CN1015901B - Air controlled catalyst cooling apparatus with internal circulation - Google Patents
Air controlled catalyst cooling apparatus with internal circulationInfo
- Publication number
- CN1015901B CN1015901B CN 90103413 CN90103413A CN1015901B CN 1015901 B CN1015901 B CN 1015901B CN 90103413 CN90103413 CN 90103413 CN 90103413 A CN90103413 A CN 90103413A CN 1015901 B CN1015901 B CN 1015901B
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- Prior art keywords
- housing
- catalyst
- heat
- passage
- coil pipe
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Abstract
The present invention relates to a catalyst cooler used for the cooling of catalyst regeneration in the process of heavy oil catalytic cracking, and the upper end of the cooler is communicated with the bottom or the lower side wall of a regenerator. The present invention provides three passage structures for a hot catalyst and a cold catalyst to use independently, and an expensive single acting slide valve is not used, but the circulation amounts of the catalysts are regulated by an air controlling method.
Description
The present invention relates to the catalyst cooler of catalyst regeneration cooling usefulness in a kind of heavy oil catalytic cracking process.
The catalyst cooler of catalyst regeneration cooling usefulness in the existing heavy oil catalytic cracking process can be divided into three types of upflowing, downflow system and back-mixing formulas by heat, cold catalyst stream flowing mode.The thermocatalyst of the upflowing catalyst cooler of Luoyang Petrochemical Engineering Co., China Petrochemical Corp's research and development is drawn by regenerator bottoms or lower wall, enters the bottom of water cooler; The catalyzer that water-cooled heat-obtaining tube bank in supercooler cools is carried its bottom by water cooler on the close phase section middle part or the top of carrying back revivifier to top by promoting wind.The thermocatalyst of the downflow system catalyst cooler of Beijing Design Institute, china Petro-chemico corporation's research and development enters water cooler top through the degassing by the gravity overflow by the close phase section middle part or the top of revivifier, the catalyzer that the water-cooled heat-obtaining tube bank in supercooler cools; Reduce to the bottom by gravity by water cooler top, overflow to external riser tube, by promoting wind it is carried back the close phase pars infrasegmentalis of revivifier then.Upflowing and downflow system catalyst cooler something in common are: all adopt single-linkage sliding valve control catalyst internal circulating load.United States Patent (USP) 1984 the 4438071st and disclosed back-mixing formula catalyst cooler in 1988 4757039, enter catalyzer-cold catalyzer of cooling of the thermocatalyst of water cooler and the water-cooled heat-obtaining in water cooler tube bank, it goes into outlet to be same place-the be revivifier position that links to each other with water cooler.The pipe of the water-cooled heat-obtaining of these three types of catalyst coolers tube bank is light pipe (be tube outer wall do not have be suitable for the structural shape strengthening conducting heat).
The shortcoming of above-mentioned three types of catalyst coolers is that upflowing and downflow system catalyst cooler must use expensive single-linkage sliding valve and need to adopt catalyzer heat-resisting, wear resistance lining to pass in and out pipeline and set up FlexbleJoint etc.So construction cost is very high.Back-mixing formula catalyst cooler is owing to heat, cold catalyzer are same inlet/outlets; So, there is the considerable part thermocatalyst to fail to contact with water-cooled heat-obtaining tube bank in the water cooler, just return the close phase section of revivifier, and cooled catalyzer has considerable part overstand in water cooler, thereby influence heat-transfer effect; In addition, this water cooler only depends on back-mixing to realize heat, the displacement of cold catalyzer, and for this reason, aspect ratio is little.
The objective of the invention is to avoid above-mentioned shortcoming of the prior art, a kind of catalyst cooling apparatus with internal circulation that adopts the gas control method to regulate the catalyst recirculation amount is provided.
Task of the present invention is achieved in that the housing of this water cooler is a cylindrical housings, and the upper end is connected with regenerator bottoms or lower wall.On the central shaft of housing, be provided with the passage that the cold catalyzer of co-axial cast returns revivifier.The close phase section of revivifier is directly inserted in the passage upper end.The passage lower end is the trumpet type pipeline section.In the trumpet type pipeline section, insert and promote airduct.Between housing and tubular passageway, be provided with telescoping heat-obtaining tube bank (be used for cooling heat catalyzer).Be provided with the fluidized wind coil pipe at housing bottom; On housing wall, be furnished with the blast inlet of the loosening thermocatalyst of confession along the axis direction of housing.The above is the I kind pattern air controlled catalyst cooling apparatus with internal circulation of (being called for short the I type).
The gas control internal recycle catalyst cooler of the II kind pattern of similar same technical scheme (being called for short the II type).The upper end of its cylindrical housings is connected with regenerator bottoms or lower wall; Housing built-in one axial arc-shaped partition is divided into two spaces of size with establishing in the housing, and section is that the little space of American football shape is the passage that cold catalyzer turns back to revivifier, is provided with the lifting airduct in the passage bottom.Large space partly is provided with the telescoping heat-obtaining tube bank that is used for the cooling heat catalyzer in the housing, in telescoping heat-obtaining tube bank bottom, is provided with the fluidized wind coil pipe.
The air controlled catalyst cooling apparatus with internal circulation of the III kind pattern of similar same technical scheme (being called for short the III type).The upper end of its cylindrical housings is connected with regenerator bottoms or lower wall.One tube-in-tube structure is arranged in the housing, and this upper cartridge is inserted in revivifier, and the fluidized wind coil pipe of its underpart reducing and water cooler bottom is provided with in sleeve and is used for the telescoping heat-obtaining of cooling heat catalyzer and restrains vis-a-vis.Housing inboard with sleeve outside between annulus, turn back to the passage of revivifier as cold catalyzer.In the bottom of annulus, be provided with and promote the wind coil pipe.
The material of above-mentioned three types of catalyst coolers is chosen according to the medium characteristics.The sleeve outer wall of telescoping heat-obtaining tube bank can be according to overall heat transfer coefficient, can adopt at sleeve outer wall to be with or without fin and other structural shape suitable, that help conducting heat.
In invention following advantage is arranged compared to existing technology:
1. the dedicated channel of cold catalyst transport is set in water cooler, compares, heat, cold catalyzer are flowed by artificial guiding, prevent thermocatalyst short circuit and the long stop of cold catalyzer, overcome of the restriction of catalyzer replacing velocity the water cooler height with the back-mixing formula.The passage of three kinds of structural shapes that the present invention provides hot simultaneously, cold catalyzer is taken their own roads.
2. passage is close conveying mutually, and available gas control method-lifting wind is regulated the catalyst recirculation amount neatly.Compare with upflowing, downflow system catalyst cooler, the single-linkage sliding valve and the catalyzer heat-resisting, wear resistance lining that can save costliness pass in and out pipeline, pipe fitting, FlexbleJoint etc.
3. heat-obtaining amount available stream wind transmission (containing loosening wind) or lifting wind are regulated.
4. the sleeve outer wall of telescoping heat-obtaining tube bank can adopt light pipe or have the pipe of fin according to the overall heat transfer coefficient decision.
5. heat-eliminating medium is a deaerated water, can adopt natural circulation, saves high pressured water circuling pump.
The drawing of accompanying drawing is described as follows:
Fig. 1 is an I type air controlled catalyst cooling apparatus with internal circulation structural representation.Among the figure: (1) housing, the tube bank of (2) telescoping heat-obtaining, (3) cold catalyzer returns the passage of revivifier, (4) promote airduct, (5) fluidized wind coil pipe, the blast inlet of (6) loosening thermocatalyst, (7) revivifier, (8) thermocatalyst enters, (9) cold catalyzer returns, and (10) promote the wind inlet, (11) fluidized wind inlet, (12) deaerated water inlet, the outlet of (13) steam.
Fig. 2 is an II type air controlled catalyst cooling apparatus with internal circulation structural representation.Among the figure: (1) housing, the tube bank of (2) telescoping heat-obtaining, (3) cold catalyzer returns the passage of revivifier, (4) promote airduct, (5) fluidisation airduct, (6) arc-shaped partition, (7) revivifier, (8) thermocatalyst enters, (9) cold catalyzer returns, and (10) promote the wind inlet, (11) fluidized wind inlet, (12) deaerated water inlet, the outlet of (13) steam.
Fig. 3 is an III type air controlled catalyst cooling apparatus with internal circulation structural representation.Among the figure: (1) housing, the tube bank of (2) telescoping heat-obtaining, (3) cold catalyzer returns the passage of revivifier, (4) promote the wind coil pipe, (5) promote wind coil pipe, (6) sleeve, (7) revivifier, (8) thermocatalyst enters, and (9) cold catalyzer returns, and (10) promote the wind inlet, (11) fluidized wind inlet, (12) deaerated water inlet, the outlet of (13) steam, (14) reducing section.
The present invention is described in further detail in conjunction with the accompanying drawings: Fig. 1 is the structural representation of I type air controlled catalyst cooling apparatus with internal circulation, and the upper end of its cylindrical housings (1) is connected with revivifier (7) bottom or lower wall.On the central axis of housing (1), be provided with the passage (3) that co-axial tubular cold catalyzer turns back to revivifier.The close phase section of revivifier (7) is inserted on the top of passage 3.The lower end of passage (3) is horn-like pipeline section, inserts to promote airduct (4) in horn-like pipeline section.Space between housing (1) and passage (3) is provided with telescoping heat-obtaining tube bank (2).Be provided with fluidized wind coil pipe (5) at housing (1) and bottom.On housing (1), be furnished with the blast inlet (6) of the loosening catalyzer of confession along the axis direction of housing (1).The working condition of-I type is such, enters and promotes the interior lifting wind of airduct (4), enters the interior fluidized wind of fluidized wind coil pipe (5), enters the loosening wind in the loosening catalyzer blast inlet (6), provides by pressurized air; Thermocatalyst flows into catalyst cooler by the close phase section bottom of revivifier (7) (or lower wall) by gravity, (enter telescoping heat-obtaining tube bank (2) with telescoping heat-obtaining tube bank (2) contact heat-exchanging that with the deaerated water is heat-eliminating medium by deaerated water inlet (12), deaerated water after heat exchange and vapour are flowed out by steam outlet (13)), flow to the bottom of water cooler by gravity through cooled catalyzer, in horn-like pipeline section owing to promote wind action, make the continuous in a steady stream admission passage (3) of cold catalyzer, turn back to the close phase section of revivifier (7) then.Water cooler portion thus fluidized wind and enter the intravital loosening wind regime of shell source and constantly enter space between the telescoping heat-obtaining tube bank (2), make catalyzer be in good flow state, prevent the dead or generation viscous flow of heap, thereby strengthened the speed of cooling heat catalyzer.
Fig. 2 is the structural representation of II type air controlled catalyst cooling apparatus with internal circulation, and the upper end of its cylindrical housings (1) is connected with revivifier (7) bottom or lower wall.There is an axial arc-shaped partition (6) that housing (1) is divided into two spaces of size in the housing (1).Section is that the little space of American football shape is the passage (3) that cooled catalyzer is got back to revivifier (7).Be provided with lifting airduct (4) in passage (3) bottom.Large space is provided with and is used for the telescoping heat-obtaining tube bank (2) of cooling heat catalyzer.Be provided with fluidized wind coil pipe (5) in the large space bottom.The close phase section of revivifier (7) is inserted on the top of arc-shaped partition (6).The working condition of II type is such, enters and promotes the interior lifting wind of airduct (4), enters the fluidized wind in the fluidized wind coil pipe (5), provides by pressurized air; Thermocatalyst flows into catalyst cooler by the close phase section bottom of revivifier (7) (or lower wall) by gravity, (enter telescoping heat-obtaining bundle (2) with telescoping heat-obtaining tube bank (2) contact heat-exchanging that with the deaerated water is heat-eliminating medium by deaerated water inlet (12), deaerated water after heat exchange and vapour are flowed out by steam outlet (13)), flow to the bottom of water cooler by gravity through cooled catalyzer, by promoting wind in the lifting airduct (4) of passage (3) bottom, cold catalyzer is returned the close phase section of revivifier (7) through passage (3).The fluidized wind of the interior large space part of housing (1) bottom enters the space between the telescoping heat-obtaining tube bank (2) continually, makes catalyzer be in good flow state, prevents that heap is dead or viscous flow takes place, thereby has strengthened the speed of cooling heat catalyzer.
Fig. 3 is the structural representation of III type air controlled catalyst cooling apparatus with internal circulation, and the upper end of its cylindrical housings (1) is connected with revivifier (7) bottom or lower wall.One sleeve (8) is arranged in the housing (1), the close phase section of revivifier (7) is inserted on the top of this sleeve (8), its lower end be uncovered reducing section (14) with the fluidized wind coil pipe (5) of water cooler bottom vis-a-vis, in sleeve (8), be provided with telescoping heat-obtaining tube bank (2).Between housing (1) and the sleeve (8) is annulus, and this annulus is a cold catalyzer backward channel (3).In the annulus bottom, be provided with and promote wind coil pipe (4).The working condition of III type is such, enters the lifting wind that promotes in the wind coil pipe (4), the fluidized wind that enters fluidized wind coil pipe (5), provides by pressurized air; Thermocatalyst flows into catalyst cooler by the close phase section bottom of revivifier (7) (or lower wall) by gravity, (enter telescoping heat-obtaining tube bank (2) with telescoping heat-obtaining tube bank (2) contact heat-exchanging that with the deaerated water is heat-eliminating medium by deaerated water inlet (12), deaerated water after heat exchange and vapour are flowed out by steam outlet (13)), flow to the bottom of water cooler by gravity through cooled catalyzer.Lifting wind by in the lifting wind coil pipe (4) of passage (3) bottom returns cold catalyzer to the close phase section of revivifier (7) through passage (3).Fluidized wind is imported space between the telescoping heat-obtaining tube bank (2) continuously through the fluidized wind coil pipe (5) of sleeve (6) bottom, make catalyzer be in good flow state, prevent that heap is dead or viscous flow takes place, thereby strengthened the speed of cooling heat catalyzer.
The thermal load (the heat-obtaining amount of unit time) of I, II, III type gas control internal-circulation type water cooler is mainly regulated by the air quantity of fluidized wind (containing loosening wind) and lifting wind.The sleeve outer wall of telescoping heat-obtaining tube bank can adopt to be with or without fin and other is suitable.The structural shape that helps conducting heat.
Claims (12)
1, in a kind of heavy oil catalytic cracking process, catalyst cooler-I type the air controlled catalyst cooling apparatus with internal circulation of catalyst regeneration cooling usefulness, it is characterized in that: the top of the cylindrical housings of water cooler (1) is connected with revivifier (7) bottom (or lower wall), and is provided with the passage that thermocatalyst enters (8) in the housing (1); Be provided with the backward channel (3) and the telescoping heat-obtaining tube bank (2) of cold catalyzer in the housing (1); Be provided with lifting airduct (3) and fluidized wind coil pipe (5) in housing (1) bottom; On housing (1) wall, be provided with the blast inlet (6) of loosening wind.
2, water cooler according to claim 1 is characterized in that: the central axis of cold catalyst channels (3) is coaxial with the central axis of housing (1), and the close phase section of revivifier (7) is inserted on the top of passage (3), and the lower end is horn-like pipeline section.
3, water cooler according to claim 2 is characterized in that: insert riser tube co-axial with it (4) in the horn-like pipeline section in the lower end of passage (3).
4, water cooler according to claim 1 is characterized in that: the space between housing (1) and passage (3) is provided with telescoping heat-obtaining tube bank (2).
5, water cooler according to claim 1 is characterized in that: coaxial at fluidized wind coil pipe (5) and housing (1) that housing (1) bottom is provided with.
6, water cooler according to claim 1 is characterized in that: on the wall of housing (1), be provided with loosening wind blast inlet (6) along the axis direction of housing (1).
7, in a kind of heavy oil catalytic cracking process, catalyst cooler-II type the air controlled catalyst cooling apparatus with internal circulation of catalyst regeneration cooling usefulness, it is characterized in that: the top of cylindrical housings (1) is connected with revivifier (7) bottom (or lower wall), and is provided with the passage that thermocatalyst enters (8) in the housing (1); The little space that housing (1) one side and arc-shaped partition (6) are formed is a cold catalyzer backward channel (3), promotes the bottom that airduct (4) is located at passage (3); One upright arc-shaped partition (6) and telescoping heat-obtaining tube bank (2) is arranged in the housing (1); The bottom of housing (1) is provided with fluidized wind coil pipe (5) and promotes airduct (4).
8, water cooler according to claim 7 is characterized in that: telescoping heat-obtaining tube bank (2) is in the large space that the opposite side and the arc-shaped partition (6) of housing (1) are formed; In the bottom of this large space, be provided with and the co-axial fluidized wind coil pipe of housing (1) (5).
9, in a kind of heavy oil catalytic cracking process, catalyst cooler-III type the air controlled catalyst cooling apparatus with internal circulation of catalyst regeneration cooling usefulness, it is characterized in that: the top of cylindrical housings (1) is connected with revivifier (7) bottom (or lower wall), and is provided with the passage that thermocatalyst enters (8) in the housing (1); Inboard and sleeve (6) the outside composition cold catalyzer backward channel (3) (being annulus) of housing (1); Be provided with and the co-axial lifting wind of housing coil pipe (4) in the bottom of passage (3); One sleeve (6) is arranged in the housing (1), in sleeve (6), be provided with telescoping heat-obtaining tube bank (2); Be provided with fluidized wind coil pipe (5) in housing (1) bottom and promote wind coil pipe (4).
10, water cooler according to claim 9 is characterized in that: the central axis of the central axis of sleeve (6) and housing (1) is coaxial; In sleeve (6), be provided with telescoping heat-obtaining tube bank (2).
11, water cooler according to claim 9 is characterized in that: the lower end of sleeve (6) is an open reducing section (14), is provided with and the co-axial fluidized wind coil pipe of housing (1) (5) facing to reducing section (14).
12, according to claim 1,7,9 described water coolers, it is characterized in that: the sleeve outer wall of telescoping heat-obtaining tube bank (2), can adopt to be with or without fin and other structure formation that is suitable for conducting heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103413 CN1015901B (en) | 1990-07-10 | 1990-07-10 | Air controlled catalyst cooling apparatus with internal circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103413 CN1015901B (en) | 1990-07-10 | 1990-07-10 | Air controlled catalyst cooling apparatus with internal circulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1047328A CN1047328A (en) | 1990-11-28 |
| CN1015901B true CN1015901B (en) | 1992-03-18 |
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ID=4878050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90103413 Expired CN1015901B (en) | 1990-07-10 | 1990-07-10 | Air controlled catalyst cooling apparatus with internal circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015901B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041320C (en) * | 1992-06-15 | 1998-12-23 | 樊有杰 | Natural gulf red priming paint with rust |
| DE10225929A1 (en) | 2002-06-11 | 2003-12-24 | Basf Ag | Two-stage process for the production of butanediol with intermediate separation of succinic anhydride |
| DE10225927A1 (en) | 2002-06-11 | 2003-12-24 | Basf Ag | Process for the production of butanediol by combined gas phase and liquid phase synthesis |
| CN101274245B (en) * | 2007-03-28 | 2010-09-01 | 中国石油大学(北京) | Annular space air-lift gas-solid loop flow reactor |
| CN111609736A (en) * | 2019-02-26 | 2020-09-01 | 中石化广州工程有限公司 | Regenerator built-in heat collector |
-
1990
- 1990-07-10 CN CN 90103413 patent/CN1015901B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1047328A (en) | 1990-11-28 |
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Legal Events
| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| CI01 | Correction of invention patent gazette |
Correction item: Inventor Correct: Zhang Fudai False: Zhang Fuzhi Number: 48 Page: 50 Volume: 6 |
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| ERR | Gazette correction |
Free format text: CORRECT: INVENTOR; FROM: ZHANG FUZHI TO: ZHANG FUYI |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: China Petrochemical Corporation (SINOPEC) Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: China Petrochemical Corporation (SINOPEC) Document name: Notification of Termination of Patent Right |