Industrial data sulfur burning

Fig. 3.1. Sulfur burning flowsheet - molten sulfur to clean dry 700 K S02, 02, N2 gas. The furnace is supplied with excess air to provide the 02 needed for subsequent catalytic oxidation of S02, to SO3. Table 3.1 gives industrial sulfur burning data.

Fig. 3.4. Entrance to fire tube boiler tubes after Fig. 3.3 s sulfur burning furnace. 1400 K gas ( 11 volume% S02, 10 volume% 02, 79 volume% N2) leaves the furnace and enters the boiler. It turns 90° in the boiler and flows into the tubes. The tubes are surrounded by water. Heat is transferred from the hot gas to the water - cooling the gas and making (useful) steam. The tubes are typically 0.05 m diameter. Table 3.1 gives industrial furnace data. Sulfur furnace boilers are discussed by Roensch (2005).

Economics for the citrate process, based on a 200 MW power plant, burning 3% sulfur coal, were presented last fall at the Purdue University Industrial Fuel Conference (24). Data coming out of Terre Haute will shortly be translated to an updated economic projection on the process. 

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