| Autor: |
Santos, Bruna Rijo, Ana Paula Soares Dias, Novi Dwi Saksiwi, Manuel Francisco Costa Pereira, Rodica Zăvoianu, Octavian Dumitru Pavel, Olga Ferreira, Rui Galhano dos |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Reactions; Volume 4; Issue 2; Pages: 295-310 |
| ISSN: |
2624-781X |
| DOI: |
10.3390/reactions4020018 |
| Popis: |
The modern society produces large amounts of household waste with high organic matter content. The vermicomposting of household waste produces high-value humic substances and is a way to stabilize organic material for later use as raw material (3rd generation biomass) for bioenergy proposes. A 6-month matured compost, combining vegetable and fruit scraps from domestic trash and grass and shrub clippings from yard waste, was evaluated to assess its potential as a raw material in pyrolysis processes. The pyrolysis activation energy (Kissinger) of the composted material showed values in the range of 200–300 kJ/mol, thus confirming its suitability for pyrolysis processes with promising H2 yields. The treatment of the composted material with H2SO4 and NaOH solution (boiling; 1 mol/L) led to the production of solid residues that present higher pyrolysis activation energies, reaching 550 kJ/mol for the most resilient fraction, which makes them suitable to produce carbonaceous materials (biochar) that will have incorporated the inorganics existing in the original compost (ashes 37.6%). The high content of inorganics would play a chief role during pyrolysis since they act as gasification promoters. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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