Investigation of Inlet Gas Streams Effect on the Modified Claus Reaction Furnace


The objective of this paper is to model the main reactions that take place in the Claus reactor furnace and compare it with actual data and simulated process. Since the most important point is the selection of suitable reaction conditions to increase the reactor performance, the model is formulated to predict the performance of the Claus plant. To substantiate the theoretical model, we used actual process condition and feed composition in Shahid Hasheminejad Gas Refinery. Model equations have been solved by using MATLAB program. Results from MATLAB are compared with those from SULSIM? simulator and with actual plant data. The AAD (Average Absolute Deviation) of modeling results with actual data is 2.07% and AAD of simulation results with real data is 4.77%. Error values are very little and show accuracy and precision of modeling and simulation. The predicting curve for different parameters of the reactor furnace according to variable conditions and specifications are given.

Share and Cite:

R. Rezazadeh and S. Rezvantalab, "Investigation of Inlet Gas Streams Effect on the Modified Claus Reaction Furnace," Advances in Chemical Engineering and Science, Vol. 3 No. 3B, 2013, pp. 6-14. doi: 10.4236/aces.2013.33A2002.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] M. Sassi and A. K. Gupta, “Sulfur Recovery from Acid Gas Using the Claus Process and High Temperature Air Combustion (HiTAC) Technology,” American Journal of Environmental Sciences, Vol. 4, No. 5, 2008, pp. 502-511. doi:10.3844/ajessp.2008.502.511
[2] K. Karan, “An Experimental and Modeling Study of Homogeneous Gas Phase Reactions Occurring in the Modified Claus Process,” Ph.D. Thesis, University of Calgary, Calgary, 1998.
[3] W. D. Monnery, et al., “Modeling the Modified Claus Process Reaction Furnace and the Implications on Plant Design and Recovery,” The Canadian Journal of Chemical Engineering, Vol. 71, No. 5, 1993, pp. 711-724. doi:10.1002/cjce.5450710509
[4] K. A. Hawboldt, “Kinetic Modeling of Key Reaction in the Modified Claus Plant Front End Furnace,” Thesis, University of Calgary, Calgary, 1998.
[5] S. Asadi, et al., “Effect of H2S Concentration on the Reaction Furnace Temperature and Sulphur Recovery,” International Journal of Applied Engineering Research, Vol. 1, No. 4, 2011, p. 961.
[6] H. G. Paskall, “Capability of the Modified-Claus Process: A Final Report to the Department of Energy and Natural Resources of the Province of Alberta,” Western Research & Development, Cheyenne, 1979.
[7] H. G. Paskall, “Reaction Furnace Chemistry and Operational Models,” Sulphur Recovery, Western Research, Calgary, 1981.
[8] P. D. Clark, et al., “Mechanism of CS2 Formation in the Claus Front-End Reaction Furnace,” Proceedings of the 47th Annual Laurance Reid Gas Conditioning Conference, Norman, 2-5 March 1997, pp. 321-337.
[9] P. D. Clark, et al., “Mechanisms of CO and COS Formation in the Claus Furnace,” Industrial Engineering and Chemistry Research, Vol. 40, No. 2, 2001, pp. 497-508. doi:10.1021/ie990871l
[10] P. A. Tesner, M. N. Nemirovskii and D. N. Motyl, “Kinetics of the Thermal Decomposition of Hydrogen Sulphide at 600 - 1200℃,” Kinetics and Catalysis, Vol. 31, 1990, p. 1232.
[11] B. Goar, et al. “Sulfur Recovery Technology,” Energy Progress, Vol. 6, No. 2, 1986, pp. 71-75.
[12] J. A. Sames and H. G. Paskall, “Simulation of Reaction Furnace Kinetics for Split-Flow Sulphur Plants,” Sulphur Recovery, Western Research, Calgary, 1990.
[13] E. A. Luinstra and P. E. Haene, “Catalyst Added to Claus Furnace Reduces Sulfur Losses,” Hydrocarbon Process, Vol. 68, No. 7, 1989, pp. 53-60.
[14] J. A. Sames, et al., “Evaluation of Reaction Furnace Variables in Modified Claus Plants,” Sulphur Recovery, Western Research, Calgary, 1990.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.