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A treatment method for waste oil produced by delayed coking steam blowing

A delayed coking and treatment method technology, applied in the field of waste oil treatment, can solve problems such as difficult sales, high COD, and difficult separation, and achieve the effects of effective treatment, energy saving, and increased yield

Active Publication Date: 2020-12-08
SHANDONG YIDA NEW MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The static sedimentation method needs to add two additional dehydration tanks, and due to the different density of the settled oil, an interlayer will be formed in the water, which will bring difficulties to the separation
In addition, the water contains a lot of organic substances, resulting in high COD, which causes great difficulties in sewage treatment.
[0004] The demulsification method is to add a demulsifier to the dehydration tank. Although this method effectively solves the problem of oil-water separation and reduces the COD content in water, the separated oil contains other components brought by the demulsifier, which is difficult to sell.

Method used

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  • A treatment method for waste oil produced by delayed coking steam blowing

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Embodiment １

[0019] The present embodiment provides a kind of processing method of the dirty oil that the delayed coking large steam blowing produces, and the delayed coking system that it uses comprises coke tower 1, fractionation tower 2, vent tower 3, wherein the tower top of coke tower 1 is connected with the top of fractionation tower 2 respectively The lower section is connected with the lower pipeline of the vent tower 3. The tower bottom of the fractionation tower 2 is connected to the heating furnace through a heating furnace feed pump 11 pipeline.

[0020] The tower top of the vent tower 3 is connected with the vent tower liquid separator tank 4 pipelines through the vent tower top heat exchanger 12, and the bottom of the vent tower liquid separator tank 4 is connected with the upper pipeline of the vent tower 3 through the vent tower top sewage pump 5, And the outlet end of the waste oil pump 5 at the top of the vent tower is also connected to the water supply pipeline at the bo...

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Abstract

The invention discloses a sump oil treatment method for retarding coking large blowing generation. The method comprises the steps of refluxing sump oil at the top of an emptying tower to a coke chamber for recycling, fractionating oil water of the sump oil by utilizing heat in the coke chamber to obtain gasoline, diesel and other high-value oil products according to different fraction temperatures. Therefore, energy can be saved, and the recycling rate of waste oil can be improved.

Description

technical field [0001] The invention relates to the technical field of delayed coking, in particular to a treatment method for waste oil produced by delayed coking blowing steam. Background technique [0002] In delayed coking production, a large amount of steam and oil gas generated by the blowing steam of the coke tower enters the lower part of the vent tower and is separated in the tower. The heavy oil settles to the bottom of the tower, and the steam and light oil and gas leave from the top of the vent tower, and after being cooled by the cooler, they become tower top waste oil and enter the liquid separation tank. The oil-water density difference of the waste oil at the top of the tower is extremely small, the emulsification is serious, and it is difficult to separate, and usually the separated waste oil has a high water content and is not easy to handle. The production cycle of the device is greatly shortened. [0003] At present, the commonly used treatment technolo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G9/00C10G55/00
CPCC10G9/00C10G55/00
Inventor 彭莉李慎耐李军树郭冲郭新房罗朋
Owner SHANDONG YIDA NEW MATERIAL