| Title | Fluidized bed gasification of biomass from plant-assisted bioremediation: Fate of contaminants |
| Abstract | Fluidized-bed gasification (FBG) of Phyto-assisted Bioremediation (PABR) biomass is analyzed focusing on the contaminants' dispersion. Poplar pruning coming from an area contaminated by polychlorinated biphenyls (PCBs) and heavy metals (HM) are considered. The biomass analysis showed relevant contents in HMs, especially Cd and Cr, and no significant PCB content. FBG process was analyzed to: a) track pollutants, b) detect con taminants in the FBG and c) investigate the HMs concentration in the produced streams. The results showed that most of the metals are concentrated in the ashes collected in the bottom of the reactor (Pb, Cd, Cu, Cr), or in the cyclone (B, Na, Mg, Al, K and Fe). Interestingly, metals are also released by the olivine bed (Mg, Fe, Ni and Al) and transported downstream. Consistent fractions of Zn and Fe (also Cu) were detected in the fugitive ashes. As for the Volatile Organic Compounds (VOC) concentration, we noted similarities between PABR and virgin biomass syngas streams. A reduced-scale process was carried out in TGA-DTA to investigate the potential of such technique in reproducing the main features of the FBG process. Comparable results were obtained, thus sug gesting its possible application for small-scale preliminary assessment of FBG process. |
| Source | Sustainable Energy Technologies and Assessments 53 (102458) |
| Keywords | Fluidized bed gasificationHeavy metalsPolychlorinated biphenylsVolatile organic compoundsPlant-assisted bioremediationTGA-DTA |
| Journal | Sustainable Energy Technologies and Assessments |
| Editor | Elsevier, , |
| Year | 2022 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.seta.2022.102458 |
| Authors | Francesco Gallucci a , Enrico Paris a , Adriano Palma a , Beatrice Vincenti a , Monica Carnevale a , Valeria Ancona b , Domenico Borello c, * |
| Text | 468727 2022 10.1016/j.seta.2022.102458 Fluidized bed gasification Heavy metals Polychlorinated biphenyls Volatile organic compounds Plant assisted bioremediation TGA DTA Fluidized bed gasification of biomass from plant assisted bioremediation Fate of contaminants Francesco Gallucci a , Enrico Paris a , Adriano Palma a , Beatrice Vincenti a , Monica Carnevale a , Valeria Ancona b , Domenico Borello c, a CREA, Italy b Istituto di Ricerca Sulle Acque del Consiglio Nazionale delle Ricerche, Bari, Italy c Dipartimento di Ingegneria Meccanica e Aerospaziale, Universit`a di Roma La Sapienza, Italy Fluidized bed gasification FBG of Phyto assisted Bioremediation PABR biomass is analyzed focusing on the contaminants dispersion. Poplar pruning coming from an area contaminated by polychlorinated biphenyls PCBs and heavy metals HM are considered. The biomass analysis showed relevant contents in HMs, especially Cd and Cr, and no significant PCB content. FBG process was analyzed to a track pollutants, b detect con taminants in the FBG and c investigate the HMs concentration in the produced streams. The results showed that most of the metals are concentrated in the ashes collected in the bottom of the reactor Pb, Cd, Cu, Cr , or in the cyclone B, Na, Mg, Al, K and Fe . Interestingly, metals are also released by the olivine bed Mg, Fe, Ni and Al and transported downstream. Consistent fractions of Zn and Fe also Cu were detected in the fugitive ashes. As for the Volatile Organic Compounds VOC concentration, we noted similarities between PABR and virgin biomass syngas streams. A reduced scale process was carried out in TGA DTA to investigate the potential of such technique in reproducing the main features of the FBG process. Comparable results were obtained, thus sug gesting its possible application for small scale preliminary assessment of FBG process. 53 Published version Fluidized bed gasification of biomass from plant assisted bioremediation Fate of contaminants articolo pdf Gallucci et al._SETA_2022.pdf Articolo in rivista Elsevier 2213 1388 Sustainable Energy Technologies and Assessments Sustainable Energy Technologies and Assessments valeria.ancona ANCONA VALERIA |
