Reflux tank residence time
Thread Content
1) When the oil at the top of the tower is sent to the next process, the residence time is considered to be 15 minutes for liquid products or 5 minutes for reflux, with the higher of the two values being adopted. When the overhead product is gasoline or kerosene, to ensure water separation, the residence time is determined based on a flow rate of 5 minutes for the oil mixture (the sum of the product volume and the reflux volume) ； When the top product is diesel, a settling speed of 0.15 m/min is assumed. 2) As feed for other devices, consider a time range of 20 min to 30 min. What is the difference from going to the next process step and other devices? ? ? I hope the experts can give me some advice!
First of all, I’m not an expert. I understand that the process step refers to the next unit in this device (workshop). For example, the electrical refining unit after the extraction of vacuum distillation diesel ； The fluid generally moves to an area outside the main processing zone; for example, after diesel is extracted in the atmospheric and vacuum distillation units, it is sent to the hydrogenation unit.
That’s too modest of you. I completely agree with what you said; it has deepened my understanding of the devices and the manufacturing processes. Thank you so much!