Figure 1.

Simplified process flow diagram for catalytic conversion of H2S to elemental sulfur (1, H2S cylinder; 2, O2cylinder; 3, bomb; 4, gas inlet; 5, absorber/regenerator; 6, outlet gas checking port; 7, sulfur recovery; 8, gas inlet; 9, NaOH scrubber; 10, sweet gases; V1–V9, valves)

Deshpande et al. Nanoscale Research Letters 2008 3:221-229   doi:10.1007/s11671-008-9140-6