ULTRA LOW NOx CATALYTIC COMBUSTION FOR IGCC POWER PLANTS

Smith, Lance L.

Precision Combustion, Inc. (United States)

关键词: Nitrogen Oxides;    Coal Gasification;    Catalytic Combustors;    Carbon Monoxide;    01 Coal, Lignite, And Peat;   

DOI  :  10.2172/837618
RP-ID  :  NONE
RP-ID  :  FC26-03NT41721
RP-ID  :  837618

美国|英语

来源: UNT Digital Library

【 摘 要 】

Tests were performed in PCI's sub-scale high-pressure (10 atm) test rig, using PCI's two-stage (catalytic / gas-phase) combustion process for syngas fuel. In this process, the first stage is a Rich-Catalytic Lean-burn (RCL{trademark}) catalytic reactor, wherein a fuel-rich mixture contacts the catalyst and reacts while final and excess combustion air cool the catalyst. The second stage is a gas-phase combustor, wherein the catalyst cooling air mixes with the catalytic reactor effluent to provide for final gas-phase burnout and dilution to fuel-lean combustion products. During the reporting period, PCI successfully achieved NOx = 0.011 lbs/MMBtu at 10 atm pressure (corresponding to 2.0 ppm NOx corrected to 15% O{sub 2} dry) with near-zero CO emissions, surpassing the project goal of < 0.03 lbs/MMBtu NOx. These emissions levels were achieved at scaled (10 atm, sub-scale) baseload conditions corresponding to Tampa Electric's Polk Power Station operation on 100% syngas (no co-firing of natural gas).