CN206295742U - A kind of dust-laden is pyrolyzed the full oil wash system of oil gas - Google Patents
A kind of dust-laden is pyrolyzed the full oil wash system of oil gas Download PDFInfo
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- CN206295742U CN206295742U CN201621422765.5U CN201621422765U CN206295742U CN 206295742 U CN206295742 U CN 206295742U CN 201621422765 U CN201621422765 U CN 201621422765U CN 206295742 U CN206295742 U CN 206295742U
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Abstract
The utility model provides a kind of dust-laden and is pyrolyzed the full oil wash system of oil gas, including chilling tower and fractionating column, also including taking thermal;Chilling tower sets pending oil and gas import, the first oil inlet, cooling oil gas vent and the first tar outlet;Fractionating column sets cooling oil and gas import, the 3rd oil inlet, fractionation oil gas vent and the second tar outlet;Chilling tower cooler oil gas vent is connected with fractionating column cooling oil and gas import;Second tar outlet is connected with the first oil inlet, and the second tar outlet also takes thermal and is respectively connected with the 3rd oil inlet and storage tank by first.The dust-laden pyrolysis full oil wash system of oil gas avoids using water as quenching medium, greatly reduces the discharge capacity of sewage, reduces sewage disposal difficulty;Method due to being cleaned to pyrolysis of coal oil gas using chilling tower weight oil spray, the tar light oil of generation is less containing Dust Capacity, and the tar quality for obtaining is higher, and a heavy tar part for generation carries out freshening, improves tar light oil yield.
Description
Technical field
The utility model belongs to technical field of coal chemical industry, is related to a kind of dust-laden pyrolysis full oil wash system of oil gas.
Background technology
Coal sub-prime, using being considered as the efficient effective way for utilizing of Coal Clean, is also China " 13 " Coal Chemical Industry
The direction given priority to.The sub-prime of coal is separated using being exactly first to be separated heterogeneity in coal by pyrolysis
Product including coal gas, tar and semicoke etc..Coal tar can produce gasoline, diesel oil by hydrogenation;Semicoke is become by being pyrolyzed
Into low volatile, the clean fuel of low-sulfur, instead of dissipating the pollution for burning coal reduction to air;Coal gas can make directly as fuel gas
With.
According to the structure of matter and its physicochemical properties of low-order coal, low temperature pyrogenation technology is divided coal in
Matter, by pyrolysis of coal into gas, liquid, solid three-phase material, then further according to all kinds of thermal decomposition products physicochemical properties it is distinguishing enter
Row is utilized, step deep processing, produces large industrial chemicals and all kinds of fine chemical products.
At present, containing more dust and heavy tar in the oil gas that middle low temperature pyrogenation technology is produced, adopted pyrolysis oil gas more
The method for washing with water is reclaimed, and the tar dustiness for obtaining is big, and sewage is difficult, and heavy tar is more, poor quality, using difficulty
Greatly.
CN106147879A discloses a kind of rapid pyrolysis oil gas processing system and method.The system include pyrolysis oven,
Chilling tower, fractionating column;Pyrolysis oven is provided with pyrolysis oil gas vent and opposition is arranged on the nozzle of lower portion of furnace body both sides;Chilling tower
It is provided with pyrolysis oil gas entrance, first cold oil gas vent, heavy tar outlet;The pyrolysis oil gas vent of pyrolysis oil gas entrance and pyrolysis oven
Connection;Heavy tar outlet is connected with nozzle;Fractionating column is provided with just cold oil gas entrance;First cold oil gas entrance and the chilling tower
Just cold oil gas vent connection.It can make fuel many output tar light oil components and pyrolysis gas during fast pyrogenation, not produce
Go out the tar of dust-laden heavy.But, the dustiness in pyrolysis of coal oil gas after the system treatment also compares many, it is necessary to continue
Explore the dust collection method of dust-laden pyrolysis of coal oil gas.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of dust-laden pyrolysis full oil wash of oil gas
System, the system can contain the less tar light oil of Dust Capacity, and can reduce quantity of wastewater effluent, reduce sewage disposal
Difficulty.
It is that, up to this purpose, the utility model uses following technical scheme:
One of the purpose of this utility model is to provide a kind of dust-laden pyrolysis full oil wash system of oil gas, including chilling tower and point
Tower is evaporated, the system also takes thermal including first;The chilling tower sets pending oil and gas import, the first oil inlet, cooling
Oil gas vent and the first tar outlet;The fractionating column sets cooling oil and gas import, the 3rd oil inlet, fractionation oil gas vent and the
Two tar outlets;The cooling oil gas vent is connected with cooling oil and gas import;Second tar outlet and the first oil inlet phase
Even, second tar outlet also takes thermal and is respectively connected with the 3rd oil inlet and products pot by first.
Second tar outlet takes thermal and is connected with the 3rd oil inlet by first, has the following advantages that:The setting
Fractionation tower temperature can effectively be controlled and fractionation tower top cold reflux is provided, improve fractionating column separative efficiency.
The pyrolysis oil gas can derive from the pyrolysis of coal, and other Pintsch process oil gas, shale oil gas etc..
The dust-laden pyrolysis full oil wash system of oil gas that the utility model is provided can obtain the tar light oil of high-quality, the height
Dustiness in the light tar of quality is few, simultaneously because using full oil wash, the wastewater flow rate of generation is few, reduces the place of waste water
Reason difficulty.
Described first takes thermal including any one in steam generator, air cooler, heat exchanger or water cooler or extremely
Few two kinds combination.Typical but non-limiting combination such as steam generator and air cooler, heat exchanger and water cooler, air cooler with
Water cooler.The tar that second tar outlet is produced is recirculated back to fractionating column after steam generator reduces temperature, to enter
The temperature of one step reduction cooling oil gas, and produce tar light oil product.
The chilling tower bottom also set up circulation oil-in, first tar outlet respectively with circulation oil-in and pyrolysis
Unit is connected.Set the circulation oil-in act as effectively prevent chilling bottom of tower heavy oil coking.
The chilling tower also sets up the second oil inlet, and second oil inlet is connected with the second tar outlet.The chilling
Tower sets two oil inlets to improve chilling tower vapour-liquid contacting efficiency.
Level height of the level height of first oil inlet more than the second oil inlet.
Second tar outlet is respectively connected with by pump with the first oil inlet, the second oil inlet and the 3rd oil inlet.
3rd oil inlet is located at fractionating column top, and the cooling oil and gas import is arranged at fractionating column bottom.By the 3rd
The tar that oil inlet enters carries out counter current contacting with cooling oil gas, further removes dust therein.
The system also takes thermal including separator and second, and described second takes thermal is arranged at separation tower top,
The separator sets charging aperture, gas exit, lightweight oil export and wastewater outlet, and the fractionation oil gas vent passes through second
Thermal is taken to be connected with the charging aperture of separator.The system can produce the clean or white and coal gas of high-quality.
The separator can be knockout drum.
The gas exit is connected with the charging aperture of gas compression unit, in order to the storage of coal gas.
Described second takes thermal including any one in cooler, air cooler, steam generator or heat exchanger or extremely
Few two kinds combination.Typical but non-limiting combination such as cooler and air cooler, cooler and steam generator, air cooler with
Heat exchanger.
Compared with prior art, the beneficial effects of the utility model are:
The dust-laden pyrolysis full oil wash system of oil gas that the utility model is provided avoids using water as quenching medium, substantially reduces
The discharge capacity of sewage, reduces sewage disposal difficulty.
The dust-laden pyrolysis full oil wash system of oil gas that the utility model is provided using chilling tower weight oil due to being sprayed to pyrolysis of coal
The method that oil gas is cleaned, the tar light oil of generation is less containing Dust Capacity, and the tar quality for obtaining is higher, and the heavy of generation is burnt
An oily part carries out freshening, improves tar light oil yield.
Brief description of the drawings
Fig. 1 is the structure connection diagram that the dust-laden that embodiment 1 is provided is pyrolyzed the full oil wash system of oil gas.
Wherein:1, chilling tower;2, fractionating column;3, first takes thermal;4, second takes thermal;5, separator;6, the
One pump;7, the second pump;Arrow in figure represents the flow direction of fluid.
Specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment.
Embodiment 1
A kind of dust-laden is pyrolyzed the full oil wash system of oil gas, as shown in Figure 1.The full oil wash system of the dust-laden pyrolysis oil gas includes anxious
Cold tower 1 and fractionating column 2, also take thermal 3 including first;
The bottom of chilling tower 1 sets pending oil and gas import and circulation oil-in, and top sets the first oil inlet and the
Two oil inlets, top sets cooling oil gas vent, and bottom sets the first tar outlet;The level height of first oil inlet is big
In the level height of the second oil inlet;First tar outlet is connected with circulation oil-in and pyrolysis unit respectively;
The bottom of the fractionating column 2 sets cooling oil and gas import, and top sets the 3rd oil inlet, and top sets fractionation oil gas and goes out
Mouthful, bottom sets the second tar outlet;
The cooling oil gas vent is connected with cooling oil and gas import;Second tar outlet passes through the first pump 6 and first
Oil inlet and the second oil inlet are respectively connected with, and second tar outlet also takes thermal 3 and the 3rd by the first pump 6 and first
Oil inlet and storage tank are respectively connected with;
Described first takes thermal 3 including any one in steam generator, air cooler, heat exchanger or water cooler or extremely
Few two kinds combination;
The system also includes separator 5 and second takes thermal 4, and the separator 5 sets charging aperture, coal gas and goes out
Mouth, lightweight oil export and wastewater outlet, the fractionation oil gas vent is by the second charging aperture for taking thermal 4 and separator 5
It is connected;
The separator 5 can be knockout drum;
The gas exit is connected with the charging aperture of gas compression unit;
Described second takes thermal 4 including any one in cooler, air cooler, steam generator or heat exchanger or extremely
Few two kinds combination.
Dust-laden pyrolysis of coal oil gas is washed and high-quality is produced using described dust-laden pyrolysis oil gas full oil wash system
Light tar process it is as follows:
Dust-laden pyrolysis of coal oil gas is entered in chilling tower 1 by pending oil and gas import from the bottom of chilling tower 1, the bottom of fractionating column 2
The circulation tar of generation enters in chilling tower 1 by being arranged at first oil inlet and the second oil inlet at the top of chilling tower 1, waits to locate
Reason oil gas carries out counter current contacting cooling with circulation tar, and the dust-laden heavy oil of condensation is taken out from the first tar outlet through the second pump 7
Go out, a part returns to the bottom of chilling tower 1, is partly into pyrolysis unit freshening, the pyrolysis oil gas (cooling oil not being condensed
Gas) from the outflow of the top of chilling tower 1, the bottom of fractionating column 2 is entered into, the circulation tar with the backflow of the top of fractionating column 2 carries out counter current contacting
Cooling, refrigerated separation is carried out from the oil gas of the top of fractionating column 2 outflow again, obtains coal gas, clean or white and waste water, coal gas conveying
To gas compression unit, clean or white is delivered to tank field, a small amount of sewage transport to sewage treatment unit;
Wherein, the tar that the bottom of fractionating column 2 produces is extracted out by the first pump 6, and a part is delivered to chilling as circulation tar
Cooling down high-temperature pyrolysis of coal oil gas in tower 1, remainder point two-way after recycle oil takes thermal cooling heat removal, all the way extremely
Cooling oil is done at the top of fractionating column 2, and product oil to tank field is made all the way.
When using first, the oil that will go into operation introduces the bottom of chilling tower 1 and the bottom of fractionating column 2, and introducing pyrolysis oil gas is after setting up circulation
Can.The dust-laden pyrolysis full oil wash system of oil gas that the utility model is provided avoids using water as quenching medium, greatly reduces dirt
The discharge capacity of water, reduces sewage disposal difficulty;Due to being cleaned to pyrolysis of coal oil gas using heavy oil spray, the lightweight for obtaining is burnt
Oil is less containing Dust Capacity, and the tar quality for obtaining is higher;Part heavy tar carries out freshening, improves tar light oil yield.
Embodiment 2
500-700 DEG C of pyrolysis of coal oil gas is washed using the dust-laden pyrolysis full oil wash system of oil gas described in embodiment 1, specifically
Process is as follows:
500-700 DEG C of dust-laden pyrolysis of coal oil gas is entered in chilling tower 1 by pending oil and gas import from the bottom of chilling tower 1,
The circulation tar that the bottom of fractionating column 2 produces enters chilling by being arranged at first oil inlet and the second oil inlet at the top of chilling tower 1
In tower 1, pending oil gas carries out counter current contacting cooling with circulation tar, and the dust-laden heavy oil of condensation refuels from first and exports warp
Second pump 7 is extracted out, and a part returns to the bottom of chilling tower 1, is partly into pyrolysis unit freshening, the pyrolysis oil not being condensed
Gas (cooling oil gas) enters into the bottom of fractionating column 2 from the outflow of the top of chilling tower 1, and the circulation tar with the backflow of the top of fractionating column 2 is carried out
Counter current contacting is cooled down, and refrigerated separation is carried out again from the oil gas of the top of fractionating column 2 outflow, obtains coal gas, clean or white and waste water,
Coal gas is delivered to gas compression unit, and clean or white is delivered to tank field, a small amount of sewage transport to sewage treatment unit;
Wherein, the tar that the bottom of fractionating column 2 produces is extracted out by the first pump 6, and a part is delivered to chilling as circulation tar
Cooling down high-temperature pyrolysis of coal oil gas in tower 1, remainder is by point two-way, cooling after recycle oil steam generator cooling heat removal
Circulation oil temperature afterwards is 100-300 DEG C, does cooling oil to the top of fractionating column 2 all the way, and product oil to tank field is made all the way.
Applicant's statement, the foregoing is only specific embodiment of the present utility model, but protection model of the present utility model
Enclose and be not limited thereto, person of ordinary skill in the field is it will be clearly understood that any belong to those skilled in the art and exist
In the technical scope that the utility model is disclosed, the change or replacement that can be readily occurred in all fall within protection domain of the present utility model
Within the scope of disclosure.
Claims (10)
1. a kind of dust-laden is pyrolyzed the full oil wash system of oil gas, including chilling tower (1) and fractionating column (2), it is characterised in that the system
Also thermal (3) is taken including first;The chilling tower (1) sets pending oil and gas import, the first oil inlet, cooling oil gas vent
With the first tar outlet;It is burnt that the fractionating column (2) sets cooling oil and gas import, the 3rd oil inlet, fractionation oil gas vent and second
Oil export;The cooling oil gas vent is connected with cooling oil and gas import;Second tar outlet is connected with the first oil inlet, institute
State the second tar outlet and also take thermal (3) by first and be respectively connected with the 3rd oil inlet and products pot.
2. system according to claim 1, it is characterised in that it is described take thermal including steam generator, air cooler, change
In hot device or water cooler any one or at least two combination.
3. system according to claim 1 and 2, it is characterised in that chilling tower (1) bottom also sets up recycle oil and enters
Mouthful, first tar outlet is connected with circulation oil-in and pyrolysis unit respectively.
4. system according to claim 1 and 2, it is characterised in that the chilling tower (1) also sets up the second oil inlet, institute
The second oil inlet is stated to be connected with the second tar outlet.
5. system according to claim 4, it is characterised in that the level height of first oil inlet is more than the second oil-feed
The level height of mouth.
6. system according to claim 4, it is characterised in that second tar outlet by pump and the first oil inlet,
Second oil inlet and the 3rd oil inlet are respectively connected with.
7. system according to claim 1 and 2, it is characterised in that the 3rd oil inlet is located at fractionating column (2) top,
The cooling oil and gas import is arranged at fractionating column (2) bottom.
8. system according to claim 1 and 2, it is characterised in that the system also takes including separator (5) and second
Thermal (4), described second takes thermal (4) is arranged at separation tower top, and the separator (5) sets charging aperture, coal gas and goes out
Mouthful, lightweight oil export and wastewater outlet, the fractionation oil gas vent takes entering for thermal (4) and separator (5) by second
Material mouth is connected.
9. system according to claim 8, it is characterised in that the charging aperture phase of the gas exit and gas compression unit
Even.
10. system according to claim 8, it is characterised in that described second takes thermal (4) includes cooler, air cooling
In device, steam generator or heat exchanger any one or at least two combination.
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CN201621422765.5U CN206295742U (en) | 2016-12-23 | 2016-12-23 | A kind of dust-laden is pyrolyzed the full oil wash system of oil gas |
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CN201621422765.5U CN206295742U (en) | 2016-12-23 | 2016-12-23 | A kind of dust-laden is pyrolyzed the full oil wash system of oil gas |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107596831A (en) * | 2017-09-30 | 2018-01-19 | 济南恒誉环保科技股份有限公司 | A kind of anti-poly- purification technique and system for cracking oil gas |
CN109603376A (en) * | 2019-01-31 | 2019-04-12 | 青岛伊克斯达智能装备有限公司 | A kind of high-temperature oil gas of waste and old rubber thermal cracking and carbon black separation system |
CN110426266A (en) * | 2019-08-16 | 2019-11-08 | 陕西延长石油(集团)有限责任公司 | A kind of dust-laden full constituent oil gas continuous ultrasound with pressure separation sampler and method |
-
2016
- 2016-12-23 CN CN201621422765.5U patent/CN206295742U/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107596831A (en) * | 2017-09-30 | 2018-01-19 | 济南恒誉环保科技股份有限公司 | A kind of anti-poly- purification technique and system for cracking oil gas |
CN107596831B (en) * | 2017-09-30 | 2023-05-30 | 济南恒誉环保科技股份有限公司 | Anti-aggregation purification process and system for pyrolysis oil gas |
CN109603376A (en) * | 2019-01-31 | 2019-04-12 | 青岛伊克斯达智能装备有限公司 | A kind of high-temperature oil gas of waste and old rubber thermal cracking and carbon black separation system |
CN110426266A (en) * | 2019-08-16 | 2019-11-08 | 陕西延长石油(集团)有限责任公司 | A kind of dust-laden full constituent oil gas continuous ultrasound with pressure separation sampler and method |
CN110426266B (en) * | 2019-08-16 | 2021-08-03 | 陕西延长石油(集团)有限责任公司 | Continuous ultrasonic separation sampling device and method for pressurized dusty full-component oil gas |
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