IMPROVED UTILIZATION OF POWDERED SORBENT FOR MERCURY CONTROL FROM COAL-FIRED POWER PLANTS

摘要

PURPOSE: The utilization of powdered absorbent for controlling hydrargyrum from a coal-fired electrical power plant is provided to efficiently remove hydrargyrum from flow containing combustion exhaust gas. CONSTITUTION: The utilization of powdered absorbent for controlling hydrargyrum from a coal-fired electrical power plant prepares a filtering unit(12). The filtering unit preparing process is implemented by following steps: at least one expanded-poly(tetrafluoro ethylene)(ePTFE) layer is prepared; a geometric structure is arranged in the ePTFE layer such that the geometric structure retains at least partially accumulated particulate matters. Particulates from flow containing combustion exhaust gas are partially accumulated in the filtering unit. [Reference numerals] (100) Containing hydrargyrum; (200) Selective activated carbon injection; (300) Selective backward pulse; (400) Selective pre-treatment for fly ashes(for example, electrostatic or primary filter); (AA) From combustion source