Patent ID: 9221013
Filing Date: 2015-12-29
Classification: B01D,C10L,F23J

Abstract:
1. A method, comprising: combusting, in a thermal unit, a halogen-containing and mercury-containing carbonaceous feed material to form a mercury-containing gas stream, the mercury-containing gas stream also comprising a halogen and particulates from the carbonaceous feed material; separating, in at least one of an electrostatic precipitator and baghouse, at least a portion of the mercury, halogen, and particulates from the mercury-containing gas stream; after separating, contacting, in a scrubber, a chemical agent with the mercury-containing gas stream to enhance removal of residual mercury from the mercury-containing gas stream, wherein the chemical agent comprises a halogen and wherein the halogen in the chemical agent comprises iodine; and after contacting, removing, by the scrubber, at least part of the halogen and the residual mercury from the mercury-containing gas stream.