Calculation of bottom feed gas volume in atmospheric and vacuum distillation units? ? Urgent help needed! !
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The atmospheric and vacuum distillation unit is designed for feedstock M100, which is heavy oil; the yield of light oil is approximately 18%, and the designed gas injection rate at the bottom of the atmospheric tower is 0.8%. It is currently used to process CNOOC Huizhou crude oil. The light oil recovery rate reaches 35-40% ； How can the bottom injection be adjusted?
What kind of oil is CNOOC Huizhou oil? There’s no such oil, right? . . There are no oil fields in Huizhou either. . . Is the designed yield for heavy oil and light oil 18% each? As I understand it, the original design for your plant called for a light oil yield of 18%; currently, this yield is between 35% and 40%, which indicates that the oil has become lighter in composition. Consequently, the amount of stripping steam required can be reduced appropriately, provided that this is done based on the overall load of your plant.
What this vaporization process takes into account are the parameters related to the cutting and control of oil quality; it’s not sufficient to rely solely on yield. It’s better to conduct an evaluation of the crude oil, and make adjustments based on the data obtained from that evaluation!