JPS5330975A - Decreasing method for nitrogen oxides concentration of combustion exhaust gas - Google Patents

Decreasing method for nitrogen oxides concentration of combustion exhaust gas

Info

Publication number
JPS5330975A
JPS5330975A JP10494876A JP10494876A JPS5330975A JP S5330975 A JPS5330975 A JP S5330975A JP 10494876 A JP10494876 A JP 10494876A JP 10494876 A JP10494876 A JP 10494876A JP S5330975 A JPS5330975 A JP S5330975A
Authority
JP
Japan
Prior art keywords
exhaust gas
nitrogen oxides
combustion exhaust
oxides concentration
decreasing method
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
Application number
JP10494876A
Other languages
Japanese (ja)
Inventor
Tadao Kuze
Shigeru Kaito
Takeshi Sonoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP10494876A priority Critical patent/JPS5330975A/en
Publication of JPS5330975A publication Critical patent/JPS5330975A/en
Pending legal-status Critical Current

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  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To increase NOx removal ratio and to decrease the quantity of unreacted NH3 sharply so as to prevent secondary environmental pollution by making the flow of NOcontaining gas contact with NH3, and then with O2-containing hydrocarbon in two stages, both in the presence of sufficient O2.
COPYRIGHT: (C)1978,JPO&Japio
JP10494876A 1976-09-03 1976-09-03 Decreasing method for nitrogen oxides concentration of combustion exhaust gas Pending JPS5330975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10494876A JPS5330975A (en) 1976-09-03 1976-09-03 Decreasing method for nitrogen oxides concentration of combustion exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10494876A JPS5330975A (en) 1976-09-03 1976-09-03 Decreasing method for nitrogen oxides concentration of combustion exhaust gas

Publications (1)

Publication Number Publication Date
JPS5330975A true JPS5330975A (en) 1978-03-23

Family

ID=14394309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10494876A Pending JPS5330975A (en) 1976-09-03 1976-09-03 Decreasing method for nitrogen oxides concentration of combustion exhaust gas

Country Status (1)

Country Link
JP (1) JPS5330975A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549130A (en) * 1978-10-03 1980-04-09 Nippon Sheet Glass Co Ltd Removing method for nitrogen oxide in exhaust gas
US4777024A (en) * 1987-03-06 1988-10-11 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
JPS6447427A (en) * 1987-08-17 1989-02-21 Mitsubishi Heavy Ind Ltd Method for reducing nitrogen oxides in exhaust gas of internal combustion engine
US4844878A (en) * 1985-10-04 1989-07-04 Fuel Tech, Inc. Process for the reduction of nitrogen oxides in an effluent
US4873066A (en) * 1988-06-15 1989-10-10 Fuel Tech, Inc. Low temperature process for the reduction of nitrgen oxides in an effluent
US4902488A (en) * 1987-05-14 1990-02-20 Fuel Tech, Inc. Process for nitrogen oxides reduction with minimization of the production of other pollutants
US5240689A (en) * 1989-06-19 1993-08-31 Noell, Inc. Process using two-stage boiler injection for reduction of nitrogen
US5312605A (en) * 1991-12-11 1994-05-17 Northeastern University Method for simultaneously removing SO2 and NOX pollutants from exhaust of a combustion system
CN1047413C (en) * 1995-02-27 1999-12-15 三菱麻铁里亚尔硅材料株式会社 Single crystal ingot and its producing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549130A (en) * 1978-10-03 1980-04-09 Nippon Sheet Glass Co Ltd Removing method for nitrogen oxide in exhaust gas
US4844878A (en) * 1985-10-04 1989-07-04 Fuel Tech, Inc. Process for the reduction of nitrogen oxides in an effluent
US4777024A (en) * 1987-03-06 1988-10-11 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US4902488A (en) * 1987-05-14 1990-02-20 Fuel Tech, Inc. Process for nitrogen oxides reduction with minimization of the production of other pollutants
JPS6447427A (en) * 1987-08-17 1989-02-21 Mitsubishi Heavy Ind Ltd Method for reducing nitrogen oxides in exhaust gas of internal combustion engine
US4873066A (en) * 1988-06-15 1989-10-10 Fuel Tech, Inc. Low temperature process for the reduction of nitrgen oxides in an effluent
US5240689A (en) * 1989-06-19 1993-08-31 Noell, Inc. Process using two-stage boiler injection for reduction of nitrogen
US5312605A (en) * 1991-12-11 1994-05-17 Northeastern University Method for simultaneously removing SO2 and NOX pollutants from exhaust of a combustion system
CN1047413C (en) * 1995-02-27 1999-12-15 三菱麻铁里亚尔硅材料株式会社 Single crystal ingot and its producing method

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