Patent ID: 8783215

Claim:
An apparatus comprising: (1) a scrubber, the scrubber including; (a) a first port that is fluidically coupled with a source of the first gas, the first gas comprising syngas and tars, wherein the tars have a first concentration in the first gas; (b) a second port that is fluidically coupled with an internal-combustion engine such that the second port provides a second gas to the internal-combustion engine, the second gas including syngas and having a second concentration of tars that is lower than the first concentration; and (c) a third port that is fluidically coupled with the internal-combustion engine such that the third port provides a first liquid fuel to the internal-combustion engine, the first liquid fuel comprising tars dissolved in the first liquid; and (2) the internal-combustion engine, the internal-combustion engine being physically adapted to operate with the second gas and the first liquid fuel.