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Thermodynamic parameter for steam reforming reaction of biodiesel by-product using nano-sized perovskite catalysts


 
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1. Title Title of document Thermodynamic parameter for steam reforming reaction of biodiesel by-product using nano-sized perovskite catalysts
 
2. Creator Author's name, affiliation, country D. Aman, D. R. Abd El-Hafiz, M. A. Ebiad; Egypt
 
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4. Description Abstract The catalytic steam reforming of biodiesel by-product (glycerol) GSR for hydrogen production was carried out using perovskite nano-catalysts (LaNiO3 and LaCoO3).The two catalysts were prepared by the reverse microemulsion method and characterized by XRD, by TG/DTA, BET and HRTEM. Equilibrium product compositions of GSR reaction were determined at different reaction temperature (400-700oC) with glycerol: water molar ratio 1: 10 in a fixed-bed flow system under atmospheric pressure. The equilibrium constant and thermodynamics parameters (ΔG, ΔH and ΔS) were calculated. The results revealed that, the conversion of the glycerol gradually increases with reaction temperature until reached 100% at temperature 700oC. LaNiO3 show higher gas product than LaCoO3 at the same reaction temperature. Moreover, H2 yield increased from 0.11 to 3.15 for LaNiO3 and 0.01 to 1.33 for LaCoO3. On the other hand, LaCoO3 provided more deactivation resistant along to 16h than LaNiO3. XRD analysis of spent catalysts revealed the presence of La2O2CO3 phase. On using LaNiO3, the produced product at 700oC was found to have a moderate calorific value (284.706 Btu/ft3) as compared to highcalorific value on using LaCoO3 (434.785 Btu/ft3) at 600oC due to the low yield of CO2 (15 mol %).
 
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7. Date (YYYY-MM-DD) 29-04-2018
 
8. Type Status & genre Peer-reviewed Article
 
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9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/morjchem/article/view/6444
 
10. Identifier Digital Object Identifier (DOI) https://doi.org/10.48317/IMIST.PRSM/morjchem-v6i3.6444
 
11. Source Title; vol., no. (year) Moroccan Journal of Chemistry; Vol 6, No 3 (2018)
 
12. Language English=en en
 
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15. Rights Copyright and permissions Copyright (c) 2018 Moroccan Journal of Chemistry