In a test of the process, a gas stream, F, containing 20% H2S and 80% CH4 was combined with a stream, B, of pure SO2. The process produced 5,000 lbm of S(s), and in the product gas the ratio of SO2 to H2S was equal to 3, and the ratio ofH2O to H2S was 10.
Hydrogen sulfide and other sulfur compounds are
removed from natural gas by sweetening processes. As you know H2S is toxic in very small
quantities and is quite corrosive to process equipment. Matthew, Erica and Nicholas F proposed
a process to remove H2S by reacting it with SO2:
In a test of the process, a gas stream, F, containing 20% H2S and 80% CH4 was combined with a
stream, B, of pure SO2. The process produced 5,000 lbm of S(s), and in the product gas the ratio
of SO2 to H2S was equal to 3, and the ratio ofH2O to H2S was 10.
QUESTION
The process design engineers, Bailly, Olivia, and Judith need to determine the feed rates
of the H2S stream (i.e. stream, F) and SO2 stream (i.e. stream B). Please calculate both of
those. [Hint: Start by completely labeling the diagram above].
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