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Record W2325705058 · doi:10.1021/ie2008345

Correlations for Equilibrium Solubility of Carbon Dioxide in Aqueous 4-(Diethylamino)-2-butanol Solutions

2011· article· en· W2325705058 on OpenAlex
Teerawat Sema, Abdulaziz Naami, Raphael Idem, Paitoon Tontiwachwuthikul

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

VenueIndustrial & Engineering Chemistry Research · 2011
Typearticle
Languageen
FieldEngineering
TopicCarbon Dioxide Capture Technologies
Canadian institutionsUniversity of Regina
Fundersnot available
KeywordsSolubilityAqueous solutionChemistryThermodynamics2-ButanolCarbon dioxideEquilibrium constantPartial pressureSolubility equilibriumButanolAtmospheric temperature rangePhysical chemistryOrganic chemistryOxygenEthanolPhysics

Abstract

fetched live from OpenAlex

The experimental results of the equilibrium solubility of CO 2 in aqueous 4-(diethylamino)-2-butanol (DEAB) solutions are reported over the temperature range of 298–333 K, CO 2 partial pressure range of 10–100 kPa, and DEAB concentration range of 1–2.5 M. These results were then used to calculate, with the help of various thermodynamic models, the equilibrium solubility constant of CO 2 in aqueous DEAB solutions as a function of various operating parameters. Subsequently, data for the chemical equilibrium constant that governs the CO 2 –DEAB–water reaction were fitted to the correlation models of Kent–Eisenberg, Austgen, Li–Shen, and Hu–Chakma and used to predict the equilibrium solubility as a function of temperature and CO 2 partial pressure. The results show that these models did not represent the CO 2 equilibrium solubility in aqueous DEAB solution very well, with absolute average deviations of 7.3%, 7.3%, 7.1%, and 8.3%, respectively.

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)0.001
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
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 score0.028
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0010.001
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 head0.148
GPT teacher head0.294
Teacher spread0.146 · 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