Dissertation/ Thesis
Chemical valorization of bio-oil resulting from biomass pyrolysis for green polymer synthesis ; Valorisation chimique de bio-huile issue de la biomasse pour la synthèse de polymères verts
| العنوان: | Chemical valorization of bio-oil resulting from biomass pyrolysis for green polymer synthesis ; Valorisation chimique de bio-huile issue de la biomasse pour la synthèse de polymères verts |
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| المؤلفون: | Xu, Jie |
| المساهمون: | Laboratoire de Sécurité des Procédés Chimiques (LSPC), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA), Normandie Université, Bechara Taouk |
| المصدر: | https://theses.hal.science/tel-04599902 ; Chemical and Process Engineering. Normandie Université, 2022. English. ⟨NNT : 2022NORMIR11⟩. |
| بيانات النشر: | HAL CCSD |
| سنة النشر: | 2022 |
| المجموعة: | Normandie Université: HAL |
| مصطلحات موضوعية: | Beech wood pyrolysis, Fractional condensation, Water extraction, Bio-oil characterization, GC chromatography, Separation, Storage stability, Bio-oil novolac resin, Bio-oil based Epoxy resin, Glyoxal, DGEBA, Biochar, Curing kinetics, Thermal safety parameter, Pyrolyse du bois de hêtre, Condensation fractionnée, Extraction par l'eau, Caractérisation des bio-huiles, Stabilité de la bio-huile, Résine novolaque verte, Résine époxy verte, Cinétique de durcissement, Paramètres de sécurité thermique, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, [CHIM.GENI]Chemical Sciences/Chemical engineering, [CHIM.POLY]Chemical Sciences/Polymers |
| الوصف: | Biomass, in particular wood and wood residues, is the most common form of renewable energy source. Bio-oil, the main product of biomass pyrolysis contains over 400 different chemical compounds. The complexity of their composition makes their direct use difficult. In this study, the combination of two environmentally friendly methods was successfully studied to separate target chemicals from pyrolytic bio-oil of beech wood. Firstly, the fractional condensation of pyrolysis oil was carried out using a system with three condensers at three different temperatures. Then, the water extraction was carried out to further the separation of the products of the different condensers. The stability during the storage of bio-oil was also examined. Each chemical compound of the bio-oil fractions before and after storage was identified and quantified using GC-MS and GC-FID and the yield of the target chemicals was calculated. The phenolics and sugars were mainly found in the first condenser. Separation by water allowed recovering phenolics in the water-insoluble fraction (70.6 wt%) with good stability. The polymerization of model phenol, a mimic mixture of bio-oil, and the obtained phenol-rich bio-oil fraction of bio-oil with some reactive aldehydes were investigated to produce bio-oil based novolac resin. The aim was to demonstrate the feasibility of using bio-oil instead of petroleum-derived phenol during the manufacture of these resins. Then, the novolacs were cured with commercial and bio-based epoxy resin for preparing bio-based green polymers. The biochar was also applied as an additive to the curing process. The kinetic parameters of the curing reaction were obtained with model-free methods (Kissinger, Flynn–Wall–Ozawa (FWO), Crane) using data from a differential scanning calorimeter (DSC). The curing activation energies of bio-oil resin and phenol resin were very close (95.5 and 94.9 kJ/mol). The risk assessment of the reaction was finally investigated. The results showed that using bio-oil glyoxal resin, bio-oil epoxy ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| اللغة: | English |
| Relation: | NNT: 2022NORMIR11; tel-04599902; https://theses.hal.science/tel-04599902; https://theses.hal.science/tel-04599902/document; https://theses.hal.science/tel-04599902/file/Jie-XU.pdf |
| الاتاحة: | https://theses.hal.science/tel-04599902 https://theses.hal.science/tel-04599902/document https://theses.hal.science/tel-04599902/file/Jie-XU.pdf |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.43ABD31A |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |