CN214032350U - Top oil reduction dephenolization system - Google Patents
Top oil reduction dephenolization system Download PDFInfo
- Publication number
- CN214032350U CN214032350U CN202022558120.7U CN202022558120U CN214032350U CN 214032350 U CN214032350 U CN 214032350U CN 202022558120 U CN202022558120 U CN 202022558120U CN 214032350 U CN214032350 U CN 214032350U
- Authority
- CN
- China
- Prior art keywords
- oil
- reduced
- water
- pipe
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a top-reducing oil dephenolization system, including the vacuum distillation tower, the top-reducing oil export of vacuum distillation tower and the top-reducing oil access connection of cooler, top-reducing oil export and the access connection of top-reducing oil backward flow jar, the exhaust tube and the vacuum pump connection of top-reducing oil backward flow jar, the oil drain port of top-reducing oil backward flow jar and the top-reducing oil backward flow mouth of vacuum distillation tower are connected and are installed the oil water interface meter in the hybrid tank, install drainage electric butterfly valve on the drain pipe, install water injection electric butterfly valve on the water injection pipe. The water is added into the reduced-head oil, the water and the reduced-head oil are fully mixed by using the mixer and finally sent into the mixing tank for separation, so that the complete separation of the reduced-head oil and the phenol is realized, the procedure of hydrogenation of the reduced-head oil can be omitted, and the emission of pollution is reduced; and the opening degrees of the drainage electric butterfly valve and the water injection electric butterfly valve are controlled through an oil-water interface meter, so that the situation that the top-reducing oil is not discharged in a drainage pipe is ensured, the phenol-containing water is not discharged in an oil drainage pipe, and the complete separation of the top-reducing oil and phenol is thoroughly realized.
Description
The technical field is as follows:
the utility model relates to a coal chemical industry field, concretely relates to top-reducing oil dephenolization system.
Background art:
the coal tar is subjected to a distillation process in a reduced pressure distillation tower, and reduced top oil, middle oil and heavy oil are respectively generated at the tower top, the middle section and the tower bottom, wherein the heavy oil is sent to a leaching production section to prepare asphalt, the middle oil is subjected to hydrogenation treatment, and the reduced top oil contains a small amount of water and a large amount of phenol. The phenol content in the reduced top oil is about 20-30%, in order to extract the part of phenol, the reduced top oil needs to be subjected to hydrotreating in the next working section, and in the hydrotreating working section, harmful gas can be generated due to the existence of the reduced top oil, so that the atmospheric environment is affected, and the physical health of workers is seriously threatened, therefore, measures must be taken to remove the phenol in the reduced top oil.
The utility model has the following contents:
an object of the utility model is to provide a subtract oily dephenolization system of top oil and good phenol separation effect.
The utility model discloses by following technical scheme implement:
a reduced-overhead oil dephenolization system comprises a reduced-pressure distillation tower, wherein a reduced-overhead oil outlet of the reduced-pressure distillation tower is connected with a reduced-overhead oil inlet of a cooler, a reduced-overhead oil outlet is connected with an inlet of a reduced-overhead oil reflux tank, an air suction pipe of the reduced-overhead oil reflux tank is connected with a vacuum pump, and an oil discharge port of the reduced-overhead oil reflux tank is connected with a reduced-overhead oil reflux port of the reduced-pressure distillation tower;
an oil discharge port of the top reducing oil return tank is connected with one end of a main pipeline, the other end of the main pipeline is connected with an inlet of a mixer, a phenol-containing top reducing oil pipe is connected to the main pipeline, a water injection pipe is connected to the main pipeline between the phenol-containing top reducing oil pipe and the mixer, an outlet of the mixer is connected with an inlet of the mixing tank, a drain pipe is arranged at the bottom of the mixing tank, and an oil discharge pipe is arranged in the middle of the mixing tank;
an oil-water interface meter is installed in the mixing tank, a drainage electric butterfly valve is installed on the drainage pipe, and a water injection electric butterfly valve is installed on the water injection pipe; the signal output end of the oil-water interface meter is electrically connected with the signal input end of the controller, and the water injection electric butterfly valve and the water drainage electric butterfly valve are electrically connected with the signal output end of the controller.
Preferably, the bottom of the reduced-overhead oil reflux tank is connected with a water separation tank, and the bottom of the water separation tank is connected with a phenol-containing water pipe.
Preferably, a stirring blade is arranged in the mixing tank and connected with a stirring motor.
Preferably, the mixing tank further comprises a circulating pipe, two ends of the circulating pipe are respectively connected with the lower part and the upper part of the mixing tank, and the circulating pump is mounted on the circulating pipe.
The utility model has the advantages that: the water is added into the reduced-head oil, the water and the reduced-head oil are fully mixed by using the mixer and finally sent into the mixing tank for separation, so that the complete separation of the reduced-head oil and the phenol is realized, the procedure of hydrogenation of the reduced-head oil can be omitted, and the emission of pollution is reduced; and the opening degrees of the drainage electric butterfly valve and the water injection electric butterfly valve are controlled through an oil-water interface meter, so that the situation that the top-reducing oil is not discharged in a drainage pipe is ensured, the phenol-containing water is not discharged in an oil drainage pipe, and the complete separation of the top-reducing oil and phenol is thoroughly realized.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the circuit connection of the present invention;
FIG. 3 is a schematic view of a mixing tank of example 1;
fig. 4 is a schematic diagram of the mixing tank of example 2.
In the figure: the device comprises a reduced pressure distillation tower 1, a cooler 2, a reduced top oil reflux tank 3, a vacuum pump 4, a main pipeline 5, a mixer 6, a phenol-containing reduced top oil pipe 7, a water injection pipe 8, a mixing tank 9, a water discharge pipe 10, an oil discharge pipe 11, an oil-water interface meter 12, a water discharge electric butterfly valve 13, a water injection electric butterfly valve 14, a controller 15, a water separation tank 16, a phenol-containing water pipe 17, stirring blades 18, a stirring motor 19, a circulating pipe 20 and a circulating pump 21.
The specific implementation mode is as follows:
example 1
As shown in fig. 1 to 3, a reduced-overhead oil dephenolization system comprises a reduced-pressure distillation tower 1, wherein a reduced-overhead oil outlet of the reduced-pressure distillation tower 1 is connected with a reduced-overhead oil inlet of a cooler 2, a reduced-overhead oil outlet is connected with an inlet of a reduced-overhead oil reflux tank 3, an extraction pipe of the reduced-overhead oil reflux tank 3 is connected with a vacuum pump 4, and an oil discharge port of the reduced-overhead oil reflux tank 3 is connected with a reduced-overhead oil reflux port of the reduced-pressure distillation tower 1; the bottom of the reduced-ceiling oil reflux tank 3 is connected with a water separation tank 16, and the bottom of the water separation tank 16 is connected with a phenol-containing water pipe 17;
an oil discharge port of the top reducing oil reflux tank 3 is connected with one end of a main pipeline 5, the other end of the main pipeline 5 is connected with an inlet of a mixer 6, a phenol-containing top reducing oil pipe 7 is connected on the main pipeline 5, a water injection pipe 8 is connected on the main pipeline 5 between the phenol-containing top reducing oil pipe 7 and the mixer 6, an outlet of the mixer 6 is connected with an inlet of a mixing tank 9, a water discharge pipe 10 is arranged at the bottom of the mixing tank 9, and an oil discharge pipe 11 is arranged in the middle of the mixing tank 9;
an oil-water interface meter 12 is arranged in the mixing tank 9, a water discharge electric butterfly valve 13 is arranged on the water discharge pipe 10, and a water injection electric butterfly valve 14 is arranged on the water injection pipe 8; the signal output end of the oil-water interface meter 12 is electrically connected with the signal input end of the controller 15, and the water injection electric butterfly valve 14 and the water drainage electric butterfly valve 13 are electrically connected with the signal output end of the controller 15;
the reduced-pressure distillation tower 1 distills the reduced-pressure oil and discharges from a reduced-pressure oil outlet at the top of the tower, the reduced-pressure oil enters a cooler 2 for cooling to ensure that the reduced-pressure oil is condensed into liquid, a vacuum pump 4 communicated with a reduced-pressure oil reflux tank 3 vacuumizes the reduced-pressure oil reflux tank 3, the condensed reduced-pressure oil is pumped into the reduced-pressure oil reflux tank 3, a part of water is mixed in the reduced-pressure oil reflux tank 3, but the density of the water is higher than that of the reduced-pressure oil, so that the water mixed in the reduced-pressure oil reflux tank 3 sinks to the bottom and enters a water separation tank 16, and the water in the water separation tank 16 is discharged from a phenol-containing water pipe 17 connected with the bottom at fixed time; the reduced-overhead oil in the reduced-overhead oil reflux tank 3 is discharged from an oil discharge port and refluxed to the top of the reduced-pressure distillation tower 1; and the reduced-top oil in the reduced-top oil return tank 3 can be sent into the main pipeline 5 and can be discharged from the phenol-containing reduced-top oil pipe 7 to be directly canned and sold;
the unsold phenol-containing top-reduced oil continuously flows along the main pipeline 5, water is injected into the main pipeline 5 by a water injection pipe 8 in front of the mixer 6, then the top-reduced oil and the water are sent into the mixer 6 to be fully mixed, phenol in the top-reduced oil is dissolved in the water in the mixing process, and then the mixture is sent into a mixing tank 9 to be separated; in the mixing tank 9, the top-reduced oil and the phenol-containing water are separated, the phenol-containing water at the lower layer is discharged from a water discharge pipe 10, and the top-reduced oil at the upper layer is discharged from an oil discharge pipe 11;
an oil-water interface meter 12 in the mixing tank 9 is used for detecting the interface of the reduced-top oil and the phenolic water, when the interface of the reduced-top oil and the phenolic water is located in a specified range, the reduced-top oil and the phenolic water are normally separated, if the oil-water interface meter 12 detects that the interface of the reduced-top oil and the phenolic water is about to reach the height of the oil discharge pipe 11, a signal is sent to a control controller 15, the controller 15 controls the opening of a drainage electric butterfly valve 13 to increase, the drainage of the phenolic water is accelerated, the interface of the reduced-top oil and the phenolic water is lowered to the specified range, and when the interface of the reduced-top oil and the phenolic water is located in the specified range, the drainage electric butterfly valve 13 is controlled to return to the normal opening; when the oil-water interface meter 12 detects that the interface of the reduced-top oil and the phenolic water is about to reach the height of the drain pipe 10, a signal is sent to the control controller 15, the controller 15 controls the opening of the water injection electric butterfly valve 14 to increase, the water injection is accelerated, the interface of the reduced-top oil and the phenolic water is raised to a specified range, and after the interface of the reduced-top oil and the phenolic water is placed in the specified range, the water injection electric butterfly valve 14 is controlled to return to a normal opening; ensuring that no top-reducing oil is discharged from the drain pipe 10 and no phenol-containing water is discharged from the drain pipe 11;
in order to ensure that all the phenol in the reduced oil is dissolved by water, a stirring blade 18 is arranged in the mixing tank 9, the stirring blade 18 is connected with a stirring motor 19, the reduced oil and the water in the mixing tank 9 are fully stirred, and the phenol dissolving effect is improved.
Example 2
As shown in FIG. 4, a system for removing phenol from reduced-head oil has the same overall structure as that of embodiment 1, except that it further comprises a circulation pipe 20, both ends of the circulation pipe 20 are connected to the lower part and the upper part of the mixing tank 9, respectively, and a circulation pump 21 is installed on the circulation pipe 20 to make the reduced-head oil and water in the mixing tank 9 fully contact with each other, thereby ensuring that all phenol is dissolved in the water.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A top oil dephenolization system is characterized in that: the system comprises a reduced pressure distillation tower, wherein a reduced-overhead oil outlet of the reduced pressure distillation tower is connected with a reduced-overhead oil inlet of a cooler, the reduced-overhead oil outlet is connected with an inlet of a reduced-overhead oil reflux tank, an air suction pipe of the reduced-overhead oil reflux tank is connected with a vacuum pump, and an oil discharge port of the reduced-overhead oil reflux tank is connected with a reduced-overhead oil reflux port of the reduced pressure distillation tower;
an oil discharge port of the top reducing oil return tank is connected with one end of a main pipeline, the other end of the main pipeline is connected with an inlet of a mixer, a phenol-containing top reducing oil pipe is connected to the main pipeline, a water injection pipe is connected to the main pipeline between the phenol-containing top reducing oil pipe and the mixer, an outlet of the mixer is connected with an inlet of the mixing tank, a drain pipe is arranged at the bottom of the mixing tank, and an oil discharge pipe is arranged in the middle of the mixing tank;
an oil-water interface meter is installed in the mixing tank, a drainage electric butterfly valve is installed on the drainage pipe, and a water injection electric butterfly valve is installed on the water injection pipe; the signal output end of the oil-water interface meter is electrically connected with the signal input end of the controller, and the water injection electric butterfly valve and the water drainage electric butterfly valve are electrically connected with the signal output end of the controller.
2. The top-reduced oil dephenolation system as claimed in claim 1, wherein: the bottom of the reduced-top oil reflux tank is connected with a water separation tank, and the bottom of the water separation tank is connected with a phenol-containing water pipe.
3. The reduced oil dephenolation system as claimed in claim 1 or 2, wherein: and stirring blades are arranged in the mixing tank and connected with a stirring motor.
4. The reduced oil dephenolation system as claimed in claim 1 or 2, wherein: the mixing tank is characterized by further comprising a circulating pipe, wherein two ends of the circulating pipe are respectively connected with the lower portion and the upper portion of the mixing tank, and a circulating pump is mounted on the circulating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022558120.7U CN214032350U (en) | 2020-11-06 | 2020-11-06 | Top oil reduction dephenolization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022558120.7U CN214032350U (en) | 2020-11-06 | 2020-11-06 | Top oil reduction dephenolization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214032350U true CN214032350U (en) | 2021-08-24 |
Family
ID=77357277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022558120.7U Active CN214032350U (en) | 2020-11-06 | 2020-11-06 | Top oil reduction dephenolization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214032350U (en) |
-
2020
- 2020-11-06 CN CN202022558120.7U patent/CN214032350U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203513352U (en) | Ozone air floatation device for treating polymer flooding oily sewage | |
| CN103277081A (en) | Treatment process and device for oil-water well fractured and acidified flowback liquid | |
| CN206051696U (en) | A kind of river sewage is without power consumption aeration purifier | |
| CN214032350U (en) | Top oil reduction dephenolization system | |
| CN201783230U (en) | Gas-liquid separation device | |
| CN201458785U (en) | Purified acid wastewater degasser | |
| CN1277758C (en) | Process flow technique for treating waste liquid of fracturing operation for oil well drilling | |
| CN212960912U (en) | Siphon breaking device | |
| CN204897855U (en) | Atmospheric and vacuum unit gas processing system | |
| CN204625365U (en) | For the system that begins to rehearse of offshore platform | |
| CN211393943U (en) | Ceramic membrane oil-water separation device | |
| CN202811382U (en) | Device used for replacing self-priming pump to work | |
| CN217189457U (en) | Olefin workshop shutdown, water-returning and material-returning system | |
| CN101975171B (en) | Water-pump piloting automatic vacuum suction device | |
| CN105417882A (en) | Sewage treatment system | |
| CN206587435U (en) | A kind of oil water separator | |
| CN206814706U (en) | A kind of sump oil integrated processing system | |
| CN110947311A (en) | Oil product mixing device and process in needle coke production process | |
| CN206544924U (en) | A kind of anti-clogging oily-water seperating equipment | |
| CN220047120U (en) | Automatic vacuum switching operation device of rectifying tower in production process of benzenediol | |
| CN213724970U (en) | Backflow tank with floating suction head | |
| CN218151698U (en) | Air lift pump | |
| CN217148713U (en) | Three-phase separation device used in IC anaerobic reactor | |
| CN221074219U (en) | Oil well air release device | |
| CN209442663U (en) | Removable waste liquid recovery apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |