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Delay coking coke cooling water demulsifier composition and preparation method and application thereof

A technology of delayed coking and demulsifier, which is applied in the field of chemical auxiliary demulsifier and demulsifier composition for oily sewage, can solve the problems of heat waste, increasing equipment pressure drop and equipment investment, increasing system water consumption and equipment investment, etc. , to achieve the effect of good water solubility and convenient filling

Active Publication Date: 2012-11-07
天津市瑞德赛恩新材料开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method increases equipment pressure drop and equipment investment, as well as floor space
At the same time, there are serious blockage problems in the hot water lift pump and degreaser, which affect the normal operation of the system
[0005] Patent CN1754829A discloses a method and device for coking sewage treatment. Part of the cold coke water and hot cold coke water are mixed into the hot water buffer tank, and part of the high-temperature oil and gas discharged from the coke tower is cleaned while reducing the temperature of the sewage, reducing from the source Oil and gas pollution, but increased system water consumption and equipment investment, resulting in waste of heat
[0006] The existing technology mainly involves the use of equipment for demulsification and separation, but there are few reports on the method of adding demulsifiers

Method used

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  • Delay coking coke cooling water demulsifier composition and preparation method and application thereof
  • Delay coking coke cooling water demulsifier composition and preparation method and application thereof
  • Delay coking coke cooling water demulsifier composition and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0026] A preparation method of a demulsifier composition, comprising the steps of: mixing 160g polyethylene polyamine propylene polyoxypropylene ether (16%), 200g sodium hexametaphosphate (20%), 140g propylene glycol polyoxypropylene polyoxyethylene block Polyether (14%), 120g sodium ethylenediaminetetramethylene phosphonate (12%), and 380g deionized water (38%) were added to a container, stirred and mixed evenly, cooled to room temperature, and filtered to obtain a demulsifier composition A product.

Embodiment 2

[0028] A preparation method of a demulsifier composition, comprising the steps of: mixing 250g alkylphenol formaldehyde resin polyoxyethylene polyoxypropylene ether (25%), 200g trisodium phosphate (20%), 250g propylene glycol polyoxypropylene polyoxyethylene Block polyether (25%), 200g sodium ethylenediamine tetramethylene phosphonate (20%), 100g deionized water (10%), add to the container, stir and mix evenly, cool to room temperature, filter to obtain demulsifier Composition B product.

Embodiment 3

[0030] A preparation method of a demulsifier composition, comprising the following steps: 120g of alkylphenol formaldehyde resin polyoxyethylene polyoxypropylene ether (12%), 200g of polyaspartic acid (sodium) (20%), 120g of Pingpingjia O-15 (12%), 110g hydroxyethylidene diphosphoric acid (11%), 450g deionized water (45%), add to the container and heat, stir and mix well, cool to room temperature, filter to obtain demulsifier composition C product.

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Abstract

The invention relates to a delay coking coke cooling water demulsifier composition and a preparation method and application thereof. The demulsifier composition comprises the following components in percentage by mass: 1 to 25 percent of demulsifier, 1 to 20 percent of dispersing agent, 1 to 25 percent of penetrating agent, 1 to 20 percent of corrosion inhibitor and the balance of solvent. The invention also provides the preparation method for the demulsifier composition and the application of the demulsifier composition to a delay coking device. The demulsifier composition mainly contains the demulsifier, the dispersing agent, the penetrating agent, the corrosion inhibitor and the solvent. By the demulsifier composition, the coke cooling water can be demulsified quickly, and the oil content of water can be reduced obviously; a water body is clear after demulsification; the corrosion of the water body to equipment can be reduced; and meanwhile, the demulsifier composition does not contain any inorganic ion, so that the influence on the conventional water body system is avoided.

Description

technical field [0001] The invention belongs to the technical field of industrial sewage treatment, relates to a chemical auxiliary demulsifier, in particular to a demulsifier composition applied to oily sewage produced by decoking a delayed coking coke tower, and a preparation method and application thereof. Background technique [0002] Delayed coking is the process of converting residual oil into gas, light and middle distillate oil and coke through deep thermal cracking. It is the main means for refineries to increase the yield of light oil and produce petroleum coke. [0003] The removal of coke adopts hydraulic decoking technology. During the cooling and removal process of coke, dust, sewage, waste gas and other pollutants will inevitably be generated, which will seriously affect the device and the surrounding environment, especially in the case of large water supply cooling coke, soaking coke, During the overflow process, a large amount of oily and sulfurous sewage wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/40
Inventor 黄晓明付春生
Owner 天津市瑞德赛恩新材料开发有限公司
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