , SCHEIDSTEGER OLAF DR , NETH NORBERT DR
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公开(公告)号:DE3644461A1
公开(公告)日:1988-07-07
申请号:DE3644461
申请日:1986-12-24
Applicant: BASF AG
Inventor: MROSS WOLF DIETER DR , DREWS RONALD DR , SCHEIDSTEGER OLAF DR , SCHACHNER HELMUT DR , HESS KLAUS DR
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