CN213313378U - Steam heating rich oil debenzolization device - Google Patents
Steam heating rich oil debenzolization device Download PDFInfo
- Publication number
- CN213313378U CN213313378U CN202020695477.7U CN202020695477U CN213313378U CN 213313378 U CN213313378 U CN 213313378U CN 202020695477 U CN202020695477 U CN 202020695477U CN 213313378 U CN213313378 U CN 213313378U
- Authority
- CN
- China
- Prior art keywords
- rich oil
- heat exchanger
- debenzolization
- tower
- steam
- 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 rich oil debenzolization device of steam heating belongs to coal coking technical field, wash benzene tower two-pass half rich oil pump and wash benzene tower one and establish ties, wash benzene tower one and be connected with poor rich oil heat exchanger through rich oil pump, poor rich oil heat exchanger passes through the pipeline and is connected with rich oil heater, poor rich oil heat exchanger passes through the pipeline and is connected with the debenzolization tower, the debenzolization tower bottom is connected with poor rich oil heat exchanger through poor oil pump, the flash tank passes through the relief pressure valve and is connected with rich oil heater, poor rich oil cooler is passed through at the top of poor rich oil heat exchanger and is connected with washing benzene tower two, rich oil heater lets in high-quality steam through steam line. The utility model discloses a rich oil of steam heating debenzolization device uses steam heating not only environmental protection but also safe and reliable, and traditional heating furnace has the oil leak to catch fire and risks such as backfire explosion in heating process, and steam heating rich oil mode uses steam as the heating source, and fundamentally eliminates the above-mentioned safe risk safe and reliable more that exists, stops the emergence of all kinds of incident.
Description
Technical Field
The utility model relates to a coal coking technical field, specifically speaking, the utility model relates to a steam heating rich oil debenzolization device.
Background
Crude benzene is an important chemical raw material and is one of main products of coking enterprises. The traditional coking crude benzene production usually adopts a tubular furnace to heat rich oil and low-pressure steam, and the following defects are found in the actual production by adopting the tubular furnace for heating: 1. in the aspect of environmental protection: the heating mode of the tube furnace can generate harmful gases such as CO2, CO, NOx, SOx and the like, and the risk of air pollution exists. 2. And (4) safety aspects: the tubular furnace has the risk of oil leakage ignition and tempering explosion in the heating process, and 3, the aspects of energy conservation and consumption reduction are as follows: the temperature in the tubular furnace can reach above 700 ℃ in a heating mode of the tubular furnace, and the unsaturated compounds in the rich oil are subjected to polymerization reaction at high temperature for a long time due to the circulation of the rich oil at high temperature, so that the polymerization reaction rate is accelerated, the deterioration of the circulating wash oil is accelerated, the benzene washing efficiency is influenced, and the consumption of the wash oil is increased.
Disclosure of Invention
The utility model aims to solve the technical problem that a steam heating rich oil debenzolization device is provided, the device not only realize the high-efficient heating to the rich oil, but fundamentally eliminates safety, the environmental protection hidden danger that former heating rich oil in-process exists simultaneously.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a steam heating rich oil debenzolization device, includes benzene washing tower one and benzene washing tower two, poor rich oil heat exchanger, rich oil heater, flash tank and debenzolization tower, benzene washing tower two is established ties with benzene washing tower one through half rich oil pump, and benzene washing tower one is connected with poor rich oil heat exchanger through rich oil pump, and poor rich oil heat exchanger passes through the pipeline and is connected with rich oil heater, and poor rich oil heat exchanger passes through the pipeline and is connected with the debenzolization tower, and the bottom of the debenzolization tower passes through poor oil pump and is connected with poor rich oil heat exchanger, the flash tank passes through the relief pressure valve and is connected with rich oil heater, and the top of poor rich oil heat exchanger passes through the poor oil cooler and is connected with benzene washing tower two, and rich oil heater passes through the high-quality steam.
Preferably, the system also comprises a regenerator, wherein the regenerator is connected with the debenzolization tower through a pipeline, and high-quality steam is introduced into the regenerator.
Adopt the technical scheme of the utility model, can obtain following beneficial effect:
the utility model discloses a rich oil of steam heating debenzolization device uses steam heating not only environmental protection but also safe and reliable, and traditional heating furnace has the oil leak to catch fire and risk such as backfire explosion in the heating process, and steam heating rich oil mode uses steam as the heating source, and fundamentally eliminates the above-mentioned safe risk safe and reliable more that exists, stops the emergence of all kinds of incident, does not discharge harmful gas among the steam heating process. The steam is adopted for heating uniformly, and the energy consumption is reduced.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural view of the apparatus;
the labels in the above figures are: 1. a rich oil heater; 2. a rich oil line; 3. a pressure reducing valve; 4. a steam line; 5. a regenerator; 6. a debenzolization tower; 7. a lean oil pump; 8. a benzene gas line; 9. a lean oil line; 10. a lean-rich oil heat exchanger; 11. a lean oil cooler; 12. a second benzene washing tower; 13. a semi-rich pump; 14. a benzene washing tower I; 15. an oil-rich pump; 16. a flash tank; 17. a low pressure steam line.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, in which the shapes, structures, mutual positions and connection relationships of the respective members, the functions of the respective portions, the operation principles, and the like of the respective members are described.
As shown in fig. 1, the steam-heated rich oil debenzolization device comprises a benzene washing tower I14, a benzene washing tower II 12, a lean-rich oil heat exchanger 10, a rich oil heater 1, a flash tank 16 and a debenzolization tower 6, wherein the benzene washing tower II 12 is connected with the benzene washing tower I14 in series through a semi-rich oil pump 13, the benzene washing tower I14 is connected with the lean-rich oil heat exchanger 10 through a rich oil pump 15, the lean-rich oil heat exchanger 10 is connected with the rich oil heater 1 through a rich oil pipeline 2, the lean-rich oil heat exchanger 10 is connected with the debenzolization tower 6 through a rich oil pipeline 2, the bottom of the debenzolization tower 6 is connected with the lean-rich oil heat exchanger 10 through a lean oil pump 7, the flash tank 16 is connected with the rich oil heater 1 through a pressure reducing valve 3, the top of the lean-rich oil heat exchanger 10 is connected with the benzene washing tower II 12 through a lean oil cooler 11, and. The regenerator 5 is connected with the debenzolization tower 6 through a pipeline, high-quality steam is introduced into the regenerator 5, the regenerator 5 is used for continuously introducing a part of the circulating wash oil into the regenerator 5, the wash oil in the regenerator is heated to a certain temperature, unsaturated compounds in the wash oil are polymerized and discharged as high-boiling-point residues, and the quality of the circulating wash oil is ensured.
As shown in figure 1, when in use, the rich oil which is subjected to benzene washing in the benzene washing tower II 12 and the benzene washing tower I14 is pumped into a lean and rich oil heat exchanger 10, the temperature of the rich oil is raised to 145 ℃ after heat exchange and then enters a rich oil heater 1, the rich oil is reheated to 175-180 ℃ by using high-quality steam with the pressure not less than 3.0Mpa, the heated rich oil enters a debenzolization tower 6, the debenzolization lean oil enters a lean oil cooler 11 after heat exchange in the lean and rich oil heat exchanger 10, the cooled lean oil is sent to the benzene washing tower II 12 for benzene washing, the benzene-washed semi-rich oil is sent to the benzene washing tower I14 for benzene washing again, and the benzene-washed rich oil is sent to the lean and rich oil heat exchanger 10 for circulation. High-pressure saturated water generated after high-quality steam enters the rich oil heater 1 enters the flash tank 16 through the pressure reducing valve 3 and the drain valve, the high-pressure saturated water is instantly vaporized in the flash tank 16 due to pressure reduction to generate steam with low pressure grade, and the low-pressure steam is conveyed to a low-pressure steam pipe network through a low-pressure steam pipeline 17 arranged on the flash tank 16 to be reused.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (2)
1. The utility model provides a rich oil of steam heating debenzolization device which characterized in that: the device comprises a benzene washing tower I, a benzene washing tower II, a lean and rich oil heat exchanger, a rich oil heater, a flash tank and a debenzolization tower, wherein the benzene washing tower II is connected with the benzene washing tower I in series through a semi-rich oil pump, the benzene washing tower I is connected with the lean and rich oil heat exchanger through the rich oil pump, the lean and rich oil heat exchanger is connected with the rich oil heater through a pipeline, the lean and rich oil heat exchanger is connected with the debenzolization tower through a pipeline, the bottom of the debenzolization tower is connected with the lean and rich oil heat exchanger through the lean oil pump, the flash tank is connected with the rich oil heater through a pressure reducing valve, the top of the lean and rich oil heat exchanger is connected with the benzene washing tower II through a lean oil cooler.
2. The steam-heated oil-rich debenzolization apparatus as claimed in claim 1, wherein: the device also comprises a regenerator, wherein the regenerator is connected with the debenzolization tower through a pipeline, and high-quality steam is introduced into the regenerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020695477.7U CN213313378U (en) | 2020-04-29 | 2020-04-29 | Steam heating rich oil debenzolization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020695477.7U CN213313378U (en) | 2020-04-29 | 2020-04-29 | Steam heating rich oil debenzolization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213313378U true CN213313378U (en) | 2021-06-01 |
Family
ID=76058468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020695477.7U Active CN213313378U (en) | 2020-04-29 | 2020-04-29 | Steam heating rich oil debenzolization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213313378U (en) |
-
2020
- 2020-04-29 CN CN202020695477.7U patent/CN213313378U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202465298U (en) | Equipment for utilizing residual heat of coke oven flue gas to evaporate ammonia | |
| CN207998481U (en) | A kind of supercritical water oxidation treatment system | |
| CN209960532U (en) | Waste heat recycling system of gas boiler | |
| CN203848266U (en) | Recycling system for waste heat of flue gas of blast furnace gas boiler | |
| CN213313378U (en) | Steam heating rich oil debenzolization device | |
| CN102602960A (en) | Method for stilling ammonia by aid of waste heat of flue gas of coke oven and equipment | |
| CN111518582A (en) | Device and method for debenzolizing coal tar steam | |
| CN108444147B (en) | Hot water reverse series direct combustion double-effect lithium bromide absorption heat pump unit | |
| CN216192066U (en) | System for replacing crude benzene zone tube furnace with waste heat of coke oven flue gas waste heat boiler and ascending tube | |
| CN211522135U (en) | Device for heating rich oil and removing benzene by using waste heat of coke oven ascending pipe | |
| CN206599441U (en) | A kind of byproduct steam hydrochloric acid synthesis system | |
| CN102078855A (en) | Drying residual-heat utilization device of large-scale automobile coating production line | |
| CN205297662U (en) | System for integrated double reheat unit and decarbonization device | |
| CN212769886U (en) | Equipment for preparing activated carbon by high-pressure steam | |
| CN210215230U (en) | Coke oven flue gas waste heat recovery device | |
| CN209917589U (en) | Smoke whitening device | |
| CN209490655U (en) | For carbon capture, seal up for safekeeping and using technology carbon dioxide equipment | |
| CN203928764U (en) | A kind of electric furnace fume residual heat recycle device | |
| CN110776962A (en) | Device and method for heating rich oil and removing benzene by using waste heat of coke oven ascending pipe | |
| CN207958243U (en) | A kind of coke oven coke oven uprising tube raw coke oven gas heat recovery heat exchanger of automatic leak detection | |
| CN213811167U (en) | Conduction oil cyclic utilization system | |
| CN104003385A (en) | Energy gradient utilization and saving device for SLEP activating furnace and method application thereof | |
| CN216924495U (en) | Steam coupling system based on municipal administration central heating system | |
| CN219714064U (en) | Water purging device for furnace tube of heating furnace | |
| CN203890065U (en) | Energy-saving device for cascade utilization of energy from Stepple activation furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |