CN108325275A - The combined cooling method and combined cooler of high-temperature oil gas - Google Patents
The combined cooling method and combined cooler of high-temperature oil gas Download PDFInfo
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- CN108325275A CN108325275A CN201810217379.XA CN201810217379A CN108325275A CN 108325275 A CN108325275 A CN 108325275A CN 201810217379 A CN201810217379 A CN 201810217379A CN 108325275 A CN108325275 A CN 108325275A
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- Prior art keywords
- temperature
- cooling
- oil gas
- gas
- temperature oil
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- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 239000007789 gas Substances 0.000 claims abstract description 100
- 239000007921 spray Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 11
- 239000013618 particulate matter Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000004227 thermal cracking Methods 0.000 claims abstract description 9
- 239000002737 fuel gas Substances 0.000 claims abstract description 8
- 238000000197 pyrolysis Methods 0.000 claims description 8
- 239000012263 liquid product Substances 0.000 claims description 4
- 238000002386 leaching Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000010920 waste tyre Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 73
- 239000000295 fuel oil Substances 0.000 description 9
- 239000012188 paraffin wax Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000005662 Paraffin oil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
- B01D5/003—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium within column(s)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0036—Multiple-effect condensation; Fractional condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Industrial Gases (AREA)
Abstract
The present invention relates to the cooling means and device field in waste tire thermal cracking processes, disclose a kind of combined cooling method and combined cooler of high-temperature oil gas, and the combined cooling method includes：Dust removal step：High-temperature oil gas after thermal cracking is introduced into cleaner, after detaching the particulate matter in the high-temperature oil gas, obtains dustless high-temperature oil gas；Recirculated water cooling step；Water cooling is carried out to the dustless high-temperature oil gas with the cooling water not less than 50 DEG C, obtains high temperature non-condensable gas；Spraying cooling step：The spray oil that temperature is no more than 50 DEG C is sprayed into the high temperature non-condensable gas, obtains fuel gas, the combined cooling method of the high-temperature oil gas can reduce or even avoid pipeline blockage, to reduce the maintenance cost of cooling equipment.
Description
Technical field
The present invention relates to the cooling means and device field in waste tire thermal cracking processes, more particularly to a kind of high temperature
The combined cooling method and combined cooler of oil gas.
Background technology
In waste tire thermal cracking processes, a large amount of high-temperature oil gas is will produce, is obtained after this part high-temperature oil gas cooling
The higher fuel oil of calorific value.However, high-temperature oil gas product after cooling is mainly two parts：Non-condensable gas and rubber oil.
The main component of rubber oil is petrol and diesel oil, and contains a small amount of tar, paraffin and other impurities.In the existing type of cooling,
It is passed through 20 degree or so of cooling water outside the pipeline often directly flowed through to high-temperature oil gas to be quenched high-temperature oil gas, with to height
Warm oil gas carries out refrigerated separation.
When cooling water cools down high-temperature oil gas, frequent occurrence the problem of be that paraffin and heavy oil are straight under the cooling temperature
It connects and is condensed in pipeline, a small amount of cracking dust brought into high-temperature oil gas in addition causes line clogging, this kind of equipment to generally require
Frequent maintenance down.
Invention content
The purpose of the invention is to overcome the above problem of the existing technology, it is cold to provide a kind of combination of high-temperature oil gas
But the combined cooling method of method and combined cooler, the high-temperature oil gas can reduce or even avoid pipeline blockage, to drop
The maintenance cost of low cooling equipment.
To achieve the goals above, one aspect of the present invention provides a kind of combined cooling method of high-temperature oil gas, the combination
Cooling means includes：
Dust removal step：High-temperature oil gas after thermal cracking is introduced cleaner to obtain after detaching the particulate matter in the high-temperature oil gas
To dustless high-temperature oil gas；
Recirculated water cooling step；Water cooling is carried out to the dustless high-temperature oil gas with the cooling water not less than 50 DEG C, obtaining high temperature can not
Condensed gas；
Spraying cooling step：The spray oil that temperature is no more than 50 DEG C is sprayed into the high temperature non-condensable gas, is obtained flammable
Gas.
Preferably, in the dust removal step, the particulate matter in the high-temperature oil gas is detached using cyclone separator.
Preferably, in the spraying cooling step, the spray oil is using tire pyrolysis oil.
Preferably, before tire pyrolysis oil spray, processing is filtered to the tire pyrolysis oil.
Second aspect of the present invention provides a kind of combined type cooling of the combined cooling method applied to high-temperature oil gas above-mentioned
Device, the combined cooler include cooler ontology, along the direction for flowing into outflow of high-temperature oil gas, the cooler ontology
Have successively
For detaching the particulate matter in the high-temperature oil gas to obtain the dedusting section of dustless high-temperature oil gas；
For carrying out water cooling to the dustless high-temperature oil gas to obtain the cooling section of high temperature non-condensable gas, and,
For spraying spray oil of the temperature no more than 50 DEG C into the high temperature non-condensable gas to obtain the spray of fuel gas
Section is drenched, wherein：
It is provided with cooler pipeline in the cold section, and is respectively communicated to by the entrance and exit of the cooler pipeline described
Dedusting section and the spray section, so that the high-temperature oil gas enters the cooler pipeline and temperature after the dedusting section
Cooling water no more than 50 DEG C carries out heat exchange, and subsequently into the spray section, the liquid product of generation is from the cooler tube
Road is discharged, and the cascade cooler is discharged from the non-condensable gas outlet of the spray section in the fuel gas.
Preferably, the cooler pipeline is set as multiple, and is spaced and is evenly arranged in the cooling section, the cooling
Section also has the cycle water inlet for being respectively used to that cooling water of the temperature no more than 50 DEG C is introduced between the cooler pipeline, with
And the circulating water outlet for the water after heat exchange to be discharged.
Preferably, it is provided with spray head in the spray section.
Through the above technical solutions, the high-temperature oil gas generated in the thermal cracking process of waste tire is generally 400 DEG C extremely
440 DEG C, the cracking dust being mingled in high-temperature oil gas is removed by dust removal step in dedusting section first, is entered in cooling section immediately
Carry out recirculated water cooling；In recirculated water cooling step, the temperature of recirculated cooling water is controlled at 50 DEG C or so, avoid this stage without
Paraffin in dirt high-temperature oil gas and heavy oil condensation；In subsequent spraying cooling step, 50 DEG C or so of spray oil temperature control, and
It is contacted with high temperature non-condensable gas, by the precipitations such as lightweight cracked oil, paraffin, heavy oil in gas, isolated fuel gas.
In this process, other than fuel gas is expelled directly out, remaining liquid being precipitated still is kept after spraying cooling step
At 150 DEG C or so, the bottom that this moieties flows to combined cooler along cooler pipeline is discharged, to cooler pipeline into
The paraffin and heavy oil for being condensate in inner wall of the pipe are taken away in row back flush, to avoid blockage, reduce the maintenance down of equipment at
This.
Description of the drawings
Fig. 1 is a kind of preferred implementation structure chart of combined cooler；
Fig. 2 is the cooler piping diagram in cooling section；
Fig. 3 is to show that high-temperature oil gas import and non-condensable gas export the circumferential position on combined cooler and do
The vertical view of combined cooler.
Reference sign
1- dedusting sections；2- cooling sections；20- cooler pipelines；21- cold water cavities；3- spray sections；4- high-temperature oil gas imports；5- is recycled
Water inlet；6- non-condensable gas exports；8- spray throwers；80- spray heads.
Specific implementation mode
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " typically refers to
Typically refer to all parts phase for direction shown in the drawings or on vertical, vertical or neutral direction
Mutual position relationship describes word.
As illustrated in fig. 1-3, according to a kind of combined cooler of preferred embodiment of the present invention, including cooler sheet
Body, " ontology " referred to herein refer to the entity part of cooler, including the associated connecting structure etc. on shell and shell.It is cold
But device ontology from bottom to top successively include dedusting section 1, cooling section 2 and spray section 3, wherein：It is provided with high temperature oil in dedusting section 1
Gas import 4, the high-temperature oil gas for generating thermal cracking introduce cooler ontology；Be provided in spray section 3 discharge it is flammable
The non-condensable gas outlet 7 of gas, high-temperature oil gas complete high temperature oil from bottom to top intrinsic three sections sequentially through cooler
The refrigerated separation of gas.As shown in Figure 3, in order to avoid high-temperature oil gas impacts fuel gas after cooling, high-temperature oil gas
Import 4 and condensed gas outlet 7 are preferably arranged for interval in the circumferential direction of cooler ontology.
Specifically, it is provided with cyclone separator in dedusting section 1, the high-temperature oil gas flowed into through high-temperature oil gas import 4 is by being somebody's turn to do
The dedusting of cyclone separator, after sloughing the particulate matter (cracking dust) mixed in gas, into cooling section 2.Referring to Fig. 1 and Fig. 2
It is shown, the cooler pipeline 20 of several preferably uniform intervals arrangements, the cooling pipe in cooling section 2 are provided in cooling section 2
Cold water cavity 21 is formed between 20.The dustless high-temperature oil gas come out from the cyclone separator in dedusting section 1 is from cooler pipeline 20
Bottom nozzle flows into.
Cycle water inlet 5 and circulating water outlet 6 are provided on cooling section 2, wherein in the vertical direction, recycle water inlet 5
It is preferably arranged in the lower section of circulating water outlet 6, so that cooling water from bottom to top flow along Fig. 1 by direction shown in filled arrows, into
Go out cold water cavity 21, also, recycles the cooling water temperature that water inlet 5 flows into and control at 50 DEG C or more, to avoid dustless high-temperature oil gas
In paraffin wall built-up is condensed in the cooler pipeline 20.It is highly preferred that flowing velocity and circulating cooling by controlling oil gas
The flow velocity of water so that the leaving water temperature of circulating water outlet 6 is maintained between 65 DEG C to 70 DEG C, avoids heavy oil that wall built-up is precipitated.It is multiple
It can be fixed in the intrinsic cooling section of cooler by devices such as orifice plate, holders between cooler pipeline 20.
Spray section 3 is connected to the top nozzle of cooler pipeline 20.The top of spray section 3 is provided with spray thrower 8 comprising
Spray head 80 and the pipeline that spray oil is conveyed into spray head 80, the temperature of spray oil are not less than 50 DEG C.Specifically, spray oil
It using filtered tire pyrolysis oil, is converted into after droplet by spray head 80 and is contacted with oil gas, the oil gas after spray generates
A large amount of lightweight cracked oil, and by controlling the parameters such as spray rate, the product liquid temperature after spray is preferably controlled 150 DEG C
Left and right, this partial liquid product flow out from cooler pipeline 20, to the inner wall of cooler pipeline 20 heat molten from top to bottom
Solution, the paraffin for the condensed on inner walls that further melts away, and a large amount of heavy oil are precipitated.This operative liquid product is from cooler body bottom portion
Cooler is discharged in slag-drip opening.
Another aspect of the present invention provides a kind of combined cooling method of high-temperature oil gas, which includes：
Dust removal step：High-temperature oil gas after thermal cracking is introduced cleaner to obtain after detaching the particulate matter in the high-temperature oil gas
To dustless high-temperature oil gas；
Recirculated water cooling step；Water cooling is carried out to the dustless high-temperature oil gas with the cooling water not less than 50 DEG C, obtaining high temperature can not
Condensed gas；
Spraying cooling step：The spray oil that temperature is no more than 50 DEG C is sprayed into the high temperature non-condensable gas, is obtained flammable
Gas.
Wherein, above-mentioned step carries out in aforementioned combinatorial formula cooler.Also, preferably using whirlwind point in dust removal step
Dustless high-temperature oil gas is obtained thoroughly to eliminate the particulate matter in high-temperature oil gas to high-temperature oil gas separation dedusting from device.
Spray oil preferably uses filtered tire pyrolysis oil, this part fluid directly to be connect with the oil gas after recirculated water cooling
It touches, forms a large amount of lightweight cracked oils, and reversely flow back in the oil-gas pipeline in recirculated water cooling step, inner wall of the pipe is carried out reversed
It rinses and cools down again, heavy oil is precipitated, melts the paraffin of condensed on inner walls, so that paraffin, heavy oil, lightweight cracked oil and spray oil
It is discharged together from the slag-drip opening of combined cooler bottom, uncondensable combustible oil gas discharge combined cooler is received
Collection.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited thereto.At this
In the range of the technology design of invention, a variety of simple variants, including each particular technique can be carried out to technical scheme of the present invention
Feature is combined in any suitable manner, and in order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No longer separately illustrate.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention
Protection domain.
Claims (7)
1. a kind of combined cooling method of high-temperature oil gas, which is characterized in that the combined cooling method includes：
Dust removal step：High-temperature oil gas after thermal cracking is introduced cleaner to obtain after detaching the particulate matter in the high-temperature oil gas
To dustless high-temperature oil gas；
Recirculated water cooling step；Water cooling is carried out to the dustless high-temperature oil gas with the cooling water not less than 50 DEG C, obtaining high temperature can not
Condensed gas；
Spraying cooling step：The spray oil that temperature is no more than 50 DEG C is sprayed into the high temperature non-condensable gas, is obtained flammable
Gas.
2. the combined cooling method of high-temperature oil gas according to claim 1, which is characterized in that in the dust removal step,
The particulate matter in the high-temperature oil gas is detached using cyclone separator.
3. the combined cooling method of high-temperature oil gas according to claim 2, which is characterized in that in the spraying cooling step
In, the spray oil is using tire pyrolysis oil.
4. the combined cooling method of high-temperature oil gas according to claim 3, which is characterized in that sprayed in the tire pyrolysis oil
Before leaching, processing is filtered to the tire pyrolysis oil.
5. a kind of combined type cooling of combined cooling method applied to the high-temperature oil gas described in any one of claim 1-4
Device, which is characterized in that the combined cooler includes cooler ontology, along the direction for flowing into outflow of high-temperature oil gas, institute
State cooler ontology has successively
For detaching the particulate matter in the high-temperature oil gas to obtain the dedusting section (1) of dustless high-temperature oil gas；
For carrying out water cooling to the dustless high-temperature oil gas to obtain the cooling section (2) of high temperature non-condensable gas, and,
For spraying spray oil of the temperature no more than 50 DEG C into the high temperature non-condensable gas to obtain the spray of fuel gas
Section (3) is drenched, wherein：
It is provided with cooler pipeline (20) in the cold section (2), and passes through the entrance and exit of the cooler pipeline (20) point
It is not connected to the dedusting section (1) and the spray section (3), so that the high-temperature oil gas enters institute after the dedusting section
It states cooling water of the cooler pipeline (20) with temperature no more than 50 DEG C and carries out heat exchange, subsequently into the spray section (3), generate
Liquid product be discharged from the cooler pipeline (20), the fuel gas is exported from the non-condensable gas of the spray section
(7) cascade cooler is discharged.
6. combined cooler according to claim 5, which is characterized in that the cooler pipeline (20) is set as more
It is a, and be spaced and be evenly arranged in the cooling section (2), the cooling section (2), which also has, to be respectively used to the cooler tube
Introduce cycle water inlet (5) of the temperature no more than 50 DEG C of cooling water between road (20), and for the water after heat exchange to be discharged
Circulating water outlet (6).
7. combined cooler according to claim 6, which is characterized in that be provided with spray head in the spray section (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217379.XA CN108325275A (en) | 2018-03-15 | 2018-03-15 | The combined cooling method and combined cooler of high-temperature oil gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217379.XA CN108325275A (en) | 2018-03-15 | 2018-03-15 | The combined cooling method and combined cooler of high-temperature oil gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108325275A true CN108325275A (en) | 2018-07-27 |
Family
ID=62931718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810217379.XA Pending CN108325275A (en) | 2018-03-15 | 2018-03-15 | The combined cooling method and combined cooler of high-temperature oil gas |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433643A (en) * | 2019-08-28 | 2019-11-12 | 中冶华天南京工程技术有限公司 | A kind of highly effective energy-conserving environmental-protecting type chilling tower |
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| CN206902073U (en) * | 2017-05-19 | 2018-01-19 | 无锡市泰新环保科技有限公司 | Tire micelle cracking apparatus |
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2018
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| EP0297420A2 (en) * | 1987-06-30 | 1989-01-04 | Asea Brown Boveri Aktiengesellschaft | Installation for the pyrolysis of waste |
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| CN110433643A (en) * | 2019-08-28 | 2019-11-12 | 中冶华天南京工程技术有限公司 | A kind of highly effective energy-conserving environmental-protecting type chilling tower |
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Effective date of registration: 20211102 Address after: 210000 No. 19, Suyuan Avenue, Jiangning District, Nanjing, Jiangsu Province Applicant after: Everbright green environmental protection technology service (Jiangsu) Co.,Ltd. Address before: 214000 Dongsheng Road West, Chaoyang village, Donggang Town, Xishan District, Wuxi City, Jiangsu Province Applicant before: WUXI TAIXIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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Application publication date: 20180727 |