CN201704280U - Catalytic cracking reactor - Google Patents
Catalytic cracking reactor Download PDFInfo
- Publication number
- CN201704280U CN201704280U CN2010202116137U CN201020211613U CN201704280U CN 201704280 U CN201704280 U CN 201704280U CN 2010202116137 U CN2010202116137 U CN 2010202116137U CN 201020211613 U CN201020211613 U CN 201020211613U CN 201704280 U CN201704280 U CN 201704280U
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- CN
- China
- Prior art keywords
- catalyst
- reactor
- cracker
- catalytic cracking
- exit pipe
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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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- 238000004523 catalytic cracking Methods 0.000 title abstract description 20
- 239000003054 catalyst Substances 0.000 claims abstract description 51
- 239000002994 raw material Substances 0.000 abstract description 13
- 238000005336 cracking Methods 0.000 abstract description 9
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 16
- 230000035484 reaction time Effects 0.000 description 13
- 239000000295 fuel oil Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- 239000003921 oil Substances 0.000 description 7
- 238000010517 secondary reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 239000000571 coke Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004231 fluid catalytic cracking Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a catalytic cracking reactor, which comprises a reactor cylinder 3, a spray nozzle 4, a horizontal outlet pipe 1, a catalyst inlet 8 and a reactor bottom 9. The spray nozzle 4 penetrating through the reactor bottom 9 enters the reactor cylinder 3; the spray nozzle 4 is connected with a raw material conveying pipe 5; and the catalyst inlet 8 is communicated with a regeneration catalyst conveying pipeline. The catalytic cracking reactor solves the problem of secondary cracking in catalytic cracking engineering in short contact time in the prior art.
Description
Technical field
The utility model belongs under the situation that does not have hydrogen, the catalytic cracking field of hydrocarbon ils, particularly a kind of heavy oil catalytic cracking reaction device.
Background technology
At present, there is following problem in employed riser fluid catalytic cracking in the petroleum chemical industry catalytic cracking process: the length that promotes tubular reactor has determined the long reaction time (generally about 4s) of raw material.The long reaction times has also been aggravated the secondary reaction of raw material cracking resultant when improving the raw material per pass conversion, make the reacted gas gain in yield, thereby has reduced the yield of vapour, diesel oil distillate; In addition, owing to being higher than the catalyzer linear speed, the oil gas linear speed in the lifting tubular reactor cause the landing of knot Pd/carbon catalyst to form back-mixing, thus, promoting tubular type reactor feedstocks nozzle top, the catalyzer of knot charcoal landing contacts with initial stage cracking resultant once more with atomized feed, thereby worsened the product distribution, reduced catalyzer raw material cracked product selectivity.
The related millisecond catalytic cracking technology characteristics of U.S. Pat P:5462652 are: in reacting-settler, catalyzer flows and is directed downwards, and the raw material injection direction of nozzle becomes 90 ° of angles with the mobile direction of catalyzer, and reacting-settler connects cyclonic separator outward.The raw material injection direction of nozzle is over against cyclone inlet.Thereby raw material passes catalyst stream and directly enters the millisecond contact catalysis cracking that realizes raw material and catalyzer outward in the cyclonic separator that reacting-settler connects, and reaches and suppresses raw material cracked secondary reaction, reduces dry gas, coke yield, improves the purpose of product distribution.But this reaction formation can make reaction oil gas be diffused into the conversion zone of entire reaction settling vessel, makes reaction oil gas and the catalyzer that does not enter cyclonic separator continue reaction, causes the secondary cracking of reaction oil gas, has reduced the effect that millisecond catalytic cracking improvement product distributes.
Therefore, the short reaction time catalyst cracker that adopts relative closure to strengthen the catalytic cracking of heavy oil short reaction time reduce dry gas (even comprising liquefied gas) and coke yield to the product distribution and the product property that improve catalytic cracking reaction, reduce plant energy consumption, have important effect.
The utility model content
The utility model has proposed a kind of heavy oil catalytic cracking reaction device in order to solve the secondary cracking problem of the reaction oil gas that the reaction oil gas diffusion causes in the prior art, and purpose is the secondary cracking problem that solves in the millisecond catalytic cracking engineering.
A kind of catalyst cracker of this described utility model, contain reactor shell 3, nozzle 4, Horizontal Exit pipe 1, catalyst inlet 8 and reactor bottom 9, nozzle 4 passes reactor bottom 9 and enters in the reactor shell 3, nozzle 4 is connected with feed line 5, and catalyst inlet 8 is communicated with regenerated catalyst.
A kind of catalyst cracker of this described utility model, Horizontal Exit 1 is connected with cyclonic separator 2 inlets.
A kind of catalyst cracker of described utility model, reactor bottom 9 is provided with perforate 7, and its perforated area accounts for 5～20%, preferred 10～15% of reactor bottom 9 total areas.
A kind of catalyst cracker of described utility model, catalyst inlet 8 are arranged on reactor shell 3 tops, and its diameter is identical with the diameter of regenerated catalyst.Reactor shell 3 length H are 1～3 meter, the length L of Horizontal Exit pipe 1 is 1～5 meter, the distance h of the medullary ray of Horizontal Exit pipe 1 and nozzle 4 outlets is 0.5～1.0 meter, the diameter of Horizontal Exit pipe 1 is identical with cyclonic separator 2 inlet diameters, and the utility model reactor may command raw material reaction time is between 0.01～1.0s.
A kind of heavy oil catalytic cracking reaction device of described utility model is arranged in the settling vessel, and cyclonic separator 2 exports and is connected the settling vessel connection, and settling vessel is communicated with revivifier, and revivifier is communicated with regenerated catalyst.
A kind of heavy oil catalytic cracking reaction device of described utility model is a cylinder mode, the liner insulating and wearing-resistant lining, and Horizontal Exit pipe (1) is a cylindrical structure, the liner insulating and wearing-resistant lining.
Utility model has been owing to adopted the structure of reactor of short contacting time, thereby suppresses the generation of the secondary reaction of resultant, the reacted gas productive rate is reduced, thereby improved the yield of vapour, diesel oil distillate; This heavy oil short reaction time catalyst cracker is simple in structure, easy to operate, is applicable to the device of heavy oil short reaction time catalytic cracking.
Compared with prior art: adopt the utility model, have following beneficial effect:
Short reaction time catalyst cracker, the reaction times can effectively be controlled between 0.01～1.0s, thereby suppresses the secondary reaction of raw material cracking resultant, the reacted gas productive rate is reduced, thereby has improved the yield of vapour, diesel oil distillate; The structure of reactor of this heavy oil short reaction time catalytic cracking is simple, easy to operate, is applicable to the device of heavy oil short reaction time catalytic cracking.
Description of drawings
Below in conjunction with accompanying drawing a kind of short reaction of the utility model time catalyst cracker is described in further detail.
Fig. 1 is the synoptic diagram of the utility model catalyst cracker structure
Fig. 2 is the utility model catalyst cracker bottom opening synoptic diagram
Fig. 3 is the application site synoptic diagram of the utility model catalyst cracker in heavy oil short reaction time catalytic cracking unit.
1. Horizontal Exit pipe, 2. cyclonic separator, 3. reactor shell, 4. nozzle, 5. feed line, 6. stock oil, 7. reactor bottom 9 is provided with perforate, 8. catalyst inlet, 9. reactor bottom, 10. revivifier, 11. tubular types are burnt device, 12. regenerated catalyst, 13. regeneration gass.
Embodiment
As shown in Figure 1, the utility model catalyst cracker is made up of reactor shell 3, nozzle 4, Horizontal Exit pipe 1, catalyst inlet 8 and reactor bottom 9 and cyclonic separator 2, nozzle 4 passes reactor bottom 9 and enters in the reactor shell 3, nozzle 4 is connected with feed line 5, catalyst inlet 8 is communicated with regenerated catalyst, and the dipleg of cyclonic separator enters in the reclaimable catalyst dense bed of reacting-settler.
Fig. 2 is the vertical view of the utility model catalyst cracker Fig. 1, and the perforate situation of reactor bottom 9 is described.
As shown in Figure 3, the utility model catalyst cracker is arranged on the catalyst settler inside of heavy oil catalytically cracking equipment, and catalyst inlet 8 links to each other with regenerated catalyst, and device is burnt with tubular type in the settling vessel bottom.Experiment shows that the utility model can effectively be controlled raw material and catalyzer when different horizontal section lengths the contact reacts time is 0.01～1.0s.
The utility model is simple in structure, and is easy to operate, is easy to realize in full scale plant, is applicable to the device of heavy oil short reaction time catalytic cracking.
Claims (7)
1. catalyst cracker, contain reactor shell (3), nozzle (4), Horizontal Exit pipe (1), catalyst inlet (8) and reactor bottom (9), it is characterized in that: nozzle (4) passes reactor bottom (9) and enters in the reactor shell () 3, nozzle (4) is connected with feed line (5), and catalyst inlet (8) is communicated with regenerated catalyst.
2. according to the described catalyst cracker of claim 1, it is characterized in that: Horizontal Exit pipe (1) is connected with cyclonic separator (2) inlet, and Horizontal Exit pipe (1) is identical with cyclonic separator (2) inlet.
3. according to the described catalyst cracker of claim 1, it is characterized in that: reactor bottom (9) is provided with perforate (7), and its perforate (7) area accounts for 5～20% of reactor bottom (9) total area.
4. according to the described catalyst cracker of claim 1, it is characterized in that: its perforate (7) area accounts for 10～15% of reactor bottom (9) total area.
5. according to the described catalyst cracker of claim 1, it is characterized in that: catalyst inlet (8) is arranged on reactor shell (3) top, its diameter is identical with the diameter of regenerated catalyst, reactor shell (3) length is 1～3 meter, the length of Horizontal Exit pipe (1) is 1～5 meter, and the distance h of the medullary ray of Horizontal Exit pipe (1) and nozzle (4) outlet is 0.5～1.0 meter.
6. according to the described catalyst cracker of claim 1, it is characterized in that: catalyst cracker is arranged in the catalyst settler, cyclonic separator (2) exports and is connected the settling vessel connection, and settling vessel is communicated with revivifier, and revivifier is communicated with regenerated catalyst.
7. according to the described catalyst cracker of claim 1, it is characterized in that: catalyst cracker is a cylinder mode, the liner insulating and wearing-resistant lining, and Horizontal Exit pipe (1) is a cylindrical structure, the liner insulating and wearing-resistant lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202116137U CN201704280U (en) | 2010-06-02 | 2010-06-02 | Catalytic cracking reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202116137U CN201704280U (en) | 2010-06-02 | 2010-06-02 | Catalytic cracking reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704280U true CN201704280U (en) | 2011-01-12 |
Family
ID=43441434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202116137U Expired - Lifetime CN201704280U (en) | 2010-06-02 | 2010-06-02 | Catalytic cracking reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201704280U (en) |
-
2010
- 2010-06-02 CN CN2010202116137U patent/CN201704280U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Patentee after: China Petrochemical Group Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group Patentee before: China Petrochemical Group Corp. |
|
| ASS | Succession or assignment of patent right |
Owner name: SINOPEC LUOYANG PETROCHEMICAL ENGINEERING CORPORAT Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20130326 Free format text: FORMER OWNER: SINOPEC LUOYANG PETROCHEMICAL ENGINEERING CORPORATION Effective date: 20130326 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100728 CHAOYANG, BEIJING TO: 471003 LUOYANG, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130326 Address after: 471003 Zhongzhou West Road, Henan, China, No. 27, No. Patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Luoyang Petrochemical Engineering Corporation /SINOPEC |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |