| Title: |
A Two-Stage Biogas Desulfurization Process Using Cellular Concrete Filtration and an Anoxic Biotrickling Filter |
| Authors: |
Poser, Morgane; Silva, Luis Rodolfo Duarte E.; Peu, Pascal; Dumont, Eric; Couvert, Annabelle |
| Contributors: |
Institut des Sciences Chimiques de Rennes (ISCR); Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes); Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS); Laboratoire de génie des procédés - environnement - agroalimentaire (GEPEA); École nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique); Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST); Nantes Université - pôle Sciences et technologie; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - Institut Universitaire de Technologie Saint-Nazaire (Nantes Univ - IUT Saint-Nazaire); Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ); Optimisation des procédés en Agriculture, Agroalimentaire et Environnement (UR OPAALE); Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); Institut Universitaire de Technologie - Nantes (Nantes Univ - IUT Nantes); Traitement Eau Air Métrologie (GEPEA-TEAM); Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-École nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique); This research was funded by the French governmental agency ADEME (N°TEZ19-041) and the Region of Brittany (N°1169). |
| Source: |
ISSN: 1996-1073 ; Energies ; https://hal.science/hal-03675283 ; Energies, 2022, 15 (10), pp.3762. ⟨10.3390/en15103762⟩. |
| Publisher Information: |
HAL CCSD; MDPI |
| Publication Year: |
2022 |
| Collection: |
Université de Rennes 1: Publications scientifiques (HAL) |
| Subject Terms: |
H2S; cellular concrete; biotrickling filter; biogas; desulfurization; [SDE.IE]Environmental Sciences/Environmental Engineering; [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering |
| Description: |
International audience ; A two-stage desulfurization process including an abiotic filtration using cellular concrete waste (first stage) and an anoxic biotrickling filter filling with an inoculated expanded schist material (second stage) was investigated to remove H2S in mimic biogas with limited O2 amount (ranged from 0.5 to 0.8%). The two-stage process was able to satisfactorily remove H2S for all experimental conditions (RE > 97%; H2S concentration = 1500 mg m−3; total Empty Bed Residence Time (EBRT) = 200 s; removal capacity (RC) = 26 g m−3 h−1). Moreover, at a total EBRT = 360 s (i.e., 180 s for each stage), the H2S loading rate (LR) was almost treated by the bed of cellular concrete alone, indicating that abiotic filtration could be applied to satisfactorily remove H2S contained in the gas. According to the H2S concentration entering the biotrickling filter, the majority end-product was either elemental sulfur (S0) or sulfate (SO42−). Thus, the ability of the abiotic filter to remove a significant part of H2S would avoid the clogging of the biotrickling filter due to the deposit of S0. Consequently, this two-stage desulfurization process is a promising technology for efficient and economical biogas cleaning adapted to biogas containing limited O2 amounts, such as landfill biogas. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
WOS: 000803313900001 |
| DOI: |
10.3390/en15103762 |
| Availability: |
https://hal.science/hal-03675283; https://hal.science/hal-03675283v1/document; https://hal.science/hal-03675283v1/file/energies-15-03762.pdf; https://doi.org/10.3390/en15103762 |
| Rights: |
http://creativecommons.org/licenses/by/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.9012E8BA |
| Database: |
BASE |