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Applicability of a New Binder for Ferro-coke Focusing on the Permeation Behavior

2023· article· en· W4390095651 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

VenueTetsu-to-Hagane · 2023
Typearticle
Languageen
FieldEngineering
TopicIron and Steelmaking Processes
Canadian institutionsWorld Anti-Doping Agency
Fundersnot available
KeywordsCokeCarbonizationCoalBlast furnacePermeationMaterials scienceCakingPorosityMetallurgyIron oreChemical engineeringChemistryComposite materialOrganic chemistry

Abstract

fetched live from OpenAlex

Ferro-coke, which is produced by mixing coal and iron ore, briquetting and carbonizing, can be used in a blast furnace to greatly decrease the reducing agent ratio. To ensure the strength of ferro-coke, asphalt pitch (ASP) is used as a binder, but the supply of ASP is limited, and the development of alternative binder are required. This study investigated the application of Hyper-coal (HPC), a low-ash caking additive obtained by solvent extraction of coal, as a new binder for ferro-coke. It was found that superior ferro-coke strength could be obtained by using HPC in which insoluble solid concentration was less than 15 wt.%, to that of ASP. This threshold value was specified from the permeation tests. The permeabilities of binders were determined by measuring the permeation distance in the packed layer of coal and/or iron ore under the carbonizing conditions. HPC appeared higher permeability than ASP in the packed layer of iron ore and coal mixtures. It was considered that the excellent thermal plasticity of HPC, lower melting temperature and higher fluidity than ASP, affected higher permeation into the inter particle void especially lower temperature range before starting the reduction of iron ore, which rapidly decreased in the permeabilities of both binders due to the distortion of carbon structures. Those results suggested that HPC was superior to ASP as a binder for ferro-coke.

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 score0.291
Threshold uncertainty score0.458

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 head0.059
GPT teacher head0.296
Teacher spread0.237 · 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