Chemical reaction method

A technology of chemical reaction and esterification reaction, applied in the field of chemical reaction, can solve the problems of high content of side reaction products and low selectivity, achieve the effects of shortening residence time, strengthening mass transfer process, and reducing the generation of by-products

Active Publication Date: 2011-10-19
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is the technical problem of low selectivity and

Method used

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Embodiment 1

[0024] The esterification reaction of methanol, oxygen and NO is carried out in a high gravity reactor to produce methyl nitrite. Adopt attached figure 1 The supergravity reactor device shown.

[0025] The amount of raw material gas containing NO is 100m 3 / h, where the concentration of NO is 10%v (the rest is nitrogen), and the gas volume of oxygen is 2m 3 / h, the two gases enter the supergravity reactor through the gas inlet 1, and diffuse into the rotating packing 2 under the action of the pressure difference, and the rotating packing speed is adjusted to 2000 rpm. The methanol solution is introduced into the liquid distributor 6 and the inner side of the rotating packing 2 through the liquid inlet pipe 8 through the liquid inlet 4. The molar ratio of NO to methanol in the gas is 1:10, and the gas and liquid are in countercurrent contact in the packing, and the reaction product contains The gas effluent of methyl nitrite is discharged through the gas outlet 3, and the liquid e...

Embodiment 2

[0027] Esterification of ethanol, oxygen and NO is carried out in a high gravity reactor to produce ethyl nitrite. Adopt attached figure 2 The supergravity reactor device shown.

[0028] The amount of raw material gas containing NO is 100m 3 / h, where the concentration of NO is 15%v (the rest is nitrogen), and the gas volume of oxygen is 3m 3 / h, the two gases enter the high gravity reactor through the gas inlet 3, and diffuse into the rotating packing 2 under the action of the pressure difference, and the rotating packing speed is adjusted to 2000 rpm. The ethanol solution is introduced into the liquid distributor 6 and the inner side of the rotating packing 2 through the liquid inlet pipeline 8 through the liquid inlet 4. The molar ratio of NO to ethanol in the gas is 1:8, and the gas and liquid are in cocurrent contact in the packing, and the reaction product The gas effluent containing ethyl nitrite is discharged through the gas outlet 1, and the liquid effluent after the r...

Embodiment 3

[0030] Dehydrogenation of pyrolysis gasoline benzene acetylene is carried out in a high gravity reactor. Adopt attached figure 1 The supergravity reactor device shown.

[0031] Using theta alumina as the carrier, the nickel catalyst with a loading amount of 13% was prepared by the loading method. The liquid phase raw material is a carbon eight fraction containing 40% styrene, 10% ethylbenzene, and 0.1% phenylacetylene in terms of weight percentage. , The gas is hydrogen, and the catalyst is fixed on the rotating packing.

[0032] The hydrogen enters the high gravity reactor through the gas inlet 1, and diffuses into the rotating catalyst layer 2 under the action of the pressure difference, and the rotating speed of the rotating catalyst layer is adjusted to 3000 rpm. The carbon eight fraction solution containing phenylacetylene is introduced into the liquid distributor 6 and the inside of the rotating catalyst 2 through the liquid inlet line 8 through the liquid inlet 4. The hydro...

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Abstract

The invention relates to a chemical reaction method, which mainly solves the technical problems of low selectivity on target products and high content of side reaction products in the prior art. In the invention, the problems are favorably solved by adoption the technical scheme that: the chemical reaction is carried out in an overweight force field without the presence of catalysts or the chemical reaction is carried out in the overweight force field in the presence of the catalysts. The chemical reaction method is applicable to the industrial production of chemical reaction.

Description

Technical field [0001] The invention relates to a chemical reaction method, in particular to the chemical reaction being carried out in a supergravity field in the presence of a non-catalyst, or the chemical reaction being carried out in a supergravity field in the presence of a catalyst. Background technique [0002] Chemical reactions are widely used in the petrochemical industry, chemical industry, petrochemical industry, biochemical industry and environmental engineering. Almost all chemical reactions have problems of internal and external diffusion, such as diffusion between reaction materials, diffusion between reaction materials and catalysts, and diffusion between products and catalysts. Due to the poor mass transfer effect, the diffusion problem in the conventional gravity field becomes the main factor hindering the smooth progress of the chemical reaction. In practical applications, chemical reactions under conventional gravity fields generally have the following short...

Claims

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Application Information

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IPC IPC(8): B01J19/18B01J19/28B01J10/00B01J8/10
Inventor 刘俊涛李蕾张惠明
Owner CHINA PETROLEUM & CHEM CORP
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