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Alkene hydration reactor and application thereof

An olefin hydration and reactor technology, applied in chemical instruments and methods, hydroxyl addition preparation, organic chemistry, etc., can solve the problems of poor mutual solubility of cyclopentene and water, low reaction rate, etc., and reduce production costs and equipment investment. , Simplify the process flow, strengthen the effect of micro-mixing and micro-mass transfer

Active Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under mild reaction conditions, a high conversion rate is achieved, which solves the problem of poor miscibility between cyclopentene and water, the reaction system is two-phase, the hydration reaction only occurs at the interface, and the problem of low reaction rate

Method used

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  • Alkene hydration reactor and application thereof
  • Alkene hydration reactor and application thereof
  • Alkene hydration reactor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A total of 1000ml of DNW-Ⅱ temperature-resistant resin catalyst produced by Dandong Mingzhu Special Resin Co., Ltd. is charged into the reaction zone of the hydration reactor. Cyclopentene is added to storage tank E, and water, water and cyclopentane are added to storage tank F. The molar ratio of pentene is 5, and the feed space rate of cyclopentene is 0.5h -1 , The cyclopentene and water are pumped into the intermediate tank C respectively, and the circulating materials are pre-mixed in the intermediate tank, and then pumped into the water and the reactor through the pump, and hydration reaction occurs through impact. The circulating material volume is the feed volume 95% of it. The reaction temperature was controlled to 150°C and the reaction pressure was 4.0 MPa. The reaction product flowing out of the reactor discharge port was separated to separate unreacted cyclopentene. The remaining materials were analyzed by Agilent’s 6890N gas chromatograph, and the ring was me...

Embodiment 2

[0024] According to the method of Example 1, except that the feed space rate of cyclopentene is 2.0 h -1 , The amount of recycled materials is 75% of the feed rate. The reaction product flowing out from the discharge port of the reactor is separated to separate unreacted cyclopentene. The remaining materials are analyzed by Agilent's 6890N gas chromatograph, and the conversion rate of cyclopentene is measured to be 27.8%.

Embodiment 3

[0026] According to the method in Example 1, the cyclopentene feed space rate is 3.0 h -1 , The circulating material rate is 150% of the feed volume. The reaction product flowing out of the reactor discharge port is separated to separate unreacted cyclopentene. The remaining materials are analyzed by Agilent's 6890N gas chromatograph, and the conversion rate of cyclopentene is measured to be 25.8%.

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Abstract

The invention discloses an alkene hydration reactor, including a reactor housing, guide shells symmetrically arranged in the middle of reactor housing on the left and right sides, inlet pipes in the guide shells and passing through the reactor housing, and sieve plates installed between the guide shells and the reactor housing. A fluid impact region is formed between the outlets of the guide shells. Reaction zones are formed among the guide shells, sieve plates and the reactor housing, and each reaction zone is provided with at least one material outlet on the reactor housing. The reactor is suitable for continuous production of cyclopentanol, achieves high conversion rate in modem conditions, and solves the problems of weak intersolubility of cyclopentene and water, two phases of the reaction system, hydration reaction only in the interface, and low reaction rate.

Description

Technical field [0001] The invention relates to an olefin hydration reactor and its application. Background technique [0002] Cyclopentanol is an important intermediate for fine chemical products. It is mainly used to prepare bromocyclopentane, chlorocyclopentane, etc., and can be used to manufacture antibacterial and anti-allergic drugs. Cyclopentanol can be prepared from adipic acid through high temperature deacidification to produce cyclopentanone, and then obtained by hydrogenation reaction, but due to the production of a large amount of pollutants and the restriction of the source of raw materials, this preparation method is gradually eliminated. In addition, the C produced by petroleum cracking to produce ethylene 5 In the distillate, cyclopentene obtained after separation is used as a raw material, and cyclopentanol can also be produced through hydration reaction. There are two main hydration methods, one is indirect hydration, and the other is direct hydration. Althoug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/00C07C35/06C07C29/04
Inventor 霍稳周魏晓霞田丹刘野李花伊
Owner CHINA PETROLEUM & CHEM CORP
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