Effect of toluene addition on hydrogen sulfide combustion under Claus condition

Salisu Ibrahim, Ahmed S. AlShoaibi, Ashwani K. Gupta

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Experimental results on the effect of different amounts of toluene addition to H2S gas stream are presented. Three toluene concentrations of 0.5%, 1% and 5% in H2S are presented and compared with the baseline case of 100% H2S/air combustion. Temperature data showed that addition of toluene to H2S gas stream increases the flame temperature because of large heating value associated with toluene. Addition of toluene resulted in the production of H2, which increased with increase in the amounts of toluene addition. Furthermore, increased addition of toluene concentration increased the asymptotic value of hydrogen sulfide due to oxidation competition between the formed H2 and H2S. The results also showed that the presence of CO triggers the formation of COS with toluene addition due to reaction of CO with SO2. The results revealed that SO2 mole fraction increased to a maximum value then decayed with distance along the reactor. Addition of toluene increased the rate of SO2 decay. These results have direct impact on sulfur capture in Claus reactor performance for sulfur capture.

Original languageBritish English
Title of host publicationFuels and Combustion, Material Handling, Emissions; Steam Generators; Heat Exchangers and Cooling Systems; Turbines, Generators and Auxiliaries; Plant Operations and Maintenance
StatePublished - 2013
EventASME 2013 Power Conference, POWER 2013 - Boston, MA, United States
Duration: 29 Jul 20131 Aug 2013

Publication series

NameAmerican Society of Mechanical Engineers, Power Division (Publication) POWER


ConferenceASME 2013 Power Conference, POWER 2013
Country/TerritoryUnited States
CityBoston, MA


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