Technical economic analysis of different desulphurization techniques for power plant boilers

Abstract

In recent years, rapid development in energy and power industry has led to significant increase in sulphur dioxide emission for lack of appropriate techniques of desulphurization for coal-fired power plants and industrial boilers. It is therefore necessary to promote the research, development and application of these techniques.In this work, related were the operating cost account, principles of desulphurization, technical features, and scope of application of different desulphurization techniques for power plant boilers. Based on the stipulations for the operating cost account in China (inclusive of consumption of materials and power, maintenance and management, manpower, depreciation of equipment, overhaul charge, and investment loan repayment, etc.), operating cost calculations were carried out for the major desulphurization projects in China, which have been in operation or will be put into operation in the near future. The calculation results were compared. In addition, an analysis of the technical economic indices of different desulphurization techniques was made, and points for attention in selecting the technique were discussed.