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Method for producing 2-propenyl ethanoate

A technology of allyl acetate and acetic acid, which is applied in the preparation of carboxylic acid esters, chemical instruments and methods, and the preparation of organic compounds, and can solve the problem of low selectivity and yield of allyl acetate and the unit consumption of allyl acetate products High, low utilization of reactants, etc., to achieve the effect of increasing selectivity and yield, improving utilization of reactants, and suppressing side reactions

Inactive Publication Date: 2018-01-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that in the existing allyl acetate production process, the utilization rate of reactants is low, the production cost is high, the unit consumption of allyl acetate product is high, and the selectivity and yield of allyl acetate are low.

Method used

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  • Method for producing 2-propenyl ethanoate
  • Method for producing 2-propenyl ethanoate
  • Method for producing 2-propenyl ethanoate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0046] Taking the 100,000 tons / year allyl acetate plant as the benchmark, the benchmark plant adopts a commonly used fixed-bed reactor type, the technology without recirculation flow, and the product unit consumption, selectivity and yield of the benchmark plant are benchmark values ​​of 1, investigate the embodiment The ratio of the incremental value of the reference device to the reference value can be easily understood to see the implementation effect of the method of the present invention.

[0047] according to figure 1 Described inventive method, implementation result is as shown in table 1.

[0048] Table 1

[0049] Example

Embodiment 5～8

[0051] Taking the 100,000 tons / year allyl acetate plant as the benchmark, the benchmark plant adopts a commonly used fixed-bed reactor type, the technology without recirculation flow, and the product unit consumption, selectivity and yield of the benchmark plant are benchmark values ​​of 1, investigate the embodiment The ratio of the incremental value of the reference device to the reference value can be easily understood to see the implementation effect of the method of the present invention.

[0052] according to figure 2 Described inventive method, implementation result is as shown in table 1. From Table 2, it can be seen that the main technical index unit consumption, selectivity and yield are close to those of Examples 1~4, mainly because figure 2 and figure 1 Compared with that, the booster equipment is only added, and the reaction conditions are not changed.

[0053] Table 2

[0054] Example

Embodiment 9～20

[0056] according to image 3 Described inventive method, implementation result is as shown in table 2. "Refining / recycling" in the table indicates the ratio of the mass flow rate of stream 321 to stream 32.

[0057] Table 2

[0058] parameter

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Abstract

The invention relates to a method for producing 2-propenyl ethanoate and mainly aims at solving the problems of low reactant utilization ratio, high production cost, high unit consumption of 2-propenyl ethanoate products as well as low selectivity and yield of 2-propenyl ethanoate in the existing 2-propenyl ethanoate production process. The problems are better solved by adopting the technical scheme that an unreacted reactant returns to a reactor. The method can be used for industrial production of 2-propenyl ethanoate.

Description

technical field [0001] The present invention relates to a kind of method of producing allyl acetate. technical background [0002] Allyl acetate is an important organic chemical raw material with a wide range of uses. The main method of producing allyl acetate in the world today is to use propylene, oxygen and acetic acid as raw materials, and adopt acetyl oxidation technology to make allyl acetate be generated by gas-phase catalytic reaction of propylene and oxygen. [0003] Propylene is catalyzed and oxidized by a catalyst in the presence of acetic acid to produce allyl acetate, and the reaction product contains a mixture of allyl acetate, propylene, oxygen, acetic acid, water, carbon dioxide and possibly other inert gases. The reaction mixture is typically separated into a gas stream comprising propylene, oxygen, acetic acid, water and carbon dioxide and a liquid stream comprising allyl acetate, acetic acid and water. Allyl acetate can be separated from the liquid strea...

Claims

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Application Information

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IPC IPC(8): C07C67/05C07C69/155
Inventor 胡帅金鑫
Owner CHINA PETROLEUM & CHEM CORP
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