FIELD: vacuum distillation.
SUBSTANCE: invention relates to a method for the vacuum distillation of hydrocarbon residues and heavy fractions, including the supply of raw materials to the furnace, passing the stream heated in the furnace to the lower part of the main vacuum distillation column with an additional vacuum distillation column located below the main part of the vacuum column. The method includes installation between the lower part of the main vacuum distillation column and the upper part of the additional vacuum distillation column of a chimney tray, while ensuring the release of the vapor phase from the upper part of the additional vacuum distillation column to the block of the vacuum system.
EFFECT: increase in the energy efficiency of operation and extraction of gas oil fractions, as well as a reduction in greenhouse gas emissions during the operation of the facility.
4 cl, 2 dwg
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| 0 |
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SU1525192A1 |
