Siloxane removal for biogas purification by low cost mineral adsorbent
| Autor: | Nancy Elizabeth Dávila Guzmán, Luis Ángel Garza Rodríguez, Diana Bustos Martínez, Eduardo Soto Regalado, Sandra Pioquinto García, Sylvain Giraudet, Felipe de Jesús Cerino Córdova |
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| Přispěvatelé: | Universidad Autonoma de Nuevo Leon [Mexique] (UANL), Instituto Tecnológico y de Estudios Superiores de Monterrey (ITESM - also known as Tecnológico de Monterrey or simply as TEC), 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 du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), UANL and Consejo Nacional de Ciencia y Tecnologia de Mexico (Scholarship number 604928)Universidad Autónoma de Nuevo León, UANL, Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
020209 energy
Strategy and Management Biogas Octamethylcyclotetrasiloxane 02 engineering and technology 7. Clean energy Industrial and Manufacturing Engineering Adsorption Desorption Mass transfer Specific surface area Perlite 0202 electrical engineering electronic engineering information engineering medicine [CHIM]Chemical Sciences 0505 law General Environmental Science Isotherm Renewable Energy Sustainability and the Environment Chemistry 05 social sciences Kinetics Chemical engineering 050501 criminology Activated carbon medicine.drug |
| Zdroj: | Journal of Cleaner Production Journal of Cleaner Production, 2021, 286, pp.124940. ⟨10.1016/j.jclepro.2020.124940⟩ Journal of Cleaner Production, Elsevier, 2021, 286, pp.124940. ⟨10.1016/j.jclepro.2020.124940⟩ |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2020.124940⟩ |
| Popis: | International audience; The potential use of raw and expanded perlite as low-cost adsorbents for biogas purification has been investigated. The thermal expansion of perlite causes a reduction in the density of silanol groups from 2515.43 to 653.75 OH/nm2; in contrast, the specific surface area of perlite increased two-fold due to the thermal expansion. To determine the equilibrium adsorption capacity and the adsorption kinetics batch experiments were conducted. The adsorption capacities are in the following order: activated carbon (6.8 mg/g) andgt; silica gel (6.6 mg/g) andgt; expanded perlite (5.8 mg/g) andgt; raw perlite (5.6 mg/g) when compared at the same experimental conditions. The equilibrium adsorption data showed that perlite can be used to reduce the octamethylcyclotetrasiloxane concentration below 28 mg/m3, as recommended by leading manufacturers. The adsorption kinetics of octamethylcyclotetrasiloxane onto raw and expanded perlite followed the Linear-Driving Force model suggesting that the mass transfer is the rate-controlling step. In addition to its low cost, expanded perlite has the advantage of requiring lower desorption temperature (200 °C) for regeneration in comparison to the reported values for activated carbon (andgt;400 °C) and fast desorption kinetics (20 min), which could contribute to a cleaner production of biogas. |
| Databáze: | OpenAIRE |
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