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

Claim 8:
9. A industrial facility, comprising:
a lime kiln configured to produce a lime kiln gas stream including lime kiln dust and one or more pollutants;
a temperature adjustment zone downstream of the lime kiln and positioned to receive the gas stream, the temperature adjustment zone being configured to cool the gas stream via air or water;
a temperature sensor positioned downstream of the temperature adjustment zone and configured to measure a temperature of the cooled gas stream;
a controller in communication with the temperature sensor and the temperature adjustment zone, wherein the controller is configured to cause the temperature adjustment zone to cool the gas stream, based on the measured temperature, to a temperature no less than 250° F.;
an injection system downstream of the lime kiln and configured to inject an injectate into the gas stream such that the injectate adsorbs to at least one of the lime kiln dust or the one or more pollutants, the injectate comprising at least one of calcium hydroxide, calcium oxide, or powder activated carbon; and
a filtering device downstream of the temperature adjustment zone and injection system, the filtering device being positioned to receive the gas stream and filter the lime kiln dust from the gas stream.