JPS5554075A - Fly-ash treatment - Google Patents

Fly-ash treatment

Info

Publication number
JPS5554075A
JPS5554075A JP12689578A JP12689578A JPS5554075A JP S5554075 A JPS5554075 A JP S5554075A JP 12689578 A JP12689578 A JP 12689578A JP 12689578 A JP12689578 A JP 12689578A JP S5554075 A JPS5554075 A JP S5554075A
Authority
JP
Japan
Prior art keywords
ash
fly
ammonia
treatment
heating furnace
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
JP12689578A
Other languages
Japanese (ja)
Inventor
Naoyuki Takahashi
Makoto Kikuchi
Yataro Ishibashi
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP12689578A priority Critical patent/JPS5554075A/en
Publication of JPS5554075A publication Critical patent/JPS5554075A/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)
  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE: To effect a treatment free from secondary pollution and to recover fly-ash, by decomposing collected ash which contains ammonia and sulfur compounds using heat medium to be followed by heat treatment.
CONSTITUTION: Heat medium from the heat medium heating furnace 8 is used for thermal decomposition of fly-ash which is discharged from a treatment system for waste gas from a coal fired boiler or the like, and containing ammonia and sulfur compounds such as sulfuric acid. The treatment vaporizes ammonia and SO3, which returns to the heating furnace 8 to allow fly-ash to be recovered. In the heating furnace 8, the returned waste gas is heated to high temperature range of 700W1000°C permitting ammonia to be decomposed into nitrogen and SO3 to be reduced to SO2. In this simple manner, fly-ash is treated for recovery without the chance to cause secondary pollution.
COPYRIGHT: (C)1980,JPO&Japio
JP12689578A 1978-10-17 1978-10-17 Fly-ash treatment Pending JPS5554075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12689578A JPS5554075A (en) 1978-10-17 1978-10-17 Fly-ash treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12689578A JPS5554075A (en) 1978-10-17 1978-10-17 Fly-ash treatment

Publications (1)

Publication Number Publication Date
JPS5554075A true JPS5554075A (en) 1980-04-21

Family

ID=14946521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12689578A Pending JPS5554075A (en) 1978-10-17 1978-10-17 Fly-ash treatment

Country Status (1)

Country Link
JP (1) JPS5554075A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012268A1 (en) * 1999-08-17 2001-02-22 Wisconsin Electric Power Company Ammonia removal from fly ash

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012268A1 (en) * 1999-08-17 2001-02-22 Wisconsin Electric Power Company Ammonia removal from fly ash

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