The preparation method of hydrogenated dicyclopentadiene resin

A technology of dicyclopentadiene and hydrogenation method, which is applied in the field of preparation of dicyclopentadiene resin, can solve problems such as unsolved dicyclopentadiene resin, complicated separation process, and underutilization of cyclopentadiene, and achieves Obvious superiority, high energy consumption, and the effect of reducing labor intensity

Inactive Publication Date: 2016-03-09
陈国兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the process has carried out hydrogenation, the separation process is complicated, and the cyclopentadiene in the C5 raw material has not been fully utilized
[0006] In summary, prior art has not solved the various problems that dicyclopentadiene resin exists

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Raw material preparation: Dicyclopentadiene with a mass content of 85% to 95% produced by Lanzhou Xinlan Chemical Co., Ltd. and cracked carbon five cuts produced by Lanzhou Petrochemical Co., Ltd. are mixed in a static mixer at a weight ratio of 1:1.8;

[0030] (2) Polymerization reaction: send the raw materials prepared in step (1) into the preheater to preheat to 200°C, then into the polymerization reactor, replace the residual air in the reactor with nitrogen, then heat the reaction materials and start stirring , thermally polymerized for 10 hours at a reaction temperature of 250-260°C and a pressure of 2.1Mpa to obtain a crude resin liquid, which was sent to a crude product storage tank for use;

[0031](3) One-stage hydrogenation: The crude resin liquid is heated to 240°C through a heating furnace, and then the crude resin liquid and hydrogen are mixed into a one-stage low-pressure hydrogenation reactor equipped with a stage catalyst. Airspeed 1.0h -1 1. Under...

Embodiment 2

[0035] (1) Preparation of raw materials: Dicyclopentadiene and cyclohexane with a mass content of 85% to 95% produced by Lanzhou Xinlan Chemical Co., Ltd. are mixed in a weight ratio of 1:1.5;

[0036] (2) Polymerization reaction: feed the raw materials prepared in step (1) into a preheater to preheat to 210°C, and then into a polymerization reactor, and thermally polymerize at a reaction temperature of 250-260°C and a pressure of 2.1Mpa for 12 hours to obtain crude resin solution;

[0037] (3) One-stage hydrogenation: heat the crude resin liquid through a heating furnace, then mix the crude resin liquid and hydrogen into a one-stage low-pressure hydrogenation reactor equipped with a one-stage catalyst. h -1 Under the condition of 300:1 volume ratio of hydrogen to oil, one-stage hydrogenation is carried out, and the first-stage catalyst is a tungsten-nickel catalyst supported on alumina; based on the mass and mass percentage of the catalyst, the first-stage catalyst contains ...

Embodiment 3

[0041] (1) Raw material preparation: mix dicyclopentadiene and cyclopentane with a mass content of 85% to 95% in a weight ratio of 1: 2.0;

[0042] (2) Polymerization reaction: feed the raw materials prepared in step (1) into a preheater to preheat to 210°C, and then into a polymerization reactor, and thermally polymerize for 9 hours at a reaction temperature of 250-260°C and a pressure of 2.1Mpa to obtain crude resin solution;

[0043] (3) One-stage hydrogenation: heat the crude resin liquid through a heating furnace, then mix the crude resin liquid and hydrogen into a one-stage low-pressure hydrogenation reactor equipped with a one-stage catalyst. h -1 Under the condition of a volume ratio of 150:1 to hydrogen and oil, one-stage hydrogenation is carried out. The first-stage catalyst is a tungsten-nickel catalyst supported on alumina. The alumina carrier is alumina produced by Beijing Research Institute of Chemical Industry, and the brand is BCA-31. Based on the mass and ma...

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Abstract

The invention discloses a hydrogenated dicyclopentadiene resin, belonging to the technical field of resins. In order to enhance the product quality and production efficiency of the dicyclopentadiene petroleum resin and reduce the three-waste emission and labor intensity, the invention provides a white high-light / heat-resistance hydrogenated dicyclopentadiene petroleum resin which is prepared by the following steps: producing a dicyclopentadiene petroleum resin liquid by a hot polymerization process, and directly continuously carrying out a fixed bed two-section hydrogenation technique on the resin liquid. No catalyst is used in the polymerization process, thereby enhancing the quality of the resin product and reducing the three-waste emission. The polymerized crude resin liquid is directly continuously subjected to fixed bed two-section hydrogenation, thereby greatly enhancing the production efficiency and lowering the labor intensity.

Description

technical field [0001] The present invention relates to a kind of preparation method of petroleum resin, more specifically, the present invention relates to a kind of preparation method of the dicyclopentadiene resin of hydrogenation by taking carbon five distillate as raw material. Background technique [0002] The amount of the by-product C5 fraction in the ethylene cracking unit is about 15% to 20% of the ethylene production, while the C5 fraction contains 20% to 30% of the sum of cyclopentadiene (CPD) and dicyclopentadiene (DCPD). The separation process of C5 fraction has matured, but how to utilize the separated DCPD has become a new topic. A set of 300,000-ton ethylene plant has a potential DCPD resource of 7-9kt / a. At present, my country has entered the era of large-scale ethylene, and the scale of domestic ethylene projects under construction and newly built is 800,000 tons / year or above. With Daqing Petrochemical, Fushun Petrochemical, Wuhan Petrochemical and Huizh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00C08F8/04
Inventor 陈国兴马庭洲
Owner 陈国兴
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