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Multifunctional C3 polymerization inhibitor

A polymerization inhibitor and multi-functional technology, applied in the field of multifunctional carbon three polymerization inhibitor, can solve the problems of poor compatibility and large dosage, and achieve the effect of inhibiting the polymerization reaction and realizing long-term operation.

Inactive 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

However, the product has disadvantages such as large dosage and poor compatibility, so we have developed this multifunctional carbon three inhibitor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A multifunctional carbon three polymerization inhibitor, consisting of the following components by weight: 15Kg of 2,6-di-tert-butylphenol, 15Kg of diethylhydroxylamine, 5Kg of isobutanol, 5Kg of monosuccinimide Amine and 1Kg of propylene glycol polyoxypropylene polyoxyethylene block polyether, 59Kg No. 190 solvent oil.

Embodiment 2

[0024] A multifunctional carbon three polymerization inhibitor, consisting of the following components by weight: 40Kg of 2,6-di-tert-butylphenol, 20Kg of diethylhydroxylamine, 15Kg of isobutanol, 15Kg of monosuccinimide Amine and 5Kg of propylene glycol polyoxypropylene polyoxyethylene block polyether, 5Kg of No. 190 mineral spirits.

Embodiment 3

[0026] A multifunctional carbon three polymerization inhibitor, consisting of the following components by weight: 30Kg of 2,6-di-tert-butylphenol, 15Kg of diethylhydroxylamine, 5Kg of isobutanol, 10Kg of monosuccinimide Amine and 5Kg of propylene glycol polyoxypropylene polyoxyethylene block polyether, 35Kg No. 190 mineral spirits.

[0027] Prepare according to the proportions of the multifunctional carbon three polymerization inhibitors described in Examples 1-3. The formula amounts of No. 190 solvent oil, isobutanol, diethylhydroxylamine, monosuccinimide, 2,6 - Di-tert-butylphenol was added to the stirred tank in sequence, and stirred at 350 r / min. After stirring for 20 minutes, a quantitative amount of propylene glycol polyoxypropylene polyoxyethylene block polyether was added. After stirring for 15 minutes, the finished product was filtered and packaged. The products obtained according to the proportions of Examples 1-3 are A, B, and C, respectively.

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PUM

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Abstract

The invention provides a multifunctional C3 polymerization inhibitor which is formed by the following components by weight percentage of: 15-40% of 2,6-ditertiary butyl phenol, 10-20% of diethyl hydroxylamine, 5-15% of isobutanol, 5-15% of monobutyl imidodicarbonic diamide, 1-5% of propylene glycol polypropylene oxide polyoxyethylene block polyether, and of the balance of #190 solvent oil. Meanwhile, the invention further provides a method for preparing the polymerization inhibitor. The polymerization inhibitor can be rapidly dispersed so as to realize the inhibition effect on olefin polymerization to the greatest extent; and meanwhile, the polymerization inhibitor can effectively remove scales.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a multifunctional carbon three polymerization inhibitor. Background technique [0002] During the operation of the depropanizer system of the ethylene plant, fouling deposits are formed due to the polymerization of diolefins in the material, which reduces the mass transfer and heat transfer efficiency of the tower equipment and affects the operating load and cycle of the device. Injecting a polymerization inhibitor slows down the rate of fouling. With the heavierization of the raw material and the increase of the cracking depth, the diolefin concentration in the depropanizer system material increases faster and scales faster, which puts forward higher requirements for the performance of the polymerization inhibitor. [0003] Before the 1970s, compounds with the properties of preserving olefin monomers and inhibiting the self-polymerization of olefins were mainly used, usually so...

Claims

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Application Information

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IPC IPC(8): C07C7/20C10G75/04
Inventor 林洪新
Owner 天津市瑞德赛恩新材料开发有限公司
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