JPS5658524A - Waste gas treating method of incineration furnace or the like - Google Patents

Waste gas treating method of incineration furnace or the like

Info

Publication number
JPS5658524A
JPS5658524A JP13415979A JP13415979A JPS5658524A JP S5658524 A JPS5658524 A JP S5658524A JP 13415979 A JP13415979 A JP 13415979A JP 13415979 A JP13415979 A JP 13415979A JP S5658524 A JPS5658524 A JP S5658524A
Authority
JP
Japan
Prior art keywords
hcl
tower
admitted
exhaust gas
reacting
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
JP13415979A
Other languages
Japanese (ja)
Inventor
Akira Kofuchi
Tatsuhiko Hashimoto
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.)
Mitsubishi Kakoki Kaisha Ltd
Original Assignee
Mitsubishi Kakoki Kaisha 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 Mitsubishi Kakoki Kaisha Ltd filed Critical Mitsubishi Kakoki Kaisha Ltd
Priority to JP13415979A priority Critical patent/JPS5658524A/en
Publication of JPS5658524A publication Critical patent/JPS5658524A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To perform the removal of HCl economically by heating and decomposing the NH4Cl of the product of reaction then capturing the HCl by Ca-base compound and regenerating NH3 or NH4OH at the time of removing the HCl contained in the exhaust gas of a combustion furnace by means of NH3 or NH4OH.
CONSTITUTION: The exhaust gas from a waste incineration furnace A is passed through heat exchangers C, D to recover sensible heat, after which it is admitted into a reacting tower E. In this reacting tower E, NH3 is admitted from the lower part and NH4OH water G is sprayed from the upper part to convert the HCl contained in the exhaust gas to NH4Cl. This is put into an electric dust collector H, where it is captured of incineration ash and NH4Cl and this put into a rotary kiln I and is heated to ≥(300W338°C). The NH4Cl is again decomposed to HCl and NH3 and the incineration ash is put into an ash reservoir J. The mixed gases are admitted into a packed tower K. The HCl reacts with the CaO, CaCO3, Ca(OH)2 etc. in the tower K and is removed as CaCl2L. The NH3 is used by being circulated again to the reacting tower E; therefore, the removal of the HCl is accomplished at low costs.
COPYRIGHT: (C)1981,JPO&Japio
JP13415979A 1979-10-19 1979-10-19 Waste gas treating method of incineration furnace or the like Pending JPS5658524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13415979A JPS5658524A (en) 1979-10-19 1979-10-19 Waste gas treating method of incineration furnace or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13415979A JPS5658524A (en) 1979-10-19 1979-10-19 Waste gas treating method of incineration furnace or the like

Publications (1)

Publication Number Publication Date
JPS5658524A true JPS5658524A (en) 1981-05-21

Family

ID=15121834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13415979A Pending JPS5658524A (en) 1979-10-19 1979-10-19 Waste gas treating method of incineration furnace or the like

Country Status (1)

Country Link
JP (1) JPS5658524A (en)

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