IGR combined NO{sub x}/SO{sub x} control technology. Phase 1, volume 1.

The objective of this project is to develop and demonstrate the feasibility of a new, simple, modular, all solid-state electrochemical technology for the simultaneous removal of NO{sub x} and SO{sub x} pollutants from coal-fired combustors, in a cost effective, reliable and practical manner. The work accomplished in this Phase 1 project involved the formulation and testing of proprietary materials for NO{sub x} and SO{sub x} removal under conditions appropriate to coal-fired combustors for electric power production. The Phase 1 work also explored methods for reduction of the operating temperatures of the process, reduction of its power requirements, and increasing the levels of NO{sub x} and SO{sub x} removal at higher levels of oxygen. The Phase 1 work has demonstrated the basic technical feasibility of IGR`s NO{sub x}/SO{sub x} removal technology. We have successfully achieved NO{sub x} and SO{sub x} removal in the presence of large concentrations of oxygen (including the range of oxygen levels in coal-fired combustors). We have demonstrated successful operation of IGR`s NO{sub x}/SO{sub x} removal technology at greatly reduced operating temperatures. Significant progress has been made in the reduction of the electrical power requirement of the removal process. In particular, NO{sub x} removal has been accomplished at power consumption levels that are economically feasible. In addition, the ability of this technology to remove SO{sub 2} from a high concentration gas stream (such as that generated from the copper oxide absorption process) has been demonstrated. In summary, the Phase 1 work has served to resolve the basic feasibility questions associated with this technology. The importance of the Phase 1 work is that it has greatly reduced the technical risk associated with IGR`s NO{sub x}/SO{sub x} removal technology, which makes the development of commercially feasible devices highly probable