Module 7: Control of Sulfur Oxides and Other Acid Gases 1. Discuss the impact th

Question

Module 7: Control of Sulfur Oxides and Other Acid Gases 1. Discuss the impact that the tonnage of sulfur or sulfuric acid recovered from SO2 in flue gas treatment would have upon the chemical industry if all coal- and oil-fired were required to use such treatment processes. 2. A new power plant is being designed to burn coal having 3 percent sulfur content and a heating value of 11,000 Btu/lb. What is the minimum efficiency that a sulfur dioxide removal system can have for the plant to comply with the current NSPS? (See Table 2-3). 3. A No. 5 fuel oil having a maximum sulfur content of 2.0 percent and a heating value of 148,000 Btu/gal is being considered as a fuel for an industrial boiler. If the specific gravity of the oil is 0.953, what is the minimum efficiency required of a sulfur dioxide scrubber system in order for the plant to meet an emission standard of 0.8 lb/106 Btu for a new plant?

Explanation / Answer

1) The recovery costs of sulfur or sulfuric acid are high.

In order to recover the treatment cost ,the tonnage of sulfur or sulfuric acid has to be sold to recover .

Otherwise they will have no space to store the huge volume of sulfur or sulfuric acid.

The transportatioin of sulfur is easy where as the transportatioin of sulfuric acid is difficult.

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