Patent ID: 11883776
Assignee: GRAYMONT (PA) INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B  F  Y | IPC B  F

Claim 0:
1. A system for removing one or more air pollutants from a gas stream of an industrial facility, the system comprising:
an industrial apparatus configured to produce a gas stream having a plurality of calcium-containing particles and one or more air pollutants, the pollutants including at least one of mercury (Hg) or hydrochloric acid (HCl),
a cooling apparatus downstream of the industrial apparatus and positioned to receive at least a portion of the gas stream, wherein the cooling apparatus is configured to cool the gas stream, and wherein the cooled calcium-containing particles are configured to adsorb a portion of at least one of the Hg or HCl;
a temperature sensor positioned downstream of the cooling apparatus and configured to measure a temperature of the cooled gas stream;
a controller in communication with the temperature sensor and the cooling apparatus, wherein the controller is configured to cause the cooling apparatus to cool the gas stream, based on the measured temperature, to about 250-350° F.; and
a filtering system downstream of the cooling apparatus and positioned to receive the cooled gas stream, wherein the filtering system is configured to remove at least a portion of the calcium-containing particles having adsorbed Hg or HCl.