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Method for improving flash evaporation effect of C5 petroleum resin

A carbon five petroleum resin and flash evaporation technology, which is applied in the field of improving the flash evaporation effect of carbon five petroleum resin, can solve problems such as large hue, low softening point, and low viscosity of resin liquid, so as to save energy, improve flash evaporation effect, and improve quality effect

Active Publication Date: 2022-03-18
广东鲁众华新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a certain link in the production process fluctuates, it will cause the associated light components to be directly brought into the next process without being completely removed, and it is irreversible, resulting in abnormal indicators of petroleum resin, such as low softening point , large hue, strong odor with light components, etc., which seriously affect the quality of C5 petroleum resin
In severe cases, the viscosity of the resin liquid is low and the form is thin, resulting in the failure of the resin granulation process to complete the granulation packaging

Method used

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  • Method for improving flash evaporation effect of C5 petroleum resin
  • Method for improving flash evaporation effect of C5 petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) The C5 petroleum resin polymer liquid that has been flashed once enters the feed preheater 1 to be heated, and the feed flow rate is 7m 3 / h, the shell side medium is steam with a pressure ≥ 4.0MPa, and the heating temperature is 250°C. The heated resin polymerization liquid enters the second flash tower 2 for flash evaporation, the pressure inside the tower is -50KPa, the stripping steam is 60kg / h, and the light components are condensed and removed by the second flash tower condenser 3 .

[0029] 2) The resin liquid in the tank of the second flash tower is sent to the third flash tower 5 for flash evaporation through the extraction pump 4 of the second tower tank, and the resin liquid level in the tank of the second flash tower must be controlled at 40 -60%. The pressure in the third flash tower 5 tower is ultimate vacuum, and the stripping steam is 60kg / h, and the liquid resin with small molecular weight is condensed and removed through the third flash tower conde...

Embodiment 2

[0033] 1) The C5 petroleum resin polymer liquid that has been flashed once enters the feed preheater 1 to be heated, and the feed flow rate is 8m 3 / h, the shell-side medium is steam with a pressure ≥ 4.0MPa, and the heating temperature is 260°C. The heated resin polymerization liquid enters the second flash tower 2 for flash evaporation, the pressure inside the tower is -45KPa, the stripping steam is 60kg / h, and the light components are condensed and removed by the second flash tower condenser 3.

[0034] 2) The resin liquid in the second flash tower 2 tower tank is sent to the third flash tower 5 for flash evaporation through the second tower tank extraction pump 4, and the resin liquid level in the second flash tower tower tank should be controlled at the same time. 40-60%. The pressure in the third flash tower 5 tower is ultimate vacuum, and the stripping steam is 60kg / h, and the liquid resin with small molecular weight is condensed and removed through the third flash tower...

Embodiment 3

[0038] 1) The C5 petroleum resin polymer liquid enters the feed preheater 1 to be heated, and the feed flow rate is 7m 3 / h, the shell side medium is steam with a pressure ≥ 4.0MPa, and the heating temperature is 280°C. The heated resin polymerization liquid enters the second flash tower 2 for flash evaporation, the pressure inside the tower is -50KPa, the stripping steam is 65kg / h, and the light components are condensed and removed by the second flash tower condenser 3.

[0039] 2) The liquid level of the resin liquid in the second flash tower kettle is controlled at 40-60%, and sent to the third flash tower 5 for flash evaporation through the extraction pump 4 of the second tower kettle, the pressure in the tower is ultimate vacuum, and the stripping The steam is 65kg / h, and the liquid resin with small molecular weight is condensed and removed through the third flash tower condenser 9, the liquid level of the tower still is controlled at 40-60%, and the qualified C5 petroleu...

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Abstract

The invention discloses a method for improving the flash evaporation effect of C5 petroleum resin, belongs to the technical field of C5 petroleum resin processing, and mainly solves the problem of poor flash evaporation effect in the prior art. Specifically, C5 petroleum resin polymer liquid subjected to primary flash evaporation is preheated by a feed preheater and then enters a second flash evaporation tower for flash evaporation, light components are discharged through the top of the second flash evaporation tower and condensed, C5 petroleum resin liquid in a tower kettle continues to enter a third flash evaporation tower for flash evaporation, and liquid resin with small molecular weight is discharged through the top of the third flash evaporation tower and condensed; c5 petroleum resin liquid in the tower kettle is discharged through a tower kettle extraction pump and enters a subsequent process. According to the method, the flash evaporation effect of the C5 petroleum resin can be effectively improved, the softening point adjusting method is added, the quality of the C5 petroleum resin is improved, and maximum recycling of energy is achieved.

Description

technical field [0001] The invention relates to the technical field of C5 petroleum resin processing, more specifically, it relates to a method for improving the flashing effect of C5 petroleum resin. Background technique [0002] C5 petroleum resin is a very representative main product in C5 comprehensive utilization projects. Due to its simple synthesis, low price, good alkali resistance, water resistance and weather resistance, and good compatibility with organic matter, etc., Its application is more and more extensive. [0003] The process usually used for synthesizing C5 petroleum resin is as follows: first, pretreat the C5 raw material to thermally dimerize the CPD to generate DCPD, then polymerize the C5 fraction in a solvent using Lewis acid as a catalyst, and then carry out the reaction polymerization liquid. Wash to remove the catalyst used. The polymerization solution is distilled to remove light components such as unreacted carbon five and solvent, and then the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F6/00C08F6/10C08L57/02
CPCC08F6/003C08F6/10C08L57/02
Inventor 蒋俭黄健晟潘志业
Owner 广东鲁众华新材料有限公司
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