Title:
CATALYST FOR DECOMPOSING NITROGEN OXIDE AND METHOD FOR REMOVING NITROGEN OXIDE
Document Type and Number:
Japanese Patent JPH05115784
Kind Code:
A
Abstract:
PURPOSE: To provide a method for decomposing nitrogen oxides in exhaust gas without a redactant to prevent pollution, and to provide a new catalyst for the method.
CONSTITUTION: A catalyst containing at least one kind of carbide of W, Ti, Ta, or Si as a component for decomposing NOx is brought in to contact with exhaust gas at 200-l000°C to decompose NOx. Since NOx can be decomposed on the catalyst in the absence of a reductant into harmless compounds, NOx in the exhaust gas not containing reducing gases, to which conventional catalysts can hardly be applied, can be removed easily.
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Inventors:
TATE TAKAHIRO
KISHIDA YOSHIO
YAMASHITA HISAO
KISHIDA YOSHIO
YAMASHITA HISAO
Application Number:
JP27758291A
Publication Date:
May 14, 1993
Filing Date:
October 24, 1991
Export Citation:
Assignee:
HITACHI LTD
BABCOCK HITACHI KK
BABCOCK HITACHI KK
International Classes:
B01D53/94; B01J27/22; (IPC1-7): B01D53/36; B01J27/22
Attorney, Agent or Firm:
Akio Takahashi (1 person outside)