CN203437111U - Anti-coking cyclone separation device of multi-section riser reactor - Google Patents
Anti-coking cyclone separation device of multi-section riser reactor Download PDFInfo
- Publication number
- CN203437111U CN203437111U CN201320346184.8U CN201320346184U CN203437111U CN 203437111 U CN203437111 U CN 203437111U CN 201320346184 U CN201320346184 U CN 201320346184U CN 203437111 U CN203437111 U CN 203437111U
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- China
- Prior art keywords
- cyclone separator
- oil gas
- settler
- coking
- riser
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- 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.)
- Expired - Lifetime
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- 238000004939 coking Methods 0.000 title claims abstract description 39
- 238000000926 separation method Methods 0.000 title abstract description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 abstract description 19
- 238000004523 catalytic cracking Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 80
- 230000008569 process Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004231 fluid catalytic cracking Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses an anti-coking cyclone separation device of a multi-section riser reactor, which belongs to the field of a post reaction system of a multi-section riser catalytic cracking device. The anti-coking cyclone separation device at least comprises: the device comprises a coarse cyclone separator, an oil-gas collecting cylinder, a top cyclone separator, an oil-gas collecting pipe and a rectifying grating. Through the anti-coking cyclone separation device, gas-solid rapid separation can be carried out on oil gas at the outlet of the multi-section riser reactor and oil gas and catalyst in the settler, and gas in the settler can be rapidly led out, so that the over-cracking reaction of the reacted oil gas is reduced, the effect of separating the oil gas and the catalyst is further improved, the inner wall of the settler and the outer wall of the cyclone separator are coked less or even not, and the long-period stable operation of the multi-section riser catalytic cracking device is ensured. The structure is simple and compact, the occupied space is small, the anti-coking effect is good, and the application prospect is wide. The method is suitable for a post-reaction system of a multi-section riser catalytic cracking device.
Description
Technical field
The utility model relates to the rear reaction system field of multistage hoisting pipe catalytic cracking unit, particularly a kind of anti-coking cyclone separator of multistage hoisting pipe reactor.
Background technology
Fluid catalytic cracking is one of main light materialization of heavy oil process of China petroleum refining industry, is the main processes of gasoline production, and more than 75% gasoline of China carrys out catalytic cracking.
The core of catalytic cracking unit is riser reactor, and raw material contacts, reacts with catalyst in riser reactor.In prior art, the reaction oil gas of catalyst and generation out enters thick cyclone separator from riser later, the catalyst going out through thick cyclonic separation enters stripping section bottom by spin material leg, isolated reaction oil gas enters top cyclone separator, through top cyclone separator, further remove the catalyst carrying in reaction oil gas, after purifying, reaction oil gas is delivered to downstream.
In realizing process of the present utility model, inventor finds that prior art at least exists following problem:
Since last century the eighties in order to make full use of limited petroleum resources, widen catalytically cracked material source, China has developed RFCC, heavy oil is (containing reduced crude, decompression residuum and distillate are mixed decompression residuum) larger with distillate nature difference, so there is a series of technical barrier in process, the reaction of heavy oil catalytically cracking equipment, fractionating system coking is the key that restriction multistage hoisting pipe catalytic cracking unit long-period stable operation obtains larger economic benefit, especially the coking problem in settler, to refinery, brought very large puzzlement.
The oil gas rising due to a large amount of reaction oil gas, stripping section and anti-scorch steam etc. are full of in settler, and in settler, dilute phase space is huge, internals is many, flow velocity is low, the oil gas time of staying is long, relatively static place is that the position, the particularly reaction time of multistage hoisting pipe catalytic cracking reaction specification requirement of the easiest coking is short, has more increased the possibility of coking in settler.
Problem for long, easy coking of the oil gas time of staying in settler in solution catalytic cracking unit, occurred that some derive coking device fast for oil gas in reacting-settler, but, existing anti-coking cyclone separator and settler ubiquity structure relative complex, take up room large, the undesirable deficiency that waits of the anti-scorch effect of settler, affects application prospect.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of anti-coking cyclone separator of multistage hoisting pipe reactor.The problem that solves interior long, the easy coking of the oil gas time of staying of settler in catalytic cracking unit, makes reactor outlet oil gas and settler gas separated fast with catalyst, guarantees catalytic cracking unit long-period stable operation.Described technical scheme is as follows:
A kind of anti-coking cyclone separator of multistage hoisting pipe reactor, at least comprise: one section of riser reactor, two sections of riser reactors, thick cyclone separator, oil gas set cylinder, top cyclone separator, oil gas concetrated pipe, flow straightening grid, settler, stripping section, connecting rod, this anti-coking cyclone separator at least comprises: thick cyclone separator, oil gas set cylinder, top cyclone separator, oil gas concetrated pipe, flow straightening grid; Described anti-coking cyclone separator and one section of riser reactor, two sections of riser reactors, settler, stripping section, connecting rods form the anti-coking cyclone separator of multistage hoisting pipe reactor; Described settler bottom and described stripping section top are connected; In described settler, be provided with described thick cyclone separator, described oil gas set cylinder, described top cyclone separator, described oil gas concetrated pipe, in described oil gas set cylinder, be provided with described flow straightening grid, described flow straightening grid connects described oil gas concetrated pipe; In described settler, centre is provided with the described oil gas set cylinder of setting, it is inner that described oil gas concetrated pipe upper end is inserted into described oil gas set cylinder, described top cyclone separator is arranged on a side of described oil gas set cylinder, and described thick cyclone separator is connected on the sidewall of described oil gas set cylinder bottom; Described one section of riser and described two sections of riser reactors are connected on the sidewall of described settler, and it is inner to enter described settler, and end connects with described thick cyclone separator.
Particularly, described oil gas set cylinder top is by described connecting rod and nut and settler top attachment.
Further, described oil gas concetrated pipe is an elongated tubular, and extends to described flow straightening grid top, and described oil gas set cylinder is stretched out in described oil gas concetrated pipe lower end, and apart from 1～5 meter of the material level in described stripping section.
Particularly, described thick cyclone separator is at least two, is distributed in described settler, and each thick cyclone separator at least comprises separator body, slightly revolves riser, dipleg.
Further, described separator body slightly revolves on the sidewall that riser is connected in described oil gas set cylinder bottom by described, wherein a separator body connects described one section of leg outlet, another root separator body connects described two sections of riser reactors outlet, and the dipleg of described thick cyclone separator stretches into described stripping section top.
Particularly, described top cyclone separator is at least one, and described top cyclone separator at least comprises inlet tube, pushes up and revolve riser, dipleg.
Further, the inlet tube on cyclone separator top, described top is communicated with described oil gas set cylinder top, and described top is revolved riser and stretched out by described settler top, and cyclone separator bottom, described top is provided with described dipleg, stretches into described stripping section upper space.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By anti-coking cyclone separator, oil gas and catalyst in multistage hoisting pipe reactor outlet oil gas and settler can be carried out to gas-solid separated and gas in settler is derived fast fast, reduce the cracking reaction of crossing of reaction oil gas, further improve the effect of oil gas and catalyst separation, make the few not even coking of coking of settler inwall and cyclone separator outer wall, guarantee multistage hoisting pipe catalytic cracking unit long-period stable operation.Be applicable to the rear reaction system of multistage hoisting pipe catalytic cracking unit.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the anti-coking cyclone separator structural representation of the multistage hoisting pipe reactor that provides of the utility model embodiment.
In figure, each symbol represents that implication is as follows:
1 one sections of riser reactors;
2 two sections of riser reactors;
3 thick cyclone separators, 3.1 separator bodies, 3.2 slightly revolve riser, 3.3 diplegs;
4 oil gas set cylinders;
5 top cyclone separators, 5.1 inlet tubes, riser, 5.3 diplegs are revolved in 5.2 tops;
6 oil gas concetrated pipes;
7 flow straightening grids;
8 settlers;
9 stripping sections;
10 connecting rods.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Shown in Figure 1, the utility model embodiment provides a kind of anti-coking cyclone separator of multistage hoisting pipe reactor, at least comprises: one section of riser reactor 1, two sections of riser reactors 2, thick cyclone separator 3, oil gas set cylinder 4, top cyclone separator 5, oil gas concetrated pipe 6, flow straightening grid 7, settler 8, stripping section 9, connecting rod 10 etc.; Wherein, described anti-coking cyclone separator at least comprises: thick cyclone separator 3, oil gas set cylinder 4, top cyclone separator 5, oil gas concetrated pipe 6, flow straightening grid 7.Described anti-coking cyclone separator is conducive to further improve the effect of oil gas and catalyst separation.
Particularly, as preferably, described settler 8 connects with stripping section 9; In described settler 8, be provided with thick cyclone separator 3, oil gas set cylinder 4, top cyclone separator 5, oil gas concetrated pipe 6; In described oil gas set cylinder 4, be provided with flow straightening grid 7, flow straightening grid 7 connects oil gas concetrated pipe 6; Described thick cyclone separator 3 connects one section of riser reactor 1, two sections of riser reactors 2; Form thus the anti-coking cyclone separator of multistage hoisting pipe reactor.
Particularly, described one section of riser reactor 1, two sections of riser reactors 2 are fluidisation hoisting type reactor, and raw material contacts with catalyst therein, when up along riser reactor, reacts.One section of riser reactor 1, two sections of riser reactors 2 enter settler 8 inside, and end connects with thick cyclone separator 3, and most of catalyst separation that slightly cyclone separator 3 carries reaction oil gas with it is opened.Described settler 8 is vertical cylinder structure, connects with the stripping section 9 of cylindrical structure, and the effect of settler 8 is to hold reaction oil gas that the dipleg 3.3 of the oil gas of stripping section 9 interior risings and anti-scorch steam and thick cyclone separator 3 takes out of etc.; The effect of stripping section 9 is the oil gas adsorbing on water vapor removal catalyst and replaces the oil gas between catalyst granules, reduces oil and gas loss and the carbon-burning load that reduces regenerator.
Particularly, described settler 8 is to utilize the difference of gravity to make the equipment of the solid particles sediment in gas, the interior centre of described settler 8 is provided with the oil gas set cylinder 4 of setting, described oil gas set cylinder 4 tops are by connecting rod 10 and nut and settler 8 top attachment, described oil gas concetrated pipe 6 is an elongated tubular, be arranged in settler 8, oil gas concetrated pipe 6 upper ends are inserted into oil gas set cylinder 4 inside, and extend to flow straightening grid 7 tops, oil gas set cylinder 4 is stretched out in oil gas concetrated pipe 6 lower ends, and it is 1～5 meter apart from the material level in stripping section 9, pressure drop is 500～3000Pa.
Particularly, described thick cyclone separator 3 is at least two, is arranged in settler 8, and each thick cyclone separator 3 at least comprises separator body 3.1, slightly revolves riser 3.2, dipleg 3.3 etc., described separator body 3.1 arranges by top slightly revolves on the sidewall that riser 3.2 is connected in oil gas set cylinder 4 bottoms, wherein a separator body 3.1 connects 1 outlet of one section of riser reactor, another root separator body 3.1 connects 2 outlets of two sections of riser reactors, the dipleg 3.3 of thick cyclone separator 3 extends the top of stripping section 9, described one section of riser reactor 1 and two sections of riser reactors 2 are arranged on the sidewall of settler 8, make catalyst under oil gas castering action along one section of riser reactor 1, two sections of riser reactors 2 are up, carry out cracking reaction simultaneously.
Particularly, described top cyclone separator 5 is at least one, is arranged on a side of oil gas set cylinder 4, and top cyclone separator 5 at least comprises inlet tube 5.1, pushes up and revolve riser 5.2, dipleg 5.3 etc.; The inlet tube 5.1 on cyclone separator 5 tops, described top is communicated with oil gas set cylinder 4 tops, the top that cyclone separator 5 tops in top arrange is revolved riser 5.2 and is stretched out by settler 8 tops, deliver to upstream device, cyclone separator 5 bottoms in top arrange dipleg 5.3, extend stripping section 9 upper spaces.
Between the inlet tube 5.1 that slightly revolves riser 3.2 outlets and top cyclone separator 5 due to thick cyclone separator 3, adopted the airtight mode connecting, eliminated the possibility that reaction oil gas enters settler 8, oil gas concetrated pipe 6 is set simultaneously, the reaction oil gas quick collection that the dipleg 3.3 of stripping section 9 rising oil gas, anti-scorch steam and thick cyclone separator 3 is taken out of is introduced oil gas set cylinder 4, shorten the time of staying of oil gas in settler 8, heat cracking reaction obviously reduces.
Related thick cyclone separator 3, the top cyclone separator 5 of the utility model embodiment is prior art, buyable product.
The operation principle of the utility model embodiment:
Reaction oil gas and catalyst enter in thick cyclone separator 3 from one section of riser reactor 1 and two sections of riser reactor 2 entrances, oil gas after thick cyclone separator 3 separation carries a small amount of catalyst and upwards flows along oil gas set cylinder 4, enter the entrance 5.1 of the top cyclone separator 5 in settler 8, by the catalyst carrying in the further separation oil and gas of top cyclone separator 5.
Simultaneously, the reaction oil gas that oil gas concetrated pipe 6 oil gas of collection stripping section 9 interior risings that oil gas set cylinder 4 bottoms arrange and the dipleg 3.3 of anti-scorch steam and thick cyclone separator 3 are taken out of etc., and directly enter oil gas set cylinder 4 through slightly revolving riser 3.1, oil gas is up along oil gas set cylinder 4, by flow straightening grid 7, enter the entrance 5.1 of top cyclone separator 5, after the further separating catalyst particles of top cyclone separator 5, oil gas revolves riser 5.2 by top and leaves settler 8.
In addition, the utility model embodiment also has advantages of, simple and compact for structure, takes up room little, and anti-coking is effective, and application prospect is extensive.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the anti-coking cyclone separator of a multistage hoisting pipe reactor, at least comprise: one section of riser reactor (1), two sections of riser reactors (2), thick cyclone separator (3), oil gas set cylinder (4), top cyclone separator (5), oil gas concetrated pipe (6), flow straightening grid (7), settler (8), stripping section (9), connecting rod (10), it is characterized in that, this anti-coking cyclone separator at least comprises: thick cyclone separator (3), oil gas set cylinder (4), top cyclone separator (5), oil gas concetrated pipe (6), flow straightening grid (7), described anti-coking cyclone separator and one section of riser reactor (1), two sections of riser reactors (2), settler (8), stripping section (9), connecting rod (10) form the anti-coking cyclone separator of multistage hoisting pipe reactor, described settler (8) bottom and described stripping section (9) top are connected, in described settler (8), be provided with described thick cyclone separator (3), described oil gas set cylinder (4), described top cyclone separator (5), described oil gas concetrated pipe (6), in described oil gas set cylinder (4), be provided with described flow straightening grid (7), described flow straightening grid (7) connects described oil gas concetrated pipe (6), the interior centre of described settler (8) is provided with the described oil gas set cylinder (4) of setting, described oil gas concetrated pipe (6) upper end is inserted into described oil gas set cylinder (4) inside, described top cyclone separator (5) is arranged on a side of described oil gas set cylinder (4), and described thick cyclone separator (3) is connected on the sidewall of described oil gas set cylinder (4) bottom, described one section of riser (1) and described two sections of riser reactors (2) are connected on the sidewall of described settler (8), and enter described settler (8) inside, and end connects with described thick cyclone separator (3).
2. the anti-coking cyclone separator of multistage hoisting pipe reactor according to claim 1, is characterized in that, described oil gas set cylinder (4) top is by described connecting rod (10) and nut and settler (8) top attachment.
3. the anti-coking cyclone separator of multistage hoisting pipe reactor according to claim 1, it is characterized in that, described oil gas concetrated pipe (6) is an elongated tubular, and extend to described flow straightening grid (7) top, described oil gas set cylinder (4) is stretched out in described oil gas concetrated pipe (6) lower end, and apart from 1～5 meter of the material level in described stripping section (9).
4. the anti-coking cyclone separator of multistage hoisting pipe reactor according to claim 1, it is characterized in that, described thick cyclone separator (3) is at least two, be distributed in described settler (8), each thick cyclone separator (3) at least comprises separator body (3.1), slightly revolves riser (3.2), dipleg (3.3).
5. the anti-coking cyclone separator of multistage hoisting pipe reactor according to claim 4, it is characterized in that, described separator body (3.1) slightly revolves on the sidewall that riser (3.2) is connected in described oil gas set cylinder (4) bottom by described, wherein a separator body (3.1) connects described one section of riser (1) outlet, another root separator body (3.1) connects described two sections of riser reactors (2) outlet, and the dipleg (3.3) of described thick cyclone separator (3) stretches into described stripping section (9) top.
6. the anti-coking cyclone separator of multistage hoisting pipe reactor according to claim 1, it is characterized in that, described top cyclone separator (5) is at least one, and described top cyclone separator (5) at least comprises inlet tube (5.1), pushes up and revolve riser (5.2), dipleg (5.3).
7. the anti-coking cyclone separator of multistage hoisting pipe reactor according to claim 6, it is characterized in that, the inlet tube (5.1) on described top cyclone separator (5) top is communicated with described oil gas set cylinder (4) top, described top is revolved riser (5.2) and is stretched out by described settler (8) top, described top cyclone separator (5) bottom is provided with described dipleg (5.3), stretches into described stripping section (9) upper space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320346184.8U CN203437111U (en) | 2013-06-17 | 2013-06-17 | Anti-coking cyclone separation device of multi-section riser reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320346184.8U CN203437111U (en) | 2013-06-17 | 2013-06-17 | Anti-coking cyclone separation device of multi-section riser reactor |
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| Publication Number | Publication Date |
|---|---|
| CN203437111U true CN203437111U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320346184.8U Expired - Lifetime CN203437111U (en) | 2013-06-17 | 2013-06-17 | Anti-coking cyclone separation device of multi-section riser reactor |
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| Country | Link |
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| CN (1) | CN203437111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388112A (en) * | 2014-09-22 | 2015-03-04 | 中国石油大学(华东) | Two-stage riser fluid catalytic cracking anti-coking settler |
| CN115746899A (en) * | 2021-09-02 | 2023-03-07 | 中国石油化工股份有限公司 | Reactor and separation system |
-
2013
- 2013-06-17 CN CN201320346184.8U patent/CN203437111U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388112A (en) * | 2014-09-22 | 2015-03-04 | 中国石油大学(华东) | Two-stage riser fluid catalytic cracking anti-coking settler |
| CN104388112B (en) * | 2014-09-22 | 2016-01-27 | 中国石油大学(华东) | A kind of two-stage riser fluid catalytic cracking anti-coking settling vessel |
| CN115746899A (en) * | 2021-09-02 | 2023-03-07 | 中国石油化工股份有限公司 | Reactor and separation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181219 Address after: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee after: CNPC EAST CHINA DESIGN INSTITUTE CO.,LTD. Patentee after: PetroChina Company Limited Address before: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee before: CNPC EAST CHINA DESIGN INSTITUTE Patentee before: PetroChina Company Limited |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
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| CX01 | Expiry of patent term |