🚀 go-pugleaf

The first full-scale commercial SCONOx installation was completed mid-May
at the Sunlaw Cogeneration Partners I facility in Vernon, CA.  The
facility is a GE LM2500 combined cycle plant.  Original Plant design
capacity was 26.2 Mw (21.5 from the gas turbine, balance from steam
turbine).  With 25 GPM of water the Plant produces up to 25 Mw from the
gas turbine and upwards of 6 MW from the steam turbine.  NOx goes from
normal 44 ppm to 25 ppm and CO goes from 8 to 12 ppm with this added hot
water injection.  All flue gas is then run through a SCONOx catalyst
operating at approximately 280 degrees which reduces NOx to 6 ppm and CO
to 2 ppm.  The SCONOx catalyst uses no ammonia.

Since the injected water is above 300 F,  heat rate (electrical
efficiency) improves as it does with steam injection, and increased output
is around 20%.  Steam production also increases slightly as opposed to
being reducerd when steam injection is used for NOx control and power
enhancement.  The Plant has operated with heated injection water for 3
years, with 2 years prior to that of massively increased water injection
using cold water, and 2 years prior to that of normal water injection.
Combustor life is currently 2 years 2 months and counting.  The combustor
looks great on inspection.