Exergy analysis of glycerol steam reforming in a heat recovery reactor
| Autor: | Paulo Alexandre Costa Rocha, Igor Teles Fernandes, Felipe Dias, André Valente Bueno, Mona Lisa Moura de Oliveira |
|---|---|
| Jazyk: | portugalština |
| Rok vydání: | 2021 |
| Předmět: |
Exergy
Biodiesel sub-product Waste management Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Tar 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Diesel engine 01 natural sciences 0104 chemical sciences Heat recovery steam reforming Steam reforming Exergy analysis Fuel Technology Glycerol reforming Heat recovery ventilation Exergy efficiency Hydrogen production Environmental science Char 0210 nano-technology Syngas |
| Zdroj: | Repositório Institucional da Universidade Federal do Ceará (UFC) Universidade Federal do Ceará (UFC) instacron:UFC |
| Popis: | A detailed exergy analysis was performed for the steam reforming process of glycerol by means of a series of experiments in a bench scale apparatus. The reforming was conducted in a fixed bed reactor, which operated in heat recovery mode by extracting the demanded energy from hot exhaust gases provided by a diesel engine. In order to determine the role of the main operational parameters into the exergy efficiency of the studied process, the experiments were carried out with glycerol feed concentrations in water ranging from 10% up to 90% weight, whereas the outlet reactor temperature was varied from 600 °C up to 800 °C. Detailed exergy balances revealed a compromise between the exergy destruction within the reforming reactor and liquid separator versus the exergy losses associated to the tar and char outputs. This trade-off was favourable to the 50% and 70% glycerol feed concentration regimes and plateaus of about 74% exergy efficiency and 24 MJ/kg dry syngas exergy content were verified from 650 to 800 °C reactor temperatures. |
| Databáze: | OpenAIRE |
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