Please use this identifier to cite or link to this item:
https://doi.org/10.4028/www.scientific.net/AMR.71-73.665
DC Field | Value | |
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dc.title | Fungal bioleaching of spent hydroprocessing catalyst: Effect of decoking and particle size | |
dc.contributor.author | Islam, M. | |
dc.contributor.author | Ting, Y.P. | |
dc.date.accessioned | 2014-06-19T06:14:19Z | |
dc.date.available | 2014-06-19T06:14:19Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Islam, M., Ting, Y.P. (2009). Fungal bioleaching of spent hydroprocessing catalyst: Effect of decoking and particle size. Advanced Materials Research 71-73 : 665-668. ScholarBank@NUS Repository. https://doi.org/10.4028/www.scientific.net/AMR.71-73.665 | |
dc.identifier.isbn | 0878493220 | |
dc.identifier.issn | 10226680 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/74604 | |
dc.description.abstract | This work reports on the bioleaching of spent NiMo catalyst using Aspergillus niger. As-received and decoked catalysts of various sizes (as-received, 180-120 μm, 120-45 μm and <45 μm) were examined. Chemical analysis of the spent catalyst confirmed the presence of heavy metals including Al (38.2%), Ni (3.36%), and Mo (12.9%). SEM-EDX analysis revealed a change in the metal distribution within the spent catalyst following the decoking process. In one-step bioleaching where the fungus was inoculated together with the catalyst, fungal growth was not observed. In 2-step bioleaching where the catalyst was added three days after the start of the fungal incubation, the highest Mo (87.3%) and Al (17.20%) leaching efficiencies were obtained from the catalyst of smallest particle size (i.e. decoked grounded; <45μm) while the highest Ni leaching efficiency (94%) was achieved from the as-received spent catalyst. © (2009) Trans Tech Publications. | |
dc.source | Scopus | |
dc.subject | Aspergillus niger | |
dc.subject | Bioleaching | |
dc.subject | Decoking | |
dc.subject | Metal recovery | |
dc.subject | Spent catalyst | |
dc.type | Conference Paper | |
dc.contributor.department | CHEMICAL & BIOMOLECULAR ENGINEERING | |
dc.description.doi | 10.4028/www.scientific.net/AMR.71-73.665 | |
dc.description.sourcetitle | Advanced Materials Research | |
dc.description.volume | 71-73 | |
dc.description.page | 665-668 | |
dc.identifier.isiut | 000273541600151 | |
Appears in Collections: | Staff Publications |
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