The reactor for the production of petroleum coke

 

(57) Abstract:

Usage: in the field of oil refining to obtain petroleum coke, delayed coking units. The invention, in the reactor for the production of petroleum coke containing cylindrical body, the upper and lower neck with socket for input of raw material and withdrawal of gas, bottom, installed in the lower part of the housing means for tightening the flow of raw material, made in the form located axially of the spray Cup associated tangential nozzles placed on the neck of the socket for input raw materials, the bottom plate is made elliptical, and linking spray the glass with fittings for raw inlet pipes are located along the bottom of the spiral to increase the reliability of the reactor. 3 Il.

The invention relates to the field of oil refining, in particular, to equipment for production of petroleum coke by delayed coking units.

Known reactor containing cylindrical body with a bottom, equipped with openings with lids. In the lower neck radially mounted socket for input raw materials. In the upper neck has a socket for the output products of coking is aetsa inability to obtain coke of uniform quality and low reliability, due to uneven temperature field, constantly changing in time and reactor volume.

Closest to the claimed object effect is achieved is a reactor containing cylindrical body with upper and lower openings with lids and a device for tightening the flow of raw material, made in the form of straight channels in the lid bottom neck, the input ends of which are connected to the fittings of input materials and output tangentially with an axially mounted spray glass [2]

The input of raw materials to the reactor through the channels connected to an axially mounted spray glass provides axisymmetric distribution of the flow of raw materials and a more uniform temperature distribution in katsoudas weight, reducing thermal stresses in the body and increase the reliability of the reactor. However, the disadvantage of this reactor is the warping of the lid bottom neck, caused by uneven temperature distribution in the housing cover. Due to the fact that in the diametrical cross section perpendicular to the cross section of the raw inlet temperature of the cover is lower than in cross-section, which serves raw materials, there is a deformation of the housing cover is S="ptx2">

The aim of the invention is to improve the reliability of operation of the reactor.

This objective is achieved in that in the reactor for the production of petroleum coke containing cylindrical body, the upper and lower neck with socket for input of raw material and withdrawal of gas, bottom, installed in the lower part of the housing means for tightening the flow of raw material, made in the form located axially of the spray Cup associated tangential nozzles placed on the neck of the socket for input raw materials, the bottom plate is made elliptical, and linking spray the glass with fittings for raw inlet pipes are located along the bottom of the spiral.

Perform bottom plate elliptic increases its rigidity, resulting in reduced deformation of the housing cover on the perimeter when the occurrence of thermal stresses, which increases the reliability of the reactor. Location linking spray the glass with fittings for raw inlet nozzles along the bottom in a spiral promotes uniform temperature distribution in the housing cover. This helps to reduce thermal strains and, therefore, increase the reliability of the reactor.

Fig is a of Fig. 1), and Fig. 3 (a section along B-B in Fig. 2).

Reactor for coking heavy petroleum residues includes a housing 1 with the top 2 and bottom 3 bottoms with openings 4 and 5 with lids 6 and 7. At the bottom of the neck 5 are mounted radially fittings raw inlet 8. The cover 7 of the lower cap 5 is made elliptical. The fittings of the raw inlet 8 connected to the pipe 9, is made in the form of a spiral of Archimedes, logarithmic, etc). The output ends of the pipe tangentially connected with the spray Cup 10, an axially mounted. On top of the pipes 9 are closed by a plate 11, having on the periphery of the cover 7 holes 12 for input connections of the lower ends of the nozzles 8. For output vapor-gas products of the coking process in the neck 4 of the upper plate 2 has a nozzle 13.

The reactor operates as follows.

The heated raw material coking served in the fittings 8 and further through the holes 12 in the plate 11 in the pipe 9, is made in the form of a spiral. The pipes 9 raw materials fed into the Cup 10 and the nozzles 9 raw materials fed into the Cup 10 and is twisted around the vertical axis of the reactor. When this raw material is separated into liquid and gaseous phases. Liquid accumulates in the reactor, and the gas is removed through pipe 13 of the upper heads of Chora by reducing thermal deformation of the bottom cover of the reactor.

The reactor for the production of petroleum coke containing cylindrical body, the upper and lower neck with socket for input of raw material and withdrawal of gas, bottom, installed in the lower part of the housing means for tightening the flow of raw material, made in the form located axially of the spray Cup associated tangential nozzles placed on the neck of the socket for input raw material, characterized in that, to improve the reliability of the reactor, the lower hull is made elliptical, and linking spray the glass with fittings for raw inlet pipes are located along the bottom of the spiral.

 

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SUBSTANCE: proposed plant includes reservoir for receiving the products heating the coking reactors with piping system equipped with pumps discharging non-conditioned oil products and pipe lines discharging gas for rectification or sprinkling into scrubber for steaming and cooling the coke at discharge of gas into atmosphere and drainage of water condensate into disposal system through hydraulic seal; hydraulic seal is connected via vibrating sieve with near-reactor coke accumulator combined with gravity filter; above-sieve part of vibrating sieve is connected with near-reactor coke accumulator and under-sieve part is connected via gravity filter with deepened circulating water reservoir or with disposal system. Proposed plant makes it possible to return some components of water condensate and cool coke at simultaneous discharge of them to disposal system.

EFFECT: improved quality of separation of steaming products.

3 cl, 1 dwg

FIELD: petroleum refining industry; petroleum residue coking retarding method.

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EFFECT: the invention allows upgrade the coking process efficiency.

2 cl, 1 dwg, 1 tbl

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2 cl, 2 tbl

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EFFECT: reduced power requirements due to avoidance of use of water vapor; reduced toxic effluents.

3 cl, 2 ex

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EFFECT: increased yield of coking gasoline and improved quality of coking gasoline.

2 dwg, 3 tbl

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EFFECT: the invention ensures the improved quality of separation of the trapped harmful ejections, reduction of the share of petroleum in the water condensate, the decrease of the petroleum products losses, the increased efficiency of the process of trapping, the improved ecological indexes of the process of the retard carbonization.

8 cl, 1 ex, 1 tbl, 1 dwg

FIELD: petroleum processing.

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EFFECT: enabled simultaneous production of volatiles-rich and low-volatile cokes.

1 tbl

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EFFECT: simplified method.

2 cl, 2 tbl, 7 ex

FIELD: petroleum processing.

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EFFECT: prolonged duration of continuous operation of reactor and increased productivity.

3 dwg

FIELD: petroleum processing.

SUBSTANCE: method according to invention determines pressure gradients at exit and entrance in each section of the furnace and real gradient is compared to projected gradient, after which, depending on disagreement value, this value is diminished via variation of fuel consumption in corresponding furnace burner. Projected gradient is calculated using formula: ΔPi=k(L1+b)n, wherein ΔPi is pressure gradient in i-th section of coil, %; k, b, n are coefficients depending on conversion value, nature of raw material, and projected quality of final thermal destruction products; and L1 reduced length of coil from its beginning to i-th measurement point, %.

EFFECT: decreased coking of furnace coil and increased operation cycle of plant, which incorporates the furnace.

3 cl, 3 tbl

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