Applications of Laser-Induced Breakdown Spectroscopy and Laser Breakdown Time-of-Flight Mass Spectrometry to Thermal Power Plants

摘要

The measurement of coal and fly ash contents is the essential foundation for the adjustment of boiler combustion in thermal power plant. Rapid detection of coal and fly ash is significant to improve the efficiency of thermal power plant and to reduce the environmental pollutions. The pollutions of trace heavy metals in exhaust result in the serious influence on environment and human. First step of the pollution control is the fast and precise measurement of pollutants. Laser-induced breakdown spectroscopy (LIBS) has a great potential application of on-line measurement in thermal power plant. The direct measurement of particles using LIBS was studied. The LIBS method was also improved to measure the gas phase trace species,as well as the combined method of LIBS and time-of-flight mass spectrometry(TOFMS). These results will be useful for the applications of LIBS and TOFMS.