RU30288U1 - REACTOR FOR CATALYTIC PROCESSES - Google Patents

Description

200310-80 1 O

BO1J8 / 00

REACTOR FOR CATALYTIC IROCESSES

The utility model relates to apparatuses for reaction and mass transfer processes, in particular, to catalytic cracking, reforming and hydrotreating reactors for gasoline, diesel fuel, oils and others, and can be used in petrochemical, chemical and other industries.

Known reactor with a stationary catalyst bed with axial movement of the gas-feed mixture. (See, for example, US Pat. France No. 2113249, VOI 9 / 00.1972)

Known reactor has significant hydraulic resistance.

The closest in technical essence is the reactor selected by the applicant for the prototype, comprising a housing with a lid and a bottom, gas supply and exhaust pipes, a perforated pipe mounted in the center of the housing, a blank plate located on top of the perforated pipe, a switchgear in the form of perforated gutters and a catalyst layer located between the housing and perforated troughs (see, for example, Oil Refining Handbook, G. Lastovkin and others L. Chemistry, 1986, pp. 399-400). The known reactor operates according to a radial flow pattern, which reduces the hydraulic resistance of the gas-phase flow. However, a well-known reactor is expensive to manufacture. In places between the gutters, an uneven distribution of flows is observed, as a result of which stagnant zones are formed. The catalyst during operation is compacted, abraded, the height of the catalyst layer decreases, which leads to

formation of a non-working zone and bypass as a result of the arrival of a vapor-gas mixture unreacted with the catalyst in the upper part of the perforated pipe.

The technical problem to which the utility model is aimed is to increase work efficiency by preventing the formation of bypass flows, uniform distribution of the gas-raw material mixture and pressure drop in the reactor, ensuring a high degree of purification with low hydraulic resistance and stabilizing the energy level of the process, simplifying manufacturing and installation .

The solution to the technical problem is achieved by the fact that, a reactor containing a housing with a lid and a bottom, nozzles for introducing a gas and raw material mixture and outputting reaction products, a perforated pipe mounted in the center of the body, a blank plate located on top of the perforated pipe, a switchgear and a catalyst layer, placed between the housing and the switchgear, according to a utility model, the switchgear is made in the form of a perforated shell, while the perforated shell is installed coax in no case at a distance with respect to its walls, connected to the hollow plate and the upper perforated pipe is solid.

Figure 1 shows a longitudinal section of a reactor for catalytic processes.

In FIG. 2 is a section along AA of FIG. 1.

In FIG. 3-node B of FIG. 1

The reactor for catalytic processes comprises a housing 1 with a cover 2 and a bottom 3, nozzles 4,5, respectively, for introducing a gas-raw material mixture and for outputting reaction products, a perforated pipe 6 mounted in the center of the housing, a blank plate 7 located above the perforated pipe, a distribution device 8 made in the form

perforated shell and catalyst layer 9, located between the perforated shell and the perforated pipe. The perforated shell is installed coaxially in the housing at a distance relative to its walls, connected to a blank plate and the upper part of the perforated pipe is solid.

The reactor works as follows:

The gas-vapor mixture flows from above through the inlet pipe into the gap formed between the wall of the housing and the perforated shell, and moves in the radial direction through the catalyst layer to the central perforated pipe. The reaction products are removed from the reactor through the outlet pipe. In order to prevent direct flow of raw materials into the catalyst bed, a perforated shell is connected to a blank plate. The upper part of the perforated pipe is non-perforated (solid), which prevents the formation of bypass flows.

The reactor is efficient in operation, provides a high degree of purification with low hydraulic resistance and simplified installation.

The authors:

Yu.P. Lebedev Applicant-patentee ООППК Кедр-89 General Director

, V.G. Chekmenev I. .. Baklashchov / (

Claims (1)

A reactor for catalytic processes, comprising a housing with a lid and a bottom, nozzles for introducing a gas-raw material mixture and an outlet for reaction products, a perforated pipe mounted in the center of the housing, a blank plate located above the perforated pipe, a distribution device and a catalyst layer located between the distribution device and perforated pipe, characterized in that the switchgear is made in the form of a perforated shell, while the perforated shell is installed coaxially in the housing ce in the region with respect to its walls, connected to the hollow plate and the upper perforated pipe is solid.