How to handle oil-contaminated material from the solvent recovery and centralized regeneration process
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In our company, solvent regeneration is carried out on a centralized basis, and the facilities used include distillation, re-catalysis, hydrogen addition, and sulfur off-gas absorption. Currently, the regeneration system contains oil, which causes frequent overfilling of the regeneration tower； Upon inspection, it was found that the upstream unit contains oil, and this oil cannot be vaporized in the flash tank. How can this problem be resolved? Experts, please help!!
The oil is separated using the oil separator plate in the flash tank, and then discharged. The tower top reflux drum contains some light oil, and this oil can only be removed by draining the liquid level. It’s just a remedial measure. It is recommended to improve the operation of upstream equipment in order to reduce the amount of oil carried in.