JPS5451970A - Denitration method from gas containing sulphur oxide and nitrogen oxide - Google Patents

Denitration method from gas containing sulphur oxide and nitrogen oxide

Info

Publication number
JPS5451970A
JPS5451970A JP11830877A JP11830877A JPS5451970A JP S5451970 A JPS5451970 A JP S5451970A JP 11830877 A JP11830877 A JP 11830877A JP 11830877 A JP11830877 A JP 11830877A JP S5451970 A JPS5451970 A JP S5451970A
Authority
JP
Japan
Prior art keywords
nox
catalyst layer
gas containing
oxide
temp
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
JP11830877A
Other languages
Japanese (ja)
Inventor
Katsunori Shimazaki
Shigeru Haseba
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP11830877A priority Critical patent/JPS5451970A/en
Publication of JPS5451970A publication Critical patent/JPS5451970A/en
Pending legal-status Critical Current

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  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE: To prolong life expectancy, by preventing the corrosion of an apparatus by making the temp of a catalyst layer to be the precipitation temp of (Acidic) (NH4)2SO4 and by segregating SOx and NOx in the catalyst layer when NOx is catalytically reduced by using HN3 to gas containing SOx and NOx.
CONSTITUTION: When NOx is catalytically reduced by adding NH3 to gas containing SOx and NOx as a reducing agent, the temp of a catalyst layer is made ot be not more than approx. 300°C -preferably, not more than approx. 280°C. Consequently, (Acidic) (NH4)2SO4 is segregation attached into the catalyst layer, thus preventing the precipitation of these salt after the catalyst layer. This method can operated a denitration device efficiently. and stably for a long term
COPYRIGHT: (C)1979,JPO&Japio
JP11830877A 1977-09-30 1977-09-30 Denitration method from gas containing sulphur oxide and nitrogen oxide Pending JPS5451970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11830877A JPS5451970A (en) 1977-09-30 1977-09-30 Denitration method from gas containing sulphur oxide and nitrogen oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11830877A JPS5451970A (en) 1977-09-30 1977-09-30 Denitration method from gas containing sulphur oxide and nitrogen oxide

Publications (1)

Publication Number Publication Date
JPS5451970A true JPS5451970A (en) 1979-04-24

Family

ID=14733459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11830877A Pending JPS5451970A (en) 1977-09-30 1977-09-30 Denitration method from gas containing sulphur oxide and nitrogen oxide

Country Status (1)

Country Link
JP (1) JPS5451970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5486474A (en) * 1977-12-23 1979-07-10 Hitachi Ltd Treating method for exhaust gas containing nitrogen oxides

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106362A (en) * 1976-03-04 1977-09-06 Hitachi Ltd Decomposition of nitrogen oxides by catalytic reduction
JPS5343669A (en) * 1976-10-04 1978-04-19 Babcock Hitachi Kk Dry type denitrating method in low temperature
JPS53117672A (en) * 1977-03-24 1978-10-14 Babcock Hitachi Kk Treating method for exhaust gas

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106362A (en) * 1976-03-04 1977-09-06 Hitachi Ltd Decomposition of nitrogen oxides by catalytic reduction
JPS5343669A (en) * 1976-10-04 1978-04-19 Babcock Hitachi Kk Dry type denitrating method in low temperature
JPS53117672A (en) * 1977-03-24 1978-10-14 Babcock Hitachi Kk Treating method for exhaust gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5486474A (en) * 1977-12-23 1979-07-10 Hitachi Ltd Treating method for exhaust gas containing nitrogen oxides

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