Understand high-temperature sulfidation drivers, susceptible circuits, metallurgy, and the inspection evidence needed to distinguish a real rate change from measurement variation.
Module Overview
[FILL: Training brand]
Crude Corrosivity
Module 3
High-temperature sulfidation
Build practical confidence through short lessons, guided decisions, and field-ready checks.
Duration[FILL: Estimated duration]
FormatInteractive module
AssessmentKnowledge check
Updated[FILL: Updated date]
Module progress0%
Complete the module quiz to record progress.
Operational Scenario
[FILL: Sulfidation operating excursion]
[FILL: Present a high-temperature circuit with changes in sulfur content, metal temperature, or velocity. Ask the learner to identify the likely risk drivers and immediate checks.]
Topics and Subtopics
Select a topic to explore its main ideas, practical considerations, and subtopics.
Damage mechanism
Sulfidation mechanism and operating drivers
[FILL: Explain how sulfur species, temperature, flow, and metallurgy influence high-temperature sulfidation.]
Key point: [FILL: State the most important relationship between operating conditions and sulfidation rate.]
Operating factors to assess
[FILL: Explain how crude sulfur content or sulfur speciation affects exposure.]
[FILL: Explain the roles of metal temperature, velocity, and alloy composition.]
Assessment considerations
[FILL: Identify why bulk process temperature may not represent local metal temperature.]
[FILL: Describe an uncertainty in estimating damage rate from operating data alone.]
Choose a method
Subtopics
Expand a method to explore
Sulfur chemistry and temperatureView details
Method briefing
Sulfur chemistry and temperature
[FILL: Explain the sulfur species and temperature range relevant to the selected process.]
Velocity, flow regime, and metallurgyView details
Method briefing
Velocity, flow regime, and metallurgy
[FILL: Explain how local flow and material selection influence sulfidation susceptibility.]
Equipment and inspection
Affected circuits and inspection focus
[FILL: Identify the equipment and circuit locations most relevant to this course.]
Key point: [FILL: State the inspection priority for susceptible components.]
Locations and evidence to review
[FILL: List susceptible equipment, welds, or high-temperature circuit locations.]
Inspection considerations
[FILL: Describe limitations of inspection coverage or measurement techniques.]
Choose a method
Subtopics
Expand a method to explore
Circuit screening and susceptible componentsView details
Method briefing
Circuit screening and susceptible components
[FILL: Explain how to screen circuits and prioritize components for review.]
Interactive Challenge
Interactive diagnostic case study
[FILL: Sulfidation rate-change case]
[FILL: Case status]
[FILL: Present operating and inspection evidence. Ask the learner to distinguish a real change in exposure from measurement variation.]
[FILL: Sulfidation operating conditions and wall-loss trend]
Diagnostic clues
Check the exposure conditions
[FILL: Add a clue about sulfur, temperature, velocity, or metallurgy.]
Compare the inspection evidence
[FILL: Add a clue about measurement location, method, or repeatability.]
Reveal the explanation
[FILL: Sulfidation diagnosis]
[FILL: Explain the evidence and reasoning.]
Recommended action: [FILL: Recommended action or reference]
Field Checklist
Sulfidation review checklist
[FILL: Explain when learners should use this checklist.]
0 of 5 completed
Knowledge Check
Sulfidation knowledge check
[FILL: Instructions for the learner] Pass mark: 70%.
Not yet passed.
Score: 0 / 2
Next Steps
Continue the course
Naphthenic Acid Corrosion
Continue to Module 4 to explore crude chemistry, TAN, and naphthenic acid corrosion susceptibility.