Plant for trapping hydrocarbons from coking reactors

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

 

The invention relates to the refining industry, in particular to the equipment system condensation and separation of gaseous and liquid products of coking.

Known installation recovery of hydrocarbons from the reactor coking containing scrubber is connected by a piping system with water supply irrigation products formed during heating, steaming and cooling of coke with the withdrawal of gas into the atmosphere and discharge of condensate drains. (Valyavin,, Vetoshkin NI, Musin I.G. Analysis diagrams capture products released during the heating chambers, the steam and the cooling of coke, and development of measures to reduce emissions into the environment JSC “Novo-Ufimsky oil refinery”. Refining and petrochemicals, 1998, No. 9, p.72).

The disadvantage of this setup is a significant discharge of liquid petroleum products and coke particles in the sewage system.

The closest in technical essence and the achieved result to the declared object is to install recovery of hydrocarbons from the reactor coking containing capacity of taking the products of the heating of the reactor and scrubber for receiving vapors steaming and cooling coke, connected by a piping system with water supply, irrigation, food, heating, steaming and cooling of coke, the pump pumping the oil warms up, the output of the gas in the atmosphere and if the Ohm condensate drains. (Valyavin,, Sedov PS, Soloviev A. M., Onagawa ACH Reduce losses of petroleum products

and reduction of environmental pollution on plants delayed coking unit. M: Tsniiteneftehim, 1982, p.14-15).

The disadvantage of this setup is also a significant discharge of liquid petroleum products and coke particles in the sewage system, resulting in poor operation of its pipeline system and the loss of the components of the water of condensation products steaming and cooling of coke.

The present invention is a return of part of the components of the water of condensation products steaming and cooling coke for own needs of the delayed coking unit with a simultaneous reduction in their discharge into the sewer.

The technical result is the improvement of the quality of separation of the products steaming and cooling of coke.

This technical result is achieved by the fact that the installation of the recovery of hydrocarbons from the reactor coking, including the capacity of taking the products of the heating of the reactor coking piping system, pumps pumping nonconforming oil and pipeline gas output rectification or for irrigation water in the scrubber for vapor steaming and cooling of coke with the withdrawal of gas through a pipeline into the atmosphere and discharge of water of condensation through gidravlicheskiy the second stopper in the drain, last through vibrating sieve is connected to on-site storage of coke, combined with the filter sump, with oversize part connected with on-site storage of coke, and undersize through the strainer with underground tank circulating water waterjet coke or sewer drain.

Suitable undersize portion of the vibrating sieves to connect the pipeline system with pumps through shelf lagoon Sewerage, pipelines substandard oil, recycled water irrigation and waterjet and on-site storage of coke, combined with the filter sump.

It is also advisable to connect a buried tank circulating water waterjet with shelf sedimentation.

On the accompanying drawing shows the proposed installation of the recovery of hydrocarbons from the reactor coking.

Installing the recovery of hydrocarbons from the reactor coking has a reservoir 1 for taking the products of the heating of the reactor is connected through the pump 2 to the pipeline (the pipeline on the drawing is not marked) non-oil delayed coking unit, scrubber 3 for receiving vapors steaming and cooling of coke with hydraulic gate 4 is connected through a vibrating sieve with 5 on-site storage of coke b, combined with the filter otst what inicom 7. Oversize part vibrating sieve 5 is connected to on-site storage of coke 6, and undersize through the strainer 7 and the pit 8 underground tank 9 circulating water waterjet, or through the pump 10 with shelf sedimentation tank 11 or sewage. Underground storage tank 9 by the pump 12 is connected to the shelf sump 11. Shelf sedimentation tank 11 through the pumps 13, 14, 15 respectively connected to the on-site storage of coke 6,pipelines nonconforming product and recycled water waterjet or irrigation. For regulating the liquid level in shelf sedimentation tank 11 when it is a gravity discharge to the Sewerage system is the hydraulic shutter 16.

The proposed installation of the recovery of hydrocarbons from the reactor coking works as follows.

A pair of steaming and cooling of the coke from the coking reactors come in scrubber 3, at the same time there water irrigation. The resulting gas is discharged into the atmosphere, and the condensate by gravity through the water seal 4 is fed to a vibrating sieve 5. Vibration sieve 5 condensation products steaming is divided into coke breeze (oversize part),which is bypassed in cooling the drive coke 6, whence it is shipped to the commercial product and water condensate (undersize part), which enters through the strainer 7 in taglu the Lenna tank 9 circulating water waterjet or sewage system. In the filter sump 7 water condensate passing through a stationary filter layers of coke, is cleaned of the residual coke breeze and oil together with circulating water waterjet comes through the sump 8 in underground tank 9 circulating water waterjet. Cleaning of the bottom of the scrubber 3 from water condensation products steaming and cooling of coke produced by the feed pump 10 to the vibrating sieve 5.

It is advisable to return the oil phase from the aqueous condensate products steaming underflow with vibrating sieves 5 through the pump 10 to send a shelf in the sump 11. Petroleum phase of shelf sedimentation tank 11 by the pump 14 is shown in substandard oil delayed coking unit, purified water pump 15 is supplied as a flow in pipelines recycled water irrigation or waterjet coke and coke slurry pump 13 is periodically discharged into on-site storage of coke 6, combined with the filter tank 7. When a gravity mode shelf sedimentation tank 11 purified water through the water seal 16 is discharged into the sewer.

It is advisable to connect the flush tank 9 through the pump 12 with shelving sump 11 for purification of circulating water waterjet from coke mist.

Thus, the proposed structural design is their installation recovery of hydrocarbons from the reactor coking will allow you to select and use a separate product components are steaming and cooling coke for own needs of a delayed coking unit, and as a consequence, reduce their discharge into the sewer.

1. Installing the recovery of hydrocarbons from the reactor coking, including the capacity of taking the products of the heating of the reactor coking piping system, pumps pumping nonconforming oil and pipeline gas output rectification or for irrigation water in the scrubber for vapor steaming and cooling of coke with the withdrawal of gas through a pipeline into the atmosphere and discharge of water of condensation through the water seal in the drain, characterized in that the hydraulic bolt through vibrating sieve is connected to on-site storage of coke, combined with the filter-tank, while the oversize portion of the vibrating sieve is connected to on-site storage of coke, and undersize through the strainer with recessed the tank circulating water waterjet coke or sewage.

2. Installing the recovery of hydrocarbons from the reactor coking unit according to claim 1, characterized in that the undersize portion of the vibrating sieve is connected pipeline system with pumps through shelf lagoon Sewerage, pipelines substandard oil, recycled water irrigation and waterjet and on-site storage of coke, combined with the filter sump.

3. Installing the recovery of hydrocarbons from the reactor to the consideration according to claim 1, characterized in that the buried tank circulating water waterjet connected with shelf sedimentation.



 

Same patents:

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FIELD: heat-power engineering; cleaning flue gases from toxic admixtures.

SUBSTANCE: proposed method includes cooling of flue gases to temperature below dew point, condensation of water vapor, mixing of cooled flue gases with ozone-and-air mixture, oxidation and absorption of nitrogen oxides and sulfur oxides by condensate thus obtained and discharge of cleaned flue gases and condensate from zone of treatment. Flue gases and acid condensate are cleaned from carbon dioxide in perforated units of cassettes coated with layer of slaked lime [Ca(OH02] for forming calcium nitrite [Ca(NO3)], calcium carbonate (CaCO3) and calcium nitrate [Ca(NO3)]. Device proposed for realization of this method includes zone of treatment in form of box with heat-exchange and absorption-and-heat exchange sections located in this box in way of motion of flue gases. These sections are provided with air and flue gas inlet and outlet branch pipes where heat exchangers-air preheaters of 1st and 2nd stages, horizontal and vertical perforated cassettes units made from rough corrosion-resistant material coated with layer of slaked lime [Ca(OH2)], mixing chamber with perforated distributing tube and air duct with ozonizer are located.

EFFECT: enhanced ecological and economical efficiency and reliability.

3 cl, 1 dwg

FIELD: petrochemical and chemical industry; purification of gas mixtures from carbon dioxide.

SUBSTANCE: the invention is pertaining to the field of purification of gas mixtures from carbon dioxide. Absorption is conducted using wipers with resistance by a gas of no more than 50 kPa. At that a solution of ethanolamine in the process of the absorption at least once is subjected to intercooling to 30-35°C. Fine regeneration of a stream of a solution of ethanolamine is realized by its treatment with machining by a live steam. The absorber is made with packet-type nozzles and contains in its middle part at least one contour of cooling made in the form of a device of withdrawal of a partially saturated solution of the absorbent cyclically linked with an intermediate container and an intermediate cooler. A hot-water boiler of the regenerator-recuperator is made in the form of the sections in series located in its lower part. The sections are consisting of heat exchangers placed on plates. At that the number of the sections of the hot-water boiler is chosen within the limits from three to six. In the double-flow circuit the outlet of the roughly regenerated absorbent is made in the form of an outlet of the blank plate located under the hot-water boiler. The regenerator-recuperator in its lower part above an outlet of the finely regenerated absorbent is supplied with an inlet of the steam feeding and with three or four steaming plates located above it. The invention allows to reduce an over-all excessive pressure of the process of purification of gas mixtures from carbon dioxide and its partial pressure, to reduce specific power inputs for purification and also to expand the field of application of the ethanolamine purification.

EFFECT: the invention allows to reduce the over-all excessive and partial pressure of the process of gas mixtures purification from carbon dioxide and to expand the field of the ethanolamine purification application.

12 cl, 7 ex, 3 dwg

FIELD: chemical refining of waste gasses.

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EFFECT: the invention ensures increased completeness and speed of interaction of the components due to use of energy of the purified stream of the waste gasses.

3 cl

FIELD: waste treatment.

SUBSTANCE: invention relates to processing of toxic industrial wastes, more specifically to the process of detoxification of plant-protection chemicals with exceeded storage time or prohibited to use. Utilization of combustion gases consists in passing them through a bed of inorganic metal compound melt disposed in reactor in presence of gaseous oxidant, said inorganic metal compound being a mixture of alkali hydroxides. Gaseous oxidant preliminarily used in excess of at least 3 vol % on the total volume of emission gases is sent to the melt together with emission gases. The latter are introduced from below in such a manner as to assure their contact time with melt at least 2 sec, whereas bed of melt is extended to 0.5-0.8 reactor height.

EFFECT: achieved fullness in trapping toxic components and improved environmental condition.

FIELD: petroleum and gas and other industries; glycol regeneration installations.

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4 cl, 2 tbl, 5 ex

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1 dwg, 5 ex

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2 dwg, 6 tbl, 2 ex

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SUBSTANCE: invention is intended for fine purification of gases with removal of carbon dioxide at elevated pressures, in particular in hydrogen or ammonia production processes. Absorbent is an aqueous solution containing N-methyldiethanolamine, piperazine, potassium carbonate, and morpholine. Invention achieves reduced equilibrium pressure and increased carbon dioxide absorption at low degrees of carbonization (as low as 0.1 mole CO2 per mole tertiary amine) without appreciable N-methyldiethanolamine degradation rate.

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2 dwg, 6 tbl, 2 ex

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