W. D. Monnery, W. Y. Svrcek
The modified Claus process is the most common method for the conversion to sulphur of the hydrogen sulphide contained in sour oil and natural gas. An important but relatively unstudied part of the Claus process is the reaction kinetics of the front-end furnace where sulphur production occurs. This work studies the reaction between H₂S and SO₂ at actual Claus plant reaction temperatures and residence times. Experiments were conducted in a laboratory scale, isothermal, plug-flow reactor at temperatures between 850 and 1150 °C and residence times from 0.05 to 1.2 seconds. The overall conversion rates of H₂S and SO₂ were measured, and a new kinetic rate expression was formulated from the data. This expression correlates the experimental conversion data within 12% and 18% for H₂S and SO₂, respectively. Additionally, the predicted conversions align well with equilibrium values, and the calculated Arrhenius parameters accurately estimate the heat of reaction to within 0.05%. The work presents a significant advancement in understanding the kinetics of the Claus reaction, which is crucial for improving the efficiency of sulphur recovery processes.
@article{d83e7c35-4758-44d6-9d6d-682be8e67396,
title={New experimental data and kinetic rate expression for the Claus reaction},
author={W. D. Monnery and W. Y. Svrcek},
year={2000},
language={en}
}TY - JOUR TI - New experimental data and kinetic rate expression for the Claus reaction AU - W. D. Monnery AU - W. Y. Svrcek PY - 2000 LA - en ER -
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