二次燃焼排気を用いて含水尿素（尿素水溶液）をアンモニア蒸気に気化させるシステムおよび方法
- 专利权人:
- 发明人:
- 申请号：
- JP20120538030
- 公开号：
- JP5735973(B2)
- 申请日:
- 2010.11.05
- 申请国别(地区):
- 日本
- 年份:
- 2015
- 代理人:
- 摘要：
The present invention is a combustion system employing a urea-to-ammonia vapor reactor system. The urea-to-ammonia reactor housing enclosed in a bypass flow duct that receives a secondary flue gas stream at a split point from a main flue gas stream containing nitrogen oxides (NOx) emanating from a boiler. The bypass flow duct allows the secondary flue gas stream to flow past the enclosed reactor housing where injected aqueous urea in atomized or non-atomized form, is gasified to ammonia vapor. The resulting gaseous mixtures of ammonia, its by-products and the secondary flue gas stream subsequently rejoin the main stream, before the main flue gases are treated through a Selective Catalytic Reduction (SCR) reactor apparatus. A residence time of the secondary stream within the bypass flow duct, which may be increased by a recirculation loop, enables effective conversion of urea to ammonia to be used in the SCR apparatus.
- 来源网站：
- 中国工程科技知识中心
