Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG Process
The oxy-steam reforming of liquefied natural gas reaction (OSR-LNG) is promising process for syngas generation. In this paper, the catalytic properties of NiO/La<sub>2</sub>O<sub>3</sub> systems prepared by wet impregnation and co-precipitation methods were extensively invest...
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MDPI AG
2021-09-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/11/10/1174 |
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| author | Magdalena Mosinska Waldemar Maniukiewicz Malgorzata I. Szynkowska-Jozwik Pawel Mierczynski |
| author_facet | Magdalena Mosinska Waldemar Maniukiewicz Malgorzata I. Szynkowska-Jozwik Pawel Mierczynski |
| author_sort | Magdalena Mosinska |
| collection | DOAJ |
| description | The oxy-steam reforming of liquefied natural gas reaction (OSR-LNG) is promising process for syngas generation. In this paper, the catalytic properties of NiO/La<sub>2</sub>O<sub>3</sub> systems prepared by wet impregnation and co-precipitation methods were extensively investigated in OSR-LNG reaction. The physicochemical properties of the studied catalytic materials were determined using various techniques including Temperature programmed reduction (TPR-H<sub>2</sub>), Temperature programmed desorption (TPD-NH<sub>3</sub>), Brunauer, Emmett and Teller (BET), X-ray diffraction (XRD) and Scanning electron microscopy (SEM) with an energy dispersive X-Ray spectrometer (EDS). Reactivity measurements performed in the OSR-LNG process showed that the catalyst preparation method and the calcination temperature significantly affected the activity of NiO/La<sub>2</sub>O<sub>3</sub> catalysts in the OSR-LNG reaction. The catalytic activity tests showed that NiO/La<sub>2</sub>O<sub>3</sub> system prepared by a wet impregnation method and calcined at 700 °C showed the total conversion of the LNG component at 900 °C and the highest H<sub>2</sub> yield at 700 and 900 °C. The phase composition studies confirmed the formation of the LaNiO<sub>3</sub> structure in the case of the NiO/La<sub>2</sub>O<sub>3</sub> catalyst prepared by wet impregnation, calcined at the temperature of 700 °C. Catalytic activity measurements showed that the reactivity of the catalysts was related to their phase composition and acidity. SEM images of spent catalysts showed that the smallest amount of carbon deposit was detected on the surface of the most active systems. |
| first_indexed | 2024-03-10T06:40:54Z |
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| language | English |
| last_indexed | 2024-03-10T06:40:54Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
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| series | Catalysts |
| spelling | doaj.art-d77b981c74d64582aad7877f3d92b41b2023-11-22T17:43:21ZengMDPI AGCatalysts2073-43442021-09-011110117410.3390/catal11101174Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG ProcessMagdalena Mosinska0Waldemar Maniukiewicz1Malgorzata I. Szynkowska-Jozwik2Pawel Mierczynski3Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, PolandInstitute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, PolandInstitute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, PolandInstitute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, PolandThe oxy-steam reforming of liquefied natural gas reaction (OSR-LNG) is promising process for syngas generation. In this paper, the catalytic properties of NiO/La<sub>2</sub>O<sub>3</sub> systems prepared by wet impregnation and co-precipitation methods were extensively investigated in OSR-LNG reaction. The physicochemical properties of the studied catalytic materials were determined using various techniques including Temperature programmed reduction (TPR-H<sub>2</sub>), Temperature programmed desorption (TPD-NH<sub>3</sub>), Brunauer, Emmett and Teller (BET), X-ray diffraction (XRD) and Scanning electron microscopy (SEM) with an energy dispersive X-Ray spectrometer (EDS). Reactivity measurements performed in the OSR-LNG process showed that the catalyst preparation method and the calcination temperature significantly affected the activity of NiO/La<sub>2</sub>O<sub>3</sub> catalysts in the OSR-LNG reaction. The catalytic activity tests showed that NiO/La<sub>2</sub>O<sub>3</sub> system prepared by a wet impregnation method and calcined at 700 °C showed the total conversion of the LNG component at 900 °C and the highest H<sub>2</sub> yield at 700 and 900 °C. The phase composition studies confirmed the formation of the LaNiO<sub>3</sub> structure in the case of the NiO/La<sub>2</sub>O<sub>3</sub> catalyst prepared by wet impregnation, calcined at the temperature of 700 °C. Catalytic activity measurements showed that the reactivity of the catalysts was related to their phase composition and acidity. SEM images of spent catalysts showed that the smallest amount of carbon deposit was detected on the surface of the most active systems.https://www.mdpi.com/2073-4344/11/10/1174hydrogen productionNiO/La<sub>2</sub>O<sub>3</sub> catalystLaNiO<sub>3</sub>NiLa<sub>2</sub>O<sub>4</sub>oxy-steam reforming of liquefied natural gasOSR-LNG |
| spellingShingle | Magdalena Mosinska Waldemar Maniukiewicz Malgorzata I. Szynkowska-Jozwik Pawel Mierczynski Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG Process Catalysts hydrogen production NiO/La<sub>2</sub>O<sub>3</sub> catalyst LaNiO<sub>3</sub> NiLa<sub>2</sub>O<sub>4</sub> oxy-steam reforming of liquefied natural gas OSR-LNG |
| title | Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG Process |
| title_full | Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG Process |
| title_fullStr | Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG Process |
| title_full_unstemmed | Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG Process |
| title_short | Influence of NiO/La<sub>2</sub>O<sub>3</sub> Catalyst Preparation Method on Its Reactivity in the Oxy-Steam Reforming of LNG Process |
| title_sort | influence of nio la sub 2 sub o sub 3 sub catalyst preparation method on its reactivity in the oxy steam reforming of lng process |
| topic | hydrogen production NiO/La<sub>2</sub>O<sub>3</sub> catalyst LaNiO<sub>3</sub> NiLa<sub>2</sub>O<sub>4</sub> oxy-steam reforming of liquefied natural gas OSR-LNG |
| url | https://www.mdpi.com/2073-4344/11/10/1174 |
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