Module 3: High-Temperature Sulfidation

[FILL: Summarize the sulfidation risks and learning outcomes for this module.]

Module Overview

[FILL: Training brand]
Crude Corrosivity
3
Topic
High-temperature sulfidation
Duration
[FILL: Estimated duration]
Format
Interactive module
Assessment
Knowledge check
Updated: [FILL: Updated date]
Module progress 0%

Complete the module quiz to record progress.

Authoring guide

Edit the [FILL: ...] values in this page's front matter. Add topics by copying an item under params.training.topics; add subtopics by copying an item under that topic's subtopics. Use unique lowercase IDs with hyphens.

Set params.moduleId to a unique ID beginning with params.topicId. Add it to the parent course's moduleList; also add it to videoModuleList and set params.hasVideo: true if it has a video. Set a module weight for its order and use training.previous_url / training.next_url (for example, ../module-2/) to connect sibling modules.

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.]

Subtopics

Sulfur chemistry and temperature
[FILL: Explain the sulfur species and temperature range relevant to the selected process.]
Velocity, flow regime, and metallurgy
[FILL: Explain how local flow and material selection influence sulfidation susceptibility.]

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
1. [FILL: Ask how sulfur chemistry and temperature affect sulfidation risk.]
2. [FILL: Ask which inspection or operating evidence should be checked next.]

Next Steps

Continue the course

Naphthenic Acid Corrosion

Continue to Module 4 to explore crude chemistry, TAN, and naphthenic acid corrosion susceptibility.

Previous module Next: Module 4