Effect of carbon dioxide and nitrogen addition on hydrogen sulfide combustion

H. Selim; A. K. Gupta; A. Al Shoaibi

doi:10.2514/6.2012-1000

Effect of carbon dioxide and nitrogen addition on hydrogen sulfide combustion

H. Selim, A. K. Gupta, A. Al Shoaibi

Chemical and Petroleum Engineering

University of Maryland

Research output: Contribution to conference › Paper › peer-review

Abstract

The Effect of the presence of nitrogen and carbon dioxide in H₂S acid gas stream is investigated. Concentrations of up to 30% of N₂ or CO₂ in H₂S have been examined. All cases were compared with the baseline case of 100% H₂S acid gas stream. Temperature measurements showed that injection of CO₂ or N₂ in the H₂S stream decreases the flame temperature. However, injection of CO₂ resulted in temperature increase downstream. Increase of carbon dioxide in the acid gas stream increased SO₂ mole fraction in the byproducts. In addition, the increase of CO₂ decreased the asymptotic value of H₂S at downstream locations. Furthermore, the presence of CO₂ decreased the amount of sulfur captured during the reaction process. This is attributed to increase in oxidizing medium in the reaction pool from the presence of carbon dioxide. The increase in oxygen fostered H ₂S combustion to form higher amounts of SO₂. Subsequently, the amount of captured sulfur and asymptotic value of H₂S decreased. On the other hand, the presence of nitrogen in the acid gas stream did not affect the reaction process significantly. Nitrogen acted as a diluent in the reactants and did not affect the reaction chemistry.

Original language	British English
DOIs	https://doi.org/10.2514/6.2012-1000
State	Published - 2012
Event	50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, United States Duration: 9 Jan 2012 → 12 Jan 2012

Conference

Conference	50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Country/Territory	United States
City	Nashville, TN
Period	9/01/12 → 12/01/12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2514/6.2012-1000

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title = "Effect of carbon dioxide and nitrogen addition on hydrogen sulfide combustion",

abstract = "The Effect of the presence of nitrogen and carbon dioxide in H2S acid gas stream is investigated. Concentrations of up to 30% of N2 or CO2 in H2S have been examined. All cases were compared with the baseline case of 100% H2S acid gas stream. Temperature measurements showed that injection of CO2 or N2 in the H2S stream decreases the flame temperature. However, injection of CO2 resulted in temperature increase downstream. Increase of carbon dioxide in the acid gas stream increased SO2 mole fraction in the byproducts. In addition, the increase of CO2 decreased the asymptotic value of H2S at downstream locations. Furthermore, the presence of CO2 decreased the amount of sulfur captured during the reaction process. This is attributed to increase in oxidizing medium in the reaction pool from the presence of carbon dioxide. The increase in oxygen fostered H 2S combustion to form higher amounts of SO2. Subsequently, the amount of captured sulfur and asymptotic value of H2S decreased. On the other hand, the presence of nitrogen in the acid gas stream did not affect the reaction process significantly. Nitrogen acted as a diluent in the reactants and did not affect the reaction chemistry.",

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year = "2012",

doi = "10.2514/6.2012-1000",

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AU - Selim, H.

AU - Gupta, A. K.

AU - Al Shoaibi, A.

PY - 2012

Y1 - 2012

N2 - The Effect of the presence of nitrogen and carbon dioxide in H2S acid gas stream is investigated. Concentrations of up to 30% of N2 or CO2 in H2S have been examined. All cases were compared with the baseline case of 100% H2S acid gas stream. Temperature measurements showed that injection of CO2 or N2 in the H2S stream decreases the flame temperature. However, injection of CO2 resulted in temperature increase downstream. Increase of carbon dioxide in the acid gas stream increased SO2 mole fraction in the byproducts. In addition, the increase of CO2 decreased the asymptotic value of H2S at downstream locations. Furthermore, the presence of CO2 decreased the amount of sulfur captured during the reaction process. This is attributed to increase in oxidizing medium in the reaction pool from the presence of carbon dioxide. The increase in oxygen fostered H 2S combustion to form higher amounts of SO2. Subsequently, the amount of captured sulfur and asymptotic value of H2S decreased. On the other hand, the presence of nitrogen in the acid gas stream did not affect the reaction process significantly. Nitrogen acted as a diluent in the reactants and did not affect the reaction chemistry.

AB - The Effect of the presence of nitrogen and carbon dioxide in H2S acid gas stream is investigated. Concentrations of up to 30% of N2 or CO2 in H2S have been examined. All cases were compared with the baseline case of 100% H2S acid gas stream. Temperature measurements showed that injection of CO2 or N2 in the H2S stream decreases the flame temperature. However, injection of CO2 resulted in temperature increase downstream. Increase of carbon dioxide in the acid gas stream increased SO2 mole fraction in the byproducts. In addition, the increase of CO2 decreased the asymptotic value of H2S at downstream locations. Furthermore, the presence of CO2 decreased the amount of sulfur captured during the reaction process. This is attributed to increase in oxidizing medium in the reaction pool from the presence of carbon dioxide. The increase in oxygen fostered H 2S combustion to form higher amounts of SO2. Subsequently, the amount of captured sulfur and asymptotic value of H2S decreased. On the other hand, the presence of nitrogen in the acid gas stream did not affect the reaction process significantly. Nitrogen acted as a diluent in the reactants and did not affect the reaction chemistry.

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U2 - 10.2514/6.2012-1000

DO - 10.2514/6.2012-1000

M3 - Paper

AN - SCOPUS:84873819138

T2 - 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

Y2 - 9 January 2012 through 12 January 2012

ER -

Effect of carbon dioxide and nitrogen addition on hydrogen sulfide combustion

Abstract

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UN SDGs

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