ANALYSIS OF COMBINED POTASSIUM TOPPING, STEAM BOTTOM CYCLES USING FLUIDIZED-BED COMBUSTION OF CONSOL CHAR

摘要

The Consol process for making synthetic crude oil from coal produces a char as a by-product that is an undesirable fuel but can be burned for power generation in a fluidized bed. Instead of using steam as the working fluid, potassium was chosen for analysis, since a higher working temperature may allow a higher cycle efficiency and lower electric power costs. To speed the analysis, a set of process models and design algorithms were programmed. Simulation cases and flow sheets were generated by specifying a set of design variables and options.