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Styrene storage method and styrene storage device

A styrene and storage tank technology, applied in the field of styrene storage devices, can solve problems such as the inability to effectively control the storage temperature, and achieve the effects of avoiding the risk of tank cleaning and maintenance, fast cooling, and avoiding corrosion and leakage

Inactive Publication Date: 2018-07-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects that the existing methods and devices for storing styrene cannot effectively control the storage temperature, and styrene is prone to self-polymerization to form polymers, and provide a method for storing styrene and a storage device for styrene

Method used

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  • Styrene storage method and styrene storage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In a volume of 100m with an external cooling system 3 Storage tank 1 stores 70m 3 Styrene, when the external temperature is 30°C, turn on the external circulation pump 2 to make the external circulation ratio 18%, cool down the styrene in the storage tank, and transport it back to the storage tank when the styrene is cooled to 20°C. The cooler 3 in the external circulation cooling system is a fixed tube-sheet heat exchanger. The tube side of the fixed tube-sheet heat exchanger is fed with styrene, and the shell side is fed with brine at a temperature of -5°C. Record the time required for the temperature of styrene in the storage tank to cool to 20°C, and take samples to measure the content of styrene dimer in the storage tank. The results are shown in Table 1.

Embodiment 2

[0047] In a volume of 100m with an external cooling system 3 Storage tank 1 stores 70m 3 Styrene, when the external temperature is 30°C, turn on the external circulation pump 2 to make the external circulation ratio 15%, cool down the styrene in the storage tank, and transport it back to the storage tank when the styrene is cooled to 20°C. The cooler 3 in the external circulation cooling system is a fixed tube-sheet heat exchanger. The tube side of the fixed tube-sheet heat exchanger is fed with styrene, and the shell side is fed with brine at a temperature of -5°C. Record the time required for the temperature of styrene in the storage tank to cool to 20°C, and take samples to measure the content of styrene dimer in the storage tank. The results are shown in Table 1.

Embodiment 3

[0049] In a volume of 100m with an external cooling system 3 Storage tank 1 stores 70m 3 Styrene, when the external temperature is 30°C, turn on the external circulation pump 2 to make the external circulation ratio 12%, cool down the styrene in the storage tank, and transport it back to the storage tank when the styrene is cooled to 20°C. The cooler 3 in the external circulation cooling system is a fixed tube-sheet heat exchanger. The tube side of the fixed tube-sheet heat exchanger is fed with styrene, and the shell side is fed with brine at a temperature of -5°C. Record the time required for the temperature of styrene in the storage tank to cool to 20°C, and take samples to measure the content of styrene dimer in the storage tank. The results are shown in Table 1.

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Abstract

The invention relates to the field of elastic materials and discloses a styrene storage method and a styrene storage device. The styrene storage method provided by the invention comprises the steps ofstoring styrene in a storage tank provided with an external circulating cooling system, circulating part of the styrene through the external circulating cooling system so as to cool the styrene in the storage tank, wherein the external circulation ratio of the external circulating cooling system is 10-20%, preferably 12-18%. The styrene storage device provided by the invention comprises the storage tank used for storing the styrene and the external circulating cooling system, wherein part of the styrene from the storage tank is circulated through the external circulating cooling system so asto cool the styrene in the storage tank. By reasonably controlling the external circulation ratio of the external circulating cooling system, the storage temperature of the styrene is effectively controlled, the condition of polymerization of the styrene can be improved without extra addition of a polymerization inhibitor, and the storage life of the styrene is prolonged.

Description

technical field [0001] The invention relates to the field of elastic materials, in particular to a method for storing styrene and a storage device for styrene. Background technique [0002] Styrene-butadiene resin is a block copolymer synthesized by using styrene and butadiene as monomers, using alkyllithium as initiator, and anionic solution polymerization technology. Its main characteristics are high transparency and good resistance Impact, low density, strong tinting strength, excellent processing performance, non-toxic, it is widely used in food packaging, medical equipment, cosmetics, refrigerator manufacturing, electrical instrument panels and other materials (such as polystyrene GPPS, styrene / acrylonitrile Copolymer SAN, styrene-maleic anhydride copolymer SMA, syndiotactic polystyrene SPP, high impact polystyrene HIPS, etc.) blending modification and other fields. [0003] The styrene monomer used in the production of styrene-butadiene resin has strong polymerizabili...

Claims

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Application Information

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IPC IPC(8): B65D88/74
CPCB65D88/744
Inventor 赵英徐林张国娟王晨静
Owner CHINA PETROLEUM & CHEM CORP