| Autor: |
Isabela R. Teixeira, Isabela M. Dias, Lucas C. Mourão, Laiane A. Andrade, Leandro V. Pavão, Jose M. Abelleira-Pereira, Guilherme B. M. Souza, Lucio Cardozo-Filho, Christian G. Alonso, Reginaldo Guirardello |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Water, Vol 15, Iss 23, p 4062 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2073-4441 |
| DOI: |
10.3390/w15234062 |
| Popis: |
This study reports the continuous production of H2 from the wastewater effluent of the biodiesel industry in a medium containing water under supercritical conditions. The effects of temperature and feed flow rate on the generation of hydrogen were evaluated and optimized. At a temperature of 700 °C and a 17.5 mL/min feed flow, a total gas flow of 5541 NmL/min was achieved. Among all identified gases, hydrogen represented the highest molar fraction of 73%. Under optimized conditions, a H2 yield of 357 NmL/geffluent feed was observed. The experimental results indicate a significant increase in the H2 production at the highest experimented temperatures. On the other hand, the feed flow only slightly influenced the process within the assessed range but showed a tendency to increase the H2 production at the highest values. Finally, information on energy efficiency optimization and scale-up are presented, and at the same time, different designs for industrial implementation of the hydrothermal gasification process are proposed. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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