CN203174048U - Feeding device of catalytic cracking reactor - Google Patents
Feeding device of catalytic cracking reactor Download PDFInfo
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- CN203174048U CN203174048U CN 201320052518 CN201320052518U CN203174048U CN 203174048 U CN203174048 U CN 203174048U CN 201320052518 CN201320052518 CN 201320052518 CN 201320052518 U CN201320052518 U CN 201320052518U CN 203174048 U CN203174048 U CN 203174048U
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- atomizing steam
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Abstract
A feeding device of a catalytic cracking reactor belongs to the technical field of petroleum cracking. A raw material flow path pipeline is connected with an annular pipe; the end of the annular pipe is connected with nozzles; the annular pipe is divided into four paths which are respectively connected with the raw material flow pipeline; an atomizing steam flow path pipeline is connected with an atomizing steam annular pipe; the atomizing steam annular pipe is connected with atomizing steam pipelines; the atomizing steam pipelines are connected with the steam interfaces of the nozzles; a lifting pipe is arranged in the centers of the atomizing steam annular pipe and the annular pipe; the atomizing steam annular pipe is connected with a machine frame through a support; and the annular pipe is connected with the machine frame through a support. The feeding device has the advantages as follows: the sectional feeding of the lifting pipe of the catalytic cracking reactor through the nozzles is changed into the annular feeding; the pressure in the feeding pipes before the nozzles is almost equal, and the feeding flow is basically same, so that the phenomenon of bias flow of materials flowing out from the nozzles is eliminated; the coking in the lifting pipe of the feeding device is reduced; and the product distribution is optimized.
Description
Technical field
The utility model relates to a kind of feeding unit of catalyst cracker, belongs to the cracking of oil technical field.
Background technology
At present, the raw material sources of catalyst cracker are more extensive, and in general feedstock property is all poor, and the material feeding mode has direct influence to the catalytic cracking effect.The atomizing raw materials effect that a kind of good feeding manner can produce is beneficial to fully contacting of catalyzer and raw material, and then influences good and bad degree and the product distribution situation of catalytic cracking reaction.
The Chinese patent publication number is: CN1340595; " a kind of feeding method for catalytic cracking of hydrocarbon oil " is provided, above the regenerated catalyst entrance of riser reactor inside, the finish sparger is set, the lower middle portion of riser reactor is divided into is parallel to 2～4 axial reaction zones, and at each reaction zone corresponding hydrocarbon raw material nozzle is set; High temperature regeneration agent from revivifier evenly distributes in each reaction zone; Hydrocarbon raw material of different nature injects different reaction zones respectively, contacts with the high temperature regeneration agent and reacts; Reacted logistics is up along riser tube in reaction zone separately, leave the finish sparger after, each logistics mixes in continuing the process up along riser tube mutually; Reaction product isolated, spent agent returns riser reactor and recycles after stripping, regeneration.The product that adopts this method to help to improve catalytic cracking distributes and product property.
The Chinese patent publication number is: CN1388212, " a kind of oil solution mixing chamber for catalytic cracking riser reactor " is provided, and comprise with lower member: pre-riser tube, interior transfer lime, outer transfer lime, lifting dielectric distribution device, hydrocarbon oil distribution device; Wherein, pre-riser tube and the coaxial setting from bottom to up of interior transfer lime are round table-like transition section between the two, and along the even perforate of the circumferential direction of this round platform; Outer transfer lime is positioned at the outside of transfer lime, and coaxial with interior transfer lime, and they form annular cavity between the two; Link to each other with riser tube behind the top undergauge of outer transfer lime, and behind the undergauge of its underpart with pre-riser tube and interior transfer lime between round table-like transition section link to each other; Promote that the dielectric distribution device is arranged at interior transfer lime, pre-riser tube respectively and by the bottom of the formed annular cavity of inside and outside transfer lime; Hydrocarbon oil distribution device and be arranged at bottom and the top of outer transfer lime respectively.
Be entitled as " a kind of feeding method for catalytic cracking of hydrocarbon oil " (patent No.: 00122842.0; The open date: 2002-3-20) in the domestic petroleum petrochemical industry patent, a kind of feed process of catalytic cracking of hydrocarbon oil is provided, be above the regenerator entrance of riser tube inside, the finish sparger to be set, the lower middle portion of riser tube is divided into is parallel to 2～4 axial reaction zones, at each reaction zone corresponding hydrocarbon oil feed nozzle is set, make hydrocarbon ils of different nature inject different reaction zones respectively, contact with the high temperature regeneration agent and react; Reacted logistics is up along riser tube, converges after leaving the finish sparger; Reaction product isolated, spent agent recycles after stripping, regeneration.
Existing sectional feeding mode: consult Fig. 1.
Raw material is divided into two-way earlier, and every road raw material is further divided into two-way then, causes the riser tube nozzle system.Simultaneously, atomizing steam is divided into two-way earlier, and every road is further divided into two-way then, causes the riser tube nozzle system and mixes the back ejection with raw material.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of feeding unit of catalyst cracker, can prevent from producing bias current between each road nozzle of riser tube, thereby make the raw material of each road nozzle obtain balanced atomizing effect.
A kind of feeding unit of catalyst cracker, raw material flow process pipe connection ring pipe, the other end of ring pipe connects nozzle, and ring pipe is 4 the tunnel to connect raw material flow process pipeline respectively;
Atomizing steam flow process pipe connection atomizing steam ring pipe; The atomizing steam ring pipe connects atomizing steam pipeline, the vapor interface of atomizing steam pipe connection nozzle;
The center of atomizing steam ring pipe and ring pipe is riser tube; The atomizing steam ring pipe is connected with frame by supporting, and ring pipe is connected with frame by supporting.
A kind of feed process of catalyst cracker contains following steps;
Charging comprises raw material and steam, steam and raw material are introduced into ring pipe, draw from ring pipe then and enter the nozzle ejection, steam utilizes the surging force of steam and the special construction of nozzle self in nozzle, atomizing raw materials is become tiny particle, and raw material fully contacts with catalyzer and carries out catalytic cracking reaction then;
Draw 4 road nozzles on the ring pipe, the flow of charging and the pressure of pipeline fall impartial substantially, and the flow of the atomizing steam of 4 road nozzles is basic identical, and the pressure of pipeline falls also basic identical, the atomizing effect basically identical of raw material in 4 road nozzles; Avoided the bias current phenomenon, be conducive to each road raw material and obtain the impartial chance that fully contacts with catalyzer, thereby make raw material reach catalytic cracking effect preferably.
The utility model has the advantages that: the feeding manner of catalyst cracker, catalyst cracker riser tube nozzle material-feeding changes annular charging into by sectional feeding; The catalyst cracker raw material installs ring pipe additional before advancing the riser tube nozzle; The catalyst cracker atomizing steam installs ring pipe additional before advancing the riser tube nozzle.
After catalyticreactor riser tube nozzle system adopts annular feeding manner, each feeding line internal pressure is fallen almost impartial before the nozzle, feed rate is basic identical, eliminated the bias current phenomenon of each nozzle material, reduced the coking in the device riser tube, product distributes and is optimized: yield of gasoline increases by 0.4 percentage point, diesel yield increases by 0.6 percentage point, liquid hydrocarbon descends 0.4 percentage point, coke yield descends 0.5 percentage point, the dry gas yield descends 0.3 percentage point, and total liquid is received and risen 0.6 percentage point.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model, as figure wherein:
Fig. 1 is existing sectional feeding mode synoptic diagram.
Fig. 2 is structural representation of the present utility model.
Solid line represents the flow process of raw material, and dotted line represents the flow process of atomizing steam, and wherein the dotted line in the middle of the riser tube is represented the part that is blocked, and 4 road arrows that are connected on the riser tube are represented 4 tunnel chargings.
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 2, a kind of feeding unit of catalyst cracker, solid line are raw material flow process pipeline 2, and dotted line is atomizing steam flow process pipeline 3, wherein the dotted line in the middle of the riser tube 1 is represented the part that is blocked, and 4 road line arrows that are connected on the riser tube 1 represent to have 4 road feed pipes.
Raw material flow process pipeline 2 connects ring pipes 4, and the other end of ring pipe 4 connects nozzle 6, and ring pipe 4 is 4 the tunnel to connect raw material flow process pipeline 2 respectively;
Atomizing steam flow process pipeline 3 connects atomizing steam ring pipe 7; Atomizing steam ring pipe 7 connects atomizing steam pipeline, the vapor interface of atomizing steam pipe connection nozzle;
The center of atomizing steam ring pipe 7 and ring pipe 4 is riser tube 1.
The atomizing steam pipeline is more than 2.
A kind of feeding unit of catalyst cracker solves the bias current phenomenon of each road charging, and the line pressure of each road nozzle of balance falls, and makes each road nozzle material-feeding even, reduces coking in the riser tube, optimizes product and distributes.
A kind of charging of feeding unit of catalyst cracker comprises raw material and steam.Steam utilizes the surging force of steam and the special construction of nozzle self in nozzle, atomizing raw materials is become tiny particle, and raw material fully contacts with catalyzer and carries out catalytic cracking reaction then;
Feeding manner to the nozzle system charging changes, and namely changes annular feeding manner into by original segmented mode charging.
It is impartial substantially to make that like this pressure of the flow of 4 road nozzle material-feedings and pipeline falls, and has avoided the bias current phenomenon, is conducive to each road raw material and obtains the impartial chance that fully contacts with catalyzer, thereby make raw material reach catalytic cracking effect preferably.
The atomizing steam flow process installs ring pipe additional, and namely atomizing steam is introduced into ring pipe, draws from ring pipe then to enter nozzle system and mix with raw material.Make that like this flow of atomizing steam of 4 road nozzles is basic identical, the pressure of pipeline falls also basic identical, the atomizing effect basically identical of raw material in 4 road nozzles.
A kind of nozzle material-feeding of feeding unit of catalyst cracker changes annular charging into by original sectional feeding.
Technical characterictic of the present utility model is as follows:
The riser tube nozzle material-feeding of catalyst cracker changes annular charging into by sectional feeding;
The raw material of catalyst cracker installs ring pipe additional before advancing the riser tube nozzle;
The atomizing steam of catalyst cracker installs ring pipe additional before advancing the riser tube nozzle.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (1)
1. a catalyst cracker feeding unit is characterized in that raw material flow process pipe connection ring pipe, and the other end of ring pipe connects nozzle, and ring pipe is 4 the tunnel to connect raw material flow process pipeline respectively;
Atomizing steam flow process pipe connection atomizing steam ring pipe; The atomizing steam ring pipe connects atomizing steam pipeline, the vapor interface of atomizing steam pipe connection nozzle;
The center of atomizing steam ring pipe and ring pipe is riser tube; The atomizing steam ring pipe is connected with frame by supporting, and ring pipe is connected with frame by supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052518 CN203174048U (en) | 2013-01-30 | 2013-01-30 | Feeding device of catalytic cracking reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052518 CN203174048U (en) | 2013-01-30 | 2013-01-30 | Feeding device of catalytic cracking reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203174048U true CN203174048U (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320052518 Expired - Fee Related CN203174048U (en) | 2013-01-30 | 2013-01-30 | Feeding device of catalytic cracking reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203174048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965949A (en) * | 2013-01-30 | 2014-08-06 | 中国石油天然气股份有限公司 | Feeding method and device of catalytic cracking reactor |
| CN105368479A (en) * | 2015-10-16 | 2016-03-02 | 中国石油大学(北京) | Novel flow aid technology promoting mixing of raw oil and catalyst in catalytic cracking riser feeding area |
-
2013
- 2013-01-30 CN CN 201320052518 patent/CN203174048U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965949A (en) * | 2013-01-30 | 2014-08-06 | 中国石油天然气股份有限公司 | Feeding method and device of catalytic cracking reactor |
| CN103965949B (en) * | 2013-01-30 | 2016-01-20 | 中国石油天然气股份有限公司 | A kind of feed process of catalyst cracker and device |
| CN105368479A (en) * | 2015-10-16 | 2016-03-02 | 中国石油大学(北京) | Novel flow aid technology promoting mixing of raw oil and catalyst in catalytic cracking riser feeding area |
| CN105368479B (en) * | 2015-10-16 | 2023-12-19 | 中国石油大学(北京) | Novel glidant technology for promoting oil agent mixing in feeding area of catalytic cracking riser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20220130 |