A growing number of utilities are utilizing the dry sorbent injection of trona as a cost effective solution to SO_3 mitigation, Trona suppliers entering the market have different product characteristics and, as a result, a thorough investigation is required to ensure that the end product offered by the supplier is compatible with the material handling equipment and that ultimately, it performs as advertised. This paper will discuss AEP's efforts to develop and implement testing protocols to evaluate and approve trona suppliers for SO_3 mitigation systems tised throughout the AEP fleet. Qualification efforts included: establishing critical parameters such as free moisture, particle size, etc.; mill testing in both laboratory and in the field; producing test material in sufficient volumes; and performance testing at a plant. This paper will discuss the results of the full scale testing as well as the final material specifications that were developed from this effort.
展开▼
