SU1194481A1 - Reactor - Google Patents

Abstract

1. A REACTOR that contains a heated housing with body jacks, gaskets, pipes for the introduction of liquid reagents of the product discharge and a gas outlet pipe, which is fixed in the gas valve, characterized in that, in order to increase the efficiency of the catalytic processes in the liquid-solid system, which occur with the gas section, the body and the lid are made of S shaped upward-pointing coaxially mounted cones, while on the side surface of the body there are reinforced ring reaction rings adjacent to each other | ba rectangular cross section, each IE of which is provided with a continuous radial wall, beside which in (A wall of the trough hole vsholneno C with height equal to the height of the wall.

Description

2, the reactor according to claim 1, characterized in that the gas outlet nozzle is fixed at the top of the lid and is made in the form of a Venturi tube.

3. Reactor on PP. 1 and 2, characterized in that

lateral PO1 The surface of the Kirsch is reinforced, facing downwards, similar to the body of a gutter without openings, while the gutters of the body and the lid are located opposite one another with a gap between the opposite walls.

This invention relates to chemical reactor designs and can be used in chemical, petrochemical and other industries to conduct catalytic processes in a liquid-solid system, with intense evolution of gases, especially reactive, in particular for dealkylation of 2,6-di tert-butyl-4-methylphenol (ionol) to 6-tert-butyl-4-methylphenol intermediate in the production of antioxidant Agidol-2.

The purpose of the invention is to increase the efficiency of the catalytic processes in the liquid-solid system, proceeding with an interactive gassing;

Figure 1 shows the proposed reactor, a longitudinal section; in fig. 2 and 3 — body, top view, and possible schemes for organizing the flow of the liquid phase; in fig. 4 - a reactor with a raised headpiece, general view.

The reactor consists of a body 1 with a lid 2, equipped with thermal shirts 3 and 4. The body and the lid are designed as upward-pointing cones that are installed coaxially one to another.

On the side surface of the case, adjacent annular reaction chutes 5 of rectangular section with walls 6 are reinforced, between which is applied (or a layer of solid catalyst is covered. The troughs are arranged concentrically in different horizontal planes so that the walls are arranged vertically.

Each chute 5 is provided with a solid radial partition 7, near

wherein in the wall 6 there is an opening 8 for the flow of the liquid phase from the outlying groove to the lower one, the height of the opening being equal to the height of the wall. In the case of the presence of a poured layer of catalyst holes can be provided with nets.

On the side, the Krshki surface is reinforced similar to the hull (of the same size and shape of the chute 9 without partitions and openings, however, facing the walls 10 downwards. At the same time the chutes 9 of the shank are placed against the grooves 5 of the same radius of the hull, and between all the opposite walls 6 and 10 there is over the entire length of the gap.

At the apex of Krsh1 there is fixed a gas outlet pipe 11 shaped as a Venturi tube, which is connected to a funnel-shaped channel for the passage of gas, formed by the combination of all the gaps between the walls

6 and 10.

The reactor is also equipped with a nozzle 12 DL. input liquid reagents, which is located above the upper chute 5 near the partition from the side,

where there is no hole; pipe 13

The output of liquid products, which is fixed in the hole of the lower chute 5 and the nozzles for the entry and exit of coolants 14-17.

The reactor operates as follows.

Liquid reagent, for example, molten ionol, is fed through pipe 12 into the upper reaction chute. 5, distributed over its entire length, dealkylated to the solid catalyst layer, flows through the opening 3 8 into the underlying chute, etc., and then output through pipe 13. There are two possible organization schemes for the flow of the liquid phase in the grooves 5: in opposite directions to the neighboring grooves and in the same direction. In the first case, this is achieved by separating with one continuous radial partition 7 of all the grooves, the openings 8 of which are located on opposite sides of the partition, in the second - by displacing one side of the partition of each groove by the width of the opening. The advantage of the second scheme is lower head loss. At the same time, the liquid level across the widths of not all the channels 5 is the same, since the bottom of the channels is horizontal, which ensures the same conditions for the evolution of gas and the operation of catalyst particles over the layer width. The presence of holes 8 located at different levels, whose height is equal to the height of walls 6, prevents flooding of the flow and provides a film mode for the liquid phase to flow through the solid catalyst layer, which contributes to the intensive degassing of the reaction mixture due to the slight hydrostatic pressure. Chutes 9 covers located opposite chutes 5 of the housing increase the efficiency of the reactor by improving the vapor phase displacement mode (evaporation, for example, during ionol dealkylation, is significant, since operating temperature 81 is equal to 140-160 ° C). The horizontal position of the bottom of the gullets of Krishka is explained in particular by the fact that in the event of possible condensation of the vapors of the reagents and subsequent drop formation, the separation of the drops occurs in their gutters. In this case, the entire evaporation surface is isolated (vertically) from direct contact with the external-. The vaporous products that are removed together with the gas are condensed in the gas outlet pipe 11 equipped with a coolant jacket (not shown), and the condensate enters the first upper chute 5, since the pipe 11 is located above the top of the housing coaxially. The evolved gas passes through the walls of the mezvdu walls 6 and 10 of the chutes of the casing and the lid, enters the exhaust gas outlet 11 and is removed from the reactor. The implementation of the body with the Kirsch in the form of coaxial cones, directed with their vertices upward, allows creating optimal conditions for gas removal due to the minimum input path (at a given head height and angle of taper) of the entire gas volume through a single pipe, and the residence time in the upper gutters) the smallest. At the same time, the pressure losses are relatively small, since on average, the angles of rotation of the flow are less than 90, and the gas outlet pipe is made in the form of a Venturi tube.

Phage. 2

eight

FIG. 3

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Claims (3)

No. 1011233, class In 01 J 19/18, 1983. ₍ 1. REACTOR, containing a housing equipped with heating jackets, a cover, liquid inlet pipes _{for the} output of reagents _{from the} product outlet and a gas outlet pipe fixed in the cover, characterized in that, in order to increase the efficiency of carrying out catalytic processes in liquid-solid system, flowing with intense gas separation, the body and the cover are made δ in the form of coaxially mounted cones directed with their vertices pointing upwards, while the reaction rings adjacent to one another are fixed on the side surface of the body> eloba rectangular section, each of the _β kotoryh.snabzhen continuous radial-9 hydrochloric partition wall near a chute which has an opening, | w with a height equal to the height ζ © stenki.IF Fig. { 2, The reactor according to π. 1, characterized in that the gas outlet pipe is fixed at the top of the lid and is made in the form of a venturi. 3. The reactor according to paragraphs. 1 and 2, characterized in that on the side surface of the lid there are fixed downward facing walls similar to the body of the gutter without openings, while the gutters of the body and the lid are located one against the other with a gap between the opposite walls.