INLET-PRECHARGED LIMESTONE EMISSION CONTROL (LEC) PROJECT

MANY UTILITY AND INDUSTRY COAL-FIRED BOILERS HAVE ELECTROSTATIC PRECIPITATORS (ESPS) ALONE, WHICH ARE NOT CAPABLE OF REMOVING SO2. MANY OLDER ESPS WILL REQUIRE UPGRADING IN THE 1990S TO MEET MORE STRINGENT PARTICULATE STANDARDS. ETS, INC. HAS TESTED ITS PATENTED LIMESTONE EMISSION CONTROL (LEC) SYSTEM, DEMONSTRATING GREATER THAN 90% SO2 REMOVAL CAPABILITY. LECS CAN BE PLACED DOWNSTREAM OF ESPS. IT IS BELIEVED THAT LECS CAN ALSO REMOVE FINE FLUE GAS PARTICULATE, IF AN INLET PARTICULATE PRECHARGER IS ADDED. ETS WILL CONDUCT EXPERIMENTS ON A BENCH SCALE DEVICE AND ON A PILOT PLANT TO TEST FOR INCREASED PARTICULATE REMOVAL (ESPECIALLY SUBMICROMETER) DUE TO PRECHARGING. THIS TECHNOLOGY HAS THE POTENTIAL TO SAVE UTILITIES AND INDUSTRY BILLIONS OF DOLLARS IN RETROFIT COSTS. ALSO, THE CALCIUM SULFATE BY-PRODUCT COULD BE MARKETED TO OFFSET PART OF THE ABATEMENT COSTS. THIS LEC TECHNOLOGY USES MUCH LESS THAN 1% PARASITIC ENERGY, AND ITS SIMPLICITY POINTS TO A HIGHLY RELIABLE UTILITY-SCALE OPERATION.