Desulphurization process, control

The hydrocarbon desulphurization process illustrates two different purposes of these analysers process control and control of wastes dumped into the atmosphere. The desulphurization process Involves two stages. In the first, sulphur is removed from the hydrocarbons by catalytic hydrogenation (Fig. 16.2) ... 

Table 33.5. Interaction table showing power and speed of control for the desulphurization process.

Limestone is an important material. It was used thousands of years ago to build the colossal pyramids of Egypt and is used today to manufacture cement and concrete. Many derivatives of limestone are used as fertilizer, for alkalination of chemical processes, and as a pollution control substance used to absorb sulfur dioxide pollutants in flue gas desulphurization. 

Moyes, A. J., Mills, B., Rothery, E., and Brown, A., 1975, Practical Engineering Aspects of the Holmes-Stretford Process for the Desulphurization of Coke-Oven Gas," in Proc. Eng. Aspects Pollut. Control Met. Ind., Metals Society, London, November, pp. 101-106. 

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