| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: invention relates to the method including introduction of the heated raw material into the column for partial stripping with intake of light naphtha from the column top which is also used as reflux, intake of stillage residue, heating of stillage residue in a furnace and its distilling in a crude distillation unit equipped with the side steaming sections and delivery to the section bottom and complex water vapour column, intake of naphtha balance from the complex column, intake of kerosene cut, light and heavy diesel oil cuts from the side streams through the steaming sections and intake of fuel oil from the bottom of the complex column. The heated raw material is introduced as the upper and lower stream into the column for partial stripping. The lower stream, which is heated in the furnace and delivered to the column bottom, represents more than half of the raw material, naphtha balance is returned to spraying of the column of partial oil stripping and discharged with light naphtha and the side stream of the column of partial oil stripping delivered there into a section between intakes from it to the steaming sections of kerosene cut and light naphtha, at that in the section above the side stream of the column of partial oil stripping there should be 64% of the total number of plates installed in the column and in the stripper placed above the inlet of the heated stream to the column bottom there should be 9% of plates of the same total number.EFFECT: increasing feed capacity, reducing energy and capital expenditures.1 dwg, 3 tbl |
