US2001018033A1PendingUtilityA1

NOx removal system for boilers

Priority: Feb 28, 2000Filed: Feb 12, 2001Published: Aug 30, 2001

Est. expiryFeb 28, 2020(expired)· nominal 20-yr term from priority

Inventors:Satoshi Wakasa Noboru Takubo Yukihiro Isshiki Kouichi Masuda Nobuyuki Ishizaki

B01D 53/8625

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References

Claims

Abstract

The invention provides a NOx removal system for use in a boiler for realizing further reduction in NOx. Loading means for loading a reducing agent is provided at the outlet of a gas passageway in the boiler body, and a NOx removal catalyst is provided downstream of the loading means.

Claims

exact text as granted — not AI-modified

What is claimed is:  
     
         1 . A NOx removal system for use in a boiler, comprising: loading means serving for loading a reducing agent and provided at an outlet of a gas passageway in a boiler body; and a NOx removal catalyst provided downstream of the loading means.  
     
     
         2 . The NOx removal system for use in a boiler as claimed in    claim 1   , wherein the reducing agent is ammonia.  
     
     
         3 . The NOx removal system for use in a boiler as claimed in    claim 1   , wherein the reducing agent is urea water itself or ammonia obtained by decomposing urea water.  
     
     
         4 . The NOx removal system for use in a boiler as claimed in    claim 1   , wherein the loading means operates to load the reducing agent toward its upstream side.

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