Sulfur acidmaking

The three main recent developments in sulfuric acidmaking have been ... 

An alternative to the conventional acidmaking described here is Wet Sulfuric Acidmaking (Laursen, 2005 Topsoe, 2005 WSA, 2005). 

Figure 23.1 is a simplified sulfuric acidmaking flowsheet. Its inputs are... 

It differs from conventional sulfuric acidmaking in that it produces strong 98 mass% H2SO4-2 mass% H2O sulfuric acid from weak, <6.5 volume% SO2, H20(g)-bearing acid plant feed gas. 

The raw material for conventional sulfuric acidmaking is SO2 gas. The raw material for wet gas sulfuric acidmakmg is also SO2 gas—accompanied by H2O gas. It is mainly obtained by ... 

Table 25.2 shows the compositions of three wet sulfuric acid feed gases. It indicates that wet sulfuric acidmaking s SO2 feed is always accompanied by H20(g), O2, and other gases. 

A practical limitation on wet gas sulfuric acidmaking is condenser temperature, which must be below about 290 °C because of its materials of construction. 

The first major step in wet sulfuric acidmaking is catalytic SO2 oxidatiOT (Fig. 25.1). The reaction is ... 

Industrial measurements indicate that efficient sulfuric acid cmidensation during wet sulfuric acidmaking requires... 

Wet sulfuric acidmaking produces H2S04(g) from S03(g) and H20(g) at 500-900 K. This appendix ... 

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