Emissions reduction benefits from hydrogen addition to midsize gas turbine feedstocks

The use of hydrogen addition to the natural gas feedstocks of midsize (30–150 MW) gas turbines was analyzed as a method of reducing nitrogen oxides ( NO x ). The costs of hydrogen addition as a function of its ability to reduce NO x were investigated. Hydrogen addition was evaluated against current control technologies for both existing and new systems to determine its benefits and market feasibility. Markets for NO x emissions credits currently exist in California and the Northeast States and are expected to grow; therefore, potential sale of emissions credits for volunteer retrofits was also included in this study.