RU203584U1 - Vegetable oil hydrogenation device using a magnetic stirrer - Google Patents

Abstract

The proposed useful model relates to the field of hydrogenation of substances and can be used for hydrogenation of rapeseed oil, in particular for saturating the oil with hydrogen, improving the dissolution of hydrogen in the oil and increasing the mixing rate of rapeseed oil. oil with hydrogen, improving the dissolution of hydrogen in oil and increasing the mixing rate of rapeseed oil. In the claimed device, the container is evacuated, liquid rapeseed oil is sucked into the container, a stirrer with a magnetic coupling and a vacuum pump are turned on, the oil is heated to 110-120 ° C and circulated by a circulation pump for remove moisture. After the oil has dried, the catalyst is sucked in through a funnel for feeding dry components, the container is purged with argon several times to remove dissolved oxygen. The hydrogen supply is opened to create operating pressure (up to 20 bar), the heater is turned on. The reaction is carried out under temperature control. Primary heating is carried out to 120-140 ° C, then the mixture heats up spontaneously due to the exothermic effect upon absorption of hydrogen. The temperature is controlled within 200 ° C. After the end of the reaction, the hydrogen supply is shut off, the mixture is cooled by supplying a heat carrier (water) to the cooling circuit. Cooling is carried out up to 100-105 ° С. The excess pressure is relieved by venting to atmosphere. The container is evacuated and flushed with argon several times to remove dissolved hydrogen. To precipitate the catalyst, bleaching clay is sucked in through a funnel for supplying dry components, mixing is carried out for 1 hour, then the mixture with a temperature of 90-100 ° C is passed through a filter to remove the spent catalyst and sent to unloading or through a heated pipeline into the reactors.

Description

The proposed useful model relates to the field of hydrogenation of substances and can be used for hydrogenation of vegetable (rapeseed) oil, in particular for saturating the oil with hydrogen, improving the dissolution of hydrogen in oil and increasing the mixing rate of vegetable (rapeseed) oil.

Known apparatus for heat exchange and mixing of liquid media (invention SU No. 1773468 A1 publ. 1992.11.07), which solves the problem of increasing productivity by intensifying heat transfer and mixing while reducing material consumption and energy consumption, the mixing device is made in the form of vertical plates rotating together with the shaft, equipped with longitudinal row of nozzles with the arrangement of their outlet cross-section so that the stream of liquid flowing out of the nozzles smoothly flows around the cross-section of the pipe of each loop along the perimeter. The disadvantages of the known device include the complexity of the design, the absence of a stirrer with a magnetic coupling, which significantly impairs the hydrogenation process.

The technical problem of the proposed utility model is to create a widely used device for hydrogenation of vegetable (rapeseed) oil to saturate the oil with hydrogen, improve the dissolution of hydrogen in oil and increase the mixing rate of vegetable (rapeseed) oil.

The technical effect arising from the solution of the task is to more efficiently saturate the oil with hydrogen, improve the dissolution of hydrogen in the oil and increase the mixing speed of vegetable (rapeseed) oil.

In the figure of FIG. 1 shows a diagram of the proposed device.

Fig. 2 shows a device for hydrogenating vegetable oil using a stirrer with a magnetic coupling. View from above.

FIG. 3 - device for hydrogenation of vegetable oil using a stirrer with a magnetic coupling. General form.

Vegetable (rapeseed) oil hydrogenation device consists of the following main elements:

1 - heating and pumping device

2 - filter

3 - stirrer with magnetic coupling

4 - circulation pump

5 - gas cylinder

6 - capacity

7 - vacuum pump

8 - valves

9 - funnel

10 - pipelines

11 - engine

The device works as follows.

The container is evacuated, liquid rapeseed oil is sucked into the container, a stirrer with a magnetic coupling and a vacuum pump are turned on, the oil is heated to 110-120 ° C and circulated by a circulation pump to remove moisture. After the oil has dried, the catalyst is sucked in through a funnel for supplying dry components, the container is purged with argon several times to remove dissolved oxygen. The hydrogen supply is opened to create operating pressure (up to 20 bar), the heater is turned on. The reaction is carried out under temperature control. Primary heating is carried out to 120-140 ° C, then the mixture heats up spontaneously due to the exothermic effect upon absorption of hydrogen. The temperature is controlled within 200 ° C. After the end of the reaction, the hydrogen supply is shut off, the mixture is cooled by supplying a heat carrier (water) to the cooling circuit. Cooling is carried out up to 100-105 ° С. The excess pressure is relieved by venting to atmosphere. The container is evacuated and flushed with argon several times to remove dissolved hydrogen. To precipitate the catalyst, bleaching clay is sucked in through a funnel for supplying dry components, mixing is carried out for 1 hour, then the mixture with a temperature of 90-100 ° C is passed through a filter to remove the spent catalyst and sent to unloading or through a heated pipeline into the reactors.

A device for the hydrogenation of vegetable oil using a mixer with a magnetic coupling, containing a motor, a container, valves, a funnel, pipelines, a mixer, a circulation pump, a vacuum pump, characterized in that a submersible mixer located in the center of the container is connected to an external motor by means of a magnetic coupling. so as not to break the tightness of the device, at the same time the stirring unit has a seal. Unlike agitators with a face seal, traditionally used in this process, this type of submersible mixer does not violate the tightness of the apparatus, which makes it possible to carry out chemical synthesis using more aggressive physical conditions, thereby significantly speeding up the synthesis process.

Claims (1)

A device for the hydrogenation of vegetable oil using a mixer with a magnetic coupling, containing a motor, a container, valves, a funnel, pipelines, a mixer, a circulation pump, a vacuum pump, characterized in that a submersible mixer located in the center of the container is connected to an external motor by means of a magnetic coupling. so as not to break the tightness of the device, at the same time the stirring unit has a seal.

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