Process and apparatus for processing a gas stream and especially for processing a flue gas stream
US-2015375164-A1 · Dec 31, 2015 · US
Method and device for treating ammonia in gasification system
US9174166B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9174166-B2 |
| Application number | US-201013505583-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2010 |
| Priority date | Nov 9, 2009 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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Abstract
Official abstract text for this publication.
Ammonia off-gas, which is separated and recovered by an ammonia recovery device from gasification gas produced in a gasification furnace in a two-column gasification system, is injected as reducing agent for denitration into an inlet of a cyclone for separation of bed material heated in a combustion furnace from combustion exhaust gas and for returning the bed material to the gasification furnace. The ammonia off-gas is contacted with the high-temperatured combustion exhaust gas to reduce and remove NO x through non-catalytic decomposition. Any excess of the ammonia off-gas is distributed for burning to primary air to the combustion furnace.
First claim
Opening claim text (preview).
The invention claimed is: 1. A device for treating ammonia in a gasification system having a gasification furnace for gasifying raw material into gasification gas through formation of a fluidized bed of bed material by introduction of a gasifying agent, a combustion furnace for blowing up by a primary air the bed material guided from said gasification furnace together with unreacted char to heat the bed material by burning of said char, a cyclone for separating the bed material hea…
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Classifications
Chemistry & Metallurgy · mapped topic
- B01D53/56Primary
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9174166B2 cover?
- Ammonia off-gas, which is separated and recovered by an ammonia recovery device from gasification gas produced in a gasification furnace in a two-column gasification system, is injected as reducing agent for denitration into an inlet of a cyclone for separation of bed material heated in a combustion furnace from combustion exhaust gas and for returning the bed material to the gasification furna…
- Who is the assignee on this patent?
- Matsuzawa Yoshiaki, Ohara Hiroaki, Hamada Koki, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B01D53/56. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).