Experience in Preservation of the Water Steam Cycle in CCPP (Combined Cycle Power Plants) with ODA (Octadecylamine)

Abstract

Based on the changes in the European energy market and EU goals for CO2 reduction, the fossil fired power plants, especially the high effective combined cycle power plants, are faced with new challenges. Flexible load requirements associated with frequent shutdowns especially in plants with peak load area are the results. In addition, large reserve capacities have to be retained for short-terms needs which can be quickly start operation. For this reason, preservation procedures play an increasingly important role. They should provide a good protective effect with the most simple handling and flexible management system. The preservation using FFA (film forming amines), for example, octadecylamine become more and more attraction. With the lecture, a first insight into the preservation process using octadecylamine will be given to the operators of boiler and turbine plants. Especially in the view of the further increase in supply of renewable energy and related flexibility requirements in the existing power plants, an efficient and sustainable preservation technology will be presented. Based on the feed-in priority of electricity from renewable energy sources, fossil fueled power plants have to deal with sinking electricity prices on the one hand and rising fuel costs on the other. Even the economic operation of highly efficient combined cycle power plants is more difficult. The results are frequent starts and stops and shutdowns with unknown duration. Even coal-fired power plants must cope with flexible load requirements and longer run-times in low and part load operation. In contrast, higher reserve capacities, which are often needed quickly, must be made available. For these reasons, preservation procedures have become more and more important. Because of different methods, the operator must decide to what