日本川崎重工业株式会社开发出了不使用水和蒸汽,通过将燃烧温度控制在较低水平来抑制氢燃气轮机运行时氮氧化物(NO_x)产生量的“氢燃气轮机干式低排放(DLE)”技术,并在德国进行了燃烧试验,确认了其性能。一般来说,氢气燃烧速度快,燃烧时火焰温度高,NO_x产生量多达天然气燃烧的近两倍。川崎重工从2014年开始研发利用微小氢火焰来防止回火等不稳定燃烧,并减少NO_x产生量的DLE燃烧技术。其利用德国 Kawasaki Heavy Industries, Ltd. has developed a “hydrogen gas turbine dry low-emission (DLE)” model that suppresses the generation of nitrogen oxides (NO_x) in hydrogen gas turbine operation without using water and steam and by controlling the combustion temperature to a low level. "Technology and combustion tests in Germany confirmed its performance. In general, hydrogen gas burns fast and the flame temperature is high during combustion. The amount of NO x produced is nearly twice that of natural gas combustion. Since 2014, Kawasaki Heavy Industries has developed DLE combustion technology that uses tiny hydrogen flames to prevent unstable combustion such as tempering, and to reduce NO x production. Its use of Germany