Improving high temperature heat capture for power generation in gasification plants

► Alternative fluids replace boiling water in a gasifier radiant heat exchanger (RHX). ► Liquids such as lead, LBE and molten salt are used to absorb heat from syngas in RHX. ► Tensile hoop stress is reduced in heat exchanger to achieve high exit temperatures. ► Liquids heat steam at higher pressure and temperature than are currently achievable. ► IGCC plant efficiency increases with innovation and payback time is around one year.