dc.creator | González Castañeda, Daniel Gibran | |
dc.creator | Sanchez Enríquez, Adriana | |
dc.creator | Cruz Reyes, Ivan | |
dc.creator | Calzada Hernández, Alan Rubén | |
dc.creator | Serrano Rosales, Benito | |
dc.date.accessioned | 2021-06-18T04:01:16Z | |
dc.date.accessioned | 2022-10-14T15:14:07Z | |
dc.date.available | 2021-06-18T04:01:16Z | |
dc.date.available | 2022-10-14T15:14:07Z | |
dc.date.created | 2021-06-18T04:01:16Z | |
dc.date.issued | 2019 | |
dc.identifier | 1542-6580 | |
dc.identifier | http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/2602 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4247404 | |
dc.description.abstract | Six different Ni-based fluidizable catalysts were synthesized using both incipient impregnation and co-
impregnation. Ni-based catalysts were also promoted with 2.0 wt% La or alternatively with 2 wt% Ce. The
preparation procedure included catalysts treated at high temperatures and under free of oxygen conditions.
Catalysts were characterized using BET, XRD, AA, PSD, TPR, TPD, H2-chemisorption. TPR and H2 chemisorp-tion showed good metal dispersion with 10 nm- 40 nm metal crystallites.
Glucose catalytic gasification runs were performed in a CREC Riser Simulator to evaluate the following cata-
lysts: (a) 5 %Ni/γ-Al2O3, (b) 5 %Ni-2 %La/γ-Al2O3 and (c) 5 %Ni-2 %Ce/γ-Al2O3. In all cases, the preparation
steps involved acid solutions with pHs of 1 and 4. In between consecutive runs, different approaches were
considered: (a) A catalyst was regenerated by air, (b) A catalyst was regenerated by air followed by hydrogen
pretreatment, (c) A catalyst was reused directly without any regeneration or hydrogen pretreatment. It was
observed that Ni-based catalysts, which were subjected after every run, to both, air regeneration and hydro-
gen pretreatment, displayed the best yields in close agreement with thermodynamic equilibrium. On the other
hand, Ni-based catalysts regenerated with air only, showed the worst hydrogen yields. In between these two-
hydrogen yield limits, where catalysts not contacted with air nor hydrogen, with these yields being moderately
below chemical equilibrium.
This shows that Ni-based fluidizable catalysts can perform on stream for extended periods, requiring limited
reactivation with air and H2. This makes of gasification using the catalysts of the present study, a viable process alternative that could be implemented at industrial scale. | |
dc.language | eng | |
dc.publisher | De Gruyter | |
dc.relation | generalPublic | |
dc.relation | https://www.degruyter.com/document/doi/10.1515/ijcre-2019-0104/html | |
dc.rights | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | |
dc.rights | Atribución-NoComercial-CompartirIgual 3.0 Estados Unidos de América | |
dc.source | International Journal of Chemical Reactor Engineering Vol 17, No. 11, pp. 1-17 | |
dc.title | Catalytic Steam Gasification of Glucose for Hydrogen Production Using Stable Based Ni on a γ–Alumina Fluidizable Catalyst | |
dc.type | Artículos de revistas | |