Client: Large data center operator
Location: Western US
Technologies: Selective Catalytic Reduction (SCR)
CASE STUDY
Emissions control on data center gas turbines
Fuel Tech designed and supplied 20 SCR systems in support of the fifth phase of a large, multi-phase Data Center project in the Western US. Currently, the site has 94 generating units ranging in size from 1.5 to 3.5MW.
The SCRs are controlling nitrogen oxide (NOx) emissions from the Kawasaki GPS3750-Z simple cycle natural gas-fired turbines, designed to operate up to 400 hours per year. The site is now home to more than 100 diesel and gas-fired engines.
| Fuel Fired | Natural Gas |
| Design Flue Gas Flow Rate | 183,350 lbs/h |
These standby, natural gas fired combustion turbines are designed to reach steady-state, full load operation within 40 seconds. The SCR systems rely on the direct injection of a 32.5% aqueous urea solution.
A portion of Fuel Tech’s scope of supply starts at the outlet of the engine exhaust manifold and ends with the steel stack. Due to the harsh environment, Fuel Tech also supplied 40 Conex boxes which house the urea storage, circulation, and distribution equipment, as well as a potable water supply and ancillary equipment supplied by Kawasaki.
| Maximum Flow Rate | 83,160 kg/h |
| 183,172 Ib/h | |
| Maximum Inlet NOx | 249 ppmd @ 15% O2 |
| Permit NOx Emission | 25 ppmd @ 15% O2 |
| NH3 Slip | 10 ppmd @ 15% O2 |
| Maximum Temperature | 1,041°F / 561°C |
As of late 2019, all 20 SCR systems have been successfully installed and are operating on a standby basis. Each unit passed its compliance testing and met the project’s performance requirements.
