JPS54137495A - Waste gas cleaning catalyst - Google Patents
Waste gas cleaning catalystInfo
- Publication number
- JPS54137495A JPS54137495A JP4478678A JP4478678A JPS54137495A JP S54137495 A JPS54137495 A JP S54137495A JP 4478678 A JP4478678 A JP 4478678A JP 4478678 A JP4478678 A JP 4478678A JP S54137495 A JPS54137495 A JP S54137495A
- Authority
- JP
- Japan
- Prior art keywords
- waste gas
- chloride
- cleaning catalyst
- catalyst
- ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: Catalytic components of Pt, Rh and chloride of a specific element are incorporated into a carrier to provide a waste gas NOx cleaning catalyst highly effective oxidation atmsphere as well as reducing atmosphere.
CONSTITUTION: A carrier such as cordierite is incorporated with 0.01 to 5 wt%, particulay 0.03 to 1 wt% of Pt and Rh, and a chloride of element selected from a specific proportion of Ca, Mg, Ba, Mn, Fe, etc. to provide a waste gas cleaning catalyst. A preferable amount of such chloride component is 5 to 500, particularly 50 to 20 moles per one atom as converted metal of Pt and Rh carried material in total. A preferable atomic ratio of Pt:Rh is 1:0.01W40, particuraly 1:0.1W20. Such catalyst is effective in high cleaning ratio, simultaneous removal of NOx including toxic gas such as CO, HC, etc. from waste gas, without decreasing fuel cost ratio of internal combustion engines.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4478678A JPS54137495A (en) | 1978-04-18 | 1978-04-18 | Waste gas cleaning catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4478678A JPS54137495A (en) | 1978-04-18 | 1978-04-18 | Waste gas cleaning catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54137495A true JPS54137495A (en) | 1979-10-25 |
Family
ID=12701083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4478678A Pending JPS54137495A (en) | 1978-04-18 | 1978-04-18 | Waste gas cleaning catalyst |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54137495A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03254836A (en) * | 1990-01-12 | 1991-11-13 | Ngk Spark Plug Co Ltd | Poisoning-preventive catalyst and carrier with poisoning-preventive layer, exhaust gas purification device and poisoning-preventive gasoline composition |
JPH0463141A (en) * | 1990-06-28 | 1992-02-28 | Ngk Spark Plug Co Ltd | Production of carrir having poisoning preventive layer, and production of catalyst having poisoning preventive layer |
-
1978
- 1978-04-18 JP JP4478678A patent/JPS54137495A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03254836A (en) * | 1990-01-12 | 1991-11-13 | Ngk Spark Plug Co Ltd | Poisoning-preventive catalyst and carrier with poisoning-preventive layer, exhaust gas purification device and poisoning-preventive gasoline composition |
JPH0463141A (en) * | 1990-06-28 | 1992-02-28 | Ngk Spark Plug Co Ltd | Production of carrir having poisoning preventive layer, and production of catalyst having poisoning preventive layer |
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