API Exam API-571 Topic 1 Question 86 Discussion

Actual exam question for API's API-571 exam

Question #: 86
Topic #: 1

Sulfidation is primarily caused by:

AImpacting particles.

BSulfur compounds decomposing at higher temperatures.

CSulfur compounds being created in the FCCU (Cat Cracking Unit).

DElemental sulfur collecting in stagnate areas, e.g. dead legs.

EOperators failing to adequately control the ph of sulfur streams.

Show Suggested Answer

Suggested Answer: B

by Francesco at May 10, 2024, 12:18 PM

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5 months ago

Okay, B it is then. But this question was tough!

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6 months ago

I'd go with B. Higher temperatures often cause more issues.

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6 months ago

I agree with User3. But D is also compelling. Elemental sulfur could collect in dead legs.

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6 months ago

Yeah, B seems right. Sulfur compounds decomposing at higher temperatures make sense to me.

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6 months ago

I think it's tricky. I narrowed it down to B and D.

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6 months ago

So, what do you guys think about the question on sulfidation?

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