@article {1877, title = { Steam Explosion of Beech Wood: Effect of the Particle Size on the Xylans Recovery }, journal = { WASTE AND BIOMASS VALORIZATION }, volume = {11}, year = {2020}, pages = {625-633}, abstract = {

In this work, the effect of particle size and severity factors was investigated to find the optimum condition of steam explosion pretreatment on xylan recovery of beech wood. The beech wood particles with sizes of 0.16, 1, or 2 mm were steamed at 150-210 degrees C for 2.5-15 min before an explosive decompression. The results showed that the maximum xylan recovery was about 10\% w/w wood with low concentrations of the inhibitors, which were obtained when the particle size is 1 mm and R-0=3.65 (190 degrees C, 10 min). The smallest particle size may result in overcooking of biomass, leads to easily and high degradation of hemicelluloses sugars, whereas the largest particle sizes may result in incomplete autohydrolysis in biomass and lower extractability of hemicelluloses sugars. The obtained optimum condition for xylan recovery will improve the subsequent utilization (such as in food industry and other chemical products), prior to subsequent transformation of steam explosion pretreated wood (bioethanol and pellet).

}, url = {https://hal.univ-lorraine.fr/LERMAB-UL/hal-02125966}, author = {E. SIMANGUNSONG and I. ZIEGLER-DEVIN and L. CHRUSCIEL and P. GIRODS and N.J. WISTARA and N. BROSSE} } @article {1844, title = { Toward the cottonization of hemp fibers by steam explosion. Flame-retardant fibers }, journal = { INDUSTRIAL CROPS AND PRODUCTS }, volume = {151}, year = {2020}, abstract = {

The goal is to produce cottonized hemp fibers with improved thermal stability. It was first found that the fine hemp fibers produced from technical non-retted hemp fibers by steam explosion exhibited an enhanced thermal stability. An efficient and low-cost process was developed using a mixture of urea/etidronic acid in aqueous solution in order to achieve a high phosphorus content and produce flame retardant fibers by chemical grafting. ICP, P-31 and C-13 NMR, SEM, thermogravimetric, Pyrolysis-Combustion Flow Calorimetry analyses and a flame test were used to characterize the grafted fibers. Fibers modified with relatively high P and N contents have been produced (approximate to 6 wt \% and approximate to 4 wt \% respectively) but lower grafting rates (P approximate to 0.5 \% and N approximate to 0.35 \%) are sufficient to produce non-flammable fibers. A synergistic effect between N and P has been proposed to induce the formation of a stable char.

}, url = {https://hal.univ-lorraine.fr/LERMAB-UL/hal-02676818}, author = {M. MOUSSA and R. EL-HAGE and R. SONNIER and L. CHRUSCIEL and I. ZIEGLER-DEVIN and N. BROSSE} } @article {1791, title = { High voltage electric discharges treatment for high molecular weight hemicelluloses extraction from spruce }, journal = { CARBOHYDRATE POLYMERS }, volume = {222}, year = {2019}, abstract = {

The aim of this work is to extract hemicelluloses polymers from spruce sawdust using High Voltage Electrical Discharges (HVED) pretreatment. HVED pretreatment was carried out in order to improve deconstruction of the wood matrix and to allow easier release of high molecular mass hemicelluloses. The results revealed the advantage of HVED activation step in the process of extraction. The yield of hemicellulose extraction increased with HVED treatment time. In fact, after 4 ms of HVED treatment time in 1M NaOH solution, the yield obtained was higher as compared to the untreated sample (19 mg/g of dry matter and 15.8 mg/g of dry matter respectively). The molecular weights of extracted hemicelluloses are very high (55 kDa and 47 kDa for 4 ms of HVED-treatment in 1M NaOH solution and water respectively). The use of different mediums of extraction with HVED pretreatment have revealed a selective solubilization of spruce hemicelluloses.

}, url = {https://hal.univ-lorraine.fr/LERMAB-UL/hal-02290577}, author = {M. CHADNI and N. GRIMI and I. ZIEGLER-DEVIN and N. BROSSE and O. BALS} } @article {1813, title = { Homolytic and Heterolytic Cleavage of beta-Ether Linkages in Hardwood Lignin by Steam Explosion }, journal = { JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY }, volume = {67}, year = {2019}, pages = {5989-5996}, abstract = {

Steam-explosion lignin (SEL) was extracted with ethanol from steam-exploded hardwood (okoume, Aucoumea klaineana Pierre) pretreated at various severities after neutral or acidic impregnation. The SELs were subjected to structural characterization by 2D HSQC NMR, P-31 NMR, and SEC and compared with milled-wood lignin (MWL). A strong decrease in the beta-O-4 content is observed with increasing steam-explosion severity accompanied by a gradual increase in molecular mass. C alpha-oxidized S units (S\&$\#$39;, Hibbert\&$\#$39;s ketones) were quantified by NMR and used as a marker of the hydrolytic mechanism; naphthol was used as a carbonium-ion scavenger. It has been observed that mixed reactions of hydrolysis and homolysis are involved, but the SEL is mainly cleaved homolytically, favoring recondensation through radical coupling even at low reaction severity. However, acidic preimpregnation of wood prior to steam explosion enhanced the carbonium-ion pathway.

}, url = {https://hal.univ-lorraine.fr/LERMAB-UL/hal-02125895}, author = {S.N. OBAME and I. ZIEGLER-DEVIN} } @article {1841, title = { Lignin-Based Carbon Nanofibers as Electrodes for Vanadium Redox Couple Electrochemistry }, journal = {NANOMATERIALS}, volume = {9}, year = {2019}, abstract = {

Three different types of lignin (kraft, organosolv and phosphoric acid lignin) were characterized and tested as precursors of electrospun nanofibers. Polyethylene oxide (PEO) was added as a plasticizer and dimethyl formamide (DMF) employed as a solvent. It was found that the molecular weight of lignin was the key parameter to understand the differences of the mechanical stability of the resultant fiber mats. In the case of kraft lignin (KL), the influence of some changes in the synthetic process was also tested: applied voltage, pretreatment in air or not, and the addition of a small amount of Ketjen black. After pyrolysis in nitrogen flow, the obtained carbon nanofibers (CNFs) were characterized by different techniques to analyze their differences in morphology and surface chemistry. Vanadium electrochemistry in 3M sulfuric acid was used to evaluate the different CNFs. All fibers allowed electrochemical reactions, but we observed that the oxidation of V(II) to V(III) was very sensitive to the nature of the raw material. Materials prepared from kraft and phosphorus lignin showed the best performances. Nevertheless, when 1 wt.\% of Ketjen black was added to KL during the electrospinning, the electrochemical performance of the sample was significantly improved and all targeted reactions for an all-vanadium redox flow battery were observed. Therefore, in this work, we demonstrated that CNFs obtained by the electrospinning of lignin can be employed as electrodes for vanadium electrochemistry, and their properties can be tuned to improve their electrochemical properties.

}, url = {https://hal.univ-lorraine.fr/hal-02125947}, author = {J.F. VIVO-VILCHES and A. CELZARD and V. FIERRO and I. ZIEGLER-DEVIN and N. BROSSE and A. DUFOUR and M. ETIENNE} } @article {1724, title = { Biochemical characterization of the skeletal matrix of the massive coral, Porites australiensis - The saccharide moieties and their localization }, journal = { JOURNAL OF STRUCTURAL BIOLOGY }, volume = {203}, year = {2018}, pages = {219-229}, abstract = {

To construct calcium carbonate skeletons of sophisticated architecture, scleractinian corals secrete an extra cellular skeletal organic matrix (SOM) from aboral ectodermal cells. The SOM, which is composed of proteins, saccharides, and lipids, performs functions critical for skeleton formation. Even though polysaccharides constitute the major component of the SOM, its contribution to coral skeleton formation is poorly understood. To this end, we analyzed the SOM of the massive colonial coral, Porites australiensis, the skeleton of which has drawn great research interest because it records environmental conditions throughout the life of the colony. The coral skeleton was extensively cleaned, decalcified with acetic acid, and organic fractions were separated based on solubility. These fractions were analyzed using various techniques, including SDS-PAGE, FT-IR, in vitro crystallization, CHNS analysis, chromatography analysis of monosaccharide and enzyme-linked lectin assay (ELLA). We confirmed the acidic nature of SOM and the presence of sulphate, which is thought to initiate CaCO3 crystallization. In order to analyze glycan structures, we performed ELLA on the soluble SOM for the first time and found that it exhibits strong specificity to Datura stramonium lectin (DSL). Furthermore, using biotinylated DSL with anti-biotin antibody conjugated to nanogold, in situ localization of DSL-binding polysaccharides in the P. australiensis skeleton was performed. Signals were distributed on the surfaces of fiber-like crystals of the skeleton, suggesting that polysaccharides may modulate crystal shape. Our study emphasizes the importance of sugar moieties in biomineralization of scleractinian corals.

}, url = {https://hal.archives-ouvertes.fr/hal-02122753/}, author = {T. TAKEUCHI and L. PLASSERAUD and I. ZIEGLER-DEVIN and N. BROSSE and C. SHINZATO and N. SATOH and F. MARIN} } @article {1659, title = { Pretreatment of trace element-enriched biomasses grown on phytomanaged soils for bioethanol production }, journal = { INDUSTRIAL CROPS AND PRODUCTS }, volume = {107}, year = {2017}, pages = {63-72}, abstract = {

Phytotechnologies are a set of sustainable, ecological options notably for alleviating pollutant linkages induced by contaminated soils. However, concerns exist regarding the processing of trace elements (TE)-enriched biomass and the fate of TEs in the end-products. The fractionation of phytoremediation TE-enriched non-woody lignocellulosic (tobacco) and woody (birch, willow) phytoremediation-borne biomasses was studied using ethanol organosolv, soda and dilute acid pretreatments. TE distribution in the process fractions (pulp, liquid effluents and lignin) was further examined. In dilute acid conditions, a wood pretreatment performed at 170 degrees C in the presence of 2\% w/w of sulfuric acid allowed an efficient extraction of the metals in the water effluent (approximate to 90\% for Mn and Zn) producing a clean pulp. A soda pretreatment resulted in a low metal extractability, especially at high temperature. At 170 degrees C or above with 15\% w/w of NaOH, metals were mostly recovered in the cellulosic pulp (70\%- 98\%). Using organosolv pulping, the TE contents were in the decreasing order: pulp \>\> water stream \> lignin. The TE organosolv extraction in the liquid phase varied depending on the TE metal and on the species but was generally low. Metal extractability increased with the water content in the solvent of the organosolv pulping but decreased with temperature. Enzymatic hydrolyses of TE-enriched and metal-free pulps were investigated and it was concluded that the TE concentrations had little or no effect on polysaccharide enzymatic hydrolysability by cellulases. The final destination of the various fractions for valorization in a biorefinery setting is discussed, regarding their TE content.

}, url = {https://hal.archives-ouvertes.fr/hal-01538463}, author = {M. ASAD and Z. MENANA and I. ZIEGLER-DEVIN and V. BERT and M. CHALOT and R. HERZIG and M. MENCH and N. BROSSE} } @article {1555, title = {An interpretation of the hydrogen inhibiting effect on chemical vapor deposition of pyrocarbon}, journal = { JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS }, volume = {115}, year = {2015}, pages = {299-306}, abstract = {

A detailed kinetic mechanism, based on elementary steps, modeling both pyrocarbon deposition and gas phase composition obtained by propane pyrolysis on carbon fibers was recently proposed. This model, based on heterogeneous and homogeneous elementary steps was efficient to predict pyrocarbon deposition rate and gas phase composition when the influence of temperature (1173-1323 K), residence time (0.5-4s), carbon surface fibers, and reactor inlet mixture were studied. In this paper, we discuss experimental and modeling results of hydrogen inhibiting effects on pyrocarbon deposited and gas phase composition during propane/hydrogen pyrolysis (temperature 1273 K, residence time 1 s, surface fibers 3960 cm(-1)). Simulated results are coherent with experimental data when the pyrocarbon deposition rate is studied. Compared to pure propane chemical vapor deposition, the mole fractions of C-2 gas phase species are not affected by an increasing of hydrogen inlet, whereas pyrocarbon deposition rate and mole fractions of C-3 and aromatic species decrease. These results also confirm, in accordance with the literature, that hydrogen inhibits highly the formation of pyrocarbon and aromatic species.

}, url = {https://hal.univ-lorraine.fr/LERMAB-UL/hal-01266246}, author = {I. ZIEGLER-DEVIN and R. FOURNET and R. LACROIX and P.M. MARQUAIRE} } @article {691, title = {Experimental study of the oxidation and pyrolysis of dibenzofuran at very low concentration}, journal = {Journal of Environmental Chemical Engineering}, volume = {2}, year = {2013}, month = {2013}, chapter = {143-153}, author = {A. TRITZ and I. ZIEGLER-DEVIN and C. PERRIN and P.P. MARQUAIRE} } @article {1226, title = {Kinetic study of abatement of low concentration of dibenzofuran by oxidation- Effect of co-reactants.}, journal = {Chemical Engineering Journal}, volume = {218}, year = {2013}, month = {2013}, chapter = {154}, author = {I. ZIEGLER-DEVIN and R. BOUNACOEUR and C. PERRIN and P.M. MARQUAIRE} } @article {1227, title = {High temperature reforming of hydrocarbons in a gas from biomass}, journal = {Fuel}, volume = {243}, year = {2012}, month = {2012}, chapter = {70}, author = {H. HIBLOT and I. ZIEGLER-DEVIN and R. FOURNET and P.A. GLAUDE} }