Production of liquid bio-fuel from catalytic de-oxygenation:Pyrolysis of beech wood and flax shives

查看全文 作　　者：Chetna [1]Mohabeer;Luis [1]Reyes;Lokmane [1]Abdelouahed;Stéphane [2]Marcotte;Jean-Christophe [1]Buvat;Lucette [3]Tidahy;Edmond Abi-[3]Aad;Bechara [1]Taouk

机构地区：[1]Normandie Univ,INSA Rouen Normandie,UNIROUEN,Laboratoire de Sécurité des Procédés Chimiques;[2]Normandie Univ,INSA Rouen Normandie,UNIROUEN;[3]Université du Littoral Cte d'Opale,Unité de Chimie Environnementale et Interactions sur le Vivant

出　　处：《燃料化学学报》索引2019年第47卷第2期,共14页

基　　金：supported by the European Union with the European Regional Development Fund(ERDF);the Regional Council of Normandie 摘　　要：This study presents a detailed analysis of the catalytic de-oxygenation of the liquid and gaseous pyrolytic products of two biomasses (beech wood and flax shives) using different catalysts (commercial HZSM-5 and H-Y,and lab-synthesised Fe-HZSM-5,Fe-H-Y,Pt/Al2O3 and CoMo/Al2O3). The experiments were all conducted in a semi-batch reactor under the same operating conditions for all feed materials. BET specific surface area,BJH pore size distribution and FT-IR technologies have been used to characterise the catalysts,while gas chromatography-mass spectrometry (GC-MS),flame ionisation detection (GC-FID) and thermal conductivity detection (GC-TCD) were used to examine the liquid and gaseous pyrolytic products. It was firstly seen that at higher catalyst-to-biomass ratios of 4∶1,de-oxygenation efficiency did not experience any further significant improvement. FeHZSM-5 was deemed to be the most efficient of the catalysts utilised as it helped reach the lowest oxygen contents in the bio-oils samples and the second best was HZSM-5. It was also found that HZSM-5 and H-Y tended to privilege the decarbonylation route(production of CO),whilst their iron-modified counterparts favoured the decarboxylation one (production of CO2) for both biomasses studied. It was then seen that the major bio-oil components (carboxylic acids) underwent almost complete conversion under catalytic treatment to produce mostly unoxygenated aromatic compounds,phenols and gases like CO and CO2. Finally,phenols were seen to be the family most significantly formed from the actions of all catalysts. 关键词：PYROLYSIS biomass CATALYTIC treatment de-oxygenation bio-oil upgrading

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Production of liquid bio-fuel from catalytic de-oxygenation:Pyrolysis of beech wood and flax shives

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