Combined hydrotreatment method and hydrotreatment system for petroleum resin

A petroleum resin and hydrogenation treatment technology, which is applied in the field of resin hydrogenation, can solve problems affecting product quality and distribution, shortening the operation cycle of the device, and affecting catalyst activity, etc., to achieve complete hydrogenation activity, avoid continuous deposition of impurities, and hydrogenation The effect of complete response

Active Publication Date: 2015-12-23
朗盈科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the prior art has reported methods for resin hydrogenation, it does not provide a solution for the purification of resin raw materials and the treatment of catalyst poisons, and rarely considers impurities in resin raw materials, such as sul...

Method used

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  • Combined hydrotreatment method and hydrotreatment system for petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Follow the steps below for combined petroleum resin hydrotreating:

[0054] (1) Mix the petroleum resin raw material with the circulating solvent at a mass ratio of 1:4, and the circulating solvent is formed by mixing cyclohexane and cycloolefin polymers with a molecular weight of 200 to 500; after high temperature treatment at 230°C, Airspeed 0.2s -1 After being made of alumina and activated carbon according to the spherical shape The adsorbent formed by graded loading is adsorbed to obtain refined petroleum resin;

[0055] In the resulting refined petroleum resin, the salt content is less than 1mg / L, the chlorine content is less than 1ppm, the sulfur content is less than 5ppm, and the gel content is less than 0.1%;

[0056] (2) The refined petroleum resin is mixed with a space velocity of 0.3s -1 Pass through a section of hydrogenation fixed bed filled with hydrogenation catalyst and inert catalyst, the hydrogenation catalyst is a clover-shaped hydrogenation catal...

Embodiment 2

[0060] Follow the steps below for combined petroleum resin hydrotreating:

[0061] (1) The petroleum resin raw material is mixed with a circulating solvent at a mass ratio of 1:3, and the circulating solvent is formed by mixing cyclohexane with a cycloolefin polymer with a molecular weight of 200 to 500; after high temperature treatment at 220°C, Airspeed 0.1s -1 After being made of alumina and activated carbon according to the spherical shape The adsorbent formed by graded loading is adsorbed to obtain refined petroleum resin;

[0062] In the resulting refined petroleum resin, the inorganic salt content is less than 1mg / L, the chlorine content is less than 1ppm, the sulfur content is less than 5ppm, and the gel content is less than 0.1%;

[0063] (2) The refined petroleum resin is mixed with a space velocity of 0.2s -1 Pass through a section of hydrogenation fixed bed filled with hydrogenation catalyst and inert catalyst, the hydrogenation catalyst is a clover-shaped hydr...

Embodiment 3

[0067] Follow the steps below for combined petroleum resin hydrotreating:

[0068] (1) Mix the petroleum resin raw material with the circulating solvent at a mass ratio of 1:5. The circulating solvent is mixed with toluene and a cycloolefin polymer with a molecular weight of 200-500; 0.3s -1 After being made of alumina and activated carbon according to the spherical shape The adsorbent formed by graded loading is adsorbed to obtain refined petroleum resin;

[0069] In the resulting refined petroleum resin, the inorganic salt content is less than 1mg / L, the chlorine content is less than 1ppm, the sulfur content is less than 5ppm, and the gel content is less than 0.1%;

[0070] (2) The refined petroleum resin is mixed with a space velocity of 0.4s -1 Pass through a section of hydrogenation fixed bed filled with hydrogenation catalyst and inert catalyst, the hydrogenation catalyst is a clover-shaped hydrogenation catalyst with refractory alumina and silicon oxide as the carri...

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Abstract

The invention relates to a combined hydrotreatment method for petroleum resin. The combined hydrotreatment method comprises the following steps of firstly, mixing raw materials of the petroleum resin with a recycled solvent; after a mixture is subjected to high-temperature treatment, adsorbing the mixture by using an adsorbing material to obtain refined petroleum resin; secondly, introducing the refined petroleum resin into a hydrogenation fixed bed which is used at the first stage and is filled with a hydrogenation catalyst, reacting the refined petroleum resin with hydrogen at a volume ratio of 1:500 to 1,000 under the conditions of 5 to 20MPa and 150 to 200DEG C, and removing toxic gases containing hydrogen chloride and hydrogen sulfide to collect liquid phase components; thirdly, introducing the liquid phase components into a hydrogenation fixed bed which is used at the second stage and is filled with the hydrogenation catalyst, reacting the liquid phase components with the hydrogen under the conditions of 10 to 20MPa and 220 to 280DEG C, performing flash evaporation on reactants to remove the recycled solvent, and collecting products to obtain the petroleum resin. The invention also provides a combined hydrotreatment system for the petroleum resin. By adopting the method and the system provided by the invention, hydrogenated petroleum resin with the advantages of No.0 chromaticity, good thermal stability and accordance with domestic standard requirements can be produced.

Description

technical field [0001] The invention relates to the field of resin hydrogenation, in particular to a combined petroleum resin hydrogenation process. Background technique [0002] Petroleum resin is a functional resin with a low relative molecular weight, generally less than 2000, and has the characteristics of thickening, cohesiveness and compatibility with other resins. It can be widely used in adhesive tapes, hot melts, road coatings, inks, and rubbers. Petroleum resins are generally produced by thermal polymerization or catalytic polymerization of by-product C5 and C9 fractions in the process of high-temperature cracking of hydrocarbons to produce ethylene. It contains small saturated bonds with very reactive arcs, and it is very easy to react with other compounds, but it cannot be used alone. It is generally used to mix with other compounds so that this compound can be modified for use. In order to further enhance its applicability in various fields, methods such as ph...

Claims

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Application Information

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IPC IPC(8): C08F240/00C08F8/04
Inventor 胡平龚腾勇赵月琴
Owner 朗盈科技(北京)有限公司
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