Modeling and simulation of condensed sulfur in catalytic beds of CLAUS process: rapid estimation
DOI:
https://doi.org/10.3329/cerb.v14i2.5595Keywords:
Sulfur recovery, Claus process, catalytic beds, modeling, simulationAbstract
The Claus process has been known and used in the industry for over 100 years. It involves thermal oxidation of hydrogen sulfide and its reaction with sulfur dioxide to form sulfur and water vapor. This process is equilibrium-limited and usually achieves efficiencies in the range of 94-97%, which have been regarded as acceptable in the past years. First bed operates at the temperature of 573 K, second and third beds operate at 523K and 473K. Outlet of each bed enters the condenser. Operating temperature of each condenser is about 413K which sulfur condenses in them. In this study catalytic bed process of sulfur recovery unit has been mathematically modeled and by MATLAB software simulated, and then output conditions of compounds has been calculated.
Keywords: Sulfur recovery; Claus process; catalytic beds; modeling; simulation
DOI = 10.3329/cerb.v14i2.5595
Chemical Engineering Research Bulletin 14 (2010) 110-114
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References
ZareNezhad B and Hosseinpour N, Evaluation of different alternatives for increasing the reaction furnace temperature of Claus SRU by chemical equilibrium calculations, Applied Thermal Engineering, 2008. 28:p. 7. doi:10.1016/j.applthermaleng.2007.06.014
Goar B, Sulfur recovery technology., Energy Progress, 1986. 6(2):pp. 7175
Sassi M and Gupta A, Sulfur Recovery from Acid Gas Using the Claus Process and High Temperature Air Combustion(HiTAC) Technology, American Journal of Environmental Sciences, 2008. 4(5):pp. 502511
Monnery W, Svrcek W and Behie L, Modelling the modified claus process reaction furnace and the implications on plant design and recovery, The Canadian Journal of Chemical Engineering, 1993. 71(5):pp. 711724. doi:10.1002/cjce.5450710509
Levy A and Merryman E, The microstructure of hydrogen sulphide flames, Combustion and Flame, 1965. 9(3):pp. 229240. doi:10.1016/0010-2180(65)90089-1
Frenklach M, Lee J, White J and Gardiner Jr W, Oxidation of hydrogen sulfide, Combustion and flame, 1981. 41:pp. 116. doi:10.1016/0010-2180(81)90035-3
Tesner PA, Nemirovskii MS and Motyl DN, Kinetics of the thermal decomposition of hydrogen sulide at 800-1200 C, Kinetika I Kataliz, 1990. 30:pp. 889892
Elsner M, Menge M, M¨uller C and Agar D, The Claus process: teaching an old dog new tricks, Catalysis Today, 2003. 79:pp. 487494. doi:10.1016/S0920-5861(03)00071-3
Monnery W, Hawboldt K, Pollock A and Svrcek W, New experimental data and kinetic rate expression for the Claus reaction, Chemical Engineering Science, 2000. 55(21):pp. 51415148. doi:10.1016/S0009-2509(00)00146-9
