Products of hydrothermal gasification

The product gas is automatically separated from liquid phase when the reactor effluent is cooled down to the room temperature. Tar free gas is available, which is a benefit over usual thermochemical gasification of biomass. The main component is hydrogen, carbon dioxide, and methane. Due to the water-shift gas reaction the yield of carbon monoxide is negligible. The high temperature, low pressure, and dilute feedstock favors high hydrogen content. The heating value of the product gas depends on reaction condition, and usually varies from 12 to 18 MJ/m3-N.