| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: method of gasoline stabilisation is implemented by unstable gasoline delivery to the feed zone of the stabiliser tower, output of stabilisation fumes from the top of the stabiliser tower and output of liquid from below of the stabiliser tower. Stabilisation is carried out in a vertical fractionating unit with falling-down film and three heat-and-mass exchange sections, one of them is located above the feed zone while the two remaining sections - the medium and the lower one - are located below the feed zone. The upper heat-and-mass exchange section of the fractionating unit is cooled by delivery of the cooling agent to the upper part and outputting it from below part of the heat-and-mass exchange section. The medium and the lower heat-and-mass exchange sections of the fractionating unit are heated up by heat medium delivery to the lower part and outputting it from below of the section and by delivery of stable gasoline from below of the fractionating unit to the lower part and outputting it from the upper part of the medium heat-and-mass exchange section.EFFECT: simplifying the method, increasing output of the stable products and reducing energy costs.1 dwg, 3 ex |
