Flue Gas Treatment Process

摘要

An improved process is disclosed for conveying trona powder to be used in treating flue gas to remove impurities from the flue gas. The trona powder is pneumatically conveyed under controlled conditions wherein
a. the temperature of the conveying air is maintained at less than 135 degrees F., preferably less than 130 degrees F.,b. the relative humidity of the conveying air is maintained between about 15% and 50% andc. the dew point of the conveying air is maintained above the temperature of both the conveying lines and the receiving vessels

主权项

1. In a process for pneumatically conveying trona powder prior to dry sorbent injection of the trona powder into a flue gas to remove impurities in the flue gas resulting from the combustion of a fuel, said process comprising
a. transporting the trona powder from a container in which it is shipped through a conveying line to a receiving vessel by the use of conveying airthe improvement wherein:
the temperature of the conveying air is less than 135° F., the relative humidity of the conveying air is between about 15% and about 50%, and the dew point of the conveying air is maintained above the temperature of both the conveying lines and the receiving vessels.