Donnish Journal of Pure and Applied Chemistry

January 2016 Vol. 2(1), pp. 001-004

Copyright © 2016 Donnish Journals

Original Research Paper

Pilot Study for Selective Hydrogen Sulfide Removal by a Jet Reactor

É. Molnár*, D. Rippel-Pethő, G. Horváth, J. Bobek, R. Bocsi and Z. Hodai

University of Pannonia, Institute of Chemical and Process Engineering, Department of Chemical Engineering Science, H-8200 Veszprém, Hungary.

Corresponding Author E-mail: molnare@almos.uni-pannon.hu

Accepted 10th November, 2015.

Abstract

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Strict protocols regulate the level of hydrogen sulfide in the gas industry. Hydrogen sulfide poses serious problems during the transportation and usage of natural gas; hence its removal is of utmost importance. The works presented in this article describe the competitive alkali chemisorption of hydrogen sulfide and carbon dioxide in a jet reactor. A modeling gas mixture was used for the experiments consisting of hydrogen sulfide, carbon dioxide and nitrogen. The most important parameters during the measurements were the gas flow rate (1-2.5Nm³/h), residence time (< 1 s and < 0.1 s), the volume flow rate of the absorbent sodium hydroxide (1-2-4-6-8cm3/min) and its concentration (0.5-1.5-2.5m/m%). The results show that an increase in the gas flow – and hence a decrease in the residence time – results in a significant improvement in efficiency with the 0.5 m/m% alkaline solution.

Keywords: Hydrogen sulfide, Carbon dioxide, Sodium hydroxide, Competitive chemisorption, Gas purification, Jet reactor.

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Cite This Article:

É. Molnár*, D. Rippel-Pethő, G. Horváth, J. Bobek, R. Bocsi and Z. Hodai. Pilot Study for Selective Hydrogen Sulfide Removal by a Jet Reactor. Donnish Journal of Pure and Applied Chemistry 2(1) 2015 pp. 001-004.