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Record W63360873 · doi:10.5006/c2009-09163

Corrosion and Fouling in Petrochemical Environments

2009· article· en· W63360873 on OpenAlexaff
Brenda Ghiane Pena Santos

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldChemistry
TopicPetroleum Processing and Analysis
Canadian institutionsNova Chemicals (Canada)
Fundersnot available
KeywordsFoulingCorrosionPetrochemicalMetallurgyMaterials scienceEnvironmental scienceChemistryEnvironmental engineeringMembrane

Abstract

fetched live from OpenAlex

Abstract Although petrochemical process streams are primarily composed of hydrocarbons, corrosion and fouling is observed in various locations and environments in operating plants. An electrochemical high temperature and high pressure facility is used to study the corrosion behaviour of carbon, low alloy and stainless steels in several petrochemical environments. The electrochemical techniques such as cyclic voltammetry and open circuit potential measurements are used to study the effect of metallurgy and surface roughness on the initiation of corrosion/fouling on carbon and stainless steels in several solutions (i.e. naphtha, raw pyrolysis gasoline and quench tower bottoms). The experiments are conducted using a quasi reference Ag metal electrode. Initial results suggest that corrosion/fouling rates vary with surface roughness and conductivity, which are controlled, by varying the concentration of water. Scanning electron microscopy and energy dispersive X ray analysis (SEM/EDX) is used to look at the nature of the deposit formed after applying the aforementioned electrochemical techniques. Electrochemical impedance spectroscopy (EIS) is used to determine the solution resistance of naphtha and quench tower bottoms. A number of fouling characteristics including the time for initial surface coverage, the rate of film formation and the properties of the surface film have been studied using cyclic voltammetry and open circuit potential.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

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 head0.006
GPT teacher head0.221
Teacher spread0.215 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreOther

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2009
Admission routes1
Has abstractyes

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