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Record W2766239411 · doi:10.1002/cjce.23060

Kinetics of cellulose pyrolysis: Ensuring optimal outcomes

2017· article· en· W2766239411 on OpenAlexvenueno aff
Michael O. Adenson, Matthew D. Kelley, Osama O. Elkelany, Joseph J. Biernacki, Yung‐Way Liu

Bibliographic record

VenueThe Canadian Journal of Chemical Engineering · 2017
Typearticle
Languageen
FieldEngineering
TopicThermochemical Biomass Conversion Processes
Canadian institutionsnot available
FundersDivision of Chemical, Bioengineering, Environmental, and Transport Systems
KeywordsMicrocrystalline celluloseCellulosePyrolysisActivation energyThermogravimetric analysisThermal decompositionDecompositionBiomass (ecology)KineticsChemical engineeringGravimetric analysisKinetic energyMaterials scienceThermodynamicsChemistryOrganic chemistryPhysicsEngineeringGeology

Abstract

fetched live from OpenAlex

Abstract Thermal gravimetric analysis (TGA) has been used for decades to study the thermal decomposition of cellulose. Unfortunately, reported kinetic parameters extracted from TGA‐based datasets for cellulose pyrolysis vary greatly; activation energies between 166 and 250 kJ/mol have been reported. In addition to heat and mass transfer limitations and source of biomass, which have previously been used to explain such variations, this work shows that the choice of regression objective function and optimization strategy are also important factors. Taking all into consideration, the activation energy of slow pyrolysis of microcrystalline cellulose was estimated to be 199 ± 2.0 kJ/mol.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.007
Threshold uncertainty score0.498

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.009
GPT teacher head0.188
Teacher spread0.179 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations21
Published2017
Admission routes1
Has abstractyes

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