Moist input gases, H2SO4 production

Fig. 23.1. Simplified single contact sulfuric acid production flowsheet. Its inputs are moist feed gas and water. Its outputs are 98 mass% H2SO4, 2 mass% H2O sulfuric acid and dilute SO2, O2, N2 gas. The acid output combines gas dehydration tower acid, H2SO4 making tower acid and liquid water. The equivalent sulfur burning acid plant sends moist air (rather than moist feed gas) to dehydration. Appendix V gives an example sulfur burning calculation.

Fig. 23.4 shows the Fig. 21.1 acid plant s water requirement as a function of specified mass /o H2SO4 in product acid (constant volume% H20(g) in moist acid plant input gas). 

---

See also in sourсe #XX -- [ ]

---