A new kinetic model for non-isothermal pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust monitored by STA-MS analysis: The influence of experimental parameters on process characteristics
Апстракт
A novel kinetic model for pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust was proposed. The complete procedure includes a combined four parallel reaction model (CPRM) and three-component Log-Normal distributed reactivity model. Based on the matrix analysis, it was found that for quality pyrolysis performing, the lower values of the heating rates (where the possibility of the secondary reactions is significantly reduced) are highly desirable. CPRM approach showed that with an increase of heating rate, pyrolysis rate of UF-resin adhesive rapidly increases and its rate curve moves very close to decomposition curve related to cellulose. At the highest heating rate, the UF-resin adhesive pyrolysis curve "overrated" cellulose-related curve. It was assumed that UF-resin adhesive participates in cellulose decomposition, hastening chemical bonds breaking in cellulose molecule, and further stimulating lignin decomposition. Three-component Log- Normal distributed reactivity mod...el showed that certain asymmetries in effective activation energy distribution curves for some pseudocomponents is a consequence of a wider variety of bonds present, and/or "capacity" in the tendency of an easier bond breaking. Both approaches, contained in the newly proposed model, confirm the strong deviation from the additive behavior (the adhesive compound present in the studied lignocellulose material does not produce the synergistic effect).
Кључне речи:
Multicomponent kinetic analysis / Medium-density fiberboard (MDF) / Cellulose pyrolysis rate reduction / Beech sawdust pyrolysis / Absence of synergistic effectИзвор:
Thermal Decomposition: Process and Effects, 2019, 165-238Издавач:
- Nova Science Publishers, Inc.
Scopus: 2-s2.0-85091713673
Колекције
Институција/група
Mašinski fakultetTY - CHAP AU - Janković, Bojan AU - Manić, Nebojša PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3206 AB - A novel kinetic model for pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust was proposed. The complete procedure includes a combined four parallel reaction model (CPRM) and three-component Log-Normal distributed reactivity model. Based on the matrix analysis, it was found that for quality pyrolysis performing, the lower values of the heating rates (where the possibility of the secondary reactions is significantly reduced) are highly desirable. CPRM approach showed that with an increase of heating rate, pyrolysis rate of UF-resin adhesive rapidly increases and its rate curve moves very close to decomposition curve related to cellulose. At the highest heating rate, the UF-resin adhesive pyrolysis curve "overrated" cellulose-related curve. It was assumed that UF-resin adhesive participates in cellulose decomposition, hastening chemical bonds breaking in cellulose molecule, and further stimulating lignin decomposition. Three-component Log- Normal distributed reactivity model showed that certain asymmetries in effective activation energy distribution curves for some pseudocomponents is a consequence of a wider variety of bonds present, and/or "capacity" in the tendency of an easier bond breaking. Both approaches, contained in the newly proposed model, confirm the strong deviation from the additive behavior (the adhesive compound present in the studied lignocellulose material does not produce the synergistic effect). PB - Nova Science Publishers, Inc. T2 - Thermal Decomposition: Process and Effects T1 - A new kinetic model for non-isothermal pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust monitored by STA-MS analysis: The influence of experimental parameters on process characteristics EP - 238 SP - 165 UR - https://hdl.handle.net/21.15107/rcub_machinery_3206 ER -
@inbook{ author = "Janković, Bojan and Manić, Nebojša", year = "2019", abstract = "A novel kinetic model for pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust was proposed. The complete procedure includes a combined four parallel reaction model (CPRM) and three-component Log-Normal distributed reactivity model. Based on the matrix analysis, it was found that for quality pyrolysis performing, the lower values of the heating rates (where the possibility of the secondary reactions is significantly reduced) are highly desirable. CPRM approach showed that with an increase of heating rate, pyrolysis rate of UF-resin adhesive rapidly increases and its rate curve moves very close to decomposition curve related to cellulose. At the highest heating rate, the UF-resin adhesive pyrolysis curve "overrated" cellulose-related curve. It was assumed that UF-resin adhesive participates in cellulose decomposition, hastening chemical bonds breaking in cellulose molecule, and further stimulating lignin decomposition. Three-component Log- Normal distributed reactivity model showed that certain asymmetries in effective activation energy distribution curves for some pseudocomponents is a consequence of a wider variety of bonds present, and/or "capacity" in the tendency of an easier bond breaking. Both approaches, contained in the newly proposed model, confirm the strong deviation from the additive behavior (the adhesive compound present in the studied lignocellulose material does not produce the synergistic effect).", publisher = "Nova Science Publishers, Inc.", journal = "Thermal Decomposition: Process and Effects", booktitle = "A new kinetic model for non-isothermal pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust monitored by STA-MS analysis: The influence of experimental parameters on process characteristics", pages = "238-165", url = "https://hdl.handle.net/21.15107/rcub_machinery_3206" }
Janković, B.,& Manić, N.. (2019). A new kinetic model for non-isothermal pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust monitored by STA-MS analysis: The influence of experimental parameters on process characteristics. in Thermal Decomposition: Process and Effects Nova Science Publishers, Inc.., 165-238. https://hdl.handle.net/21.15107/rcub_machinery_3206
Janković B, Manić N. A new kinetic model for non-isothermal pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust monitored by STA-MS analysis: The influence of experimental parameters on process characteristics. in Thermal Decomposition: Process and Effects. 2019;:165-238. https://hdl.handle.net/21.15107/rcub_machinery_3206 .
Janković, Bojan, Manić, Nebojša, "A new kinetic model for non-isothermal pyrolysis of MDF (medium-density fiberboard) derived Beech sawdust monitored by STA-MS analysis: The influence of experimental parameters on process characteristics" in Thermal Decomposition: Process and Effects (2019):165-238, https://hdl.handle.net/21.15107/rcub_machinery_3206 .