Enhanced mercury capture from coal-fired power plants in the filtration baghouse using flue gas temperature as process control knob

A system for improved mercury removal from a flow containing combustion exhaust;

• the system including:
• filtration means for removing material, including mercury, from the flow proceeding through the filtration means;
• sensor means for sensing a mercury concentration within the flow downstream of the filtration means and for providing a signal indicative of the sensed mercury concentration;
• and
• temperature control means for changing a temperature of the combustion exhaust proceeding to the filtration means in response to the signal indicative of the sensed mercury concentration to change an amount of mercury being removed from the flow.

A method for improved mercury removal from a flow containing combustion exhaust;

• the method including:
• filtering the flow to remove material, including mercury, from the flow proceeding through a filtration arrangement;
• sensing a mercury concentration within the flow downstream of the filtration arrangement and for providing a signal indicative of the sensed mercury concentration;
• and
• changing a temperature of the combustion exhaust proceeding to the filtration arrangement in response to the signal indicative of the sensed mercury concentration to change an amount of mercury being removed from the flow.