Selective Hydrogen Sulphide Removal from Acid Gas by Alkali Chemisorption in a Jet Reactor

Authors

  • Janka Bobek
  • Dóra Rippel-Pethő
  • Éva Molnár
  • Róbert Bocsi

DOI:

https://doi.org/10.1515/hjic-2016-0006

Keywords:

acid gas, H2S selective removal, CO2, competition with H2S, chemisorption

Abstract

Natural gas is a primary energy source that contains a number of light paraffins. It also contains several undesirable components, such as water, ammonia, hydrogen sulphide, etc. In our study, a selective hydrogen sulphide removal process was achieved by alkali chemisorption in a custom-designed jet reactor. Several model gas compositions (CO2-H2S-N2) were evaluated to find parameters that enable H2S absorption instead of CO2. The negative effect of the presence of CO2 in the raw gas on the efficiency of H2S removal was observed. The beneficial effect of the low residence time (less than 1 s) on the efficiency of H2S removal was recognized. Optimal operational parameters were defined to reach at least a 50% efficiency of H2S removal and minimal alkali consumption.

Author Biographies

Janka Bobek

Department of Chemical Engineering Science, University of Pannonia, Egyetem str. 10, Veszprém, H-8200, HUNGARY

Dóra Rippel-Pethő

Department of Chemical Engineering Science, University of Pannonia, Egyetem str. 10, Veszprém, H-8200, HUNGARY

Éva Molnár

Department of Chemical Engineering Science, University of Pannonia, Egyetem str. 10, Veszprém, H-8200, HUNGARY

Róbert Bocsi

Department of Chemical Engineering Science, University of Pannonia, Egyetem str. 10, Veszprém, H-8200, HUNGARY

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Published

2016-08-20

How to Cite

Bobek, J., Rippel-Pethő, D., Molnár, Éva, & Bocsi, R. (2016). Selective Hydrogen Sulphide Removal from Acid Gas by Alkali Chemisorption in a Jet Reactor. Hungarian Journal of Industry and Chemistry, 44(1), 51–54. https://doi.org/10.1515/hjic-2016-0006