Complex sentence: Employing oxygen without nitrogen and the trace gases found in air eliminates the primary source for the formation of nitrogen oxide (NO x), producing a flue gas composed primarily of carbon dioxide and water vapor; other trace pollutants depend on the fuel selected.
Split into simpler sentences: Employing Oxygen without Nitrogen and the trace gases found in air eliminates the primary source for the formation of Nitrogen Oxide (NO x). Producing a flue gas primarily of Carbon dioxide and Water vapor, other trace pollutants depend on the fuel selected.