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Catode and Anode Processes in Sulfur Corrosion Destruction of Metal Constructions of Prolonged Exploitation in an Aggressive Environment

2021· article· en· W3133715030 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

VenueIOP Conference Series Earth and Environmental Science · 2021
Typearticle
Languageen
FieldEngineering
TopicEngineering Diagnostics and Reliability
Canadian institutionsUniversity of Manitoba
Fundersnot available
KeywordsCorrosionAnodeCathodeHydrogenCathodic protectionElectrolyteHydrogen embrittlementHydrogen sulfideMaterials scienceDepolarizationSulfideChemistrySulfurInorganic chemistryElectrodeMetallurgy

Abstract

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Abstract The analysis of the literature and the practical data show that the existing scientific and technical and technological developments concerning the provision of reliable cross-mechanical stability and durability of the pipelines of the oil and gas industry are largely contradictory and uncertain; there was a need for a systematic study of the causes, conditions and mechanisms of corrosion damage of long-term equipment, features of cathodic and anodic processes in hydrogen sulfide destruction, in particular sulfur-hydrogen metal degradation. From the analysis of corrosion processes, we can draw the following conclusions: a) corrosion always destroys the anode, i.e. the electrode with a more negative potential; b) the cathode is not destroyed by corrosion and there is a process of depolarization, that is the removal of electrons; c) during hydrogen depolarization, electrons are neutralized by hydrogen ions and hydrogen gas is released from the cathode surface; d) during oxygen depolarization, the electrons are removed by oxygen dissolved in the electrolyte, which enters from the air or together with the environment; e) depolarization leads to a significant convergence of the values of the potentials of the electrodes and reduce the corrosion rate. Despite the large number of literature sources describing the experimental works, there is no single view of the mechanism of cathode and anode processes in the hydrogen sulfide degradation of oil and gas pipelines. This is explained by the multiplicity of factors affecting this mechanism, the complexity and insufficient study of individual elementary physicochemical processes, and therefore requires additional theoretical and experimental studies

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 score0.369
Threshold uncertainty score0.327

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 studies0.0000.001
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 head0.008
GPT teacher head0.191
Teacher spread0.183 · 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