CN1383447A - Coke drun with overhead deflector plate and method using this - Google Patents
Coke drun with overhead deflector plate and method using this Download PDFInfo
- Publication number
- CN1383447A CN1383447A CN01801729A CN01801729A CN1383447A CN 1383447 A CN1383447 A CN 1383447A CN 01801729 A CN01801729 A CN 01801729A CN 01801729 A CN01801729 A CN 01801729A CN 1383447 A CN1383447 A CN 1383447A
- Authority
- CN
- China
- Prior art keywords
- coking tower
- coking
- tower
- deflector plate
- hole
- 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.)
- Pending
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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
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- 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
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B1/00—Retorts
- C10B1/02—Stationary retorts
- C10B1/04—Vertical retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
- C10B27/06—Conduit details, e.g. valves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Coke Industry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
An improved delayed coking unit with at least one coke drum (14) wherein said coke drum comprises a substantially closed interior, a top portion (34) having an aperture (36), an overhead vapor outlet nozzle (38) removably connected to the aperture, and a deflector (40) for deflecting solids and heavy hydrocarbon liquids from exiting said interior of said coke drum through said aperture.
Description
Technical field
The present invention relates to delay coking process.The invention particularly relates to and a kind ofly place in the coking tower top and the deflector plate below overhead vapor outlet nozzle, overflow and turn back to the solid and the heavy hydrocarbon liquid amount of fractionator so that reduce by the outlet nozzle of coking tower.
Background technology
In oil refining process, be used for operational process, heavy hydrocarbon pyrolysis and generate gas, liquid and solid coke to the delayed coking drums of various heavy hydrocarbon material coking.Usually, give the fractionator charging, take out the fractionator base settling then and, cause further pyrolysis at the stove internal heating.The solid coke that is generated is deposited on the inwall of coking tower gradually.In common delayed coking unit, a pair of coking tower is alternately filled and emptying, and wherein the coking raw material is pumped in the coking tower, and another coking tower emptying coke is prepared next and filled circulation.
Follow the steam of this process to discharge by overhead vapor outlet nozzle at the coking tower top.The overhead vapours of discharging from coking tower recharges into fractionator, and they are separated into product stream in fractionator, and unwanted solid and liquid remain in fractionator base.Ideally, from overhead vapor outlet nozzle exhaust vapour only because when more unwanted solid and liquid when coking tower enters fractionator, the efficient of delay coking process becomes lower.In the past, fractionator is periodically closed, and to remove these unwanted solid and fluent materials, successive perhaps is set in fractionator removes technology.
When filling coking tower, observe, along with charging maximization and the coke height in the coking tower by coking tower increase, wish usually and not to blow out solid coke, liquid and foam through overhead vapor outlet nozzle from the top of coking tower.Also observe, when steam left coking tower at a high speed, it was easier to be entrained in the solid and the heavy hydrocarbon liquid of overflowing from overhead vapor outlet nozzle and turn back to fractionator.
And according to the structure of delayed coking system and other parameters, coking tower may move being higher than under the barometric point, has encouraged liquid and solid blows out from vapor-nozzle.
Summary of the invention
The above-mentioned shortcoming of known delay coker inherent in view of existing in the prior art the invention provides new, improved structure, and this structure can be used reliably.Equally, main purpose of the present invention provides a kind of new, improved delayed coking drums, and this tower has the advantage of prior art, but does not have described shortcoming, and this will describe in detail subsequently.
For achieving the above object, the invention provides a kind of deflector plate in the coking tower top.This deflector plate is positioned at overhead vapor outlet nozzle below and spaced away, and the solid and the liquid deflector that flow to nozzle are turned back in the tower, allows steam to discharge from coking tower simultaneously.
Before at least one embodiment of the present invention is explained in detail, should be understood that the CONSTRUCTED SPECIFICATION that the invention is not restricted in this application, also be not limited to open in the following description or component layouts illustrated in the accompanying drawings.The present invention can be other embodiment, and can come into operation in a different manner.And, should be appreciated that the word and the term that adopt at this are for purpose of description, and should be as restriction.Equally, person of skill in the art will appreciate that, present disclosure based on design can be easily as other structures that realize the object of the invention, the design basis of method and system.Therefore, importantly, claim is regarded as being included in these equivalent constructions in this scope, and they do not break away from the spirit and scope of the invention.
Therefore, the purpose of this invention is to provide a kind of new, improved delayed coking unit, this device has some advantage of prior art, has overcome some shortcoming of following prior art usually simultaneously.
Another object of the present invention provides a kind of new, improved delayed coking unit, and this device has reduced the solid and the heavy hydrocarbon drop amount of overflowing and getting back to fractionator from coking tower.
Another object of the present invention has provided a kind of improvement deflector plate that can transform existing delayed coking unit.
Another object of the present invention provides a kind of new, improved delayed coking unit, and this device is a kind of more effective, and durable, reliable structure.
Another object of the present invention provides a kind of new, improved delayed coking unit, and this device makes the input maximization of coking tower, and can not blow out coke, liquid and foam from the coking tower top.
These purposes and other purposes of the present invention together, and novel features of the present invention is pointed out in detail investing open file and become in claims of a part wherein.In order to understand the present invention better, and its operation advantage and specific purpose of realizing by its use, with reference to the accompanying drawing of the preferred embodiments of the present invention of explaining with describe content.
Description of drawings
Fig. 1 is the synoptic diagram of the adaptable delay coking process of the present invention.
Fig. 2 shows according to the present invention the side-view of the partly cut-away of the coking tower that constitutes and deflector plate details.
Fig. 3 show according to another embodiment of the present invention coking tower and the skeleton view of the partly cut-away of conical deflector plate details.
Embodiment
Fig. 1 shows the common coker of simplification, and wherein coking raw material leads to stove 12 from pipeline 10, at the stove internal heating.The layout of Fig. 1 has been used a pair of coking tower, but is to be understood that the present invention can be used for the situation of single tower or multitower.Coking tower 14 and 16 is alternately filled and emptying.When a coking tower is full of solid coke, can take out coke near bottom (common and top) at least.
Overhead vapours from the coking tower that is filled with turns back to coking fractionator 20 through pipeline 18.Recovering liquid is sent into fractionator 20 such as coker gas oil or coking raw material through pipeline 22.The cat head wet gas current is discharged from fractionator 20 through pipeline 24, and the intermediate liquid cut is discharged through pipeline 26 and 28.Unwanted solid and heavy hydrocarbon liquid 30 are discharged through pipeline 32 from the bottom of fractionator 20, and lead to stove.Can make other improvement to coking process within the scope of the invention.
In detail with reference to accompanying drawing, Fig. 2 especially, coking tower 14 comprise one be essentially columniform middle portion and have can be near the tops 34 in the hole 36 of coking tower 14 inside.Overhead vapor outlet nozzle 38 preferably is releasably attached on the hole 36, leads to fractionator 20 (not shown in Fig. 2) through outlet line 18.Though size can change, in a preferred embodiment, the diameter of outlet nozzle can be in the scope of about 24 to 30 inches (61 to 76cm).
For clarity sake, Fig. 2 local excision.The present invention has added deflector plate 40, and this deflector plate is usually below coking tower 14 is built in hole 36 and spaced apart, and is and suspended from overhead vapor outlet nozzle 38.Deflector plate 40 is releasably attached on the overhead vapor outlet nozzle 38 by installing mechanism 42 usually.In one embodiment, deflector plate 40 is preferably in overhead vapor outlet nozzle 38 belows and hangs 1 to 10 foot.The example of erecting device is carriage, bolt, silk thread, hook, screw etc.Therefore, after pulling down overhead vapor outlet nozzle, can pull out deflector plate.
In one embodiment, the circular slab that deflector plate 40 is preferably made by metal or other suitable materials has the diameter that is enough to coverage hole 36 roughly but can passes hole 36 when taking out overhead vapor outlet nozzle 38 from coking tower 14.So the diameter of described plate is slightly smaller than the diameter in hole.
Another preferred embodiment of deflector plate 40 is to be roughly conical deflector plate 44, and as shown in Figure 3, wherein the apex end 46 of this cone is towards overhead vapor outlet nozzle 36.The central point in hole roughly aligns with described apex end.
(not shown) in another embodiment, deflector plate can be the forms of a pair of swash plate that links together.
In each embodiment, the steam of effusion is forced to along a zigzag path.In operational process, be transported at the raw material of stove internal heating and carry out pyrolysis in the coking tower.Steam in tower rises towards outlet.Drop and solid particulate will impinge upon on the deflector plate and in the tower that falls back.Simultaneously, steam will be walked around deflector plate and discharge from outlet.
Should be understood that the present invention can easily transform existing coking tower.As a rule, deflector plate can utilize fastening piece to hang under the overhead vapor outlet nozzle such as bolt.
Because observe, leave easier entrained solids and heavy hydrocarbon liquid under the situation of coking tower at steam at a high speed and overflow, so the present invention can produce higher-quality product or allow high-speed cruising.
Although described the present invention with reference to the accompanying drawings, should be appreciated that except that this illustrate and propose, can in the spirit and scope of the invention, make other improvement.Therefore, should be appreciated that and the invention provides a kind of new, improved delayed coking unit.People can change each parts described herein and combination of elements, operation and layout, and do not break away from the spirit and scope of the invention that claims limit.
So, the invention provides a kind of coking tower that is used for delayed coking unit, wherein said coking tower comprises:
Basically Bi He inside;
The top of described tower has a hole of running through this top;
Be connected in the overhead vapor outlet nozzle in described hole; And
Be used for deflection and pass through the solid of described hole discharge and the deflector plate of heavy hydrocarbon liquid from the described inside of described coking tower.
Claims (15)
1. coking tower that is used for delayed coking unit, wherein said coking tower comprises:
Basically Bi He inside;
The top of described tower has a hole of running through this top;
Be connected in the overhead vapor outlet nozzle in described hole; And
Be used for deflection and pass through the solid of described hole discharge and the deflector plate of heavy hydrocarbon liquid from the described inside of described coking tower.
2. coking tower as claimed in claim 1 is characterized in that described deflector plate removably is connected under the described hole.
3. coking tower as claimed in claim 2 is characterized in that described deflector plate is detachably connected on the described overhead vapor outlet nozzle.
4. coking tower as claimed in claim 3 is characterized in that, described deflector plate is dimensioned to and is fit to pass described hole.
5. coking tower as claimed in claim 1 is characterized in that, described deflector plate is the planar metal sheet.
6. coking tower as claimed in claim 1 is characterized in that described deflector plate forms a cone, and this cone has the center, described hole that is positioned at described coking tower and towards the summit in described hole.
7. coking tower as claimed in claim 1 is characterized in that, described deflector plate is positioned at the described coking tower distance at least one foot in described hole (30.5cm) and locates.
8. coking tower as claimed in claim 1 is characterized in that, described deflector plate is positioned at the described hole of described coking tower distance and is no more than 10 feet (3.05m) and locates.
9. one kind is reduced the method that solid or heavy hydrocarbon liquid are overflowed from coking tower, this coking tower has top with holes, be connected in the overhead vapor outlet nozzle in described hole and be used for solid that deflection discharges through described hole from the described inside of described coking tower and the device of heavy hydrocarbon liquid, and described method comprises step:
Hydrocarbon feed is imported in the described coking tower;
Make described coking tower exhaust through described hole; And
By being departed from from described hole, described solid and heavy hydrocarbon liquid reduce the solid and the heavy hydrocarbon liquid amount of discharging from described coking tower.
10. method as claimed in claim 9 is characterized in that described inflector assembly is removably disposed under the described hole.
11. method as claimed in claim 10 is characterized in that, described inflector assembly is detachably connected on the described overhead vapor outlet nozzle.
12. method as claimed in claim 9 is characterized in that, described inflector assembly comprises a flat board.
13. method as claimed in claim 9 is characterized in that, described inflector assembly comprises that one has the cone on the summit of pointing to described hole.
14. one kind is reduced the method that solid or heavy hydrocarbon liquid are overflowed from coking tower, this coking tower has top with holes and is connected in the overhead vapor outlet nozzle in described hole, and described method comprises:
Hydrocarbon feed is imported in the described coking tower;
Make described coking tower exhaust through described hole; And
Described solid and liquid hydrocarbon are impinged upon on the interior deflector plate of described tower, overflow from described coking tower to stop described solid and hydrocarbon liquid.
15. the method that minimizing solid as claimed in claim 14 or heavy hydrocarbon liquid are overflowed is characterized in that described deflector plate is a planar metal plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21143800P | 2000-06-13 | 2000-06-13 | |
| US60/211,438 | 2000-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1383447A true CN1383447A (en) | 2002-12-04 |
Family
ID=22786925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01801729A Pending CN1383447A (en) | 2000-06-13 | 2001-06-07 | Coke drun with overhead deflector plate and method using this |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20020117389A1 (en) |
| JP (1) | JP2004503658A (en) |
| CN (1) | CN1383447A (en) |
| AU (1) | AU2001265427A1 (en) |
| BR (1) | BR0106726A (en) |
| CA (1) | CA2382283A1 (en) |
| MX (1) | MXPA02001551A (en) |
| MY (1) | MY133973A (en) |
| WO (1) | WO2001096495A1 (en) |
| ZA (1) | ZA200201088B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2364492A (en) * | 1941-05-31 | 1944-12-05 | Max B Miller & Co Inc | Method of coking and cracking petroleum residues or the like |
| US3816084A (en) * | 1970-04-16 | 1974-06-11 | Exxon Research Engineering Co | Cokeless coker with recycle of coke from gasifier to heater |
| DD154612A1 (en) * | 1980-11-21 | 1982-04-07 | Manfred Gross | METHOD FOR CERTAINING HYDROCARBONS AFTER BLOWING TECHNOLOGY |
| US4549934A (en) * | 1984-04-25 | 1985-10-29 | Conoco, Inc. | Flash zone draw tray for coker fractionator |
| US4621724A (en) * | 1984-09-13 | 1986-11-11 | Foster Wheeler Energy Corporation | Fractionator having reduced product vapor condensation in the flash zone |
| US4801402A (en) * | 1985-11-12 | 1989-01-31 | Texaco Inc. | Partial oxidation process |
| US4816136A (en) * | 1986-05-27 | 1989-03-28 | Exxon Research And Engineering Company | Low severity fluid coking |
| US5645711A (en) * | 1996-01-05 | 1997-07-08 | Conoco Inc. | Process for upgrading the flash zone gas oil stream from a delayed coker |
| US5827403A (en) * | 1996-07-10 | 1998-10-27 | Citgo Petroleum Corporation | Method of designing and manufacturing a delayed coker drum |
-
2001
- 2001-06-04 US US09/873,561 patent/US20020117389A1/en not_active Abandoned
- 2001-06-07 JP JP2002510618A patent/JP2004503658A/en active Pending
- 2001-06-07 MX MXPA02001551A patent/MXPA02001551A/en unknown
- 2001-06-07 WO PCT/US2001/040875 patent/WO2001096495A1/en active Application Filing
- 2001-06-07 AU AU2001265427A patent/AU2001265427A1/en not_active Abandoned
- 2001-06-07 CN CN01801729A patent/CN1383447A/en active Pending
- 2001-06-07 CA CA002382283A patent/CA2382283A1/en not_active Abandoned
- 2001-06-07 BR BR0106726-5A patent/BR0106726A/en not_active IP Right Cessation
- 2001-06-12 MY MYPI20012745 patent/MY133973A/en unknown
-
2002
- 2002-02-07 ZA ZA200201088A patent/ZA200201088B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2382283A1 (en) | 2001-12-20 |
| WO2001096495A1 (en) | 2001-12-20 |
| JP2004503658A (en) | 2004-02-05 |
| MXPA02001551A (en) | 2003-07-21 |
| BR0106726A (en) | 2002-04-30 |
| MY133973A (en) | 2007-11-30 |
| ZA200201088B (en) | 2003-07-25 |
| WO2001096495A8 (en) | 2002-03-07 |
| US20020117389A1 (en) | 2002-08-29 |
| AU2001265427A1 (en) | 2001-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |