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Emergency treatment method for crude vinyl acetate

A crude vinyl acetate and vinyl acetate technology, applied in the direction of transporting passenger cars, tank cars, railway car body parts, etc., can solve the problems of major production safety responsibilities, accidents, uncontrolled polymerization of vinyl acetate storage tanks, etc. The effect of preventing violent gathering accidents

Active Publication Date: 2013-10-30
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vinyl acetate storage tanks in most vinyl acetate storage devices cannot withstand these pressure environments. The crude vinyl acetate storage tanks of Guangxi Vinylon Factory exploded for this reason, causing major production safety liability accidents. Other major vinyl acetate manufacturers also Near miss accident involving runaway polymerization of vinyl acetate storage tanks

Method used

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  • Emergency treatment method for crude vinyl acetate
  • Emergency treatment method for crude vinyl acetate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The vinyl acetate storage device of the present invention comprises a vinyl acetate storage tank 1, a vinyl acetate material feed valve 2 arranged on the vinyl acetate storage tank, a temperature sensor 3 arranged on the vinyl acetate storage tank, a cooler 4, Discharge pump 5, emergency discharge valve 6, discharge valve 7, material feed pipeline, discharge pipeline, spray water device and spare storage tank 10 made up of spray head 8 and water supply pipeline 9, described The material feed valve 2 is connected to the vinyl acetate storage tank 1 through the material feed pipeline, one end of the discharge pump 5 is connected to the vinyl acetate storage tank 1 through the discharge pipeline, and the other end is connected to the vinyl acetate storage tank 1 through the discharge pipeline. One branch of the pipeline is connected to the emergency discharge valve 6, the other branch of the discharge pipeline is connected to the discharge valve 7, and the emergency dischar...

Embodiment 2

[0062] Crude vinyl acetate material is housed in the vinyl acetate storage tank 1 in the vinyl acetate storage device in embodiment 1, determines that this crude vinyl acetate reaches the required time TMRad=24h of maximum reaction rate under adiabatic condition, judges crude vinyl acetate When the crude vinyl acetate is in a dynamic state, the emergency treatment temperature is set at 63°C. The temperature of the crude vinyl acetate material in the vinyl acetate storage tank is measured in real time by the temperature sensor 3 provided on the crude vinyl acetate storage tank; when the temperature of the crude vinyl acetate material in the storage tank reaches the emergency treatment temperature of 63°C, Close the crude vinyl acetate material feed valve 2, cut off the feed, open the polymerization inhibitor feed valve at the same time, add a large amount of polymerization inhibitor to the vinyl acetate storage tank 1, and pass the crude vinyl acetate material in the vinyl aceta...

Embodiment 3

[0064] Crude vinyl acetate material is housed in the vinyl acetate storage tank in the vinyl acetate storage device in embodiment 1, confirms that this crude vinyl acetate reaches the required time TMRad=24h of maximum reaction rate under adiabatic condition, judges the crude vinyl acetate In the existing state, when the crude vinyl acetate is static, the temperature sensor on the vinyl acetate storage tank detects that the initial storage temperature of the crude vinyl acetate material stored in the storage tank is 30°C, and the emergency treatment temperature setting It is 41°C. The temperature of the crude vinyl acetate material in the vinyl acetate storage tank is measured in real time by the temperature sensor 3 provided on the crude vinyl acetate storage tank; when the temperature of the crude vinyl acetate material in the storage tank reaches the emergency treatment temperature of 41°C, Close the crude vinyl acetate material feed valve 2, cut off the feed, open the poly...

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Abstract

The invention provides a vinyl acetate storage device, which comprises a vinyl acetate storage tank, a vinyl acetate material feeding valve, a temperature detecting device, a cooler and a standby device, wherein the vinyl acetate material feeding valve and the temperature detecting device are arranged on the vinyl acetate storage tank, and the vinyl acetate storage tank is connected with the standby device via the cooler. When the vinyl acetate storage device is used for storing crude vinyl acetate, reasonable emergency treatment temperature is set and effective emergency treatment measurements are put forward for the crude vinyl acetate stored in the vinyl acetate storage device during operation and stoppage of the vinyl acetate storage device, so that flash polymerization danger of the crude vinyl acetate stored in the vinyl acetate storage tank facing incontrollable polymerization is eliminated, and flash polymerization accidents are prevented.

Description

technical field [0001] The invention relates to the technical field of chemical safety, in particular to an emergency treatment method for crude vinyl acetate. Background technique [0002] Vinyl acetate is one of the 50 largest chemical raw materials in the world. A synthetic polymer compound obtained by polymerization or copolymerization of vinyl acetate. Because it can produce a series of derivatives such as polyvinyl acetate, polyvinyl alcohol, and acetal resin, vinyl acetate has been widely used in the fields of coatings, synthetic fibers, leather processing, and soil improvement. more and more widely used. [0003] Vinyl acetate monomer (VA) is a readily polymerizable chemical intermediate and a building block for many polymer and emulsion applications. Laboratory data shows that under normal circumstances, the storage of specification grade vinyl acetate monomer (VA) will not form polymers, but experience has shown that polymerization initiators are easily introduce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D88/74B65D90/22B65D90/48
Inventor 姜杰刘世均张晨谢传欣石宁付武华孟庭宇周波张宏哲孙峰黄飞
Owner CHINA PETROLEUM & CHEM CORP
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