Extra Low NO_x Emission Furnace with HTAC Technology

摘要

HTAC (High Temperature Air Combustion) technology needs high temperature air and low oxygen atmosphere to complete its unique combustion and achieve extra low NOx production. In order to apply HTAC technology to forge furnace and meet the NOx emission standard, exhaust gas regeneration technology in combination with no-fuel-switch and U-shape air circulation methods was applied on forge furnace. The results show that extra low NOx emission (NOx 2.9× 10-5, in volume fraction) could be obtained, the NOx emission meets the standards of Japan and US, HTAC mechanism is discussed finally.