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- W1497795941 abstract "Several experimental and theoretical investigations of plasma-chemical H{sub 2}S dissociation have addressed the effects of different gas compositions and various types of discharges (such as microwave, radio-frequency, arc, and glidarc discharges). There are two primary reasons for these investigations: (1) the plasma-chemical process recovers both hydrogen (a valuable chemical reagent) and sulfur from H{sub 2}S (as in the conventional Claus process), and (2) plasmas can be used for selectively decomposing H{sub 2}S in air and other exhaust gases for environmental-control purposes. These studies have shown that, in plasmas with strong centrifugal force fields, H{sub 2}S can be dissociated with high specific rates and low specific energies of dissociation (0.8-1.0 eV/molecule). Furthermore, acid gases from both natural deposits and those produced in industrial processes often contain significant amounts of CO{sub 2} in addition to H{sub 2}S. Unfortunately, CO{sub 2}can have substantial, negative impacts on H{sub 2}S dissociation. In particular, CO{sub 2} can significantly increase the process energy consumption and affect by-product composition. However, until this study, the influence of CO{sub 2} on the plasma-chemical dissociation of H{sub 2}S has not been studied in detail. This study presents the results of a theoretical analysis of an experimental determination of the CO{sub 2} effects over a wide range of CO{sub 2} concentrations. This analysis identified the primary chemical reaction mechanism and the kinetics for the plasma-chemical dissociation of H{sub 2}S, including the generation of two undesirable by-products, SO{sub 2} and COS." @default.
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- W1497795941 date "1995-08-01" @default.
- W1497795941 modified "2023-09-24" @default.
- W1497795941 title "Mechanism and kinetics of H{sub 2}S-CO{sub 2} mixture dissociation in plasma of a microwave-discharge" @default.
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