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High temperature resistant defoamer for delaying coking reaction tower

A technology of delayed coking and reaction tower, applied in the field of defoamer and high temperature resistant defoamer, can solve the problems of the influence of hydrotreating device and high silicon content in the product, and achieve the effect of inhibiting and foaming and eliminating foaming.

Active Publication Date: 2013-11-06
金浦新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the silicon content of the product is too high, which has a great impact on the downstream hydrotreating unit

Method used

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  • High temperature resistant defoamer for delaying coking reaction tower
  • High temperature resistant defoamer for delaying coking reaction tower
  • High temperature resistant defoamer for delaying coking reaction tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 50 grams of modified polysiloxane compound A, 10 grams of phenyl silicone oil, and 40 grams of heavy aromatic solvent oil into a 250mL round bottom flask, heat at 60°C, and stir with magnetic force for 1 hour to obtain the product.

Embodiment 2

[0032] Take 20 grams of modified polysiloxane compound A, 20 grams of phenyl silicone oil, and 60 grams of heavy aromatic solvent oil into a 250mL round bottom flask, heat at 60°C, and stir with magnetic force for 1 hour to obtain the product.

Embodiment 3

[0034] Take 30 grams of modified polysiloxane compound A, 30 grams of phenyl silicone oil, and 40 grams of heavy aromatic solvent oil into a 250mL round bottom flask, heat at 60°C, and stir with magnetic force for 1 hour to obtain the product.

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Abstract

The invention relates to high temperature resistant defoamer for delaying a coking reaction tower, which comprises the following components: 20 percent to 50 percent of a modified polysiloxane compound, 10 percent to 30 percent of phenyl silicone oil, 30 percent to 70 percent of organic solvent, and the proportion is mass percentage. The high temperature resistant defoamer for delaying the coking reaction tower is mainly used for delaying the coking reaction tower, can effectively suppress and eliminate the foam in the coking tower and prolong the coke producing time, so that the utilization rate of the coking tower is improved, particularly the yield of light oil is improved, and the production energy consumption of the device is significantly reduced.

Description

technical field [0001] The invention belongs to the field of petrochemical industry and relates to a defoamer, in particular to a high-temperature-resistant defoamer used for suppressing and eliminating foam layers in delayed coking coke towers of oil refineries. Background technique [0002] Delayed coking is that the residual oil passes through the heating furnace tube at a high speed at a high temperature and enters the reactor for reaction, so that the condensation reaction and cracking reaction in the residual oil are delayed to the coke tower. The raw material residue contains natural surfactant, which makes the material in the coke tower produce a stable foam layer, which will have many adverse effects on the operation of the coke tower; the foam will entrain the material into the pipeline before the fractionation tower, causing Coking, even clogging, requires regular decoking, reducing the operating cycle. The excessively high foam layer also occupies the effective ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D19/04
Inventor 林家敏戴泽青王春柱康国培
Owner 金浦新材料股份有限公司
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