CN215049947U - High-efficient decarbonization of heavy oil of raw materials adaptability is light device - Google Patents
High-efficient decarbonization of heavy oil of raw materials adaptability is light device Download PDFInfo
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- CN215049947U CN215049947U CN202120744491.6U CN202120744491U CN215049947U CN 215049947 U CN215049947 U CN 215049947U CN 202120744491 U CN202120744491 U CN 202120744491U CN 215049947 U CN215049947 U CN 215049947U
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Abstract
The utility model relates to a decarbonization lightens technical field, concretely relates to high-efficient decarbonization lightens device of heavy oil that raw materials adaptability is wide. The heavy oil high-efficiency decarbonization and lightening device with wide raw material adaptability comprises a raw material buffer tank, a heating furnace, a fractionating tower and a coke tower; the raw material buffer tank a is connected with a heating furnace A, and the heating furnace A is connected with a mixer; the raw material buffer tank B is connected with a heat exchanger, the heat exchanger is connected with an inlet of a fractionating tower, the bottom end of the fractionating tower is connected with a heating furnace B, and the heating furnace B is connected with a mixer; the heating furnace A and the heating furnace B are connected in parallel and then connected with the mixer, the outlet of the mixer is connected with the coke tower a, and the coke tower a and the coke tower B are connected in parallel and then connected with the fractionating tower. The utility model provides a high-efficient decarbonization of heavy oil of raw materials adaptability is light device utilizes original delayed coking device processing vacuum residue, catalysis slurry oil, pitch and deoiled pitch, ethylene tar and the heavy sump oil of refinery, reaches high-efficient, increase, the little effect of investment.
Description
Technical Field
The utility model relates to a decarbonization lightens technical field, concretely relates to high-efficient decarbonization lightens device of heavy oil that raw materials adaptability is wide.
Background
The yield of the catalytic slurry oil generally accounts for 0.5-10% of the processing amount of the device, and the catalytic slurry oil mainly contains polycyclic aromatic hydrocarbons and saturated hydrocarbons, contains a small amount of catalyst and other solids, and has high density and high carbon content. At present, most of catalytic oil slurry is subjected to delayed coking treatment, and a small amount of catalytic oil slurry is used as a needle coke raw material after being blended as fuel oil, blended as asphalt or subjected to solvent dewaxing, and along with the deterioration and scale enlargement of the current catalytic cracking raw material, the economic and reasonable utilization of the catalytic oil slurry is a difficult problem faced by various petroleum refineries at present.
The heavy dirty oil of the refinery contains colloid, asphaltene and other impurities, and has the characteristics of strong emulsifying capacity, serious aging degree, high impurity content, stable emulsion structure and high water content.
The asphalt has the characteristics of high specific gravity, high viscosity, high carbon residue value, high contents of sulfur, asphaltene and heavy metals and the like, is a system with poor thermal stability and easy asphaltene coagulation, is easy to rapidly coke in the thermal conversion process, is easy to cause coking of a furnace tube of a heating furnace, is easy to form shot coke, threatens the safety production of the device, and can shorten the running period of the device due to direct processing.
The traditional delayed coking device is generally used for processing vacuum residue oil, has narrow raw material adaptability, is limited in processing amount when processing heavy oil such as catalytic slurry oil, asphalt, heavy dirty oil, ethylene tar and the like in a blending mode, has a proportion of below 10 percent, can cause accelerated coking of a heat exchanger and a heating furnace tube, frequent decoking, seriously influences long-period operation of equipment, pipeline scouring corrosion and the like, and can also deteriorate the quality of the coking wax oil and the petroleum coke.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a high-efficient decarbonization of heavy oil device that raw materials adaptability is wide, in the oil refining trade, utilize original delayed coking device to process vacuum residue, catalytic slurry oil, pitch and deoiled pitch, ethylene tar and the heavy sump oil of refinery, reach high-efficient, increase, invest in for a short time, reduce the purpose to the equipment influence.
The utility model discloses a heavy oil high-efficiency decarbonization and lightening device with wide raw material adaptability, which comprises a raw material buffer tank, a heating furnace, a fractionating tower and a coke tower; the raw material buffer tank a is connected with a heating furnace A, and the heating furnace A is connected with a mixer; the raw material buffer tank B is connected with a heat exchanger, the heat exchanger is connected with an inlet of a fractionating tower, an outlet at the bottom end of the fractionating tower is connected with a heating furnace B, and the heating furnace B is connected with a mixer; the heating furnace A and the heating furnace B are connected in parallel and then connected with the mixer, the outlet of the mixer is connected with the coke tower a, and the coke tower a and the coke tower B are connected in parallel and then connected with the fractionating tower.
An oil slurry pump is arranged between the heating furnace A and the raw material buffer tank a.
Two parallel pipelines are respectively arranged on two sides of the heating furnace A, and an air injection valve a and an air injection valve b are respectively arranged on the pipelines.
And two parallel pipelines are respectively arranged on the side B of the heating furnace, and an air injection valve d and an air injection valve c are respectively arranged on the pipelines.
A raw material pump is arranged between the raw material buffer tank b and the heat exchanger.
An air injection valve e is arranged at the bottom end of the fractionating tower.
A radiation feed pump is arranged between the outlet at the bottom end of the fractionating tower and the heating furnace B.
The mixer is connected with the coke tower a and the coke tower b through a three-way valve.
And a valve a and a valve b are respectively arranged on pipelines of the fractionating tower connected with the coke tower a and the coke tower b.
Specifically, the heavy oil high-efficiency decarbonization and lightening device with wide raw material adaptability comprises a raw material buffer tank, a heating furnace, a fractionating tower and a coke tower; the raw material buffer tank a is connected with the heating furnace A, an oil slurry pump is arranged between the raw material buffer tank a and the heating furnace A, the heating furnace A is connected with the mixer, two parallel pipelines are respectively arranged on two sides of the heating furnace A, and an air injection valve a and an air injection valve b are respectively arranged on the pipelines; the raw material buffer tank B is connected with a heat exchanger, a raw material pump is arranged between the raw material buffer tank B and the heat exchanger, the heat exchanger is connected with an inlet of a fractionating tower, an outlet at the bottom end of the fractionating tower is connected with a heating furnace B, the heating furnace B is connected with a mixer, two parallel pipelines are respectively arranged on two sides of the heating furnace B, and an air injection valve d and an air injection valve c are respectively arranged on the pipelines; the heating furnace A is connected with the heating furnace B in parallel and then connected with the mixer, the outlet of the mixer is connected with the coke tower a, the coke tower a is connected with the coke tower B in parallel and then connected with the fractionating tower, the bottom end of the fractionating tower is provided with an air injection valve e, and a radiation feeding pump is arranged between the outlet at the bottom end of the fractionating tower and the heating furnace B; the mixer is connected with the coke tower a and the coke tower b through a three-way valve; and a valve a and a valve b are respectively arranged on pipelines of the fractionating tower connected with the coke tower a and the coke tower b.
The utility model discloses a heavy oil individual heating, coke tower mixing technique sets up an independent heating furnace and heats the heavy oil to 500 after adding 530 ℃ with 480 ℃ with 500 ℃ with the residual oil after the heating and mixes the back and get into the coke tower and carry out the green coke reaction, all the other processes are the same with traditional delayed coking process flow, can effectively avoid all kinds of heavy oils to produce adverse effect to former coking equipment, after taking special designs such as heating furnace steam injection, online coke cleaning, the heavy oil processing system can realize long period operation, and does not cause adverse effect to delayed coking equipment; the high-efficiency heavy oil decarbonization and lightening device with wide raw material adaptability adopts low-temperature heat or original heat exchange network optimization, and has lower energy consumption; the yield of light oil is increased, and the benefit is increased; the operation difficulty of the device is reduced, and the device has little influence on the original coking system particularly when processing heavy dirty oil.
Compared with the prior art, the utility model beneficial effect who has is:
1. the heavy oil high-efficiency decarbonization and lightening device with wide raw material adaptability of the utility model has wide raw material adaptability, can process traditional normal pressure and vacuum residual oil, and can also process heavy oil such as catalytic slurry oil, asphalt deoiled asphalt, ethylene tar oil, heavy sump oil of refineries and the like;
2. the heavy oil high-efficiency decarbonization and lightening device with wide raw material adaptability has strong production continuity and large treatment capacity, can improve the heavy oil processing proportion by 20-30 percent compared with the traditional delayed coking device, and improves the processing load of the device;
3. the high-efficiency heavy oil decarbonization and lightening device with wide raw material adaptability of the utility model has the advantages that the decoking period of the heating furnace is prolonged from 4-6 months to 8-10 months, and the running period is prolonged;
4. the utility model discloses a high-efficient decarbonization of heavy oil of raw materials adaptability is light device, and the operation degree of difficulty is low, the investment is little, the energy consumption is low, and the income is high. The original delayed coking device can be used for modification, and the investment is small.
Drawings
Fig. 1 is a schematic structural diagram of the high-efficiency heavy oil decarbonization and lightening device with wide raw material adaptability.
In fig. 1: 1. a raw material buffer tank a; 2. an oil slurry pump; 3. an air injection valve a; 4. heating furnace A; 5. an air injection valve b; 6. a valve a; 7. a valve b; 8. a coke drum a; 9. a coke drum b; 10. a three-way valve; 11. a mixer; 12. an air injection valve c; 13. a heating furnace B; 14. an air injection valve d; 15. a radiation feed pump; 16. a fractionating column; 17. an air injection valve e; 18. a heat exchanger; 19. a feedstock pump; 20. and a raw material buffer tank b.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
The novel heavy oil high-efficiency decarbonization and lightening device with wide raw material adaptability comprises a raw material buffer tank, a heating furnace, a fractionating tower and a coke tower; the raw material buffer tank a1 is connected with a heating furnace A4, and the heating furnace A4 is connected with the mixer 11;
the raw material buffer tank B20 is connected with a heat exchanger 18, the heat exchanger 18 is connected with an inlet of a fractionating tower 16, an outlet at the bottom end of the fractionating tower 16 is connected with a heating furnace B13, and a heating furnace B13 is connected with a mixer 11; furnace A4 and furnace B13 are connected in parallel and then to mixer 11, the outlet of mixer 11 is connected to coke drum A8, and coke drum A8 and coke drum B9 are connected in parallel and then to fractionator 16.
An oil slurry pump 2 is provided between the heating furnace a4 and the material buffer tank a 1.
Two parallel pipelines are respectively arranged at two sides of the heating furnace A4, and an air injection valve a3 and an air injection valve b5 are respectively arranged on the pipelines.
Two parallel pipelines are respectively arranged at the side of the heating furnace B13, and an air injection valve d14 and an air injection valve c12 are respectively arranged on the pipelines.
A raw material pump 19 is provided between the raw material buffer tank b20 and the heat exchanger 18.
An injection valve e17 is provided at the bottom end of the fractionation column 16.
A radiation feed pump 15 is provided between the bottom outlet of the fractionating column 16 and the heating furnace B13.
The mixer 11 is connected to the coke drum a8 and the coke drum b9 by a three-way valve 10.
The pipelines of the fractionating tower 16 connected to the coke drum a8 and the coke drum b9 are provided with a valve a6 and a valve b7, respectively.
Specifically, the high-efficiency heavy oil decarbonization and lightening device with wide raw material adaptability comprises a raw material buffer tank, a heating furnace, a fractionating tower and a coke tower; the raw material buffer tank a1 is connected with a heating furnace A4, an oil slurry pump 2 is arranged between the raw material buffer tank a1 and the heating furnace A4, the two sides of the heating furnace A4 are respectively provided with two parallel pipelines, and the pipelines are respectively provided with an air injection valve A3 and an air injection valve b 5; the raw material buffer tank B20 is connected with a heat exchanger 18, a raw material pump 19 is arranged between the raw material buffer tank B20 and the heat exchanger 18, the heat exchanger 18 is connected with an inlet of a fractionating tower 16, an outlet at the bottom end of the fractionating tower 16 is connected with a heating furnace B13, a heating furnace B13 is connected with a mixer 11, two parallel pipelines are respectively arranged at the side of the heating furnace B13, and an air injection valve d14 and an air injection valve c12 are respectively arranged on the pipelines; the heating furnace A4 and the heating furnace B13 are connected in parallel and then connected with the mixer 11, the outlet of the mixer 11 is connected with the coke tower A8, the coke tower A8 and the coke tower B9 are connected in parallel and then connected with the fractionating tower 16, the bottom end of the fractionating tower 16 is provided with an air injection valve e17, and a radiation feed pump 15 is arranged between the outlet at the bottom end of the fractionating tower 16 and the heating furnace B13; the mixer 11 is connected with the coke drum a8 and the coke drum b9 through a three-way valve 10; the pipelines of the fractionating tower 16 connected to the coke drum a8 and the coke drum b9 are provided with a valve a6 and a valve b7, respectively.
The method is characterized in that a technology of independently heating heavy oil and mixing in a coke tower is adopted to process catalytic slurry oil, an independent heating furnace is arranged to heat the heavy oil to 530 ℃ for 500 plus materials, then the heavy oil is mixed with the heated residual oil at 480 plus materials at 500 ℃ and then enters the coke tower for coke formation reaction, the rest flows are the same as the traditional delayed coking process flow, the adverse effect of various heavy oils on the original coking device can be effectively avoided, and after the special designs such as steam injection and on-line coke cleaning of the heating furnace are adopted, the heavy oil processing system can realize long-period operation without causing adverse effect on the delayed coking device; the high-efficiency heavy oil decarbonization and lightening device with wide raw material adaptability adopts low-temperature heat or original heat exchange network optimization, and has lower energy consumption; the yield of light oil is increased, and the benefit is increased; the operation difficulty of the device is reduced, and the device has little influence on the original coking system particularly when processing heavy dirty oil.
In the coking product in the embodiment, the properties of dry gas, liquefied gas, gasoline and diesel oil are not changed greatly, the coking wax oil is heavy, and the ash content of coke is increased, but the operation of a downstream device and the outside of the product are not influenced; the yield of the coking wax oil is increased by 1 to 1.5 percent, the yield of the coke is increased by 2 to 3 percent, and the yield of the gasoline and diesel oil is reduced by 2 to 3 percent; compared with the method for selling the catalytic slurry oil as fuel oil, the method can increase the benefit by 100-300 yuan per ton, and compared with the method for selling asphalt as asphalt, the method can increase the benefit by 100-200 yuan per ton for processing asphalt in slack season.
Claims (9)
1. The utility model provides a high-efficient decarbonization of heavy oil of raw materials adaptability is light device which characterized in that: comprises a raw material buffer tank, a heating furnace, a fractionating tower and a coke tower; the raw material buffer tank a (1) is connected with a heating furnace A (4), and the heating furnace A (4) is connected with a mixer (11); the raw material buffer tank B (20) is connected with a heat exchanger (18), the heat exchanger (18) is connected with an inlet of a fractionating tower (16), an outlet at the bottom end of the fractionating tower (16) is connected with a heating furnace B (13), and the heating furnace B (13) is connected with a mixer (11); the heating furnace A (4) and the heating furnace B (13) are connected in parallel and then connected with the mixer (11), the outlet of the mixer (11) is connected with the coke tower a (8), and the coke tower a (8) and the coke tower B (9) are connected in parallel and then connected with the fractionating tower (16).
2. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: an oil slurry pump (2) is arranged between the heating furnace A (4) and the raw material buffer tank a (1).
3. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: two sides of the heating furnace A (4) are respectively provided with two parallel pipelines, and the pipelines are respectively provided with an air injection valve a (3) and an air injection valve b (5).
4. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: two parallel pipelines are respectively arranged at the side of the heating furnace B (13), and an air injection valve d (14) and an air injection valve c (12) are respectively arranged on the pipelines.
5. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: a raw material pump (19) is provided between the raw material buffer tank (b 20) and the heat exchanger (18).
6. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: an air injection valve e (17) is arranged at the bottom end of the fractionating tower (16).
7. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: a radiation feed pump (15) is arranged between the outlet at the bottom end of the fractionating tower (16) and the heating furnace B (13).
8. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: the mixer (11) is connected with the coke tower a (8) and the coke tower b (9) through a three-way valve (10).
9. The apparatus for efficiently decarbonizing and upgrading heavy oil with wide raw material adaptability according to claim 1, characterized in that: the pipeline of the fractionating tower (16) connected with the coke tower a (8) and the coke tower b (9) is respectively provided with a valve a (6) and a valve b (7).
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| CN202120744491.6U CN215049947U (en) | 2021-04-12 | 2021-04-12 | High-efficient decarbonization of heavy oil of raw materials adaptability is light device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115028278A (en) * | 2022-07-08 | 2022-09-09 | 中国石油化工股份有限公司 | Oil-water separation equipment, and device and method for retarding corrosion of dirty oil recycling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115028278A (en) * | 2022-07-08 | 2022-09-09 | 中国石油化工股份有限公司 | Oil-water separation equipment, and device and method for retarding corrosion of dirty oil recycling system |
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