ABSTRACT

As far as S 0 2 is concerned, only 50% of worldwide production is pres­ ently removed, and there is a general demand for a larger reduction of emissions by adopting desulphurization plants based on several commer­ cial processes. Such processes allow a removal efficiency of about 80%, but they require high investments, exhibit large operating costs, and pro­ duce by-products that need to be safely allocated.