Session: 04-18: Combustor design IV

Paper Number: 103650

103650 - Fleet Experience of Sgt-600 (24mw) Dle Gas Turbine With Over 60% H2 in Natural Gas 

Hydrogen is one of the leading options for energy storage from renewables and surplus electricity, as well as a major constituent in various streams in the chemical industry. Due to the difficulties in controlling the combustion of hydrogen, it is often flared or used for heat and power generation.
Siemens Energy identified the 24 MWe SGT-600 3rd generation DLE (Dry Low Emission) gas turbine as most suitable for high hydrogen operation, and two units were awarded to Siemens Energy for operating on natural gas mixed with hydrogen. The project was sold with emission guarantees of 25 ppmv dry NOx@15%O2 for hydrogen levels between 40% and 60%, but also with the guarantee that the unit should not trip if the hydrogen level was higher than 60% (including up to 100% hydrogen). 
The commissioning of the units during 2022 proved that NOx emissions below 20 ppmv dry NOx@15%O2 could be achieved for hydrogen contents between 40-60%, which was well below the guaranteed values. Operation of the units have also been verified for hydrogen contents up to 90% at 50% load. 
The 3rd gen. DLE burner is also used in the 33MWe SGT-700 and the 62MWe SGT-800, which will also benefit from the development of the increased SGT-600 hydrogen capability. The results open the possibility of using H2 rich gas more widely in all gas turbine configurations using 3rd gen. DLE burner.

Presenting Author: Anton Berg Siemens Energy AB

Presenting Author Biography: Combustion Engineer at Siemens Energy in Sweden.

Authors:

Anton Berg Siemens Energy AB
Rikard Magnusson Siemens Energy AB