CN204281687U - A kind of feed nozzle and riser reactor - Google Patents
A kind of feed nozzle and riser reactor Download PDFInfo
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- CN204281687U CN204281687U CN201420705696.3U CN201420705696U CN204281687U CN 204281687 U CN204281687 U CN 204281687U CN 201420705696 U CN201420705696 U CN 201420705696U CN 204281687 U CN204281687 U CN 204281687U
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- feed nozzle
- spray orifice
- nozzle
- spray chamber
- steam
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Abstract
The utility model discloses a kind of feed nozzle of catalytic cracking unit, comprise nozzle body, middle part spray chamber and shower nozzle.Steam enters annular steam pipeline from the steam inlet tube the pipe core of nozzle body, then steam is injected in the stock oil in spray chamber by the first steam injection hole be arranged on anterior spray chamber with the second steam injection hole be arranged on the spray chamber of middle part, make stock oil generation primary atomization and secondary-atomizing respectively, when stock oil after atomization sprays from shower nozzle, the second spray orifice be arranged on shower nozzle makes it again be atomized, thus the degree of scatter of the stock oil mist of oil entering reactor is improved, overcome the shortcoming of the mist of oil degree of scatter difference that existing feed nozzle is formed, make mist of oil mixing gasifying rapid in the catalyzer in reactor after entering riser reactor, sufficient reacting, light oil yield is high, coking yield lowers, device benefit improves.
Description
Technical field
The utility model relates to field of petrochemical industrial, particularly relates to a kind of feed nozzle.The utility model also relates to a kind of riser reactor.
Background technology
Catalytic cracking is one of petroleum refining process, is one of main method of oil secondary processing.Catalytic cracking is under the effect of thermocatalyst, make mink cell focus generation cracking reaction, changes the process of reacted gas, gasoline and diesel oil etc. into.
Riser reactor is the nucleus equipment in catalyzed cracking processing process.In riser reactor reaction process, stock oil enters reactor after nozzle atomization, contacts with high temperature catalyst, by thermal evaporation and start reaction, oil gas generally stops 2 ~ 4 seconds in the reactor, enters finish separation system, stopped reaction after completing reaction.This technological process requires that stock oil enters after reactor through nozzle atomization, carries out contacting fast and uniformly with catalyzer, is beneficial to the carrying out reacted.In addition, after charging and catalyst exposure realize fast, the flowing of uniform plug flow should be formed in riser tube, to form uniform reaction time, the maximum yield of object product can be ensured like this.
Nozzle is the key equipment of the stock oil atomization making to enter reactor.But, the feed nozzle that current catalytic cracking unit uses, when oil plant enters reactor from nozzle ejection, the mist of oil of formation is flat fan, and the degree of scatter of mist of oil is poor, and mist of oil can not be contacted fast and uniformly with catalyzer, and the carrying out of impact reaction.
Utility model content
The utility model provides a kind of feed nozzle, the shortcoming of the mist of oil degree of scatter difference that the feed nozzle overcoming the use of existing catalytic cracking unit is formed.The utility model also provides a kind of riser reactor.
A kind of feed nozzle that the utility model provides, comprises nozzle body, middle part spray chamber and shower nozzle;
Described nozzle body comprises the pipe core for transferring raw material oil, around the outer tube of described pipe core with export with described pipe core the anterior spray chamber be connected, described pipe core comprises stock oil entrance, described outer tube is connected with steam inlet tube, the outside surface of described pipe core and the internal surface of described outer tube form annular steam pipeline, described pipe core is connected by the first ring baffle with described outer tube, described anterior spray chamber comprises the first exit end in the first inlet end and tubulose expanding shape tubulose, described first inlet end exports with described pipe core and is connected, described first exit end is provided with the first steam injection hole,
The second inlet end that described middle part spray chamber comprises tubulose and the first end be connected with described second inlet end, described second inlet end is connected with the first exit end of described anterior spray chamber, described second inlet end is provided with the second steam injection hole, described first end is provided with the first spray orifice, described first end is connected by the second ring baffle with described outer tube;
Described shower nozzle surrounds described first end, and the 3rd inlet end that described shower nozzle comprises tubulose and the second end be connected with described 3rd inlet end, described 3rd inlet end is connected with described second ring baffle, described the second end is provided with the second spray orifice.
Alternatively, described first exit end is provided with 1 ~ 10 described first steam injection hole of circle, the number of every collar aperture is 5 ~ 50.
Alternatively, the central axis in described first steam injection hole and the central axis of described anterior spray chamber have angle δ 1,5 °≤δ 1≤90 °.
Alternatively, described second inlet end is provided with 1 ~ 10 described second steam injection hole of circle, the number of every collar aperture is 5 ~ 50.
Alternatively, the central axis in described second steam injection hole and the central axis of described middle part spray chamber have angle δ 2,5 °≤δ 2≤90 °.
Alternatively, the outer shape of described the second end is spherical, plate shaped, conical or cylindrical.
Alternatively, the scope of the number of described second spray orifice is 3 ~ 30.
Alternatively, the distribution shape of described second spray orifice on described the second end is the closed curve be made up of two sections of circular arcs and two sections of straight-line segments.
Alternatively, the distribution shape of described second spray orifice on described the second end is straight line section.
Alternatively, the Polygons of the distribution shape of described second spray orifice on described the second end to be limit number be M, M is integer and M >=3.
Alternatively, the distance between the inwall of described the second end and the outer wall of described first end is 2mm ~ 200mm.
Alternatively, the quantity of described first spray orifice is identical with the quantity of described second spray orifice, the distribution of described first spray orifice on described first end is identical with the distribution of described second spray orifice on described the second end, the central axis of described first spray orifice and the central axes of described second spray orifice.。
A kind of feed nozzle provided by the utility model, comprises nozzle body, middle part spray chamber and shower nozzle.
Described nozzle body comprises the pipe core for transferring raw material oil, the outer tube around described pipe core and exports with described pipe core the anterior spray chamber be connected, and described pipe core comprises stock oil entrance.Stock oil flows into pipe core through stock oil entrance, enters anterior spray chamber from the outlet of pipe core; Meanwhile, steam enters in the annular steam pipeline that formed by pipe core outside surface and outer pipe internal surface from steam inlet tube; Enter a part of steam in annular steam pipeline by the first steam injection hole on the first exit end of anterior spray chamber, be injected in the stock oil entering anterior spray chamber, make described stock oil form bubble.
The stock oil forming bubble enters middle part spray chamber by the second inlet end of middle part spray chamber, and another part steam in annular steam pipeline is by the second steam injection hole on the second inlet end, be injected in the spray chamber of middle part, secondary steam mixes with through the steam of formation bubble of primary atomization and the mixture of stock oil, form stable bubble flow, from the first spray orifice ejection the first end of middle part spray chamber, enter shower nozzle.Enter the vapour of the blister of shower nozzle, oil mixt further from the second spray orifice ejection the second end of shower nozzle, be atomized again and enter riser reactor.
Steam is injected in stock oil by the first steam injection hole be arranged on anterior spray chamber with the second steam injection hole be arranged on the spray chamber of middle part, make stock oil generation primary atomization and secondary-atomizing respectively, when stock oil after atomization sprays from shower nozzle, the second spray orifice be arranged on shower nozzle makes it again be atomized, thus the degree of scatter of the stock oil mist of oil entering reactor is improved.So described feed nozzle overcomes the shortcoming of the mist of oil degree of scatter difference that existing feed nozzle is formed.
The utility model also provides a kind of riser reactor, comprises above-described feed nozzle.
Alternatively, the angle between the central axis of described feed nozzle and the longitudinal center line of described riser reactor is λ, 15 °≤λ≤75 °.
Alternatively, the number of the second spray orifice of described feed nozzle is N, N is integer;
The central axis of described feed nozzle and the longitudinal center line of described riser reactor form a plane, the central axis of the second spray orifice of described feed nozzle and horizontal angle be respectively α 1, α 2 ... α N, α 1, α 2 ... the span of α N is 0 ° ~ 89 °;
The central axis of the second spray orifice of described feed nozzle and the angle of described plane be respectively β 1, β 2 ... β N, β 1, β 2 ... the span of β N is 0 ° ~ 89 °.
A kind of riser reactor provided by the utility model, the mist of oil good dispersion that the feed nozzle of described riser reactor is spurted in riser reactor, mist of oil is mixed rapidly after entering riser reactor, sufficient reacting with the catalyzer in reactor.
Accompanying drawing explanation
The longitudinal sectional view of a kind of feed nozzle that Fig. 1 provides for the utility model embodiment;
The longitudinal sectional view of the anterior spray chamber of a kind of feed nozzle that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the sectional view of the C-C along the line of the anterior spray chamber shown in Fig. 2;
A kind of longitudinal sectional view replacing form that Fig. 4 is the anterior spray chamber shown in Fig. 2;
The longitudinal sectional view of the middle part spray chamber of a kind of feed nozzle that Fig. 5 provides for the utility model embodiment;
Fig. 6 is the sectional view of the B-B along the line of the middle part spray chamber shown in Fig. 5;
A kind of longitudinal sectional view replacing form that Fig. 7 is the middle part spray chamber shown in Fig. 5;
The front view of the shower nozzle of a kind of feed nozzle that Fig. 8 provides for the utility model embodiment;
The sectional view of the A-A along the line that Fig. 9 is the shower nozzle shown in Fig. 8;
A kind of front view replacing form that Figure 10 is the shower nozzle shown in Fig. 8;
The sectional view of the A-A along the line that Figure 11 is the shower nozzle shown in Figure 10;
The front view of another replacement form that Figure 12 is the shower nozzle shown in Fig. 8;
Figure 13 is arranged on the partial lengthwise sectional view on riser reactor for a kind of feed nozzle that the utility model embodiment provides;
Figure 14 is arranged on the vertical view on riser reactor for the feed nozzle shown in Figure 13.
Embodiment
The utility model provides a kind of feed nozzle, the shortcoming of the mist of oil degree of scatter difference that the feed nozzle overcoming the use of existing catalytic cracking unit is formed.The utility model also provides a kind of riser reactor.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See Fig. 1, a kind of feed nozzle that the utility model embodiment provides, the feed nozzle that the riser reactor being specially catalytic cracking unit uses, comprises nozzle body, middle part spray chamber and shower nozzle.
Described nozzle body comprises the pipe core 2 for transferring raw material oil, around the outer tube 6 of described pipe core with export with described pipe core 2 the anterior spray chamber 7 be connected, described pipe core 2 comprises stock oil entrance 1, described outer tube 6 is connected with steam inlet tube 4, the outside surface of described pipe core 2 and the internal surface of described outer tube 6 form annular steam pipeline 21, described pipe core 2 is connected by the first ring baffle 3 with described outer tube 6, described anterior spray chamber 7 comprises the first exit end 23 in the first inlet end 22 and tubulose expanding shape tubulose, described first inlet end 22 exports with described pipe core 2 and is connected, described first exit end 23 is provided with the first steam injection hole 11.
The second inlet end 24 that described middle part spray chamber 8 comprises tubulose and the first end 25 be connected with described second inlet end, described second inlet end 24 is connected with the first exit end 23 of described anterior spray chamber, described second inlet end 24 is provided with the second steam injection hole 12, described first end 25 is provided with the first spray orifice 13, described first end 25 is connected by the second ring baffle 9 with described outer tube 6.
Described shower nozzle 10 surrounds described first end 25, the 3rd inlet end 26 that described shower nozzle 10 comprises tubulose and the second end 27 be connected with described 3rd inlet end 26, described 3rd inlet end 26 is connected with described second ring baffle 9, described the second end 27 is provided with the second spray orifice 14.
Stock oil flows into pipe core 2 through stock oil entrance 1, enters anterior spray chamber 7 from the outlet of pipe core 2; Meanwhile, steam is entered in the annular steam pipeline 21 that formed by pipe core outside surface and outer pipe internal surface by the steam-in 5 be connected with steam inlet tube 4; Enter a part of steam in annular steam pipeline 21 by the first steam injection hole 11 on the first exit end 23 of anterior spray chamber, be injected in the stock oil entering anterior spray chamber 7, make described stock oil form bubble.
The stock oil forming bubble enters middle part spray chamber by the second inlet end 24 of middle part spray chamber 8, and another part steam in annular steam pipeline 21 is by the second steam injection hole 12 on the second inlet end 24, be injected in the spray chamber 8 of middle part, secondary steam mixes with through the steam of formation bubble of primary atomization and the mixture of stock oil, form stable bubble flow, spray from the first spray orifice 13 first end 25 of middle part spray chamber, enter shower nozzle 10.Enter the vapour of the blister of shower nozzle, oil mixt to spray from the second spray orifice 14 the second end 27 of shower nozzle further, be atomized again and enter riser reactor.
Steam is injected in stock oil by the first steam injection hole be arranged on anterior spray chamber with the second steam injection hole be arranged on the spray chamber of middle part, make stock oil generation primary atomization and secondary-atomizing respectively, when stock oil after atomization sprays from shower nozzle, the second spray orifice be arranged on shower nozzle makes it again be atomized, thus the degree of scatter of the stock oil mist of oil entering reactor is improved, mist of oil has good distribution shape.So described feed nozzle overcomes the shortcoming of the mist of oil degree of scatter difference of the feed nozzle formation that existing catalytic cracking unit uses.
In the present embodiment, first exit end 23 of described anterior spray chamber 7 is provided with 1 ~ 10 described first steam injection hole 11 of circle, the number of every collar aperture is 5 ~ 50, first steam injection hole 11 can be along the circumferential direction uniform, also along the circumferential direction can be dispersed on the first exit end 23, a part of steam in annular steam pipeline 21 is injected in anterior spray chamber sufficiently uniformly.The longitudinal sectional view of the anterior spray chamber of a kind of feed nozzle that Fig. 2 provides for the present embodiment, Fig. 3 is the sectional view of the C-C along the line of the anterior spray chamber shown in Fig. 2, a kind of longitudinal sectional view replacing form that Fig. 4 is the anterior spray chamber shown in Fig. 2.
The central axis in the first steam injection hole 11 and the central axis of anterior spray chamber 7 have angle δ 1, and its span is 5 °≤δ 1≤90 °.
Second inlet end 24 in a tubular form of described middle part spray chamber 8 is provided with 1 ~ 10 described second steam injection hole 12 of circle, the number of every collar aperture is 5 ~ 50, second steam injection hole 12 can be along the circumferential direction uniform, also along the circumferential direction can be dispersed on the second inlet end 24, thus another part steam in annular steam pipeline 21 is injected in the spray chamber of middle part sufficiently uniformly.The longitudinal sectional view of the middle part spray chamber of a kind of feed nozzle that Fig. 5 provides for the utility model embodiment, Fig. 6 is the sectional view of the B-B along the line of the middle part spray chamber shown in Fig. 5.A kind of longitudinal sectional view replacing form that Fig. 7 is the middle part spray chamber shown in Fig. 5.
The central axis in the second steam injection hole 12 and the central axis of middle part spray chamber 8 have angle δ 2, and its span is 5 °≤δ 2≤90 °.
A kind of feed nozzle that the another embodiment of the utility model provides, on the basis of above-described embodiment, the outer shape of the second end 27 of described shower nozzle 10 can be spherical, plate shaped, conical or cylindrical, as shown in Fig. 9, Figure 11.
Have certain space between the inwall of the second end 27 and the outer wall of first end 25, the distance between the inwall of the second end 27 and the outer wall of first end 25 is 2mm ~ 200mm.
The number of the second spray orifice 14 that the second end 27 is arranged is that the 3 ~ 30, second spray orifice 14 is distributed with various ways on the second end 27.The distribution shape of the second spray orifice 14 on the second end 27 can be the closed curve be made up of two sections of circular arcs and two sections of straight-line segments, as shown in figs; The distribution shape of the second spray orifice 14 on the second end 27 also can be straight line section, as shown in figure 12; The Polygons of the distribution shape of the second spray orifice 14 on the second end 27 also can be limit number be M, M is integer and M >=3, is specially the non-equilateral polygon that limit number is M.
In the present embodiment, the outer shape of described first end 25 is consistent with the outer shape of described the second end 27, can be spherical, plate shaped, conical or cylindrical.The quantity of the first spray orifice 13 on first end 25 is identical with the quantity of described second spray orifice 14, the distribution of described first spray orifice on described first end is identical with the distribution of described second spray orifice on described the second end, the central axis of described first spray orifice and the central axes of described second spray orifice, the blister mixture of the vapour being conducive to like this being formed in the spray chamber of middle part, oil sprays from the first spray orifice, eject from the second spray orifice of shower nozzle further and enter reactor, be conducive to the dispersion of mist of oil.
A kind of riser reactor that the utility model embodiment provides, comprises the feed nozzle described in above embodiment.
See Figure 13, in the present embodiment, the angle between the central axis 31 of described feed nozzle and the longitudinal center line 32 of described riser reactor is λ, and it meets 15 °≤λ≤75 °.
The number of the second spray orifice 14 on the shower nozzle of described feed nozzle is N, N is integer.The central axis 31 of described feed nozzle forms a plane with the longitudinal center line 32 of described riser reactor, the central axis of the second spray orifice of described feed nozzle and horizontal angle be respectively α 1, α 2 ... α N, α 1, α 2 ... the span of α N is 0 ° ~ 89 °.See Figure 14, the central axis of the second spray orifice of described feed nozzle 33 and the angle of described plane be respectively β 1, β 2 ... β N, β 1, β 2 ... the span of β N is 0 ° ~ 89 °.
The second spray orifice that on shower nozzle, multi-angle is arranged, wellatomized vapour, oil mixt is made to spray enter riser reactor from multiple angular separation formulas in space, thus significantly increase the mixed effect of the catalyzer in mist of oil and riser reactor, oil droplet is made to gasify rapidly, promote fully reaction, make light oil yield high, coking yield lowers, and device benefit improves.Meanwhile, significantly reduce the secondary stream region above nozzle, the catalyzer flowing after making to contact with mist of oil is close to plug flow, and the reaction times of mist of oil and catalyzer reaches unanimity, and is conducive to the yield improving object product.
Above a kind of feed nozzle provided by the utility model and a kind of riser reactor are described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (15)
1. a feed nozzle, is characterized in that, comprises nozzle body, middle part spray chamber and shower nozzle;
Described nozzle body comprises the pipe core for transferring raw material oil, around the outer tube of described pipe core with export with described pipe core the anterior spray chamber be connected, described pipe core comprises stock oil entrance, described outer tube is connected with steam inlet tube, the outside surface of described pipe core and the internal surface of described outer tube form annular steam pipeline, described pipe core is connected by the first ring baffle with described outer tube, described anterior spray chamber comprises the first exit end in the first inlet end and tubulose expanding shape tubulose, described first inlet end exports with described pipe core and is connected, described first exit end is provided with the first steam injection hole,
The second inlet end that described middle part spray chamber comprises tubulose and the first end be connected with described second inlet end, described second inlet end is connected with the first exit end of described anterior spray chamber, described second inlet end is provided with the second steam injection hole, described first end is provided with the first spray orifice, described first end is connected by the second ring baffle with described outer tube;
Described shower nozzle surrounds described first end, and the 3rd inlet end that described shower nozzle comprises tubulose and the second end be connected with described 3rd inlet end, described 3rd inlet end is connected with described second ring baffle, described the second end is provided with the second spray orifice.
2. feed nozzle as claimed in claim 1, is characterized in that, described first exit end is provided with 1 ~ 10 described first steam injection hole of circle, the number of every collar aperture is 5 ~ 50.
3. feed nozzle as claimed in claim 1, it is characterized in that, the central axis in described first steam injection hole and the central axis of described anterior spray chamber have angle δ 1,5 °≤δ 1≤90 °.
4. feed nozzle as claimed in claim 1, is characterized in that, described second inlet end is provided with 1 ~ 10 described second steam injection hole of circle, the number of every collar aperture is 5 ~ 50.
5. feed nozzle as claimed in claim 1, it is characterized in that, the central axis in described second steam injection hole and the central axis of described middle part spray chamber have angle δ 2,5 °≤δ 2≤90 °.
6. feed nozzle as claimed in claim 1, it is characterized in that, the outer shape of described the second end is spherical, plate shaped, conical or cylindrical.
7. feed nozzle as claimed in claim 1, it is characterized in that, the scope of the number of described second spray orifice is 3 ~ 30.
8. feed nozzle as claimed in claim 1, it is characterized in that, the distribution shape of described second spray orifice on described the second end is the closed curve be made up of two sections of circular arcs and two sections of straight-line segments.
9. feed nozzle as claimed in claim 1, it is characterized in that, the distribution shape of described second spray orifice on described the second end is straight line section.
10. feed nozzle as claimed in claim 1, is characterized in that, the Polygons of the distribution shape of described second spray orifice on described the second end to be limit number be M, M is integer and M >=3.
11. feed nozzles as claimed in claim 1, it is characterized in that, the distance between the inwall of described the second end and the outer wall of described first end is 2mm ~ 200mm.
12. feed nozzles as described in any one of claim 1 to 11, it is characterized in that, the quantity of described first spray orifice is identical with the quantity of described second spray orifice, the distribution of described first spray orifice on described first end is identical with the distribution of described second spray orifice on described the second end, the central axis of described first spray orifice and the central axes of described second spray orifice.
13. 1 kinds of riser reactors, is characterized in that, comprise the feed nozzle described in any one of claim 1 to 12.
14. riser reactors as claimed in claim 13, it is characterized in that, the angle between the central axis of described feed nozzle and the longitudinal center line of described riser reactor is λ, 15 °≤λ≤75 °.
15. riser reactors as claimed in claim 13, is characterized in that, the number of the second spray orifice of described feed nozzle is N, N is integer;
The central axis of described feed nozzle and the longitudinal center line of described riser reactor form a plane, the central axis of the second spray orifice of described feed nozzle and horizontal angle be respectively α 1, α 2 ... α N, α 1, α 2 ... the span of α N is 0 ° ~ 89 °;
The central axis of the second spray orifice of described feed nozzle and the angle of described plane be respectively β 1, β 2 ... β N, β 1, β 2 ... the span of β N is 0 ° ~ 89 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705696.3U CN204281687U (en) | 2014-11-21 | 2014-11-21 | A kind of feed nozzle and riser reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705696.3U CN204281687U (en) | 2014-11-21 | 2014-11-21 | A kind of feed nozzle and riser reactor |
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| Publication Number | Publication Date |
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| CN204281687U true CN204281687U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420705696.3U Expired - Fee Related CN204281687U (en) | 2014-11-21 | 2014-11-21 | A kind of feed nozzle and riser reactor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2017021977A1 (en) * | 2015-08-06 | 2017-02-09 | Hindustan Petroleum Corporation Limited | Multi-stage liquid atomizer for fluidized catalytic cracking |
| CN110508412A (en) * | 2019-07-31 | 2019-11-29 | 西安交通大学 | The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine |
| CN110523553A (en) * | 2019-07-31 | 2019-12-03 | 西安交通大学 | A kind of atomization method and device magnetizing auxiliary in conjunction with gas phase auxiliary phase |
-
2014
- 2014-11-21 CN CN201420705696.3U patent/CN204281687U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017021977A1 (en) * | 2015-08-06 | 2017-02-09 | Hindustan Petroleum Corporation Limited | Multi-stage liquid atomizer for fluidized catalytic cracking |
| 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 |
| CN110508412A (en) * | 2019-07-31 | 2019-11-29 | 西安交通大学 | The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine |
| CN110523553A (en) * | 2019-07-31 | 2019-12-03 | 西安交通大学 | A kind of atomization method and device magnetizing auxiliary in conjunction with gas phase auxiliary phase |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20211121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |