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Catalytic Fast Pyro...
Catalytic Fast Pyrolysis of Lignin Isolated by Hybrid Organosolv—Steam Explosion Pretreatment of Hardwood and Softwood Biomass for the Production of Phenolics and Aromatics
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- Charisteidis, Ioannis (author)
- Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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- Lazaridis, Polykarpos (author)
- Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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- Fotopoulos, Apostolos (author)
- Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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- Pachatouridou, Eleni (author)
- Chemical Process and Energy Resources Institute, Centre for Research and Technology-Hellas (CPERI/CERTH), Thessaloniki, Greece
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- Matsakas, Leonidas (author)
- Luleå tekniska universitet,Kemiteknik
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- Rova, Ulrika (author)
- Luleå tekniska universitet,Kemiteknik
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- Christakopoulos, Paul (author)
- Luleå tekniska universitet,Kemiteknik
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- Triantafyllidis, Konstantinos (author)
- Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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(creator_code:org_t)
- 2019-11-08
- 2019
- English.
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In: Catalysts. - : MDPI. - 2073-4344. ; 9:11
- Related links:
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Subject headings
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- Lignin, one of the three main structural biopolymers of lignocellulosic biomass, is the most abundant natural source of aromatics with a great valorization potential towards the production of fuels, chemicals, and polymers. Although kraft lignin and lignosulphonates, as byproducts of the pulp/paper industry, are available in vast amounts, other types of lignins, such as the organosolv or the hydrolysis lignin, are becoming increasingly important, as they are side-streams of new biorefinery processes aiming at the (bio)catalytic valorization of biomass sugars. Within this context, in this work, we studied the thermal (non-catalytic) and catalytic fast pyrolysis of softwood (spruce) and hardwood (birch) lignins, isolated by a hybrid organosolv–steam explosion biomass pretreatment method in order to investigate the effect of lignin origin/composition on product yields and lignin bio-oil composition. The catalysts studied were conventional microporous ZSM-5 (Zeolite Socony Mobil–5) zeolites and hierarchical ZSM-5 zeolites with intracrystal mesopores (i.e., 9 and 45 nm) or nano-sized ZSM-5 with a high external surface. All ZSM-5 zeolites were active in converting the initially produced via thermal pyrolysis alkoxy-phenols (i.e., of guaiacyl and syringyl/guaiacyl type for spruce and birch lignin, respectively) towards BTX (benzene, toluene, xylene) aromatics, alkyl-phenols and polycyclic aromatic hydrocarbons (PAHs, mainly naphthalenes), with the mesoporous ZSM-5 exhibiting higher dealkoxylation reactivity and being significantly more selective towards mono-aromatics compared to the conventional ZSM-5, for both spruce and birch lignin.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioprocessteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioprocess Technology (hsv//eng)
Keyword
- spruce and birch wood lignin
- hybrid organosolv—steam explosion pretreatment
- catalytic fast pyrolysis
- model compounds
- bio-oil
- phenolics and aromatics
- microporous and hierarchical ZSM-5 zeolite
- Biokemisk processteknik
- Biochemical Process Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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