 The Energos system includes a close coupled combustion stage which, as configured, uses all the syngas in the combustion stage.It is thus not able to produce syngas for external use and therefore sometimes categorized as two-stage combustion.The process enables improved control of the combustion to minimise the formation of combustion related emissions such as oxides of nitrogen (NOx), Carbon Monoxide (CO) and Total Organic Carbons (TOC).