A kind of method that acetone and hydrogen synthesize acetone condensate

A technology of acetone condensate and acetone, which is applied in the direction of chemical instruments and methods, preparation of organic compounds, carbon-based compounds, etc., can solve the problems of undisclosed application of high-gravity reactors, and achieve uniform distribution of reactants and mass transfer efficiency The effect of high and low investment costs

Active Publication Date: 2022-05-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technologies disclosed in these patent applications all utilize the advantages of high-gravity reactors to enhance mass transfer, and do not disclose the application of high-gravity reactors in the one-step synthesis of acetone condensation products from acetone and hydrogen

Method used

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  • A kind of method that acetone and hydrogen synthesize acetone condensate
  • A kind of method that acetone and hydrogen synthesize acetone condensate
  • A kind of method that acetone and hydrogen synthesize acetone condensate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Catalyst preparation method: Weigh Co (NO 3 ) 2 ·6H 2 O solid powder 42.91g, called Pr(NO 3 ) 3 ·6H 2 O Solid powder 11.02g, put into a beaker, add 50g of distilled water to the beaker, stir until Co (NO 3 ) 2 ·6H 2 O and Pr(NO 3 ) 3 ·6H 2 O All dissolved to give a salt solution; using the prepared salt solution impregnated with 100g strip alumina carrier, using one-step impregnation. After maceration, it is dried at 100 °C and calcined at 420 °C to obtain a catalyst. The main active components of the catalyst are cobalt with a mass content of 8%, the additive is praseodymium with a mass content of 4%, and the support is alumina.

[0039]Super gravity rotating bed setting: The above strip catalyst is placed into the mesh support inner part and fixed to the rotor of the supergravity rotating bed to form a catalyst bed that can be rotated. The inner diameter (radius) of the bed is 0.06m, the outer diameter (radius) of the bed is 0.26m, and the thickness of the bed is 0.2m.

...

Embodiment 2

[0053] As in Example 1, the only difference that exists is: the supergravity rotating bed is set to a bed inner diameter (radius) of 0.06m, the outer diameter of the bed (radius) is 0.36m, and the thickness of the bed is 0.3m.

[0054] When the speed of the supergravity rotary bed reactor is 200 rpm, 400 rpm, 600 rpm, 800 rpm, 1000 rpm, the residence time of the liquid phase component is calculated according to Equation 1, the liquid phase component flow rate L is 25 ml / h, and the residence time in the catalyst bed is 16.78s, 7.89s, 5.07s, 3.71s, 2.91s, respectively.

[0055] When the reaction is carried out for 100h, the liquid collected in the first and second tanks for nearly ten minutes is mixed together and analyzed. The main component content of the reaction product is listed in Table 3.

[0056] Table 3 The main components of the product after 100h reaction

[0057]

[0058]

[0059] When the reaction is carried out for 1000h, the liquid collected in the first tank and th...

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Abstract

The invention belongs to the field of chemical industry, and discloses a method for synthesizing acetone condensate from acetone and hydrogen. The method comprises: mixing acetone and hydrogen, entering into a high-gravity rotating bed, and mixing with a rotor arranged on the high-gravity rotating bed. The catalyst bed layer is contacted, and after the reaction, a liquid phase component and a gas phase component containing acetone condensate are obtained; the residence time of the liquid phase component in the catalyst bed layer is τ≤20s. The present invention introduces a high-gravity rotating bed reactor into the reaction of acetone and hydrogen one-step synthesis of acetone condensation products, significantly reduces the residence time of liquid products in the catalyst bed, and alleviates / eliminates the prolongation of the reaction time. The phenomenon of carbon deposition and coking prolongs the service life of the catalyst, and at the same time changes the conversion rate of reactants and the selectivity of products.

Description

Technical field [0001] The present invention belongs to the chemical field, more specifically, relates to a method of acetone and hydrogen synthesis of acetone condensate, more specifically a method of synthesizing acetone condensate in one step of acetone and hydrogen. Background [0002] Methyl isobutyl ketones (MIBK) is an excellent medium boiling point solvent and chemical intermediates, which are widely used in oil refining, medicine, coatings, fuels, chemicals and other fields. As a solvent, methyl isobutyl ketone has the advantages of colorless transparency, non-toxicity, stable performance, good solubility, and complete miscible with general organic solvents, and is mostly used in the production of inks, automobiles, video tapes, tapes and other products. At the same time, methyl isobutyl ketone is also a very important fine chemical raw material, mainly used in the production of rubber antioxidant 4020 substances, 4-methyl-2-pentanol (MIBC), heptanenitrile, epoxy resin c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C45/73C07C49/04
CPCC07C45/73C07C49/04Y02P20/10
Inventor 向良玉唐国旗田保亮宋超李宝芹
Owner CHINA PETROLEUM & CHEM CORP
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