JPS5477278A - Concurrent removal of nitrogen oxides and sulfur oxides in combuster exhaust gas - Google Patents

Concurrent removal of nitrogen oxides and sulfur oxides in combuster exhaust gas

Info

Publication number
JPS5477278A
JPS5477278A JP14466277A JP14466277A JPS5477278A JP S5477278 A JPS5477278 A JP S5477278A JP 14466277 A JP14466277 A JP 14466277A JP 14466277 A JP14466277 A JP 14466277A JP S5477278 A JPS5477278 A JP S5477278A
Authority
JP
Japan
Prior art keywords
combuster
exhaust gas
oxides
added
contact
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
JP14466277A
Other languages
Japanese (ja)
Inventor
Naoyuki Todo
Minoru Kurita
Hiroyuki Hagiwara
Akishi Ueno
Akio Nishijima
Toshio Sato
Yoshimichi Kiyozumi
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP14466277A priority Critical patent/JPS5477278A/en
Publication of JPS5477278A publication Critical patent/JPS5477278A/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

  • Chimneys And Flues (AREA)
  • Treating Waste Gases (AREA)
  • Catalysts (AREA)

Abstract

PURPOSE: To perform concurrently denitrification and desulfurization simply and with high effficiency by the procedure in which NH3 is added to combuster exhaust gas containing NOx and SOx, and then brough into contact with solid catalyst capable of selectively reducing NOx even in an oxidation atmosphere and also of selectively oxidizing and absorbing SO2.
CONSTITUTION: NH3 as much as more than 0.8 times the concentration of NOx, e.g., approx. 0.8 to 1.5 times, is added to the exhaust gas from combuster containing NOx and SOx, and then the gas is brought into contact with a catalyst layer composed of oxides obtained by burning the carbonate of Co, Mn, Cu, or Fe under the condition of a temperature range from 320 to 360°C and a space volocity of 5000 to 10000 hr-1 to concurrently remove NOx and SOx. With this method, it is possible to lengthen the life of catalyst, reduce the number of exchange, and obviate the need for installing both dentrification apparatus and desulfurization apparatus.
COPYRIGHT: (C)1979,JPO&Japio
JP14466277A 1977-12-02 1977-12-02 Concurrent removal of nitrogen oxides and sulfur oxides in combuster exhaust gas Pending JPS5477278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14466277A JPS5477278A (en) 1977-12-02 1977-12-02 Concurrent removal of nitrogen oxides and sulfur oxides in combuster exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14466277A JPS5477278A (en) 1977-12-02 1977-12-02 Concurrent removal of nitrogen oxides and sulfur oxides in combuster exhaust gas

Publications (1)

Publication Number Publication Date
JPS5477278A true JPS5477278A (en) 1979-06-20

Family

ID=15367297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14466277A Pending JPS5477278A (en) 1977-12-02 1977-12-02 Concurrent removal of nitrogen oxides and sulfur oxides in combuster exhaust gas

Country Status (1)

Country Link
JP (1) JPS5477278A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4975463A (en) * 1972-09-01 1974-07-22
JPS50152974A (en) * 1974-05-30 1975-12-09
JPS5162181A (en) * 1974-11-29 1976-05-29 Nippon Steel Corp
JPS5171265A (en) * 1974-12-17 1976-06-19 Hitachi Shipbuilding Eng Co
JPS51138575A (en) * 1975-05-28 1976-11-30 Sumitomo Heavy Ind Ltd Process for r emoval of nitrogen exides and sulfur oxides in exhaust gas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4975463A (en) * 1972-09-01 1974-07-22
JPS50152974A (en) * 1974-05-30 1975-12-09
JPS5162181A (en) * 1974-11-29 1976-05-29 Nippon Steel Corp
JPS5171265A (en) * 1974-12-17 1976-06-19 Hitachi Shipbuilding Eng Co
JPS51138575A (en) * 1975-05-28 1976-11-30 Sumitomo Heavy Ind Ltd Process for r emoval of nitrogen exides and sulfur oxides in exhaust gas

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