A gasifier is a furnace in which the air supply is restricted to prevent complete combustion, hence its more descriptive tag 'gasification by partial combustion'.
The PAH's also occur during partial combustion, as when a candle burns and when a steak is grilled on charcoal.
The flames result from the partial combustion of the flammable alcohol, which is quickly consumed, while some residual flavor remains.
Burning wood fuel in an open fire is both extremely inefficient (0-20%) and polluting due to low temperature partial combustion.
Fumaric acid converts to the irritant maleic anhydride, upon partial combustion.
Before partial combustion, the biomass is dried, and sometimes pyrolysed.
The technique of biomass gasification by partial combustion has a long history.
Today acetylene is mainly manufactured by the partial combustion of methane or appears as a side product in the ethylene stream from cracking of hydrocarbons.
The fuel also cuts carbon monoxide, which is a product of partial combustion, by 25 percent, and toxic compounds are cut by 47 percent.
Instead of breaking the cellulose into sugar molecules, the carbon in the raw material is converted into synthesis gas, using what amounts to partial combustion.