US Patent 7740671 Dump cooled gasifier

A dump-cooled gasifier includes a vessel, a liner, and coolant. The liner has a head end, an aft end, and a plurality of channels extending along a length of the vessel. The aft end of the liner is axially and radially expandable with respect to the head end of the liner. The coolant enters at the head end of the liner, flows through the liner, and is expelled from the aft end of the liner directly into the vessel.