Second Generation Advanced Reburning for High Efficiency NOx Control

Payne, Roy ; Swanson, Lary ; Marquez, Antonio ; Chang, Ary ; Zamansky, Vladimir M. ; Maly, Pete M. ; Lissianski, Vitali V.

Energy & Env Research Corp

关键词: Nitrogen Oxides;    Boilers;    Exhaust Gases;    Urea;    Recycling;   

DOI  :  10.2172/910162
RP-ID  :  None
RP-ID  :  AC22-95PC95251
RP-ID  :  910162

美国|英语

来源: UNT Digital Library

【 摘 要 】

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning (SGAR) which has the potential to achieve 90+% NO{sub x} control in coal-fired boilers at a significantly lower cost than SCR. The twelfth reporting period in Phase II (July 3-October 15, 2000) included design validation AR-Lean tests (Task No.2.6) in the 10 x 10{sup 6} Btu/hr Tower Furnace. The objective of tests was to determine the efficiency of AR-Lean at higher than optimum OFA/N-Agent injection temperatures in large pilot-scale combustion facility. Tests demonstrated that co-injection of urea with overfire air resulted in NO{sub x} reduction. However, observed NO{sub x} reduction was smaller than that under optimum conditions.