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Continuous reactor suitable for ion liquid catalyst and its use

A technology of ionic liquids and catalysts, applied in chemical methods for reacting liquids with liquids, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the problems of few reports and achieve reduction Effects of energy consumption, environmental protection, and reduction of solvent consumption

Active Publication Date: 2005-10-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to realize the replacement of traditional aluminum chloride catalysts with ionic liquid catalysts in alkylation industrial units, it is necessary to solve the problems of continuous operation, catalyst separation and catalyst circulation, but so far, the experimental equipment and industrialization of ionic liquid catalysts Few device reports

Method used

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  • Continuous reactor suitable for ion liquid catalyst and its use
  • Continuous reactor suitable for ion liquid catalyst and its use
  • Continuous reactor suitable for ion liquid catalyst and its use

Examples

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example 1

[0026] Though the continuous reactor in example 1 has only 1 unit, raw material and catalyzer are continuous feed, and reaction is uninterrupted; Although the batch reactor in comparative example 1 also can realize that catalyst is used repeatedly, Feeding and discharging are intermittent.

[0027] Examples 1-5 describe the preparation of docosyl benzene, tetracosyl toluene, hexadecyl naphthalene, dodecyl diphenyl ether and other alkyl-substituted aromatic compounds with 1+1 unit reactor instance.

[0028] If the three-way valve 9 is in the B state from the beginning to the end, then the catalyzer is only used once, and is not recycled (instance 1-4). When the time of the three-way valve 9 being in the A state and the B state is 5:1, the catalyzer is recycled 5 times , or the service time of the catalyst is 5 times (instance 5) when not circulating. Using the catalyst injection system of the present invention, the catalyst concentration in the reactor remained constant in al...

Embodiment 6

[0029] Example 6 describes the example of preparing tetracosylbenzene with 4+1 unit reactor. The catalyst circulation mode is the same as in Example 5.

Embodiment 1

[0030] Embodiment 1 Preparation of docosylbenzene

[0031] use figure 1 The shown 1+1 formula unit reactor produces long-chain alkylbenzene. The raw material is a mixture of benzene and an α-olefin with an average carbon number of 22 (NERATEN 20-24, Agrefur Corporation, an average molecular weight of 294). Concrete steps are as follows: 18g of ionic liquid type alkylation catalyst (RA101, Beijing Xingpu Fine Chemical Technology Development Company) is fed from catalyst inlet ( figure 1 , 7) into the reaction section ( figure 1 . figure 1 , 1) into the reaction section ( figure 1 , 2), when the liquid level height of the material is equal to the overflow port height, the effective volume of the reaction section is regarded as 20 liters. Reaction section temperature: 80°C, settling section temperature: 120°C. After 1 hour, the raw material was replenished from 1 at a flow rate of 20 L / h, and the catalyst was injected from 7 at a rate of 18 g / h. The reacted material automa...

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Abstract

The present invention relates to a continuous type reactor for ion liquid catalyst, including reaction section and settling section. The reaction section includes 1-8 series-connected reaction tanks, and the settling section includes a settling tank, in which reaction tank includes raw material inlet, new catalyst inlet, circulating catalyst inlet and material outlet, and the settling tank includes material inlet, material outlet and catalyst collector, said catalyst collector is positioned in the bottom portion of settling tank, and the outlet of the collector is connected with circulating catalyst inlet of reaction tank by means of pipeline, and the pipe line is set a valve for controlling circulating quantity of the catalyst. Said invention also provides its concrete application method.

Description

technical field [0001] The invention relates to a continuous reactor suitable for ionic liquid catalyst and an application method of the reactor. technical background [0002] Ionic liquids (RTILs), composed of organic cations and inorganic or organic anions, are liquid in the temperature range around room temperature. In the early 1980s, research institutions such as BP in the UK and IFP in France began to systematically explore the possibility of RTILs as solvents and catalysts. After the 1990s, people have been able to synthesize a series of stable RTILs. Using RTILs as a new catalyst, the applied research work in the field of organic synthesis is becoming more and more active. Gu Yanlong and others systematically reviewed RTILs in cycloaddition, alkylation, acylation, hydrogenation, C-C coupling, oxidation, cracking and isomerization, oxo synthesis, polymerization, Applications in nucleophilic substitution, cyclopropanation, halogenation of alkenes and alkynes, nitrat...

Claims

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Application Information

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IPC IPC(8): B01J14/00B01J27/08B01J31/02B01J35/12C07C2/20C07C2/60
Inventor 彭朴葸雷段启伟
Owner CHINA PETROLEUM & CHEM CORP
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