000136003 001__ 136003
000136003 005__ 20240705134228.0
000136003 0247_ $$2doi$$a10.1021/acs.energyfuels.4c00937
000136003 0248_ $$2sideral$$a138980
000136003 037__ $$aART-2024-138980
000136003 041__ $$aeng
000136003 100__ $$aMaziarka, Przemyslaw
000136003 245__ $$aPart 1-Impact of Pyrolysis Temperature and Wood Particle Length on Vapor Cracking and Char Porous Texture in Relation to the Tailoring of Char Properties
000136003 260__ $$c2024
000136003 5060_ $$aAccess copy available to the general public$$fUnrestricted
000136003 5203_ $$aPore size distribution is a key parameter in the performance of biobased pyrolytic char in novel applications. In industrial-scale production, the size of feedstock particles typically exceeds a few millimeters. For such particle sizes, it is a challenge to tailor the final properties of the char based only on the process conditions (experimental and modeling-wise). Pyrolysis studies of single particles larger than a few millimeters provide data sets useful for modeling and optimization of the process. Part 1 of this research focused on the pyrolysis of single particles of beech wood, secondary cracking, and its effect on the char porous texture. It contains a quantitative assessment of the effects of five conversion temperatures (from 300 to 840 °C) and two particle dimensions (Ø8 × 10 mm and Ø8 × 16 mm) on the composition of the pyrolysis vapors and pore morphology of the char. Results from real-time temperature and mass changes are presented along with release profiles of 15 vapor constituents measured by infrared spectroscopy. Furthermore, characterization of the collected bio-oil (using GC-MS/FID) and the textural hierarchical structured char (through N2 and CO2 adsorption, Hg porosimetry, and scanning electron microscopy (SEM)) was performed. Cracking of vapors above 500 °C was compound-specific. The polyaromatic hydrocarbons (PAHs) yield, between 680 and 840 °C, increased 5 times for 10 mm particles and 9 times for 16 mm ones. Besides temperature, PAH yield was suspected to correlate with particle length and PAHs/soot deposition in the micropores. Results showed that the macropores accounted for over 80% of the total pore volume, regardless of the temperature and particle length. Increasing the particle length by 60% caused a reduction in the specific surface area (ca. 15% at 840 °C) of the resulting char, mainly due to a reduction in microporosity. Based on the findings, the production conditions for a specific char application are suggested. The obtained data will be used in Part 2 of this research, devoted to subsequent CFD modeling of the process.
000136003 536__ $$9info:eu-repo/grantAgreement/EC/H2020/721991/EU/Advanced Carbon Materials from Biowaste: Sustainable Pathways to Drive Innovative Green Technologies/ GreenCarbon$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 721991- GreenCarbon$$9info:eu-repo/grantAgreement/EC/H2020/731101/EU/ Biofuels Research Infrastructure for Sharing Knowledge II/BRISK II$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 731101-BRISK II
000136003 540__ $$9info:eu-repo/semantics/embargoedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000136003 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000136003 700__ $$aKienzl, Norbert
000136003 700__ $$aDieguez-Alonso, Alba
000136003 700__ $$aFierro, Vanessa
000136003 700__ $$aCelzard, Alain
000136003 700__ $$aArauzo, Pablo J.
000136003 700__ $$aHedin, Niklas
000136003 700__ $$aPrins, Wolter
000136003 700__ $$aAnca-Couce, Andrés
000136003 700__ $$0(orcid)0000-0002-0118-3254$$aManyà, Joan J.$$uUniversidad de Zaragoza
000136003 700__ $$aRonsse, Frederik
000136003 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000136003 773__ $$g38, 11 (2024), 9751–9771$$pEnergy fuels$$tEnergy and Fuels$$x0887-0624
000136003 8564_ $$s1228056$$uhttps://zaguan.unizar.es/record/136003/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2025-05-31
000136003 8564_ $$s993618$$uhttps://zaguan.unizar.es/record/136003/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2025-05-31
000136003 909CO $$ooai:zaguan.unizar.es:136003$$particulos$$pdriver
000136003 951__ $$a2024-07-05-12:56:08
000136003 980__ $$aARTICLE