Corrosion and Emission Reduction of Utility Boilers through Intelligent Systems

Abstract

The innovative aspect of CERUBIS project is to combine existing, develop new and adopt sensors from application in other industries, to form an integrated on-line corrosion monitoring system for hard-coal and lignite-fired boilers, under very low NOx emissions operation. The scope of CERUBIS project is to obtain one combined online corrosion/slagging monitoring system - Common Intelligent Boiler Operation Platform (CIBOP). Also a conceptual integration of the CIBOP with the boiler’s switching system, allowing for a more automated operation, while keeping the corrosion and slagging risk down to a minimum and at the same safeguarding proper NOx emission will be attempted. Next aiding environmental standard compliance and lowering the overhaul cost, a better control of corrosion and slagging processes has also direct impact on the overall boiler efficiency and hence economy of the power generation process. This in turn results in a better competitive position of the coal-(co-)fired boilers. Therefore the CERUBIS-project aims at enhancing the flexibility, operability and environmental performance of coal-fired power stations, simultaneously avoiding great expenditures connected with an unexpected boiler breakdown.