Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of Biorefining
This study seeks to improve the effectiveness of the pretreatment stage when direct furfural production is integrated into the concept of a lignocellulosic biomass biorefinery. First of all, the catalytic effects of different phosphorus-containing salts (AlPO₄, Ca₃(PO₄)₂, FePO₄, H₃PO₄, NaH₂PO₄) were...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/27/21/7353 |
| _version_ | 1797467083884199936 |
|---|---|
| author | Prans Brazdausks Daniela Godina Maris Puke |
| author_facet | Prans Brazdausks Daniela Godina Maris Puke |
| author_sort | Prans Brazdausks |
| collection | DOAJ |
| description | This study seeks to improve the effectiveness of the pretreatment stage when direct furfural production is integrated into the concept of a lignocellulosic biomass biorefinery. First of all, the catalytic effects of different phosphorus-containing salts (AlPO₄, Ca₃(PO₄)₂, FePO₄, H₃PO₄, NaH₂PO₄) were analysed in hydrolysis for their ability to convert birch wood C-5 carbohydrates into furfural. The hydrolysis process was performed with three different amounts of catalyst (2, 3 and 4 wt.%) at a constant temperature (175 °C) and treatment time (90 min). It was found that the highest amount of furfural (63–72%, calculated based on the theoretically possible yield (% t.p.y.)) was obtained when H₃PO₄ was used as a catalyst. The best furfural yield among the used phosphorus-containing salts was obtained with NaH₂PO₄: 40 ± 2%. The greatest impact on cellulose degradation during the hydrolysis process was observed using H₃PO₄ at 12–20% of the initial amount, while the lowest degradation was observed using NaH₂PO₄ as a catalyst. The yield of furfural was 60.5–62.7% t.p.y. when H₃PO₄ and NaH₂PO₄ were combined (1:2, 1:1, or 2:1 at a catalyst amount of 3 wt.%); however, the amount of cellulose that was degraded did not exceed 5.2–0.3% of the starting amount. Enzymatic hydrolysis showed that such pretreated biomass could be directly used as a substrate to produce glucose. The highest conversion ratio of cellulose into glucose (83.1%) was obtained at an enzyme load of 1000 and treatment time of 48 h. |
| first_indexed | 2024-03-09T18:47:39Z |
| format | Article |
| id | doaj.art-12415fe3619749fcae85d3a85a4c4f4c |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T18:47:39Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-12415fe3619749fcae85d3a85a4c4f4c2023-11-24T06:02:51ZengMDPI AGMolecules1420-30492022-10-012721735310.3390/molecules27217353Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of BiorefiningPrans Brazdausks0Daniela Godina1Maris Puke2Latvian State Institute of Wood Chemistry, Dzerbenes 27, LV-1006 Riga, LatviaLatvian State Institute of Wood Chemistry, Dzerbenes 27, LV-1006 Riga, LatviaLatvian State Institute of Wood Chemistry, Dzerbenes 27, LV-1006 Riga, LatviaThis study seeks to improve the effectiveness of the pretreatment stage when direct furfural production is integrated into the concept of a lignocellulosic biomass biorefinery. First of all, the catalytic effects of different phosphorus-containing salts (AlPO₄, Ca₃(PO₄)₂, FePO₄, H₃PO₄, NaH₂PO₄) were analysed in hydrolysis for their ability to convert birch wood C-5 carbohydrates into furfural. The hydrolysis process was performed with three different amounts of catalyst (2, 3 and 4 wt.%) at a constant temperature (175 °C) and treatment time (90 min). It was found that the highest amount of furfural (63–72%, calculated based on the theoretically possible yield (% t.p.y.)) was obtained when H₃PO₄ was used as a catalyst. The best furfural yield among the used phosphorus-containing salts was obtained with NaH₂PO₄: 40 ± 2%. The greatest impact on cellulose degradation during the hydrolysis process was observed using H₃PO₄ at 12–20% of the initial amount, while the lowest degradation was observed using NaH₂PO₄ as a catalyst. The yield of furfural was 60.5–62.7% t.p.y. when H₃PO₄ and NaH₂PO₄ were combined (1:2, 1:1, or 2:1 at a catalyst amount of 3 wt.%); however, the amount of cellulose that was degraded did not exceed 5.2–0.3% of the starting amount. Enzymatic hydrolysis showed that such pretreated biomass could be directly used as a substrate to produce glucose. The highest conversion ratio of cellulose into glucose (83.1%) was obtained at an enzyme load of 1000 and treatment time of 48 h.https://www.mdpi.com/1420-3049/27/21/7353lignocellulose sourcesbiorefiningfurfuralphosphorus-containing catalystshydrolysisenzymatic hydrolysis |
| spellingShingle | Prans Brazdausks Daniela Godina Maris Puke Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of Biorefining Molecules lignocellulose sources biorefining furfural phosphorus-containing catalysts hydrolysis enzymatic hydrolysis |
| title | Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of Biorefining |
| title_full | Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of Biorefining |
| title_fullStr | Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of Biorefining |
| title_full_unstemmed | Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of Biorefining |
| title_short | Direct Furfural Production from Deciduous Wood Pentosans Using Different Phosphorus-Containing Catalysts in the Context of Biorefining |
| title_sort | direct furfural production from deciduous wood pentosans using different phosphorus containing catalysts in the context of biorefining |
| topic | lignocellulose sources biorefining furfural phosphorus-containing catalysts hydrolysis enzymatic hydrolysis |
| url | https://www.mdpi.com/1420-3049/27/21/7353 |
| work_keys_str_mv | AT pransbrazdausks directfurfuralproductionfromdeciduouswoodpentosansusingdifferentphosphoruscontainingcatalystsinthecontextofbiorefining AT danielagodina directfurfuralproductionfromdeciduouswoodpentosansusingdifferentphosphoruscontainingcatalystsinthecontextofbiorefining AT marispuke directfurfuralproductionfromdeciduouswoodpentosansusingdifferentphosphoruscontainingcatalystsinthecontextofbiorefining |