Method and device for hydrogenation modified rosin and c9/c5 petroleum resin in transcritical reaction system

A reaction system and petroleum resin technology, applied in the field of rosin deep processing, can solve the problems of limited application scope, deterioration of thermal stability and oxidation stability of resin, reduction of compatibility between resin and application objects, etc., to improve thermal efficiency, Conducive to manufacturing, reducing the effect of heat-to-work conversion process

Active Publication Date: 2017-08-29
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The C9 / C5 petroleum resin obtained through thermal polymerization or catalytic polymerization will contain a certain amount of double bond unsaturated compounds, darker in color, low in softening degree, poor in stability, and prone to reactions under the action of ultraviolet rays, oxygen or other chemical substances , making the thermal stability and oxidation stability of the resin worse, and also reducing the compatibility between the resin and the application object; especially C9 / C5 petroleum resin contains a small amount of organic sulfur, which is easy to poison the catalyst and limit its application range

Method used

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  • Method and device for hydrogenation modified rosin and c9/c5 petroleum resin in transcritical reaction system
  • Method and device for hydrogenation modified rosin and c9/c5 petroleum resin in transcritical reaction system
  • Method and device for hydrogenation modified rosin and c9/c5 petroleum resin in transcritical reaction system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-4 As shown, the device for hydrogenation of modified rosin and C9 / C5 petroleum resin in the transcritical reaction system includes: dissolution kettle 1, hydrogenation reactor 2, expander 3, gas-liquid separator 4, absorption tower 5, permeation Flat compressor 6, solvent pump 7.

[0041] The discharge port of the dissolution tank 1 is connected with the feed port of the hydrogenation reactor 2, and the dissolution tank 1 is used for dissolving raw materials required for production. The hydrogenation reactor 2 is cylindrical. The upper part of the hydrogenation reactor is provided with a feed inlet 21, a gas outlet 22, and the bottom is provided with a discharge outlet 23. The hydrogenation reactor 2 includes a heating pipe 24, which is a heating coil. It is arranged inside the hydrogenation reactor; the gas distributor 25 includes an air inlet 251 and a plurality of nozzles 252 for exhaust; the expander 3 is connected to the gas outlet of the hydroge...

Embodiment 2

[0050] The reaction unit that uses is identical with embodiment 1, a kind of transcritical reaction system hydrogenation modified turpentine and C9 / C5 petroleum resin method, comprises the following steps:

[0051] (1) Prepare raw materials, use turpentine and C9 / C5 petroleum resin as raw materials, mix its hydrogenated turpentine and modified bentonite loaded nickel, add turpentine, C9 / C5 petroleum resin and solvent in a mass ratio of 1:3:1, The amount of nickel loaded on the modified bentonite is 10% of the total mass of turpentine and C9 / C5, put it into the dissolution kettle 1, and heat to dissolve;

[0052] (2) Hydrogenation reaction, put the mixture prepared in step (1) into the hydrogenation reactor 2, then heat the temperature up to 150°C, and fill the hydrogenation reactor with a molar ratio of H 2 :CO 2 = 1:1 mixed gas until the pressure is 10.0MPa, continue to heat up to 250°C;

[0053] (3) Maintain the pressure in the hydrogenation reactor 2 to be 10.0MPa, open t...

Embodiment 3

[0056] The reaction unit that uses is identical with embodiment 1, a kind of transcritical reaction system hydrogenation modified turpentine and C9 / C5 petroleum resin method, comprises the following steps:

[0057] (1) Prepare raw materials, take turpentine and C9 / C5 petroleum resin as raw materials, mix its hydrogenated turpentine and modified bentonite loaded nickel, add turpentine, C9 / C5 petroleum resin and solvent in a mass ratio of 10:10:1, The amount of nickel loaded on the modified bentonite is 30% of the total mass of turpentine and C9 / C5, put into the dissolution kettle 1, and heat to dissolve;

[0058] (2) Hydrogenation reaction, put the mixture prepared in step (1) into the hydrogenation reactor 2, then heat the temperature up to 150°C, and fill the hydrogenation reactor with a molar ratio of H 2 :CO 2 = 20:1 mixed gas until the pressure is 7.0MPa, continue to heat up to 250°C;

[0059] (3) Maintain the pressure in the hydrogenation reactor 2 at 7.0MPa, open the g...

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Abstract

The invention discloses a turpentine-C9 / C5 petroleum resin blend hydrogenation modification method which comprises the following steps: (1) raw material preparation: mixing raw materials turpentine and C9 / C5 petroleum resin with a solvent and a catalyst, and dissolving by heating; (2) hydrogenation reaction: putting the mixture prepared in the step (1) into a hydrogenation reactor, charging a gas mixture of H2 and CO2 in a mole ratio of 1:1-20:1, and carrying out hydrogenation reaction at 150-400 DEG C under the pressure of 3.0-35.0 MPa; (3) taking out the reacted gas mixture in the hydrogenation reactor, passing the gas through an expander which is connected with a turbine compressor, supplementing the CO2-H2 gas mixture into the turbine compressor, and introducing the gas mixture into the hydrogenation reactor; and (4) after carrying out hydrogenation-desulfurization reaction for 1-10 hours, relieving the pressure, and discharging the blend hydrogenation modified turpentine-C9 / C5 petroleum resin product out of the hydrogenation reactor. The method enhances the hydrogenation-desulfurization reaction speed and equilibrium conversion rate, and implements coupling of the hydrogenation reaction and desulfurization separation.

Description

technical field [0001] The invention relates to the field of rosin deep processing, in particular to a method and device for hydrogenating modified rosin and C9 / C5 petroleum resin in a transcritical reaction system. Background technique [0002] C9 / C5 petroleum resin is a thermoplastic hydrocarbon resin formed by pretreatment, polymerization and distillation of the C9 fraction of pyrolysis gasoline, a by-product in the process of pyrolysis of petroleum hydrocarbons to prepare ethylene. It has the characteristics of high resistance, cohesiveness and easy compatibility with other resins, and has low acid value, water resistance, alcohol resistance and chemical resistance, good chemical stability and thermal stability, and can adjust viscosity. It is widely used in paints, rubbers, inks , Hot melt, adhesive tape and adhesive industry. Adding C9 / C5 petroleum resin to the paint can increase the gloss of the paint, improve paint adhesion, hardness, acid resistance and alkali resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00C08F8/04C08L57/02C08L93/00C08L93/04C09F1/04B01J8/08
Inventor 陈小鹏王琳琳韦小杰梁杰珍周龙昌丁永辉唐伟超韦彩琴张鹏鹏
Owner GUANGXI UNIV
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