Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
Deactivation of a bulk catalyst derived from NiAl2O4 spinel during the oxidative steam reforming (OSR) of raw bio-oil has been studied. The experiments were performed in a continuous system with two units in series: a thermal treatment unit at 500 ºC for the controlled deposition of pyrolytic lignin...
| Authors: | ; ; ; ; |
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| Format: | Article |
| Publication date: | 2020 |
| Country: | España |
| Institution: | Universidad del País Vasco |
| Repository: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/65466 |
| Online Access: | http://hdl.handle.net/10810/65466 |
| Access Level: | Open access |
| Keyword: | bio-oil hydrogen oxidative steam reforming Ni catalyst deactivation coke |
| _version_ | 1878738502309380096 |
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| author | Arandia Gutiérrez, Aitor |
| author2 | Remiro Eguskiza, Aingeru Oar Arteta, Lide Bilbao Elorriaga, Javier Gayubo Cazorla, Ana Guadalupe |
| author2_role | author author author author |
| author_browse | Arandia Gutiérrez, Aitor Bilbao Elorriaga, Javier Gayubo Cazorla, Ana Guadalupe Oar Arteta, Lide Remiro Eguskiza, Aingeru |
| author_facet | Arandia Gutiérrez, Aitor Remiro Eguskiza, Aingeru Oar Arteta, Lide Bilbao Elorriaga, Javier Gayubo Cazorla, Ana Guadalupe |
| author_role | author |
| collection | Addi. Archivo Digital para la Docencia y la Investigación |
| description | Deactivation of a bulk catalyst derived from NiAl2O4 spinel during the oxidative steam reforming (OSR) of raw bio-oil has been studied. The experiments were performed in a continuous system with two units in series: a thermal treatment unit at 500 ºC for the controlled deposition of pyrolytic lignin, and a fluidized bed reactor (700 ºC; S/C, 6; O/C, 0.34; space time, 0.15 gcatalysth·gbio-oil-1; time on stream, 1, 2, 4 and 6 h) for the OSR of the remaining oxygenates. The deactivation affects the reforming of bio-oil oxygenates according to their reactivity (from lower to higher), with the reforming of phenols being rapidly affected. The causes of deactivation are: i) coke deposition on the Ni0 sites and on the Al2O3 support (6 wt % of each coke type after 6 h on stream), and; ii) sintering of Ni0 crystals (with an increase in crystal size from 10.8 to 17.7 nm (measured by TEM)). The catalyst deactivation rate increases with time on stream, with the bio-oil oxygenates being the main coke precursors |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_b00bd5debbf4b8e049fcff7697d41fcd |
| institution | Universidad del País Vasco |
| instname_str | Universidad del País Vasco |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:addi.ehu.eus:10810/65466 |
| publishDate | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | Addi. Archivo Digital para la Docencia y la Investigación |
| spelling | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil Arandia Gutiérrez, Aitor Remiro Eguskiza, Aingeru Oar Arteta, Lide Bilbao Elorriaga, Javier Gayubo Cazorla, Ana Guadalupe bio-oil hydrogen oxidative steam reforming Ni catalyst deactivation coke Deactivation of a bulk catalyst derived from NiAl2O4 spinel during the oxidative steam reforming (OSR) of raw bio-oil has been studied. The experiments were performed in a continuous system with two units in series: a thermal treatment unit at 500 ºC for the controlled deposition of pyrolytic lignin, and a fluidized bed reactor (700 ºC; S/C, 6; O/C, 0.34; space time, 0.15 gcatalysth·gbio-oil-1; time on stream, 1, 2, 4 and 6 h) for the OSR of the remaining oxygenates. The deactivation affects the reforming of bio-oil oxygenates according to their reactivity (from lower to higher), with the reforming of phenols being rapidly affected. The causes of deactivation are: i) coke deposition on the Ni0 sites and on the Al2O3 support (6 wt % of each coke type after 6 h on stream), and; ii) sintering of Ni0 crystals (with an increase in crystal size from 10.8 to 17.7 nm (measured by TEM)). The catalyst deactivation rate increases with time on stream, with the bio-oil oxygenates being the main coke precursors his work was carried out with the financial support of the Department of Education Universities and Investigation of the Basque Government (IT1218-19), the European Commission (HORIZON H2020-MSCA RISE 2018. Contract No. 823745) and the Ministry of Economy and Competitiveness of the Spanish Government jointly with the European Regional Development Funds (AEI/FEDER, UE) (Projects CTQ2015-68883-R and RTI2018-100771-B-I00) and Ph.D. grant BES- 2013-063639 for A. Arandia). Elsevier http://hdl.handle.net/10810/65466 |
| spellingShingle | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil Arandia Gutiérrez, Aitor bio-oil hydrogen oxidative steam reforming Ni catalyst deactivation coke |
| title | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil |
| title_full | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil |
| title_fullStr | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil |
| title_full_unstemmed | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil |
| title_short | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil |
| title_sort | Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil |
| topic | bio-oil hydrogen oxidative steam reforming Ni catalyst deactivation coke |
| topic_facet | bio-oil hydrogen oxidative steam reforming Ni catalyst deactivation coke |
| url | http://hdl.handle.net/10810/65466 |