JPS55139819A - Purifying method of gas containing cyanides and nitrogen oxides - Google Patents
Purifying method of gas containing cyanides and nitrogen oxidesInfo
- Publication number
- JPS55139819A JPS55139819A JP4723479A JP4723479A JPS55139819A JP S55139819 A JPS55139819 A JP S55139819A JP 4723479 A JP4723479 A JP 4723479A JP 4723479 A JP4723479 A JP 4723479A JP S55139819 A JPS55139819 A JP S55139819A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- exhaust gas
- gas
- oxide
- cyanides
- 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
- 150000002825 nitriles Chemical class 0.000 title abstract 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title 3
- 239000007789 gas Substances 0.000 title 1
- 239000003054 catalyst Substances 0.000 abstract 6
- 239000000126 substance Substances 0.000 abstract 2
- 229910017945 Cu—Ti Inorganic materials 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
PURPOSE: To reduce cyanides and NOx contents efficiently to be free from pollution, by allowing the gas containing cyanides and NOx to contact with a catalyst consisting essentially of oxide of Cr or Cu and Ti oxide at elevated temperature.
CONSTITUTION: Exhaust gas 1 is passed through a heat exchanger 2 and is introduced into a reactor 3 filled with catalyst consisting essentially of Ti oxide and Cr or Cu oxide. Cyanides and NOx in the exhaust gas are caused to react on said catalyst to reduce these harmful components to be free from pollution. When the temperature of exhaust gas 1 is low, the exhaust gas temperature is raised by means of an auxiliary burner using auxiliary fuel 4 such as heavy oil. When the exhaust gas 1 contains combustible substances such as CO and hydrocarbons besides said components, the gas is introduced into a reactor 3' filled with a catalyst for complete oxidation, and the combustible substances in the gas are burnt completely to purify the gas. Meanwhile, the contact temperature within the reactor 3 may be 450°C or less in the case of Cr-Ti catalyst, or about 350°C or less in the cast of Cu-Ti catalyst.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4723479A JPS55139819A (en) | 1979-04-19 | 1979-04-19 | Purifying method of gas containing cyanides and nitrogen oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4723479A JPS55139819A (en) | 1979-04-19 | 1979-04-19 | Purifying method of gas containing cyanides and nitrogen oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55139819A true JPS55139819A (en) | 1980-11-01 |
Family
ID=12769514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4723479A Pending JPS55139819A (en) | 1979-04-19 | 1979-04-19 | Purifying method of gas containing cyanides and nitrogen oxides |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55139819A (en) |
-
1979
- 1979-04-19 JP JP4723479A patent/JPS55139819A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2149035A1 (en) | Method for reducing harmful emissions from a diesel engine equipped with a particulate trap | |
| JPS5314662A (en) | Method for decreasing nitrogen oxides concentration of combustion exhaust gas | |
| JPS55165132A (en) | Removing method for nitrogen oxide | |
| JPS55139819A (en) | Purifying method of gas containing cyanides and nitrogen oxides | |
| JPS53100317A (en) | Exhaust purifying process and system in internal combustion engine | |
| JPS546859A (en) | Denitrating method for exhaust gas containing co | |
| JPS5374616A (en) | Purifier for exhaust gas of internal combustion | |
| JPS52129667A (en) | Lowering concentration of nitrogen oxides contained in combustion exhaust gas | |
| JPS5315259A (en) | Denitrating method for exhaust gas from sintering equipment | |
| JPS538361A (en) | Decreasing method for no# in combustion gas from high temperature furnace | |
| JPS5433889A (en) | Metal catalyst for use in exhaust gas denitration | |
| JPS5237590A (en) | Method of preparing nox reduction catalyst | |
| JPS53146991A (en) | Exhaust gas purification catalyst | |
| SE8004737L (en) | PROCEDURE FOR CONVERSION OF CARBON MONOXIDE, CARBON AND NITROGEN OXIDES IN THE EXHAUST GAS FROM A COMBUSTION ENGINE | |
| JPS549026A (en) | Double step combustion device | |
| JPS5450471A (en) | Treating method for nitrogen oxides contained in exhaust gas | |
| JPS52124522A (en) | Gasoline internal combustion engine | |
| JPS5229487A (en) | Oxidation catalyst | |
| JPS5289560A (en) | Removal of nitrogen oxides | |
| JPS5314221A (en) | Method of and apparatus for controlling exhaust gas purifying means | |
| JPS548188A (en) | Air purification catalyst and air purifier using the same | |
| JPS56110507A (en) | Purifying device for exhaust gas | |
| JPS52122266A (en) | Reduction of concentration of nitrogen oxides in exhaust gas of combustion | |
| JPS5229482A (en) | Heat resisting oxidation catalyst | |
| JPS5285059A (en) | Removal of nitrogen oxides from combustion waste gas |