Abstract: A ferrous sulfide suspension that includes at least FeSm and Al(OH)3 and which can be used to reduce mercury emissions in flue gases. Through a combination of complex chemical reactions, precipitation, co-precipitation, and surface adsorption the ferrous sulfide suspension of the present invention effectively removes mercury from gaseous streams while concurrently preventing mercury re-emission.
Type:
Grant
Filed:
February 28, 2014
Date of Patent:
May 19, 2015
Assignee:
Redox Technology Group LLC
Inventors:
Thomas P. McCullough, Gary Joel Meyer, Ralph E. Roper, Jr., Anthony J. Kriech