Bio-hydrogen production using metallic catalysts
Autor: | Manuel Mayorga, 'C. J. \\' Castellanos, 'L. A. \\' Suárez, Oscar Suarez, 'J. G. \\' Cadavid, Julio César Vargas, Paulo Narvaez |
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Rok vydání: | 2020 |
Předmět: |
Materials science
Hydrogen 010405 organic chemistry Formic acid General Chemical Engineering Pressure reactor Inorganic chemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Differential scanning calorimetry Catalytic reforming chemistry Zeolite Hydrogen production |
Zdroj: | Revista Mexicana de Ingeniería Química. 19:1103-1115 |
ISSN: | 2395-8472 1665-2738 |
Popis: | Many applications, including energy applications, require handling pressurized hydrogen gas. However, an alternative option allows the use of a donor that generates hydrogen in situ (either by transfer and / or catalytic reforming), instead of using molecular hydrogen. Ethanol and formic acid, which are biorefinery streams, were used as donors. The effect of metallic catalysts of Pd and Pt, supported on C, g-Al2O3 and zeolite USY, on the generation of hydrogen was evaluated using different ratios between the active phase and the donor, and different times and temperatures of reaction in a high pressure reactor (up to 1000 psi). The catalysts were characterized by DRX, SEM, FTIR and FRX. At the same time, High-Pressure Differential Scanning Calorimetry (HP DSC) was performed for the most promising systems with a ramp of 10 °C/min. Gas chromatography was used to analyze the production of hydrogen. Findings show that the system that generates more hydrogen, with 88%, is 5% Pd/C over 30% formic acid at 300 °C, 500 rpm and a ratio catalyst mass to donor from 1 to 10 (0.028 m). |
Databáze: | OpenAIRE |
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