Effect of O2 enrichment on acid gas oxidation and formation of COS and CS2 in a rich diffusion flame

Yang Li, Qinghua Guo, Xinlei Yu, Zhenghua Dai, Yifei Wang, Guangsuo Yu and Fuchen Wang

Applied Energy, 2017, vol. 206, issue C, 947-958

Abstract: O2 enriched combustion is applied to a non-premixed acid gas (AG) flame, in which AG and air are injected separately into a vertical reactor via a coaxial burner at atmosphere pressure. Equilibrium predictions of AG oxidation were performed using Aspen Plus and lab-scale experiments with particular focus on formation of COS and CS2 were undertaken under different combustion conditions. The effects of equivalence ratio (Φ=0.8, 1.0 and 3.0) and initial O2 concentration (OC) in air (21, 30 and 50vol%) have been studied and the flame is interpreted by analyzing the axial temperature and species concentration distributions along the reactor.

Keywords: Hydrogen sulfide oxidation; Oxygen enriched combustion; Carbon dioxide reactivity; Carbon disulfide; Carbonyl sulfide (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1016/j.apenergy.2017.07.113

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