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 
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.
FIELD: oil production; trapping hydrocarbons in slow coking plants.
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.
SUBSTANCE: the invention is pertaining to the field of petroleum refining industry and is aimed at improvement of operation of installation of petroleum residue coking retarding. The method includes a preliminary heating of the original crude, its mixture with a recirculator - a heavy gas-oil of a coking with production of a secondary raw material and heating it up to the temperature of coking in the reactor with formation of a coke and distillate products of coking and preparation of the reactor. In case of failure of one of the reactors the thermal formation of the secondary raw material is cooled and is directed for separation into the rectifying tower, while in the operating reactor they conduct preparation and the following cycle of a coking is exercised in the same reactor. The invention allows by recovery of the process of coking to raise its efficiency.
EFFECT: the invention allows upgrade the coking process efficiency.
2 cl, 1 dwg, 1 tbl
FIELD: petroleum processing.
SUBSTANCE: invention relates to technology of processing heavy petroleum residues, in particular to coking process, which can be used in delayed coking plants. Processing of sulfur-containing raw material in delayed coking plants comprises preheating raw material and treating it with supplied hydrogen, said raw material being heavy petroleum residues or petrochemical by-products. Coking process is carried out in one step in presence of hydrogen supplied in quality 10 to 200 m3 per 1 m3 raw material.
EFFECT: increased yield of liquid products, reduced sulfur level in products, and reduced material and power consumption.
2 cl, 2 tbl
FIELD: oil refining processes; warming-up retarded coking reactors.
SUBSTANCE: proposed method of warming-up empty reactor includes delivery of primary cooling product removed from reactor being cooled at initial stage of cooling the coke with water followed by delivery of distillate vapor from operating reactor. Then, hydrocarbon condensate is discharged to warming-up reservoir and vapor phase from this reservoir is discharged to purse reservoir or to rectifying column. Liquid phase is pumped-out to substandard petroleum product line. It is good practice to perform initial stage of cooling the coke with water for 1-2 h. Vapor flow from reactor being cooled is fed in the downward direction to reactor to be warmed-up.
EFFECT: reduced power requirements due to avoidance of use of water vapor; reduced toxic effluents.
3 cl, 2 ex
FIELD: petroleum processing and petrochemistry.
SUBSTANCE: process comprises: heating petroleum feedstock; coking it in coking chamber while simultaneously withdrawing vapor-gas products and separating them on rectification column; cooling and separating resulting gas-liquid mixture into gas, gasoline, and water; draining water condensate; mixing gasoline with gas followed by separating them; and performing processing to produce coking gas and coking gasoline. Mixing of gas and gasoline is conducted in gas-liquid contactor by tangentially feeding stream of compressed gas preliminarily purified of liquid drop phase into injector-atomized gasoline. Gasoline-atomization injector is constructed in the form of perforated tube provided with bumper disk and mounted along axis of gas-liquid contactor.
EFFECT: increased yield of coking gasoline and improved quality of coking gasoline.
2 dwg, 3 tbl
FIELD: oil-processing industry; methods of trapping of ejections of foul gases from rectors of a carbonization.
SUBSTANCE: the invention is pertaining to the field of the oil-processing industry and may be used at trapping the harmful gases ejections from the reactors of carbonization. The method provides for the preliminary separation of the products of the heating-up of the reactors, the coke steaming and cooling in the additional rectifying column with extraction of the intermediate fractions guided into the basic rectifying column, the water condensate and the gas. At that for separation into the additional rectifying column they feed the products of the heating-up with the flow temperature below 240°С and the products of the steaming and cooling with the flow temperature of 150-240°С, and as the intermediate fractions gate out the low quality fractions at -180°С, 110-180°С and +180°С. The products with the flow temperature of above 240°С may be guided directly to the basic rectifying column, and the products with the flow temperature below 150°С - in the separator. It is preferable to conduct separation in the separator at the temperature of 80-140°С and duration of 1-3 hours. The method allows to raise the quality of separations of the trapped harmful ejections, in particular, to reduce the share of petroleum in the water condensate and to decrease the petroleum products losses and to increase efficiency of the process of trapping, as well as improve the ecological indexes of the process of the retard carbonization.
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.
SUBSTANCE: invention aims at simultaneously producing petroleum coke with low and high contents of volatiles, which coke, after calcination, can be used to manufacture anodes or graphitized products. Process of producing petroleum coke through retarded coking of petroleum residues comprises supplying feedstock to coke chamber at 475-485°C, coking during 14 to 36 h, discharging resulting coke by drilling central well in the coke bulk and cutting coke of the top part of chamber until it is completely emptied at a depth 4-5 m, discharged coke is removed from under the chamber and after that cutting of coke is continued in the lower part of chamber until it is also completely emptied. Thereafter, coke discharged from the top part of chamber and coke discharged from the lower part of chamber are stored separately. The former contains at least 15% volatiles and is used as substitute of sintering and thinning components in coal coking charge in blast furnace coke production and the latter contains no more than 11% volatiles.
EFFECT: enabled simultaneous production of volatiles-rich and low-volatile cokes.
FIELD: .oil industry
SUBSTANCE: method comprises preliminary heating of initial raw material, mixing it with the carbonization gas oil, supplying the mixture to the intermediate tank, heating the raw material up to the temperature of carbonization, and carbonizing it in the carbonization chamber to produce carbon and carbonization distiller. The distiller is supplied to the bottom section of the rectification tower in which it is separated into gas, gasoline, and light and cubic carbonization gas oils. The other heated hydrocarbon raw material is additionally supplied to the bottom section of the rectification tower. The concentration of sulfur in the material is higher than that in the initial raw material . The cubic gas from the rectification tower is carbonized by a known method to produce coke and distiller which is supplied to the bottom section of the rectification tower. The initial raw material can be mixed with the light or heavy carbonization gas oil.
EFFECT: simplified method.
2 cl, 2 tbl, 7 ex
FIELD: petroleum processing.
SUBSTANCE: invention relates to apparatuses for isolation of hydrocarbon fractions of liquid fuel and coke from straight-run goudron and acid sludges, aged mazuts, oil slimes, and can be used to utilize indicated wastes. Reactor for isolation of hydrocarbon fractions of liquid fuel and coke from subquality coking products and petroleum processing wastes comprises upright cylindrical body 1 with plane bottom 2 provided with external heater 3 having central opening 21 with connecting pipe 22; feedstock receiver 5 secured to drive shaft 4; perforated sparkling tube 6 rigidly connected to feedstock receiver 5; and knife 7 mounted on shaft 4 before sparkling tube in the direction of rotation of shaft 4 and in parallel to bottom 2 and tube 5. Perforations of sparkling tube 6 are made in the form of through grooves 11 along cylindrical surface of tube 6 and are positioned over plane gutter 12. Sparkling tube 6 bears rod 13 for longitudinal displacement. Rod 13 supports scrappers 16. Body 1 accommodates direct (9) and back (10) pushers of rod 13. Feedstock receiver 5 and sparkling tube 6 are provided with screens 24 and 25. Cutting edge of knife 7 is made in the form of equal-sided corner prominences. Hub 19 with radial inclined blades 20 is attached to lower part of shaft 4 and connecting pipe 22 is provided with radial counterblades.
EFFECT: prolonged duration of continuous operation of reactor and increased productivity.
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