Patent ID: 8741181

Claim:
An apparatus for treating raw syngas generated by underground coal gasification (UCG), comprising: a) a separator for separating liquids and solids from the raw syngas generated by UCG, comprising: (i) a vessel having a top section and a bottom section; (ii) a gas feed inlet; (iii) a gas outlet located above the gas feed inlet; (iv) an outlet for liquids located below the gas feed inlet; and (v) a basket strainer housed within the bottom section of the vessel, wherein the bottom section of the vessel receives the separated liquids and solids; and b) a vent system for routing raw syngas containing high levels of oxygen to atmosphere, the vent system comprising: (i) a vertically orientated vessel; (ii) a gas outlet at an upper region of the vessel; (iii) a liquid sealing arrangement at the bottom of the vessel; and (iv) a gas inlet for feeding incoming syngas into the liquid sealing arrangement.