Pollutant Emission Control Sorbents and Methods of Manufacture and Use

Abstract

Sorbents for removal of mercury and other pollutants from gas streams, such as a flue gas stream from coal-fired utility plants, and methods for their manufacture and use are disclosed. Embodiments include brominated sorbent substrate particles having a carbon content of less than about 10%. Other embodiments include one or more oxidatively active halides of a nonoxidative metal dispersed on sorbent substrate particles mixed with activated carbon in an amount up to 30% by weight.

1 - 26 . (canceled) 
     
     
         27 . A sorbent mixture adapted for removal of mercury from a flue gas stream, the sorbent mixture comprising:
 a first plurality of sorbent particles each comprising a porous support impregnated with bromide species, wherein an average diameter of the plurality of sorbent particles is less than 100 micrometers; and   a second plurality of flow modifier particles adapted to reduce agglomeration of the plurality of sorbent particles when the sorbent mixture is injected into the flue gas stream.