Following is the description of next items.
1. Trend of cogeneration in Japan.
2. Current regulatory trend on NOxin Japan.
3. NOx reduction technology of gas engines.
(1) Three way catalyst.
(2) Lean combustion.
4. NOx reduction technology of gas turbines.
(1) Water injection.
(2) Steam injection.
(3) Premixed lean combustor.
(4) Selective catalystic reduction by NH3.