Instrumentation and controls for a high-pressure, high-temperature, fluidized-bed coal gasification process

Present-day technology has been successfully applied for measurementand control of process streams found in the HYGAS pilot plant. These streams have required speical tecniques due to the presence of corrosive, abrasive solids, and high temperaures and presures. However, IGT, as thte process developer, is always searching for improved technology which is better suited to cope with some of the unique process requirements. Consequently, several areas of the plant have experimental instrumentation equipment instaled for evaluation. We are presently working with Argonne National Laboratories in their development of acoustical and capacitive techniques for slurry flow and density measurement. The HYGAS program will continue to develop and institute new instrumentation to complement existing technology so that improved measurement and control techniques can be developed for the emerging coal gasification plants.