Sökning: WFRF:(Ho Hoang Phuoc 1983) >
One-pot reductive l...
One-pot reductive liquefaction of sawdust to renewables over MoO x -Al 2 O 3 variants: insight into structure-activity relationships
-
- Salam, Muhammad Abdus, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Tran, Quoc Khanh, 1992 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Ho, Hoang Phuoc, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
visa fler...
-
- Cheah, You Wayne, 1993 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Wojtasz-Mucha, Joanna, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Kugge, Christian (författare)
- SCA Research AB
-
- Nejadmoghadam, Elham, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Olsson, Louise, 1974 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Creaser, Derek Claude, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
visa färre...
-
(creator_code:org_t)
- 2024
- 2024
- Engelska.
-
Ingår i: Sustainable Energy and Fuels. - 2398-4902. ; 8:12, s. 2668-2681
- Relaterad länk:
-
https://research.cha... (primary) (free)
-
visa fler...
-
https://research.cha...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Valorization of forest residual products can offer a vital pathway to derive bio-based chemicals and fuel components. Herein, we report the effective and direct conversion of sawdust biomass over a supported Mo-oxide catalyst that results in a dominant fraction of aliphatic/cyclic alkanes and alkylbenzenes with low residual solids. The reductive liquefaction was conducted in an autoclave reactor using a series of MoOx-Al2O3 variants in the range of 340-400 °C with an initial H2 pressure of 35 bar for 4 h. At 340 °C, a correlation between Mo-loadings and reactivity for depolymerization and hydrodeoxygenation was found optimal for a surface density of 3.2 Mo-atoms per nm2 corresponding to 8 wt% Mo-loading. The liquefied fraction showed high selectivity (∼38%) for the formation of cycloalkanes and alkylbenzenes. At higher temperatures (400 °C) enhanced reactivity over the optimal catalyst showed higher cycloalkane and alkylbenzenes formation (∼57%) at a low biomass-to-catalyst feed mass ratio (3 : 1). At a higher ratio (10 : 1), alkylphenols (∼41%) are the leading product fraction followed by cycloalkanes and alkylbenzenes (∼34%) with a high liquefied monomer bio-oil product yield of 39.4 wt%. Catalyst characterization via XRD, Raman, H2-TPR, and XPS analysis revealed that the origin for this reactivity arises from the Mo species formed and stabilized over the support surface. A well dispersed, octahedral, higher fraction of easily reducible Mo-species (Mo5+) was evident over the optimal catalyst which enables enhanced C-O cleavage facilitating the hydrodeoxygenation reaction. Moreover, the solid residue yield could be reduced to below 5 wt% by optimizing the reaction conditions and particle size of the sawdust.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Salam, Muhammad ...
-
Tran, Quoc Khanh ...
-
Ho, Hoang Phuoc, ...
-
Cheah, You Wayne ...
-
Wojtasz-Mucha, J ...
-
Kugge, Christian
-
visa fler...
-
Nejadmoghadam, E ...
-
Olsson, Louise, ...
-
Creaser, Derek C ...
-
visa färre...
- Om ämnet
-
- TEKNIK OCH TEKNOLOGIER
-
TEKNIK OCH TEKNO ...
-
och Kemiteknik
-
och Kemiska processe ...
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
-
och Atom och molekyl ...
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Kemi
-
och Organisk kemi
- Artiklar i publikationen
-
Sustainable Ener ...
- Av lärosätet
-
Chalmers tekniska högskola