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Defoaming agent composition and application in delay coking

A technology of composition and defoamer, applied in the field of defoamer composition, composite silicon-free defoamer composition and its application in delayed coking coke tower, which can solve the problem of insufficient active components, penetration and diffusion Slow, poor high temperature resistance, etc., to achieve the effect of more active components, less dosage, and larger spreading coefficient

Active Publication Date: 2014-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defoamer does not contain any silicon element, and will not affect the downstream hydrogenation process and the quality of the final light oil product, but the disadvantage is that the active components are not enough, and the penetration and diffusion in the tower are slow, so the addition amount is large, The cost is higher than that of silicone defoamers, while the high temperature resistance is poor, and the defoaming efficiency is low at high temperatures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: described defoamer is formulated by the raw material of following mass parts: 30 parts of glycerine type dendritic polyethers, 40 parts of octadecyl alcohol stearates, 25 parts of coking wax oils, 5 parts of isooctyl alcohols share. The above raw materials are mixed and stirred at 80°C for 2 hours, and the finished product is obtained after cooling.

Embodiment 2

[0021] Embodiment 2: described defoamer is formulated by the raw material of following mass parts: 40 parts of glycerol type dendritic polyethers, 15 parts of ethylenediamine bisstearamides, 15 parts of ethylenediamine monooleic acid amides, coking 30 parts of wax oil. The above raw materials are mixed and stirred at 100°C for 2 hours, and the finished product is obtained after cooling.

Embodiment 3

[0022] Embodiment 3: described defoamer is formulated by the raw material of following mass parts: 40 parts of glycerol type dendritic polyethers, 20 parts of octadecyl alcohol stearates, 15 parts of ethylenediamine bis stearamides, 25 parts of hydrogenated diesel oil. The above raw materials are mixed and stirred at 70°C for 2 hours, and the finished product is obtained after cooling.

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PUM

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Abstract

The invention relates to a non-silicon defoaming agent composition which is prepared by compounding 30 to 50 parts by mass of glycerol-type dendritic polyether, 20 to 40 parts by mass of high carbon alcohol fatty acid ester or fatty acid amide and 20 to 30 parts by mass of a solvent. The non-silicon defoaming agent composition does not contain silicon, is good in dispersibility, high in defoaming speed, when the adding amount is about 30 mu g / g, the defoaming rate can reach over 90%, and the non-silicon defoaming agent composition has a strong defoaming performance, and can be used for coke tower defoaming processing in the delay coking process.

Description

technical field [0001] The invention relates to a defoamer composition and its application, in particular to a composite silicon-free defoamer composition and its application in a delayed coking coke tower, belonging to the technical field of fine chemicals. Background technique [0002] Delayed coking is a thermal processing process for deep cracking of residual oil into coker dry gas, coker gasoline, coker diesel oil, coker gas oil and coke. The raw material residue of delayed coking contains natural surfactant, which makes a large amount of foam in the coking reaction tower during the delayed coking process, forming a very high foam layer. The foam layer contains a large amount of coke powder. When the coke layer in the coke tower rises to a certain height in the later stage of coking, the foam layer will be carried from the oil and gas pipeline at the top of the coke tower to the fractionation tower together with the coke oil gas, causing coking in the fractionation towe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04C10G9/00
Inventor 刘纾言王鑫孙鹏赵起超孙国权
Owner CHINA PETROLEUM & CHEM CORP
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