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Experimental Determination of <i>In Situ</i> Hydrogen Sulfide Production during Thermal Recovery Processes

2016· article· en· W2464299782 on OpenAlex
Riyi Lin, Duopei Song, Xinwei Wang, Daoyong Yang

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueEnergy & Fuels · 2016
Typearticle
Languageen
FieldEngineering
TopicIndustrial Gas Emission Control
Canadian institutionsUniversity of Regina
FundersFundamental Research Funds for the Central UniversitiesNatural Sciences and Engineering Research Council of CanadaPetroChina Company Limited
KeywordsAlkalinityHydrogen sulfideChemistryHydrogenHydrogen productionSulfideIn situAlkali metalInorganic chemistryPassivationChemical engineeringAnalytical Chemistry (journal)Environmental chemistrySulfurPhysical chemistryOrganic chemistry

Abstract

fetched live from OpenAlex

Experimental techniques have been developed to determine in situ hydrogen sulfide (H 2 S) generation as a function of solution alkalinity, SO 4 2– concentration, and surrounding gas during thermal recovery processes. Experimentally, well-designed laboratory tests have been conducted to quantify the in situ generation of H 2 S in a surface passivation reactor. The reaction gases were analyzed using a gas analyzer, while the solution pH values were measured using a glass electrode. Solution alkalinity restrained the formation of H 2 S after subtracting the amount of H 2 S that neutralizes alkali in the solution. H 2 S production increases with an increase in SO 4 2– concentrations. CO 2 when used as the surrounding gas increases H 2 S production relative to N 2 . In comparison to N 2, the presence of CO 2 in the gas phase led to the significant increase in H 2 S generation and the H 2 S concentration was up to 32.1% at 280 °C. It is essential that the effect of solution pH values and SO 4 2– concentrations on the formation water and surrounding gas be taken into account while predicting produced hydrogen sulfide.

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 score0.017
Threshold uncertainty score0.380

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 head0.009
GPT teacher head0.206
Teacher spread0.197 · 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