CN2224205Y - Three-device-in-one reaction regenerating equipment - Google Patents
Three-device-in-one reaction regenerating equipment Download PDFInfo
- Publication number
- CN2224205Y CN2224205Y CN 95210840 CN95210840U CN2224205Y CN 2224205 Y CN2224205 Y CN 2224205Y CN 95210840 CN95210840 CN 95210840 CN 95210840 U CN95210840 U CN 95210840U CN 2224205 Y CN2224205 Y CN 2224205Y
- Authority
- CN
- China
- Prior art keywords
- revivifier
- regeneration equipment
- reaction regeneration
- gas
- solid
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model discloses reaction regenerating equipment used for the catalytic cracking process of petroleum. The utility model integrates three device into integration, a reaction settler is arranged above a first regenerator and a second regenerator, the first regenerator is centered, the second regenerator is below the reaction settler and the first regenerator, and the reaction settler, the first regenerator and the second regenerator are mutually communicated by catalyst conveying pipes which are vertically arranged. The lower part of the first regenerator is provided with a gas-solid distributing device, and the lower side wall or the bottom of the first regenerator is provided with an external warmer which can control the temperature of the first regenerator and enlarge the temperature difference between the first and the second regenerators according to technologic requirement; the gas-solid distributing device has the characteristics of large apertures, low pressure drop and corrosion resistance, and the smoke gas of the second regenerator and little catalyst carried by the smoke gas can be uniformly distributed.
Description
The utility model relates to the nucleus equipment in a kind of petroleum catalytic cracking process, the reaction regeneration equipment of particularly suitable heavy oil fluid catalytic cracking.
The RCC type reaction regeneration equipment of present industrial application, by first revivifier of arranged superposed and second revivifier and one and its reacting-settler that just is arranged in juxtaposition formed.Though it has tangible advantage, can satisfy the requirement on technology and the engineering, following shortcoming is also arranged:
(1) three device overall height is higher, is about 70m, the cost height, and occupation of land is many, produces and the equal inconvenience of maintenance.
(2) first revivifiers and second again between device the temperature difference very little, the easy hydrothermal deactivation of catalyzer can not be given full play to the superiority of two-stage regeneration technology.
The catalytic amount that (3) second regenerator flue gas carry is bigger, is unfavorable for burning of first revivifier, has reduced total coke-burning rate.
Catalyst transport between (4) three devices mostly is inclined tube, is unfavorable for carrying swimmingly catalyzer.
The purpose of this utility model is to provide a kind of compact construction, favorably situated reaction regeneration equipment.It can reduce by three device overall height, reduced investment, occupation of land less, produce easy to maintenance, the superiority that the temperature difference between first revivifier and second revivifier is big again, can give full play to two-stage regeneration technology, the catalytic amount that second revivifier carries is less, be easy to improve total rate of combustion, and the transfer lime of the catalyzer between three devices is easy to carry swimmingly catalyzer.
For achieving the above object, the technical solution adopted in the utility model is; Reacting-settler is last, and first revivifier is placed in the middle, and second revivifier is promptly taked the structural shape of three device one down, and the catalyst transport by vertical layout between three devices is connected.Wherein the stripping stage of reacting-settler is positioned at the dilute phase section of first revivifier.This structural shape both reduced by three devices overall height, reduce investment outlay, reduce occupation of land, produce easy to maintenancely, also improved the transport condition of catalyzer, promptly simplified the loosening and purging system in the traditional catalyst course of conveying.The lower wall or the bottom of first revivifier are provided with external warmer, be used to take away the superfluous heat in first revivifier, control the temperature of first revivifier effectively, strengthen the temperature difference between first revivifier and second revivifier, and under the prerequisite that guarantees the catalyzer non-inactivation, according to the requirement of temperature of reaction and C/O, can control the second revivifier amount of burnt flexibly, make the second revivifier amount of burnt few as far as possible; Also reduced the catalytic amount that second regenerator flue gas carries simultaneously, external warmer can be existing various structural shape, but for the ease of operation and rational in infrastructure, external warmer is the Pneumatic-control type external warmer preferably.The top of the first revivifier distributor pipe of cardinal wind is provided with the gas-solid sparger, offers the hole of larger aperture on it, and the diameter in hole is 10～60mm, is lined with wear resistance lining in the gas-solid sparger.After the gas-solid sparger uniformly distributing of high-temperature oxygen-enriched flue gas that second revivifier produces through this wide aperture low pressure drop erosion resistant, enter the high-temperature zone at first revivifier dense bed middle part, participation is burnt, and has both improved the first revivifier scorching speed, can reduce by the first revivifier main air consumption again.Two revivifiers only are provided with the shared cyclone system of a cover in first revivifier, one, two again flue gas all enter the cigarette machine and carry out energy recovery through this, flow process is simple, has saved a large amount of pipelines, reasonable energy utilization is convenient.The structural shape and the distributor pipe of cardinal wind of gas-solid sparger are similar, can be ring tube or branch pipe, also can adopt diaphragm structure.
The advantage of the utility model three device one reaction regeneration equipment is: owing to adopted the structural shape of three device one, compact equipment, three device overall height are reduced to about 55mm, and first, second regenerator flue gas series connection enters the cigarette machine, not only energy recovery, produce easy to maintenance, but also saved a large amount of pipelines, and compare with the same device of equal scale to take up an area of and lack, can save investment 10～20%; The first revivifier bottom is provided with external warmer, has strengthened the temperature difference between first, second revivifier, has reduced the hydrothermal deactivation of catalyzer, has also reduced the catalyst entrainment amount in second regenerator flue gas simultaneously, thereby has improved the coke-burning rate of first revivifier; Vertical catalyst transport between three devices has been simplified loosening, the purging system in traditional catalyst transport process.
Below in conjunction with accompanying drawing, further specify the utility model, wherein by specific embodiment:
Fig. 1～Fig. 4 is four kinds of typical structure synoptic diagram of the present utility model.
Fig. 5～Fig. 7 is three kinds of typical structure synoptic diagram of gas-solid sparger.
Fig. 1 is a kind of structural shape of the present utility model, belongs to three device one reaction regeneration equipment of second revivifier (4) arranged off-centre.It is made up of top reacting-settler (1), middle first revivifier (2) of three device one, second revivifier (4) that is positioned at the bottom, wherein reacting-settler (1) is coaxial with first revivifier (2), second revivifier (4) departs from this axle, and the three becomes one.The structural shape of reacting-settler (1) is identical with the popular response settling vessel, be that dilute-phase leanphase fluidized bed is provided with cyclonic separator (1-1), and by settling section (1-2), stripping stage (1-3) formation, there is the reclaimable catalyst transfer lime (1-4) of vertical layout stripping stage (1～3) lower end.The bottom of first revivifier (2) (lower wall or bottom) is furnished with external warmer (3), the bottom is provided with reclaimable catalyst sleeve pipe (2-1), distributor pipe of cardinal wind (2-2) is arranged again and again at the bottom, the dilute phase section is arranged cyclonic separator (2-4), and distance 0.5～1.0m place, distributor pipe of cardinal wind (2-2) top again and again is horizontally disposed with gas-solid sparger (2-3).The stripping stage (1-3) of reacting-settler (1) and reclaimable catalyst transfer lime (1-4) are all in the inside of first revivifier (2), and wherein reclaimable catalyst transfer lime (1-4) stretches in the reclaimable catalyst sleeve pipe (2-1), and the two is coaxial.Be connected by half regenerated catalyst (4-2) between first revivifier (2) and second revivifier (4).The upper end of half regenerated catalyst (4-2) is bell mouth shape, and extend into again and again the top of distributor pipe of cardinal wind (2-2), and its lower end is inserted into the bottom of second revivifier (4), and overcoat half regenerated catalyst sleeve pipe (4-1).The top of second revivifier (4) is provided with one or more gas-solid two-phase standpipe (4-3), and the upper end of this gas-solid two-phase standpipe (4-3) is connected with gas-solid sparger (2-3).One end of regenerated catalyst (5) is connected with the middle and lower part of second revivifier (4), the other end is connected with riser reactor (6), and the top of riser reactor (6) is connected from device (1-1) or thick level cyclonic separator (1-1) with the quick wind of reacting-settler (1).Be furnished with plug valve to be generated (8) and regeneration plug valve (9) in reclaimable catalyst sleeve pipe (2-1), the half regenerated catalyst sleeve pipe (4-1) respectively.Regenerated catalyst (5) is provided with guiding valve (7).
The working condition of present embodiment is: reclaimable catalyst enters reclaimable catalyst transfer lime (1-4) behind stripping stage (1-3) stripping of reacting-settler (1), inflow catalyst sleeve pipe (2-1) again, and flow to the dense bed of first revivifier (2) from its upper end, the oxygen enrichment flue gas that comes at second revivifier (4) and again and again under the effect of the main air of distributor pipe of cardinal wind (2-2), burn, the catalyzer after burning is called half regenerated catalyst.Half regenerated catalyst flows into half regenerated catalyst sleeve pipe (4-1) through half regenerated catalyst (4-2), be fluidized state and flow into second revivifier (4) from the top of half regenerated catalyst sleeve pipe (4-1), from two air mains (4-4) and further burning under the main air effect that comes again, claim regenerated catalyst through empyreumatic catalyzer.Most of regenerated catalyst enters riser reactor (6) through regenerated catalyst (5), fully contact with the stock oil that comes by nozzle and to impel stock oil to react rapidly, catalyzer enters reacting-settler (1) with oil gas, after cyclonic separator (1-1) separates, oil gas is discharged from the top of reacting-settler (1), and the catalyzer that separates is called reclaimable catalyst.The stripping stage (1-3) that reclaimable catalyst enters reacting-settler (1) circulates repeatedly, the flue gas that second revivifier (4) produces is only carried a spot of regenerated catalyst secretly and is entered gas-solid sparger (2-3) through gas-solid two-phase standpipe (4-3), through behind the uniform distribution, oxygen in the flue gas participates in burning, with flue gas carry and the lower reclaimable catalyst of the high-temperature regenerated catalyst that comes and temperature mix and improved the empyreumatic combustion initiation temperature of first revivifier (2), accelerated scorching speed.The flue gas mixing that first revivifier (2), second revivifier (4) produce goes out first revivifier (2) through cyclonic separator (2-4), enters the cigarette machine and carries out energy recovery or directly enter chimney.
Fig. 2 is an another kind of structural shape of the present utility model, the three device one reaction regeneration equipment that belong to second revivifier (4) arranged concentric, its structure and working condition and above-mentioned first embodiment are basic identical, different is: second revivifier (4), reacting-settler (1), first revivifier (2) three devices are coaxial, reclaimable catalyst transfer lime (1-4) then departs from this axle, and it has the service advantages of first embodiment and the constitutional features of other parts.
Fig. 3 is an another structural shape of the present utility model, the three device one reaction regeneration equipment that belong to size tube second revivifier (4) arranged off-centre, its structure and working condition and above-mentioned second embodiment are basic identical, and different is: second revivifier (4) housing is made up of the small diameter cylinder of the large diameter cylinder on top, middle transition section and bottom.It because the flue gas linear speed of second revivifier (4) large diameter cylinder is low, has flue gas and carries regeneration catalyzing dosage than first, second embodiment advantage still less except that service advantages with second embodiment and constitutional features.This structural shape is fitted especially and is easy to large-scale catalyzer cracking unit.
Fig. 4 is the 4th a kind of structural shape of the present utility model, the another pattern that belongs to three device one reaction regeneration devices of size tube second revivifier (4) arranged off-centre, its structure and working condition and above-mentioned the 3rd embodiment are basic identical, different is, the large diameter cylinder of second revivifier (4) is bigger with respect to aforementioned the 3rd embodiment, even can be identical with the close phase section of first revivifier (2) diameter, this structural shape makes reclaimable catalyst sleeve pipe (2-1) longer, and plug valve to be generated (8) valve rod is longer.The last end structure of reclaimable catalyst sleeve pipe (2-1) is identical with the 3rd embodiment, and its top is connected with dividing plate (10).Dividing plate (10) has the effect of separating first revivifier (2) and second revivifier (4), offer the macropore of φ 10～60mm simultaneously on it, play the effect of aforementioned gas-solid two-phase standpipe (4-3) and gas-solid sparger (2-3), second revivifier (4) flue gas and the catalyzer that carries thereof macropore thus evenly rise to first revivifier (2).Another difference is, half regenerated catalyst (4-2) is positioned at outside the three device housings, and the one end is connected with the lower wall of first revivifier (2), and the other end is connected with the lower wall of second revivifier (4).It is except that the constitutional features of service advantages with the 3rd embodiment and other parts, because the diameter of the large diameter cylinder of second revivifier (4) is bigger, flue gas linear speed is lower in it, and the entrained regenerated catalyst of flue gas still less.
Work as combustion, the utility model is not limited to above-mentioned four kinds of patterns, also comprises the three device one reaction regeneration equipment that other structure is close.Such as, half regenerated catalyst (4-2) can be arranged on three device inside, it is the top that its upper end extend into again and again distributor pipe of cardinal wind (2-2), first, second revivifier (2) is passed in the lower end, (4) are inserted into second revivifier (4) bottom, and overcoat half regenerated catalyst sleeve pipe (4-1), be provided with regeneration plug valve (9) in this sleeve pipe (4-1).Needs according to structural arrangement, half regenerated catalyst (4-2) can also be arranged on the outside of three devices, be that its upper end is connected with first revivifier (2) lower wall, the lower end is connected with the lower wall of second revivifier (4), and on transfer lime (4-2) guiding valve (7) is set.In addition, gas-solid sparger (2-3) can be a whole ring tube structure as shown in Figure 5, it also can be split ring tube structure as shown in Figure 6, promptly form by two semicircle endless tubes, can also be branch tubular construction or other similar structure as shown in Figure 7, all have the macropore of φ 10～60mm on the gas-solid sparger (2-3) of aforementioned various structures.
Claims (19)
1. three device one reaction regeneration equipment that are used for the petroleum catalytic cracking process, it is that second revivifier (4) by first revivifier (2) on top and bottom constitutes; The dilute phase section of first revivifier (2) is provided with cyclonic separator (2-4), and the bottom is provided with again and again main air stringing (2-2); The lower disposed of second revivifier (4) has two distributor pipe of cardinal wind (4-4) again, and an end of regenerated catalyst (5) is connected with the middle and lower part of second revivifier (4), and the other end is connected with riser reactor (6); Be connected by half regenerated catalyst (4-2) between second revivifier (2) and second revivifier (4), it is characterized in that: the top of first revivifier (2) also is provided with reacting-settler (1), reacting-settler (2) is made up of settling section (1-2), stripping stage (1-3) and the cyclonic separator (1-1) that is arranged on dilute-phase leanphase fluidized bed, there is catalyst transport to be generated (1-4) stripping stage (1-3) lower end, the bottom overcoat reclaimable catalyst sleeve pipe (2-1) of reclaimable catalyst transfer lime (1-4) is provided with plug valve to be generated (8) in the reclaimable catalyst sleeve pipe (2-1); Establish two phase gas-solid distribution device (2-3) in first revivifier (2), external warmer (3) is established in the bottom; Wherein, settling section (1-2), the stripping stage (1-3) of reacting-settler (1) are coaxial with first revivifier (2), and reclaimable catalyst transfer lime (1-4) and reclaimable catalyst sleeve pipe (2-1), plug valve to be generated (8) are coaxial.
2. three device one reaction regeneration equipment as claimed in claim 1 is characterized in that, described reclaimable catalyst transfer lime (1-4) and reacting-settler (1), first revivifier (2) are coaxial, second revivifier (4) and described axis runout.
3. three device one reaction regeneration equipment as claimed in claim 1 is characterized in that, described second revivifier (4) and reacting-settler (1), first revivifier (2) are coaxial, reclaimable catalyst transfer lime (1-4) and described axis runout.
4. three device one reaction regeneration equipment as claimed in claim 1 is characterized in that, the axis of described second revivifier (4), reclaimable catalyst transfer lime (1-4) all departs from mutually with the axis at reacting-settler (1) and first revivifier (2) place.
5. three device one reaction regeneration equipment as claimed in claim 4 is characterized in that, described second revivifier (4) housing is made up of the large diameter cylinder on top, the middle small diameter cylinder of entering the section of crossing and bottom.
6. three device one reaction regeneration equipment as claimed in claim 1, it is characterized in that, described second revivifier (4), reclaimable catalyst transfer lime (1-4) all with the axis coaxle at reacting-settler (1) and first revivifier (2) place, and described second revivifier (4) housing by the top large diameter cylinder, middlely advance the section of crossing and the bottom small diameter cylinder is formed, described half regenerated catalyst carries the upper end of (4-2) to be connected with the next wall of first revivifier (2), the lower end is connected with the next wall of second revivifier (4), and it is provided with guiding valve (7).
7. as the described three device one reaction regeneration equipment of arbitrary claim in the claim 1 to 5, its special card is that described external warmer (3) is Pneumatic-control type external warmer (3).
8. three device one reaction regeneration equipment as claimed in claim 7, it is characterized in that, the upper end of described half regenerated catalyst (4-2) is positioned at the bottom of first revivifier (2), pass the bottom of first revivifier (2) and the top of second revivifier (4), reach the bottom of second revivifier (4) always, the bottom overcoat half regenerated catalyst sleeve pipe (4-1) of described half regenerated catalyst (4-2), be provided with regeneration plug valve (9) in the described sleeve pipe (4-1), the upper end of described second revivifier (4) has one or more to be attached thereto logical gas-solid two-phase standpipe (4-3), and the upper end of this standpipe (4-3) is connected with gas-solid sparger (2-3).
9. three device one reaction regeneration equipment as claimed in claim 7, it is characterized in that, the upper end of described half regenerated catalyst (4-2) is connected with the next wall of first revivifier (2), the lower end with second again the lower wall of device (4) be connected, described half regenerated catalyst (4-2) is provided with guiding valve (7).
10. three device one reaction regeneration equipment as claimed in claim 8 is characterized in that, offer the macropore of φ 10～60mm on the described gas-solid sparger (2-3).
11. three device one reaction regeneration equipment as claimed in claim 10 is characterized in that described gas-solid sparger (2-3) is positioned at again and again the top 0.5～1.0m of distributor pipe of cardinal wind (2-2).
12. three device one reaction regeneration equipment as claimed in claim 11 is characterized in that described gas-solid sparger (2-3) is a ring tube.
13. three device one reaction regeneration equipment as claimed in claim 11 is characterized in that described gas-solid sparger (2-3) is the dendroid pipe.
14. three device one reaction regeneration equipment as claimed in claim 9 is characterized in that, offer the macropore of φ 10～60mm on the described gas-solid sparger (2-3).
15. three device one reaction regeneration equipment as claimed in claim 14 is characterized in that described gas-solid sparger (2-3) is positioned at again and again the top 0.5～1.0m of distributor pipe of cardinal wind (2-2).
16. three device one reaction regeneration equipment as claimed in claim 15 is characterized in that described gas-solid sparger (2-3) is a ring tube.
17. three device one reaction regeneration equipment as claimed in claim 15 is characterized in that, described gas-solid distribution (2-3) is the dendroid pipe.
18. three device one reaction regeneration equipment as claimed in claim 6 is characterized in that described external warmer (3) is Pneumatic-control type external warmer (3).
19. three device one reaction regeneration equipment as claimed in claim 18, it is characterized in that, the structural shape of described gas-solid sparger (2-3) is dividing plate (10), described dividing plate (10) is the upper cover of second revivifier (4), it both separated first revivifier (2) and second revivifier (4), play the effect of gas-solid sparger (2-3) again, offer the macropore of φ 10～60mm on the described dividing plate (10), these macropores play the effect of gas-solid two-phase standpipe (4-3) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210840 CN2224205Y (en) | 1995-05-17 | 1995-05-17 | Three-device-in-one reaction regenerating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210840 CN2224205Y (en) | 1995-05-17 | 1995-05-17 | Three-device-in-one reaction regenerating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224205Y true CN2224205Y (en) | 1996-04-10 |
Family
ID=33861452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95210840 Expired - Lifetime CN2224205Y (en) | 1995-05-17 | 1995-05-17 | Three-device-in-one reaction regenerating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224205Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351017C (en) * | 2004-09-28 | 2007-11-28 | 中国石油化工股份有限公司 | Flue gas stripping device |
| CN101705109B (en) * | 2009-07-07 | 2013-01-16 | 山东金诚重油化工有限公司 | Method and device for catalytic cracking of heavy oil |
-
1995
- 1995-05-17 CN CN 95210840 patent/CN2224205Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351017C (en) * | 2004-09-28 | 2007-11-28 | 中国石油化工股份有限公司 | Flue gas stripping device |
| CN101705109B (en) * | 2009-07-07 | 2013-01-16 | 山东金诚重油化工有限公司 | Method and device for catalytic cracking of heavy oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104826558B (en) | Paste state bed reactor and response system for preparing ethylene by selective hydrogenation of acetylene | |
| CN101274245B (en) | Annular space air-lift gas-solid loop flow reactor | |
| CN104277881B (en) | Dry-process deslagging fluidized bed gasification reaction device | |
| CN100341614C (en) | Organosilicon fluidized bed reactor | |
| CN201223790Y (en) | Multifunctional riser catalytic cracking test device | |
| WO2020143140A1 (en) | Separation system for slurry bed reactor | |
| CN105018129A (en) | Device and method for producing gasoline from methyl alcohol by fluidized bed | |
| CN101259398A (en) | Device for improving pipe and gas-solid circumfluence bed coupling reaction | |
| CN103341341A (en) | Fluidized bed reactor for preparing butadiene | |
| CN203355710U (en) | Rapid fluidized bed reactor for producing butadiene by butylene oxydehydrogenation | |
| CN2224205Y (en) | Three-device-in-one reaction regenerating equipment | |
| CN104593088A (en) | Coal gasification reaction device and method | |
| CN2455355Y (en) | High performance reproduced catalyst stripping apparatus | |
| WO2010006465A1 (en) | Production device for carbon disulfide by circulating fluid bed | |
| CN204522947U (en) | For paste state bed reactor and the reaction system of preparing ethylene by selective hydrogenation of acetylene | |
| CN103788993A (en) | Catalytic cracking unit | |
| CN201007626Y (en) | Gas controlled serial type external heat exchanger | |
| CN202754958U (en) | Catalytic cracking testing apparatus | |
| CN101711962B (en) | Catalytic conversion stripper | |
| CN1319643A (en) | apparatus for producing low carbon olefines by high-tmep. catalyzing contact cracking from heavy petroleum hydrocarbon | |
| CN208944069U (en) | A kind of Novel suspending bed hydroprocessing reactor | |
| CN2205827Y (en) | Two-section regenerator for descending catalytic cracking lift pipe | |
| CN2791050Y (en) | Fluidized catalytic-cracking lift pipe reactor | |
| CN200939377Y (en) | Organosilyl fluidized-bed reactor | |
| CN203653494U (en) | Catalytic cracking stripper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |