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Evaluation of Biogas Biodesulfurization Using Different Packing Materials

1
Department of Biochemistry and Chemistry Technology, Institute of Chemistry, São Paulo State University (UNESP), Araraquara 14800-900, Brazil
2
Biological Process Laboratory, Center for Research, Development and Innovation in Environmental Engineering, São Carlos School of Engineering, University of São Paulo (EESC/USP), Av. João Dagnone, 1100, São Carlos 13.563-120, Brazil
*
Author to whom correspondence should be addressed.
ChemEngineering 2019, 3(1), 27; https://doi.org/10.3390/chemengineering3010027
Received: 18 December 2018 / Revised: 26 February 2019 / Accepted: 28 February 2019 / Published: 8 March 2019
(This article belongs to the Special Issue Advances in Biogas Desulfurization)
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Abstract

The packing material selection for a bioreactor is an important factor to consider, since the characteristics of this material can directly affect the performance of the bioprocess, as well as the investment costs. Different types of low cost packing materials were studied in columns to reduce the initial and operational costs of biogas biodesulfurization. The most prominent (PVC pieces from construction pipes) was applied in a bench-scale biotrickling filter to remove the H2S of the biogas from a real sewage treatment plant in Brazil, responsible for 90 thousand inhabitants. At the optimal experimental condition, the reactor presented a Removal Efficiency (RE) of up to 95.72% and Elimination Capacity (EC) of 98 gS·m−3·h−1, similar to open pore polyurethane foam, the traditional material widely used for H2S removal. These results demonstrated the high potential of application of this packing material in a full scale considering the robustness of the system filled with this support, even when submitted to high sulfide concentration, fluctuations in H2S content in biogas, and temperature variations. View Full-Text
Keywords: packing material; PVC; open-pore polyurethane foam; PET; Teflon; biotrickling filter; hydrogen sulfide elimination; H2S packing material; PVC; open-pore polyurethane foam; PET; Teflon; biotrickling filter; hydrogen sulfide elimination; H2S
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Tayar, S.P.; Guerrero, R.B.S.; Hidalgo, L.F.; Bevilaqua, D. Evaluation of Biogas Biodesulfurization Using Different Packing Materials. ChemEngineering 2019, 3, 27.

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