A system for using carbonaceous material includes a steam reformer, a hydrocarbon reformer, and at least one gas-cleanup system. Also described are methods of producing liquid fuel and/or chemicals from carbonaceous material.

Apparatus and associated methods relate to drying a wet coated seed material stream comprising an incoming wet granular biosolids stream mixed with a controlled size dried seed material recycling stream to produce a moist air and pellet stream, separating an uncontrolled size dried pellet stream from the moist air and pellet stream, diverting a recycle portion of the uncontrolled size dried pellet stream to be recycled, diverting the remainder of the uncontrolled size dried pellet stream to an outlet, resizing oversized pellets from the recycle portion of the uncontrolled size dried pellet stream to produce the controlled size dried seed material recycling stream, and mixing the controlled size dried seed material recycling stream with the incoming wet granular biosolids stream to produce the wet coated seed material stream. Oversized pellets may be selected using a screen. The oversized pellets may be resized using a crusher inline with the recycle stream.

The invention relates to a process and system for converting carbon material into power. Carbon material 12 is gasified into synthesis gas 18 in a gasifier 16, and steam 14 is supplied to the gasifier 16. The synthesis gas 18 is supplied to a gas turbine 30, 36, 38 to produce power. Air 24 is added to the synthesis gas 18 prior to the gas turbine 30, 36, 38. Exhaust gas 40 from the gas turbine 30, 36, 38 is cooled in a first cooling device 42 with water 46 to produce steam 52. The steam is used in at least one steam turbine to produce power 56 and the steam 58 from at least one steam turbine 56 is recycled to the gasifier 16.