CN2471402Y - Regenerator for fluid bed catalyst monomer - Google Patents
Regenerator for fluid bed catalyst monomer Download PDFInfo
- Publication number
- CN2471402Y CN2471402Y CN 00268317 CN00268317U CN2471402Y CN 2471402 Y CN2471402 Y CN 2471402Y CN 00268317 CN00268317 CN 00268317 CN 00268317 U CN00268317 U CN 00268317U CN 2471402 Y CN2471402 Y CN 2471402Y
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- dividing plate
- lower floor
- single device
- upper strata
- utility
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Abstract
The utility model discloses a fluidized bed catalyst single device regenerative equipment in which the single device dense phase segment is provided with an upper diaphragm 3 and lower diaphragm 4. The opening ratio of the upper diaphragm 3 is from 80 to 85 percent while the opening ratio of the lower diaphragm is from 85 to 90 percent. A main air distributor 5 is arranged on the bottom of the regenerator. The utility model has realized the regeneration of the three grade countercurrent poor oxygen of the upper, middle and lower of the single device dense phase segment. The regenerated catalyst contains lower carbon which can be lower than 0.1 percent, meanwhile, the main wind single consumption can be reduced lower than the 10(Nm<3>/kg coke).
Description
The utility model belongs to the FCC reclaim equiment, is particularly suitable for doing the RFCC reclaim equiment.
The reclaim equiment of present industrial application has: single device regeneration, two device two-stage regenerations, fast bed regeneration, two device two-phase up-flow regenerations etc., the technology relevant with the utility model is the regeneration of single device, REGENMAX technology that NPRA in 1999 can announce is developed jointly by Kellogg and Mobil company that relevant especially is.
The REGENMAX technical characterstic is, adds a baffle plate at the close phase section of regenerator suitable position, and the percent opening of baffle plate is greater than 90%, close phase section is divided into upper and lower two parts, realized two-stage regeneration, the obvious like this back-mixing that has alleviated close phase section has satisfied technology and engine request.But bubble is still very big in its dense bed, and the catalyst back-mixing is also very serious, causes the deficiency that regeneration effect is bad and the main air consumption is big.
The utility model purpose is to provide three grades of single device reclaim equiments that a kind of regenerated catalyst carbon containing is low, the main air consumption is little.
The technical solution of the utility model is: in the close phase section of single device, be horizontally disposed with upper strata dividing plate and lower floor's dividing plate, close phase section is divided into three sections of I, II, III, three sections volume ratio V from top to bottom
I: V
II: V
III=1: 0.9～1.6: 1.7～2.1.Upper strata dividing plate percent opening 80～85%, lower floor's dividing plate percent opening is 85～90%.Be provided with the main air distributor in regenerator bottoms.
Can also (II section) set up a main air distributor in the stage casing between the last lower clapboard according to the utility model, make main air divide upper and lower two-layer supply.
The utility model has been realized the close phase section of single device upper, middle and lower three stage countercurrent oxygen deprivations regeneration.Through on FCCU, having experimental results show that following remarkable advantage:
(1) the utility model dividing plate divides two-layer layout up and down, and percent opening is big end down.Bubble volume is dwindled, and the dense bed Density Distribution is more even, has significantly alleviated the catalyst back-mixing, makes catalytic amount that flue gas carries still less.
(2) the utility model has two kinds of schemes to the regenerator air feed, can select flexibly according to different operating modes, so that the main air consumption is as far as possible little.
(3) to contain charcoal lower for the utility model regenerated catalyst, can reach below 0.1%, and the main air unit consumption also can be low to moderate 10 (NM simultaneously
3/ Kg Jiao) below.
The utility model is applicable to different process such as FCC, ROP, HCC, CPP, is particularly suitable for doing the regenerator of RFCC.
Describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing and drawing explanation:
A kind of typical structure schematic diagram of accompanying drawing 1 the utility model reclaim equiment.
The another kind of structural representation of accompanying drawing 2 the utility model reclaim equiments.
A kind of structural representation of accompanying drawing 3 the utility model dividing plates.
The another kind of structural representation of accompanying drawing 4 the utility model dividing plates.
As shown in Figure 1, the housing 1 of reclaim equiment of the present utility model is a cylinder, is horizontally disposed with upper strata dividing plate 3 and lower floor's dividing plate 4 in the close phase section, and close phase section is divided into three sections of I, II, III, three sections volume ratio V from top to bottom
I: V
II: V
III=1: 0.9～1.6: 1.7～2.1, the percent opening of upper strata dividing plate 3 is 80～85%, and the percent opening of lower floor's dividing plate 4 is 85～90%, and distributor pipe of cardinal wind 5 is established in the reclaim equiment bottom, and lower floor's dividing plate 4 is above distributor pipe of cardinal wind 5.Upper strata dividing plate 3 is below regeneration standpipe 2.
Working condition of the present utility model is such shown in the accompanying drawing 1: reclaimable catalyst enters the close phase section top of reclaim equiment through regeneration standpipe 2, downwards successively through upper strata dividing plate 3 and lower floor's dividing plate 4, its main air is through distributor pipe of cardinal wind 5, being piston flow moves upward, successively through the effect of lower floor's dividing plate 4 and upper strata dividing plate 3, destroy bubble, made catalyst distribution more even, reduced back-mixing.Above-mentioned gas-solid two phase countercurrent flow contact reduces the regenerated catalyst carbon containing through three grades of regeneration, and the main air unit consumption reduces simultaneously.
The main difference point of the utility model reclaim equiment shown in accompanying drawing 2 and the accompanying drawing 1:
Set up a main air distributor 6 above lower floor's dividing plate 4, realize upper and lower two-layer air feed, lower floor's wind supply quantity accounts for 70～100% of total blast volume, and the upper strata wind supply quantity accounts for 0～30% of total blast volume.According to the ratio of wind supply quantity about the operating mode different adjustment, can optimize the distribution of main air, improve the utilization rate of oxygen, further reduce the main air unit consumption.
Another difference is that sleeve pipe 7 is established in the lower end of regeneration standpipe 2, and the opening 8 of sleeve pipe 7 is between upper strata dividing plate 3 and lower floor's dividing plate 4, and reclaimable catalyst after sleeve pipe 7 distributes, enters the stage casing dense bed between upper strata dividing plate 3 and the lower floor's dividing plate 4 from regeneration standpipe 2.Setting like this is owing to the air quantity from sleeve pipe 7 is far longer than the air quantity that carries from regeneration standpipe 2 catalyst shown in the accompanying drawing 1, helps the air pocket of dividing plate 3 destructions in upper strata from the big air quantity formation of sleeve pipe 7.
In structure of the present utility model shown in the accompanying drawing 1, also can above lower floor's dividing plate 4, set up a main air distributor 6.In structure of the present utility model shown in the accompanying drawing 2, also can only establish bottom main air distributor 5.These all can realize the purpose of this utility model.
Accompanying drawing 3 has provided the structural representation of a kind of the utility model dividing plate 3 and 4, and it is a network structure, with the specification of supported underneath plate 10, the percent opening of adjustable number joint dividing plate.
Accompanying drawing 4 has provided the structural representation of another kind of the utility model dividing plate 3 and 4, and it is a gridiron.
The dividing plate of other structure as long as satisfy the requirement of the utility model to percent opening, all can be used for the utility model.
Claims (5)
1, a kind of fluid catalyst list device reclaim equiment is characterized in that: in the close phase section of single device, be horizontally disposed with upper strata dividing plate (3) and lower floor's dividing plate (4), close phase section is divided into three sections of I, II, III, three sections volume ratio V from top to bottom successively
I: V
II: V
III=1: 0.9～1.6: 1.7～2.1, the percent opening of upper strata dividing plate (3) is 80～85%, and the percent opening of lower floor's dividing plate (4) is 85～90%, and regenerator bottoms lower floor dividing plate (4) below is provided with main air distributor 5.
2, single device reclaim equiment according to claim 1 is characterized in that: be provided with main air distributor 6 between upper strata dividing plate (3) and lower floor's dividing plate (4).
3, single device reclaim equiment according to claim 1 and 2 is characterized in that: sleeve pipe (7) is established in regeneration standpipe (2) lower end, and the opening (8) of sleeve pipe (7) is positioned between upper strata dividing plate (3) and the lower floor's dividing plate (4).
4, single device reclaim equiment according to claim 1 and 2 is characterized in that: upper strata dividing plate (3) and/or lower floor's dividing plate (4) are network structure.
5, single device reclaim equiment according to claim 1 and 2 is characterized in that: upper strata dividing plate (3) and/or lower floor's dividing plate (4) are cell structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00268317 CN2471402Y (en) | 2000-12-29 | 2000-12-29 | Regenerator for fluid bed catalyst monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00268317 CN2471402Y (en) | 2000-12-29 | 2000-12-29 | Regenerator for fluid bed catalyst monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471402Y true CN2471402Y (en) | 2002-01-16 |
Family
ID=33621948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00268317 Expired - Lifetime CN2471402Y (en) | 2000-12-29 | 2000-12-29 | Regenerator for fluid bed catalyst monomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471402Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184692B (en) * | 2005-05-25 | 2010-09-08 | 株式会社吴羽 | Continuous operation type active charcoal producing apparatus and process |
-
2000
- 2000-12-29 CN CN 00268317 patent/CN2471402Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184692B (en) * | 2005-05-25 | 2010-09-08 | 株式会社吴羽 | Continuous operation type active charcoal producing apparatus and process |
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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 |
Expiration termination date: 20101229 Granted publication date: 20020116 |