RU2504423C2 - Kochetov's circular adsorber - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to adsorption equipment to be used in gas (vapor)-adsorbent system. Besides it relates to circular adsorber including cylindrical housing with elliptical cover and elliptical bottom. Note here that said cover has loading and inspection openings. Note here that loading opening is connected with compensating bin made in said cover. Union for feed of initial mix, drying and cooling air is arranged at housing bottom wherein supports for mounts of outer and inner perforated cylinders are secured. Note also that discharge of used adsorbent is effected via discharge opening made at bottom of housing secured at, at least, three mounts. Vapor and condensate discharge and water feed union, cleaned air and used air discharge unit and steam feed union are arranged at housing bottom. Note that it is connected with manifold with two channels. One said channel accommodates baffle with bubbler for desorption, said bubbler being of toroidal shape over the entire length of perforated cylinders. Union for safety valve is mounted at housing top section. Note also that adsorbent is composed of balls with nonthrough radial grooves. Note that said recess feature cylindrical, conical, spherical or whatever surface of solid of revolution.

EFFECT: better cleaning of target component and dust.

6 dwg

Description

The invention relates to equipment for carrying out adsorption processes in a gas (steam) - adsorbent system.

The closest technical solution to the claimed object is an adsorber containing a housing with a lid and a bottom and an adsorbent layer located between them by a.s. USSR No. 516415, B01D 53/02 of 01/23/74.

A disadvantage of the known adsorber is that it does not provide a high degree of purification of the gas stream from the target component and dust.

The technical result is an increase in the degree of purification of the gas stream from the target component by increasing the contact area of the adsorbent with the target component.

This is achieved by the fact that in an annular adsorber containing a cylindrical body with a lid and a bottom made of elliptical shape, moreover, loading and inspection hatches are mounted in the lid, moreover, the loading hatch is connected to the hopper-compensator located in the lid, and the fitting for supplying the initial mixture drying and cooling air is located in the lower part of the housing, in which the supports for the base are fixed under the external and internal perforated cylinders, and the spent adsorbent is unloaded through the unloading a hatch mounted in the lower part of the housing, which is fixed in at least three mounting legs, and a fitting for venting vapors and condensate during desorption and for supplying water is located in the bottom, in which a fitting for securing the purified gas and exhaust air is fixed, and for supplying water vapor, moreover, it is fixed through a manifold having two channels, moreover, in one of which there is a shutter for the desorption process, with a bubbler, the bubbler is made toroidal in shape over the entire height of the perforated cylinders, and the nozzle for a storage valve is installed in the upper part of the housing, and the adsorption and desorption process proceeds at the following optimal ratios of the components making up the apparatus: the perforation coefficient of the toroidal surface of the bubbler lies in the optimal range of values: K = 0.5 ... 0.9; the ratio of the height H of the cylindrical part of the housing to its diameter D is in the optimal ratio of values: H / D = 2.0 ... 2.5; the ratio of the height H of the cylindrical part of the body to the thickness S of its wall is in the optimal ratio of values: H / S = 580 ... 875, while the adsorbent is made in the form of balls, as well as solid or hollow cylinders, grains of an arbitrary surface obtained in the process manufacturing, as well as in the form of short segments of thin-walled tubes or rings of equal size in height and diameter: 8, 12, 25 mm.

Figure 1 shows the adsorber, a frontal section, figure 2 - section aa of figure 1, figure 3 - adsorbent made in the form of hollow balls, on the spherical surface of which a helical groove is cut, figure 4 - adsorbent made in the form of cylindrical rings, on the side surface of which a helical groove is cut, in FIG. 5 is a section BB-4 of FIG. 4, where a helical groove is cut, having in cross section perpendicular to the helical line a profile of the “Berl saddle” or saddle type Itallox ", in Fig.6 is an adsorbent made spherical in shape.

The annular adsorber comprises a cylindrical body 4 with a cover 7 and an elliptical bottom 15. In the lid 7, a loading hatch 9, an inspection hatch 8. are mounted. The loading hatch 9 is connected to a hopper-compensator 10 located in the cover 7.

The fitting 2 for supplying the initial mixture, drying and cooling air is located in the lower part of the housing 4, in which the supports 3 for the base 13 are fixed under the outer 5 and inner 6 perforated cylinders. The spent adsorbent 12 is discharged through an unloading hatch 14 installed in the lower part of the housing 4, which is fixed in at least three mounting legs 1. A fitting 17 for removing vapors and condensate during desorption and for supplying water is located in the bottom 15, in which the fitting 16 is fixed for the removal of purified gas and exhaust air and for supplying water vapor. The fitting 16 is fixed through a manifold having two channels, one of which has a shutter for the desorption process, with a bubbler (not shown in the drawing) made in a toroidal shape over the entire height of the perforated cylinders 5 and 6. The fitting 11 for the safety valve is installed in the upper body parts 4.

The process of adsorption and desorption occurs with the following optimal ratios of the components making up the apparatus: the perforation coefficient of the toroidal surface of the bubbler lies in the optimal range of values: K = 0.5 ... 0.9; the ratio of the height H of the cylindrical part of the housing to its diameter D is in the optimal ratio of values: H / D = 2.0 ... 2.5; the ratio of the height H of the cylindrical part of the body to the thickness S of its wall is in the optimal ratio of values: H / S = 580 ... 875.

The adsorbent 12 is made in the form of balls, as well as solid or hollow cylinders, grains of an arbitrary surface obtained during its manufacture, as well as short segments of thin-walled tubes or rings of equal size in height and diameter: 8, 12.25 mm.

To increase the degree of purification of the gas stream from the target component by increasing the contact area of the adsorbent with the target component, the adsorbent can be made in the form of hollow balls, on the spherical surface of which a helical groove is cut (Fig. 3), or in the form of hollow balls, a spherical surface of which a helical groove is cut, having in cross section perpendicular to the helical line a profile of the “Berl saddle” or “Itallox” saddle type (Fig. 5). The adsorbent 12 can be made in the form of cylindrical rings, on the side surface of which a helical groove is cut (Fig. 4). The adsorbent 12 can be made in the form of cylindrical rings, on the side surface of which a helical groove is cut, having in cross section perpendicular to the helical line a profile of the Berl saddle or Itallox saddle (Fig. 5). The adsorbent 12 can be made in the form of toroidal rings (not shown in the drawing). The adsorbent 12 can be made in the form of toroidal rings having a profile such as a “Berl saddle” or a Itallox saddle (not shown in the drawing).

To increase the degree of purification of the gas stream from the target component by increasing the contact area of the adsorbent with the target component, the adsorbent is spherical in shape (Fig. 6), in which non-through radial recesses are made, the recesses being in the form of a cylindrical, conical, spherical surface or any surface of bodies rotation, for example a paraboloid, an ellipsoid.

Ring adsorber works as follows.

The gas (steam) stream for cleaning is supplied to the lower part of the apparatus through the nozzle 2 for supplying the initial mixture through a distribution grid (not shown in the drawing). The purified gas stream is discharged from the adsorber through the nozzle 16. The adsorbent 12 is loaded through the loading hatch 9, and the spent adsorbent 12 is removed through the discharge hatch 14. Desorption is carried out by supplying water vapor through the nozzle 16 to a bubbler having a perforated toroidal surface for a more uniform desorption process over the entire height of the perforated cylinders 5 and 6. The fitting 17 is provided for venting during desorption, and a safety valve for trouble-free leakage is installed in the fitting 11 ia process. As an adsorbent, activated carbons of the BAU, AR-A, SKT-3 and other brands can be used.

The proposed device can significantly increase the degree of purification of the gas stream from the target component and can also be used in recovery plants with a capacity of more than 30,000 m ³ / h.

Claims (1)

An annular adsorber containing a cylindrical body with a lid and a bottom made of elliptical shape, moreover, loading and inspection hatches are mounted in the lid, the loading hatch being connected to the hopper-compensator located in the lid, and the nozzle for supplying the initial mixture, drying and cooling air is located in the lower part of the housing, in which the supports for the base are fixed under the external and internal perforated cylinders, and the spent adsorbent is unloaded through the discharge hatch installed in part of the housing, which is fixed in at least three mounting legs, and a fitting for venting vapors and condensate during desorption and for supplying water is located in the bottom, in which a fitting is mounted for venting purified gas and exhaust air and for supplying water vapor, moreover, it is fixed through a manifold having two channels, moreover, in one of which there is a shutter for the desorption process, with a bubbler, the bubbler is made of a toroidal shape over the entire height of the perforated cylinders, and the fitting for the safety valve novel in the upper part of the housing, characterized in that the adsorbent is made spherical in shape, through which radial recesses are made, the recesses being in the form of cylindrical, conical, spherical surfaces or any surface of bodies of revolution.

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