JPS6411688A - Treating method for ash with ammonium salt - Google Patents
Treating method for ash with ammonium saltInfo
- Publication number
- JPS6411688A JPS6411688A JP62166044A JP16604487A JPS6411688A JP S6411688 A JPS6411688 A JP S6411688A JP 62166044 A JP62166044 A JP 62166044A JP 16604487 A JP16604487 A JP 16604487A JP S6411688 A JPS6411688 A JP S6411688A
- Authority
- JP
- Japan
- Prior art keywords
- ash
- ammonium salt
- grains
- ammonia
- treating
- 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
Links
Landscapes
- Processing Of Solid Wastes (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE:To treat coal ash of a large quantity, by adding a given volume of water or hot water into collected ash with ammonium salt, kneading the same into grains of given grain diameter and then treating the same under the normal pressure water vapor flow, prescribed temperature and relative humidity. CONSTITUTION:Exhaust gas generated out of a coal-fired boiler is treated by means of a denitration device of ammonia contact reduction type. Then, water of 10-50pts.wt. or hot water of 60-98 deg.C to ash of 100pts.wt. is added to the ash with ammonium salt, dust-collected, and trapped, and the mixture is kneaded into grains of 0.5-50mm particle diameter and pH 9 or more. Then, ammonia is stripped by treating said grains under the normal pressure water vapor flow of 100% relative humidity at 60-100 deg.C. Also an alkali substance such as lime, magnesia, etc., having mol. equivalent or more than adhered ammonia salt can be added to the ash with ammonium salt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166044A JPS6411688A (en) | 1987-07-02 | 1987-07-02 | Treating method for ash with ammonium salt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166044A JPS6411688A (en) | 1987-07-02 | 1987-07-02 | Treating method for ash with ammonium salt |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6411688A true JPS6411688A (en) | 1989-01-17 |
Family
ID=15823910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62166044A Pending JPS6411688A (en) | 1987-07-02 | 1987-07-02 | Treating method for ash with ammonium salt |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6411688A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07187660A (en) * | 1991-10-24 | 1995-07-25 | Von Roll Ag | Recovery of ammonia from flue gas residual dross |
-
1987
- 1987-07-02 JP JP62166044A patent/JPS6411688A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07187660A (en) * | 1991-10-24 | 1995-07-25 | Von Roll Ag | Recovery of ammonia from flue gas residual dross |
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