Power-off electrodialysis for oil removal in atmospheric and vacuum distillation units
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Is electrical desalting for oil removal during the shutdown of a atmospheric and vacuum distillation unit carried out before the unit shuts down, or is it done together with the subsequent steps?； Especially at 140°C for electrodialysis, it drops to a relatively high level during storage and transportation.
1. Incorporating it into the crude oil cycle is the most scientific approach. 2. It’s no problem to return it to the crude oil tank or the hot oil tank at 140°C.
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