2003
DOI: 10.1021/ie021012r
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Kinetic Study of the Pyrolysis of H2S

Abstract: The pyrolysis of hydrogen sulfide has been studied at residence times between 0.4 and 1.6 s and in the temperature range of 800−1100 °C. A continuous perfectly mixed quartz reactor was used to acquire kinetic data on the thermal dissociation of hydrogen sulfide and elemental sulfur mixtures diluted in argon (95 vol %). The kinetic auto-acceleration effect of sulfur is demonstrated. A detailed radical mechanism is written to account for the experimental results, in particular for the auto-acceleration effect, a… Show more

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Cited by 87 publications
(60 citation statements)
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“…Importantly, reaction (2) is also thermodynamically unfavourable. The thermal decomposition of H 2 S can only occur with temperatures above 1073 K. 45,46 As a result, reactions (2) and (3) can only occur when treatment temperatures are higher than 1073 K. This is due to H 2 produced from reaction (2). Therefore, when treatment temperatures are lower than 973 K, only reaction (1) occurs.…”
Section: Structure and Morphology Of Zns Nanocrystalsmentioning
confidence: 99%
“…Importantly, reaction (2) is also thermodynamically unfavourable. The thermal decomposition of H 2 S can only occur with temperatures above 1073 K. 45,46 As a result, reactions (2) and (3) can only occur when treatment temperatures are higher than 1073 K. This is due to H 2 produced from reaction (2). Therefore, when treatment temperatures are lower than 973 K, only reaction (1) occurs.…”
Section: Structure and Morphology Of Zns Nanocrystalsmentioning
confidence: 99%
“…Its thermal stage promotes the conversion of H 2 S into elemental sulfur by a controlled oxidation at high temperatures (900-1500°C). This process involves several reactions such as oxidation [36] and pyrolysis of H 2 S [37]. The overall global reaction:…”
Section: The Acid Gas To Syngas Tm (Ag2s Tm ) Technologymentioning
confidence: 99%
“…The pyrolysis of H 2 S has been the subject of a number of experimental (e.g., [43,55]) and modeling (e.g., [50,52]) studies. Compared to the experimental data of Hawboldt et al [43] (targets 6-7), H 2 S conversion predicted by the basic mechanism tends to be too slow for most temperatures (see Fig.…”
Section: Optimization Targetsmentioning
confidence: 99%