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Application of a kind of olefin hydration reactor

A technology of olefin hydration and reactor, which is applied in chemical instruments and methods, hydroxyl addition preparation, organic chemistry, etc. It can solve the problems of poor miscibility between cyclopentene and water and low reaction rate, and reduce production cost and equipment investment , Simplify the process flow, strengthen the effect of micro-mixing and micro-mass transfer

Active Publication Date: 2016-01-20
CHINA PETROLEUM & CHEM CORP +1
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  • 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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  • Application of a kind of olefin hydration reactor
  • Application of a kind of olefin hydration reactor
  • Application of a kind of olefin hydration reactor

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. was loaded into the reaction zone in the hydration reactor, cyclopentene was added to storage tank E, water was added to storage tank F, and water and cyclopentene were added. The molar ratio of pentene is 5, and the feed space rate of cyclopentene is 0.5h -1 , pump cyclopentene and water into intermediate tank C respectively, pre-mix with circulating material in intermediate tank, then inject water and reactor through pump, hydration reaction occurs through impact, and the amount of circulating material is feed amount 95% of. The reaction temperature is controlled to be 150°C, and the reaction pressure is 4.0MPa. The reaction product flowing out from the outlet of the reactor is separated to separate unreacted cyclopentene, and the remaining materials are analyzed by a 6890N gas chromatograph of Agilent Company. The conversion of pentene was 35.6%.

Embodiment 2

[0024] According to the method of embodiment 1, just cyclopentene feed space velocity is 2.0h -1 , The amount of recycled material is 75% of the feed amount. The reaction product flowing out from the outlet of the reactor was separated to separate unreacted cyclopentene, and the remaining materials were analyzed by 6890N gas chromatograph of Agilent Company, and the conversion rate of cyclopentene was measured to be 27.8%.

Embodiment 3

[0026] According to the method of embodiment 1, the cyclopentene feed space velocity is 3.0h -1 , the circulating material rate is 150% of the feed amount. The reaction product flowing out from the discharge port of the reactor was separated to separate unreacted cyclopentene, and the remaining materials were analyzed by 6890N gas chromatograph of Agilent Company, and the conversion rate of cyclopentene was 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 the application of an olefin hydration reactor. Background technique [0002] Cyclopentanol is an important intermediate of fine chemical products, mainly used in the preparation of bromocyclopentane, chlorocyclopentane, etc., and can be used to manufacture antibacterial, antiallergic and other drugs. Cyclopentanol can be obtained from adipic acid through high-temperature deacidification to obtain cyclopentanone, and then through hydrogenation reaction. However, due to the large amount of pollutants and the restriction of raw material sources, this preparation method is gradually eliminated. In addition, C 5 In the distillate, cyclopentene obtained through separation is used as raw material, and cyclopentanol can also be produced through hydration reaction. There are two main methods of hydration, one is the indirect hydration process, and the other is the direct hydration process. Although the indirect hydration process has...

Claims

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Application Information

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Patent Type & Authority Patents(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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