GE Marks ‘Ultra Low’ NOx Gas Turbine Technology Triumph
In a significant technical triumph, GE has completed first installation of a new gas-fired power plant technology that it says can reduce nitrogen oxide (NOx) emissions to 5 parts per million (ppm).
GE on April 11 completed combustion upgrades on nine GE 9E gas turbines at five power generation enterprises in Shenzen, a major industrial city in Guangdong Province, China, outfitting them with the company’s newest iteration of its dry low NOx (DLN) solution—DLN1.0+ with Ultra Low NOx.
The turbines are owned by Shenzhen Nanshan Power Corp., Shenzhen New Power Corp., Shenzhen Datang Baochang Gas Power Generation Co. Ltd., Shenzhen Yuhu Power Co. Ltd., and CNOOC Shenzhen Power Co. Ltd.
The upgrade reportedly reduces NOx emissions from the E-class Chinese turbines from 50mg/m3 (about 25 ppm) to 15mg/m3 (about 7.5 ppm). According to GE, the reductions are achieved through an increase of the flame temperature. “A flame with a lower temperature will produce less NOx, and the key is to be able to mix air and fuel together prior to burning,” it explained.…