HEAT BALANCE OF THE VACUUM DISTILLATION COLUMN – KEY FOR IDENTIFICATION OF THE REASON FOR LOW HEAVY VACUUM GAS OIL YIELD
Dicho Stratiev, Ivelina Shishkova, Petya Dermatova
Lukoil Neftochim Bourgas – R&D Department, 8104 Bourgas, Bulgaria,
Abstract
Estimation of heat balance of the vacuum distillation column of atmospheric resid in the Lukoil Neftochim Bourgas identified the reason for a decrease in the heavy vacuum gas oil yield.
The hypothesis of a leakage of the heavy vacuum gasoil draw tray was rejected and it was found that the hydraulic resistance in the heavy vacuum gas oil pump around did not allow an increase of its flow rate and taking away the heat required for condensation of heavy vacuum gas oil, contained in atmospheric residue.
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