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EP0147751A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for eliminating nitrogen oxides from exhaust gases

Assignee: Sued Chemie AG
•
Filing: 1984-12-15
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Granted: —
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Expires: 2004-12-15
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Abstract

Abstract Translated from German Verfahren zur Entfernung von Stickoxiden aus Abgasen, insbesondere aus Schwefeloxide enthaltenden Abgasen, durch katalytische Reduktion; als Reduktionsmittel wird ein durch katalytische Zersetzung bzw. durch Wasserdampf-Reformierung von Methanol erhaltenes Gasgemisch mit den Abgasen vermischt und über einen Katalysator geleitet, an welchem die Stickoxide zu Stickstoff reduziert werden. Nach der ersten Variante wird mit üblichen Katalysatoren oberhalb 300°C, nach der zweiten Variante mit neuen Katalysatoren unterhalb 300°C gearbeitet. Process for the removal of nitrogen oxides from exhaust gases, in particular from exhaust gases containing sulfur oxides, by catalytic reduction; as the reducing agent, a gas mixture obtained by catalytic decomposition or by water vapor reforming of methanol is mixed with the exhaust gases and passed over a catalyst, on which the nitrogen oxides are reduced to nitrogen. According to the first variant, work is carried out with conventional catalysts above 300 ° C., and according to the second variant with new catalysts below 300 ° C.

Inventors

  • 👤 Michael Dr. Schneider
  • 👤 Karl Dr. Kochloefl
  • 👤 Ditmar Dr. Prigge

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 16:49
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/024; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01D53/8621; B01D53/8625; B01D53/92; B01D53/94; B01D53/9404; B01D53/9409; B01D53/9413; B01D53/9418; B01J23/00; B01J23/38; B01J23/40; B01J23/54; B01J23/56; B01J23/63; B01D2251/00; B01D2251/20; B01D2251/21; B01D2255/00; B01D2255/10; B01D2255/102; B01D2255/20; B01D2255/206; B01D2255/2063; B01D2255/2065; B01D2255/207; B01D2255/20707; B01D2255/20715; B01D2255/20761

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