CN203295445U - Regeneration catalyst distributor - Google Patents
Regeneration catalyst distributor Download PDFInfo
- Publication number
- CN203295445U CN203295445U CN2013202743245U CN201320274324U CN203295445U CN 203295445 U CN203295445 U CN 203295445U CN 2013202743245 U CN2013202743245 U CN 2013202743245U CN 201320274324 U CN201320274324 U CN 201320274324U CN 203295445 U CN203295445 U CN 203295445U
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- inclined tube
- cap
- access slot
- catalyst
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Abstract
The utility model discloses a regeneration catalyst distributor which is arranged in a position of a regeneration inclined tube and is characterized by comprising a receiving trough and a receiving cap, wherein the receiving trough is arranged in the middle lower position of the inner wall of the outlet of the regeneration inclined tube and can be used for conveying catalyst to a reasonable region, and the receiving cap is arranged at the connecting part of the outlet of the regeneration inclined tube and a regenerator so as to reduce the flow cross section and increase the outlet running rate of the catalyst. Therefore, the catalyst has higher momentum and is evenly distributed in the bed layer of the regenerator.
Description
Technical field
The utility model relates to a kind of petrochemical complex catalytic cracking field, particularly a kind of old catalyst distrbutor.
Background technology
For fluid catalytic cracking (FCC), install, reclaimable catalyst in riser reactor is after settling vessel stripping stage steam stripped, by inclined tube to be generated, enter revivifier and carry out coke burning regeneration, catalyzer after regeneration is delivered to riser reactor again by regenerator sloped tube, with stock oil, react, thereby complete the reaction regeneration working cycle.The quality of catalyst regeneration situation directly has influence on the reaction condition of regenerated catalyst and stock oil.If reclaimable catalyst is maldistribution in revivifier, will cause regenerating inhomogeneous, can not recover the regenerated catalyst activity fully, also be easy to cause internal regenerator the phenomenons such as local superheating to occur.Therefore, the reclaimable catalyst uniformly distributing is very important.At present, in the most of fluidized catalytic cracker revivifier of China, all be provided with the catalyzer distribution device, to realize the even regeneration of reclaimable catalyst.
Current old catalyst distrbutor structure is comparatively complicated, and need to carry wind, as Chinese patent CN1519296A and US Patent No. 0019228 and the disclosed catalyst dispenser of US0147412, all need to carry wind that reclaimable catalyst is transported to out to the agent mouth, this can produce extra power consumption, and all very complicated, the difficult enforcement, difficult in maintenance of its structure.The disclosed a kind of catalyst dispenser of Chinese patent CN202175652U, its divider and inclined tube concentric to be generated, the divider front exit is vertical with sea line, this type divider very flexible, the reclaimable catalyst drop point is single.The purpose of this utility model just is to provide a kind of simple in structure, old catalyst distrbutor of not needing to carry wind.
The utility model content
In order to overcome reclaimable catalyst maldistribution in prior art, can not evenly regenerate, easily form the problems such as short circuit, local superheating, the utility model provides a kind of old catalyst distrbutor, make it in the situation that on original device, change and try one's best littlely, optimize reclaimable catalyst and distribute.
For addressing the above problem, the technical scheme that the utility model adopts is:
A kind of old catalyst distrbutor, described divider to be generated is arranged at inclined tube to be generated outlet position, it is characterized in that: described divider to be generated is by access slot and connect cap and form, described access slot is arranged on upper/lower positions in inclined tube outlet inwall to be generated, can, by catalyst transport to rationally regional, in inclined tube outlet to be generated, with the revivifier link position, be connected to cap, can reduce actual internal area, improve the catalyst outlet velocity of flow, make catalyzer have higher momentum, and be distributed in regenerator bed uniformly.
A kind of old catalyst distrbutor of the utility model, it is further characterized in that: for preventing high speed catalyzer docking groove and connecing the abrasion of cap, both sides add wear resistance lining at access slot and inside and outside connecing cap.
A kind of old catalyst distrbutor of the utility model, it is further characterized in that: D is inclined tube diameter to be generated, D1 is the access slot diameter, and its size is according to inclined tube diameter to be generated and be arranged on the difference of inclined tube to be generated outlet position and difference, generally D1=(0.5～1) D; D2 is for connecing the cap diameter, and its size is also according to inclined tube diameter to be generated be arranged on the difference of inclined tube to be generated outlet position and difference, generally D2=(0.5～1) D.
A kind of old catalyst distrbutor of the utility model, it is further characterized in that: H1 is the total length of access slot, and its size is determined according to practical situation, general H1=300～700mm during greater than 400mm, connect stiffened plate to support as H1 below access slot.H2 connects the distance at long two ends of cap, and its concrete length depends on the angle β of installation site and corner connection cap and revivifier inwall, general H2=200～600mm.
Adopt the utility model, have following beneficial effect:
(1) owing in inclined tube outlet to be generated mid-way, being connected to access slot, can, by catalyst transport to specified location, make catalyst distribution more even on the one hand; Can also reduce on the other hand catalyzer circulation sectional area, the catalyzer of the increasing export speed that flows.In inclined tube outlet to be generated, with the revivifier link position, be connected to cap, equally also can increase the mobile speed of outlet catalyzer, make catalyzer better to be uniformly distributed in regenerator bed.
(2) the utility model is simple in structure, easy to implement and the operation, do not need to carry wind, can according to practical situation in revivifier adjust the divider level angle and with the axle center angle of inclined tube to be generated, can better improve reclaimable catalyst situation pockety in revivifier.
The accompanying drawing explanation
Fig. 1 the utility model old catalyst distrbutor schematic diagram in revivifier;
Fig. 2 old catalyst distrbutor access slot vertical view;
Fig. 3 old catalyst distrbutor connects the cap front view;
Fig. 4 the utility model old catalyst distrbutor stereographic map.
Reference numeral shown in figure is: 1-inclined tube to be generated, and the 2-revivifier, the 3-old catalyst distrbutor, the 31-access slot, 32-connects cap, the 4-main air distribution pipe for regenerator.
Embodiment
Below in conjunction with accompanying drawing, further illustrate embodiment of the present utility model, but these embodiment do not limit the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows.Old catalyst distrbutor 3 is by access slot 31 and connect cap 32 and form, and access slot 31 connects cap 32 and is connected to inclined tube to be generated and revivifier 2 upper ends, inwall connection under being connected in inclined tube outlet inwall to be generated.The catalyzer process that flows is as follows: through the reacted reclaimable catalyst of riser reactor through inclined tube 1 to be generated via access slot 31, be transported to fluidisation regeneration in designated position in revivifier 2.The access slot 31 of old catalyst distrbutor 3, can lead and carry catalyzer to specified location and can reduce catalyzer circulation sectional area to improve the mobile speed of outlet catalyzer, connecing cap 32 is mainly to reduce inclined tube outlet catalyzer circulation sectional area to be generated, to improve the mobile speed of outlet catalyzer, make catalyzer be distributed in uniformly in regenerator bed, main air distribution pipe for regenerator 4 is be used to providing revivifier burning required air.
In Fig. 2, Fig. 3, old catalyst distrbutor 3 principal dimensions are described as: D is inclined tube diameter to be generated, D1 is the access slot diameter, its size is according to inclined tube diameter to be generated and be arranged on the difference of inclined tube to be generated outlet position and difference, D2 is for connecing the cap diameter, and its size is also according to inclined tube diameter to be generated be arranged on the difference of inclined tube to be generated outlet position and difference; H1 is the total length of access slot, and its size is determined according to practical situation, and is as longer as H1, below access slot, connect stiffened plate to support, and H2 connects the distance at long two ends of cap, and its concrete length depends on the angle β of installation site and corner connection cap and revivifier inwall; For catalyzer can more successfully be flow in revivifier from inclined tube outlet access slot 31 to be generated, access slot 31 has certain angle α with level.Each size is described below: D1=(0.5～1) D, D2=(0.5～1) D, H1=300～700mm, α=5～45 °, β=15～60 °, H2=200～600mm.
Embodiment:
The application of old catalyst distrbutor on 500,000 ton/years of FCC apparatus.
The utility model is applied in certain FCC apparatus Regenerator reformation, and old catalyst distrbutor is not installed in inclined tube outlet originally to be generated, and the old catalyst distrbutor parameter is in Table 1.
Table 1FCC regenerating unit old catalyst distrbutor parameter
Claims (8)
1. old catalyst distrbutor, described divider to be generated is arranged at inclined tube to be generated outlet position, it is characterized in that: described divider to be generated is by access slot and connect cap and form, described access slot is arranged on upper/lower positions in inclined tube outlet inwall to be generated, in inclined tube outlet to be generated, with revivifier link position place, is connected to cap.
2. a kind of old catalyst distrbutor according to claim 1 is characterized in that: both sides are added with wear resistance lining at described access slot and inside and outside connecing cap.
3. a kind of old catalyst distrbutor according to claim 1, it is characterized in that: described access slot diameter D1 is 0.5～1 inclined tube diameter D to be generated.
4. a kind of old catalyst distrbutor according to claim 1 is characterized in that: the described cap diameter D2 that connects is 0.5～1 inclined tube diameter D to be generated.
5. a kind of old catalyst distrbutor according to claim 1, it is characterized in that: the total length H1 of described access slot is 300～700mm.
6. a kind of old catalyst distrbutor according to claim 1 is characterized in that: described connect cap the distance H 2 at long two ends be 200～600mm.
7. a kind of old catalyst distrbutor according to claim 1, it is characterized in that: the described angle β that connects cap and revivifier inwall is 15～60 °.
8. a kind of old catalyst distrbutor according to claim 1, it is characterized in that: the angle α of described access slot and level is 5～45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202743245U CN203295445U (en) | 2013-05-10 | 2013-05-10 | Regeneration catalyst distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202743245U CN203295445U (en) | 2013-05-10 | 2013-05-10 | Regeneration catalyst distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203295445U true CN203295445U (en) | 2013-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202743245U Expired - Lifetime CN203295445U (en) | 2013-05-10 | 2013-05-10 | Regeneration catalyst distributor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203295445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913194A (en) * | 2018-06-12 | 2018-11-30 | 中国石油大学(北京) | A kind of old catalyst distrbutor |
| CN113842842A (en) * | 2020-06-28 | 2021-12-28 | 中国石油化工股份有限公司 | Device and method for preparing olefin by catalytic conversion of methanol |
-
2013
- 2013-05-10 CN CN2013202743245U patent/CN203295445U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913194A (en) * | 2018-06-12 | 2018-11-30 | 中国石油大学(北京) | A kind of old catalyst distrbutor |
| CN108913194B (en) * | 2018-06-12 | 2019-10-11 | 中国石油大学(北京) | A kind of old catalyst distrbutor |
| CN113842842A (en) * | 2020-06-28 | 2021-12-28 | 中国石油化工股份有限公司 | Device and method for preparing olefin by catalytic conversion of methanol |
| CN113842842B (en) * | 2020-06-28 | 2022-08-30 | 中国石油化工股份有限公司 | Device and method for preparing olefin by catalytic conversion of methanol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |