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Reply To: COS LPG Coker

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#21538

Evan Hyde
Keymaster

Determining oxygen in resid is tricky. I’m not aware of any simple tests but FTIR and neutron activation analysis have been used in labs in research papers that I have read about ashphaltene molecules.

Regarding AF, 100k cSt is middle of the road in terms of MW. You might consider 300k or 600k cSt.

Purge, 6 volumes may help but I would sample to check and determine if the direction change is effective. Come to think of it, I would sample before and after any change to measure its effectiveness.

If you make a change, please let us know on the thread if it works!

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