JPS5333975A - Lowering method for concentration of nitrogen monoxide in exhaust gas - Google Patents

Lowering method for concentration of nitrogen monoxide in exhaust gas

Info

Publication number
JPS5333975A
JPS5333975A JP10920676A JP10920676A JPS5333975A JP S5333975 A JPS5333975 A JP S5333975A JP 10920676 A JP10920676 A JP 10920676A JP 10920676 A JP10920676 A JP 10920676A JP S5333975 A JPS5333975 A JP S5333975A
Authority
JP
Japan
Prior art keywords
exhaust gas
concentration
nitrogen monoxide
lowering method
hno
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
JP10920676A
Other languages
Japanese (ja)
Inventor
Yoji Hayasaka
Yoshitoshi Sekiguchi
Noboru Okigami
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP10920676A priority Critical patent/JPS5333975A/en
Publication of JPS5333975A publication Critical patent/JPS5333975A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To lower effectively the concentration of NO in the exhaust gas, by contacting the exhaust gas containing NO with alcohols, aldehydes, formic acid or H2O2 in the presence of O2 and then by absorbing NO2, (HNO)2, HNO2, etc. converted from NO by the above process with the treating solution containing urea.
COPYRIGHT: (C)1978,JPO&Japio
JP10920676A 1976-09-09 1976-09-09 Lowering method for concentration of nitrogen monoxide in exhaust gas Pending JPS5333975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10920676A JPS5333975A (en) 1976-09-09 1976-09-09 Lowering method for concentration of nitrogen monoxide in exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10920676A JPS5333975A (en) 1976-09-09 1976-09-09 Lowering method for concentration of nitrogen monoxide in exhaust gas

Publications (1)

Publication Number Publication Date
JPS5333975A true JPS5333975A (en) 1978-03-30

Family

ID=14504280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10920676A Pending JPS5333975A (en) 1976-09-09 1976-09-09 Lowering method for concentration of nitrogen monoxide in exhaust gas

Country Status (1)

Country Link
JP (1) JPS5333975A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626417A (en) * 1983-09-29 1986-12-02 Union Oil Company Of California Methods for chemically reducing nitrogen oxides
US4780289A (en) * 1987-05-14 1988-10-25 Fuel Tech, Inc. Process for nitrogen oxides reduction and minimization of the production of other pollutants
US4844878A (en) * 1985-10-04 1989-07-04 Fuel Tech, Inc. Process for the reduction of nitrogen oxides in an effluent
US5017347A (en) * 1987-02-13 1991-05-21 Fuel Tech, Inc. Process for nitrogen oxides reduction and minimization of the production of other pollutants
US5057293A (en) * 1987-02-13 1991-10-15 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US5240689A (en) * 1989-06-19 1993-08-31 Noell, Inc. Process using two-stage boiler injection for reduction of nitrogen
KR100451285B1 (en) * 2001-07-12 2004-10-06 박현 The reduction method of nitrogen oxides and sulfur oxides using hydrogen peroxide solution and calcium oxide solution

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626417A (en) * 1983-09-29 1986-12-02 Union Oil Company Of California Methods for chemically reducing nitrogen oxides
US4844878A (en) * 1985-10-04 1989-07-04 Fuel Tech, Inc. Process for the reduction of nitrogen oxides in an effluent
US5017347A (en) * 1987-02-13 1991-05-21 Fuel Tech, Inc. Process for nitrogen oxides reduction and minimization of the production of other pollutants
US5057293A (en) * 1987-02-13 1991-10-15 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US4780289A (en) * 1987-05-14 1988-10-25 Fuel Tech, Inc. Process for nitrogen oxides reduction and 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
KR100451285B1 (en) * 2001-07-12 2004-10-06 박현 The reduction method of nitrogen oxides and sulfur oxides using hydrogen peroxide solution and calcium oxide solution

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