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Record W2115689104 · doi:10.1002/apj.1715

Development of eggshell derived catalyst for transesterification of used cooking oil for biodiesel production

2013· article· en· W2115689104 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueAsia-Pacific Journal of Chemical Engineering · 2013
Typearticle
Languageen
FieldEngineering
TopicBiodiesel Production and Applications
Canadian institutionsUniversity of Saskatchewan
Fundersnot available
KeywordsTransesterificationBiodieselBiodiesel productionRaw materialCatalysisMethanolYield (engineering)Organic chemistryEggshellChemistryCommercializationVegetable oilFatty acid methyl esterCooking oilPulp and paper industryMaterials scienceEngineeringBusinessComposite material

Abstract

fetched live from OpenAlex

ABSTRACT The major drawback that prevents commercialization of biodiesel is the high cost of vegetable oil feedstock. In this work, used cooking oil, which is much less expensive than fresh vegetable oil, is used as an alternative raw material. Prior to transesterification reaction, esterification was conducted and catalyzed homogeneously to eliminate free fatty acid. Heterogeneous catalyst derived from cheap and easily obtained egg‐shell (industrial waste) was used for transesterification reaction. A 100% ester yield was obtained at the optimized reaction conditions, which is 5 h of reaction duration, 24:1 methanol to oil molar ratio and 4 wt% catalyst loading. © 2013 Curtin University of Technology and John Wiley & Sons, Ltd.

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.

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 score0.131
Threshold uncertainty score0.579

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 science0.0000.000
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 head0.018
GPT teacher head0.214
Teacher spread0.196 · 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