Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane Reactor
This study proposes a new dense membrane for selectively separating CO<sub>2</sub> and O<sub>2</sub> at high temperatures and simultaneously producing syngas. The membrane consists of a cermet-type material infiltrated with a ternary carbonate phase. Initially, the co-doped c...
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2024-10-01
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| author | José A. Raya-Colín José A. Romero-Serrano Cristian Carrera-Figueiras José A. Fabián-Anguiano Heberto Balmori-Ramírez Oscar Ovalle-Encinia José Ortiz-Landeros |
| author_facet | José A. Raya-Colín José A. Romero-Serrano Cristian Carrera-Figueiras José A. Fabián-Anguiano Heberto Balmori-Ramírez Oscar Ovalle-Encinia José Ortiz-Landeros |
| author_sort | José A. Raya-Colín |
| collection | DOAJ |
| description | This study proposes a new dense membrane for selectively separating CO<sub>2</sub> and O<sub>2</sub> at high temperatures and simultaneously producing syngas. The membrane consists of a cermet-type material infiltrated with a ternary carbonate phase. Initially, the co-doped ceria of composition Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub> (CZY) was synthesized by using the conventional solid-state reaction method. Then, the ceramic was mixed with commercial silver powders using a ball milling process and subsequently uniaxially pressed and sintered to form the disk-shaped cermet. The dense membrane was finally formed via the infiltration of molten salts into the porous cermet supports. At high temperatures (700–850 °C), the membranes exhibit CO<sub>2</sub>/N<sub>2</sub> and O<sub>2</sub>/N<sub>2</sub> permselectivity and a high permeation flux under different CO<sub>2</sub> concentrations in the feed and sweeping gas flow rates. The observed permeation properties make its use viable for CO<sub>2</sub> valorization via the oxy-CO<sub>2</sub> reforming of methane, wherein both CO<sub>2</sub> and O<sub>2</sub> permeated gases were effectively utilized to produce hydrogen-rich syngas (H<sub>2</sub> + CO) through a catalytic membrane reactor arrangement at different temperatures ranging from 700 to 850 °C. The effect of the ceramic filler in the cermet is discussed, and continuous permeation testing, up to 115 h, demonstrated the membrane’s superior chemical and thermal stability by confirming the absence of any chemical interaction between the material and the carbonates as well as the absence of significant sintering concerns with the pure silver. |
| format | Article |
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| institution | OA Journals |
| issn | 2305-7084 |
| language | English |
| publishDate | 2024-10-01 |
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| series | ChemEngineering |
| spelling | doaj-art-833079f47400490f8d7f565ecb115caa2025-08-20T02:10:59ZengMDPI AGChemEngineering2305-70842024-10-018510610.3390/chemengineering8050106Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane ReactorJosé A. Raya-Colín0José A. Romero-Serrano1Cristian Carrera-Figueiras2José A. Fabián-Anguiano3Heberto Balmori-Ramírez4Oscar Ovalle-Encinia5José Ortiz-Landeros6Instituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Industrias Extractivas, Departamento de Ingeniería en Metalurgia y Materiales, UPALM-Zacatenco, IPN Avenue, México City 07738, MexicoInstituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Industrias Extractivas, Departamento de Ingeniería en Metalurgia y Materiales, UPALM-Zacatenco, IPN Avenue, México City 07738, MexicoFacultad de Ingeniería Química, Universidad Autónoma de Yucatán, Campus de Ciencias Exactas e Ingenierías, Periférico Norte, Km. 33.5, Tablaje Catastral 13615, Col. Chuburná de Hidalgo Inn, Mérida 97203, MexicoInstituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Industrias Extractivas, Departamento de Ingeniería en Metalurgia y Materiales, UPALM-Zacatenco, IPN Avenue, México City 07738, MexicoInstituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Industrias Extractivas, Departamento de Ingeniería en Metalurgia y Materiales, UPALM-Zacatenco, IPN Avenue, México City 07738, MexicoDepartamento de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Av. San Rafael Atlixco 186, México City 09340, MexicoInstituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Industrias Extractivas, Departamento de Ingeniería en Metalurgia y Materiales, UPALM-Zacatenco, IPN Avenue, México City 07738, MexicoThis study proposes a new dense membrane for selectively separating CO<sub>2</sub> and O<sub>2</sub> at high temperatures and simultaneously producing syngas. The membrane consists of a cermet-type material infiltrated with a ternary carbonate phase. Initially, the co-doped ceria of composition Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub> (CZY) was synthesized by using the conventional solid-state reaction method. Then, the ceramic was mixed with commercial silver powders using a ball milling process and subsequently uniaxially pressed and sintered to form the disk-shaped cermet. The dense membrane was finally formed via the infiltration of molten salts into the porous cermet supports. At high temperatures (700–850 °C), the membranes exhibit CO<sub>2</sub>/N<sub>2</sub> and O<sub>2</sub>/N<sub>2</sub> permselectivity and a high permeation flux under different CO<sub>2</sub> concentrations in the feed and sweeping gas flow rates. The observed permeation properties make its use viable for CO<sub>2</sub> valorization via the oxy-CO<sub>2</sub> reforming of methane, wherein both CO<sub>2</sub> and O<sub>2</sub> permeated gases were effectively utilized to produce hydrogen-rich syngas (H<sub>2</sub> + CO) through a catalytic membrane reactor arrangement at different temperatures ranging from 700 to 850 °C. The effect of the ceramic filler in the cermet is discussed, and continuous permeation testing, up to 115 h, demonstrated the membrane’s superior chemical and thermal stability by confirming the absence of any chemical interaction between the material and the carbonates as well as the absence of significant sintering concerns with the pure silver.https://www.mdpi.com/2305-7084/8/5/106carbon dioxidehydrogen fuelsmembrane reactorsoxy-CO<sub>2</sub> reformingsyngas |
| spellingShingle | José A. Raya-Colín José A. Romero-Serrano Cristian Carrera-Figueiras José A. Fabián-Anguiano Heberto Balmori-Ramírez Oscar Ovalle-Encinia José Ortiz-Landeros Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane Reactor ChemEngineering carbon dioxide hydrogen fuels membrane reactors oxy-CO<sub>2</sub> reforming syngas |
| title | Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane Reactor |
| title_full | Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane Reactor |
| title_fullStr | Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane Reactor |
| title_full_unstemmed | Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane Reactor |
| title_short | Hydrogen-Rich Syngas Production in a Ce<sub>0.9</sub>Zr<sub>0.05</sub>Y<sub>0.05</sub>O<sub>2−δ</sub>/Ag and Molten Carbonates Membrane Reactor |
| title_sort | hydrogen rich syngas production in a ce sub 0 9 sub zr sub 0 05 sub y sub 0 05 sub o sub 2 δ sub ag and molten carbonates membrane reactor |
| topic | carbon dioxide hydrogen fuels membrane reactors oxy-CO<sub>2</sub> reforming syngas |
| url | https://www.mdpi.com/2305-7084/8/5/106 |
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