Publicación: CATALYTIC CONVERSION OF MODEL TARS OVER CARBON-SUPPORTED NI AND FE.
| dc.creator | LUIS ERNESTO ARTEAGA PÉREZ | |
| dc.date | 2018 | |
| dc.date.accessioned | 2025-01-10T15:02:16Z | |
| dc.date.available | 2025-01-10T15:02:16Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | TAR REMOVAL FROM GASIFICATION GASES IS A DETERMINANT STEP TO GUARANTEE THE OPERATIONAL FEASIBILITY OF GASIFICATION-TO-CHEMICALS/ENERGY SYSTEMS. THIS STUDY AIMED TO DEVELOP NOVEL CARBON-SUPPORTED CATALYSTS FOR THE ELIMINATION OF TARRY AROMATICS (TOLUENE, NAPHTHALENE AND BENZENE) FROM GASIFICATION GASES. EFFECTS OF REACTION TEMPERATURE (700 < T < 900 °C) AND CATALYST NATURE (FE0 AND NI0) ON THE ACTIVITY WERE ASSESSED BY CONSIDERING THERMO-CATALYTIC CONVERSION AND STEAM REFORMING, UNDER A SIMULATED GASIFICATION GAS. THE CATALYSTS (NI AND FE) AND SUPPORT (AC) WERE CHARACTERIZED BY X-RAY DIFFRACTION (XRD), N2 PHYSISORPTION, THERMOGRAVIMETRIC ANALYSIS (TGA), TRANSMISSION ELECTRON MICROSCOPY (TEM) AND COMPOSITIONAL ANALYSES. BOTH CATALYSTS AND SUPPORT, PRESENTED A MESOPOROUS-LIKE TEXTURE WITH A CONSIDERABLE HIGH SURFACE AREA (690 < SBET < 743 M2/G). FURTHERMORE, DISPERSION OF THE METAL NANOPARTICLES (ACTIVE PHASE) WAS UNIFORM AS CONFIRMED BY TEM IMAGES. RESULTS FROM ACTIVITY TESTS SUGGEST THAT NI/AC HAS HIGHER EFFECTIVITY FOR CONVERTING TARS THAN FE/AC, AS CONFIRMED BY THE LOW APPARENT ACTIVATION ENERGIES (34 < EAPP < 98 KJ/MOL) FOR NAPHTHALENE AND BENZENE CONVERSION BETWEEN 700 AND 900 °C. THE CONVERSION WAS 100% ABOVE 850 °C; NEVERTHELESS; BELOW 750 °C, A SHARP REDUCTION IN BENZENE CONVERSION WAS OBSERVED, WHICH WAS ATTRIBUTED TO REVERSIBLE CARBON DEPOSITION. | |
| dc.format | application/pdf | |
| dc.identifier.doi | 10.3390/catal8030119 | |
| dc.identifier.issn | 2073-4344 | |
| dc.identifier.issn | 2073-4344 | |
| dc.identifier.uri | https://repositorio.ubiobio.cl/handle/123456789/10116 | |
| dc.language | spa | |
| dc.publisher | Catalysts | |
| dc.relation.uri | 10.3390/catal8030119 | |
| dc.rights | PUBLICADA | |
| dc.title | CATALYTIC CONVERSION OF MODEL TARS OVER CARBON-SUPPORTED NI AND FE. | |
| dc.title.alternative | CONVERSIÓN CATALÍTICA DE ALQUITRANES MODELO SOBRE NI Y FE SOPORTADOS POR CARBONO | |
| dc.type | ARTÍCULO | |
| dspace.entity.type | Publication | |
| ubb.Estado | PUBLICADA | |
| ubb.Otra Reparticion | DEPARTAMENTO DE INGENIERIA EN MADERAS | |
| ubb.Sede | CONCEPCIÓN |
