ABSTRACT

Since air pollution control occupies a leading position in the market for environ­ mental technology, this chapter concentrates on the engineering and material concepts in flue gas desulphurisation in fossil-fuel-fired power stations. Starting from the developments in the USA and Japan from about 1975 the use of metal­ lic materials of construction to accomplish these air pollution control tasks is described, using Germany as an example. Measures to reduce the pollutants in question were given a legal basis in Germany in 1974 with the Pollution Control and Noise Abatement Act (BlmSchG). In the same year the Technical Instruc­ tions for Air Pollution Control (TA-Luft) was passed, from which the regulations for large combustion plants (GFAVO) were later derived [1]. On this basis, from 1983 to mid 1988 a power station capacity of 37,000 MW at 72 sites in West Germany with 165 flue gas desulphurisation scrubbing lines and a total through­ put of 135 million standard cubic metres of flue gas was desulphurised [2].