Method for preparing hydrogenated petroleum resin by using dicyclopentadiene as a raw material

A technology of dicyclopentadiene and petroleum resin, which is applied in the field of preparing high-quality hydrogenated petroleum resin, can solve the problems of large material loss, high cost, and no simple and effective method to solve harmful impurities and the like

Pending Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technologies all have certain effects, but there are obvious deficiencies in practical operation, production cost and product stability (fluctuating with the resin raw material used for hydrogenation), such as the high cost of hydrodesulfurization, and the high cost of colloid treatment. The effect is not good; the material loss of the adsorption method is large, the solid waste is difficult to handle, the combined process is complicated, and the cost is high, etc.
In addition, due to the high temperature during the hydrogenation reaction, the resin will produce gel due to oligomerization, and the coke will cover the surface of the catalyst and deposit in the pores, reducing the activity of the catalyst.
[0006] This shows that there is no easy and effective method to solve the problem of harmful impurities in the prior art

Method used

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  • Method for preparing hydrogenated petroleum resin by using dicyclopentadiene as a raw material
  • Method for preparing hydrogenated petroleum resin by using dicyclopentadiene as a raw material
  • Method for preparing hydrogenated petroleum resin by using dicyclopentadiene as a raw material

Examples

Experimental program
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Embodiment 1～10

[0026] The dicyclopentadiene used in Examples 1-10 is derived from the crude dicyclopentadiene product separated from the C5 separation device. Its components are shown in Table 1.

[0027] Table 1.

[0028] components

Content (wt.%)

CPD

0.3

DCPD

84.0

NB

9.5

carbon six

1.2

other

5.0

[0029] Crude dicyclopentadiene is processed and synthesized hydrogenated petroleum resin according to the following process:

[0030] 1) The DCPD raw material is mixed with an organic solvent and then continuously passed through a tubular reactor with a static mixing element for thermal polymerization to generate petroleum resin;

[0031] 2) The DCPD polymerization solution obtained in step 1) is passed through a fixed bed filled with a high-nickel catalyst, and harmful impurities such as sulfur in the raw material are removed in an atmosphere facing hydrogen;

[0032] 3) adding a colloidal polymerization inhibitor to the petr...

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Abstract

The invention discloses a method for preparing a hydrogenated petroleum resin by using dicyclopentadiene as a raw material. According to the present invention, the influence of gel, sulfur and other impurities on hydrogenated petroleum resins is eliminated by adopting the desulfurization and hydrogenation process, the service lives of the pretreatment catalyst and the hydrogenation catalyst are improved, the operating cost and the equipment investment are reduced, the high-quality hydrogenated petroleum resin is obtained, the product quality stability can be maintained, and the benefits can beincreased.

Description

technical field [0001] The invention relates to a method for preparing hydrogenated petroleum resin by using dicyclopentadiene as a raw material, in particular to the use of a high-nickel catalyst to remove high-molecular organic sulfur in DCPD resin and the control of the polymerization process to solve the harmful poison of resin hydrogenation, and to prepare high-quality Method for quality hydrogenated petroleum resin. Background technique [0002] Dicyclopentadiene (DCPD) hydrogenated resin is a high-end product in the petroleum resin industry. It retains the ring structure, and its interaction with the matrix polymer is greater than that of straight-chain aliphatic hydrocarbon resins. Its bonding performance is better than that of ordinary C5 hydrogenated resins. Especially suitable for the field of disposable sanitary materials: food packaging supplies, pressure-sensitive tapes, disposable diapers, women's sanitary napkins and other hot-melt adhesives. [0003] Due to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00C08F8/04C08F2/40
Inventor 黄勇秦技强叶军明常慧曹强陆鑫瞿卫国方玲王禾
Owner CHINA PETROLEUM & CHEM CORP
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