CN102513033A - Fixed-bed catalytic reactor - Google Patents
Fixed-bed catalytic reactor Download PDFInfo
- Publication number
- CN102513033A CN102513033A CN2011103725254A CN201110372525A CN102513033A CN 102513033 A CN102513033 A CN 102513033A CN 2011103725254 A CN2011103725254 A CN 2011103725254A CN 201110372525 A CN201110372525 A CN 201110372525A CN 102513033 A CN102513033 A CN 102513033A
- Authority
- CN
- China
- Prior art keywords
- basket
- catalyst
- bed
- baskets
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention relates to a fixed-bed catalytic reactor comprising a cylinder body, wherein at least two catalyst baskets in up-and-down arrangement are arranged in the cylinder body; a catalyst basket at the top comprises an axial bed and a radial bed, wherein an axial/radial converting distributor is arranged between the axial bed and the radial bed; and the catalyst baskets except for the catalyst basket at the top comprise basket covers. A plurality of catalyst baskets are arranged in the cylinder body of the reactor, and each catalyst basket can be independently taken out; the step-by-step replacement of catalysts is convenient, and the effects of fully utilizing the resources of the catalysts and saving the use quantity of the catalysts are achieved; because the catalyst basket at the top is provided with one axial bed, the axial bed can act as a filtering function when the components of harmful gas are higher; the circumferential sides close to cover plate units on the basket covers of the catalyst baskets are not provided with baffle plates, so that a small part of gas can pass through the cover plate units on the basket covers of the catalyst baskets; after the gas enters cover plates and flows into the catalyst baskets by screen plates, the gas passes through the catalysts at the tops in the catalyst baskets, so that the catalysts at the tops in the catalyst baskets are utilized, and the utilization efficiency of the catalysts is enhanced; and therefore, a higher net product value is obtained.
Description
Technical field
The present invention relates to a kind of reactor that is used for fixing a catalyst system and catalyzing, belong to chemical industry, field of mechanical technique.
Background technology
Traditional fixed bed reaction; Owing to have the gas that makes catalyst poisoning in the unstrpped gas of participating in reacting; Perhaps since in producing misoperation etc. cause the temporary or permanent poisoning of catalyst; Thereby influenced life of catalyst, and one of shortcoming of fixed bed is the replacing inconvenience of catalyst.Traditional fixed bed reactor catalyst is changed the main catalyst self-tipping type that adopts of technology; Catalyst self-unloading hole promptly is set below fixed bed reactors, when by the time needing more catalyst changeout, opens catalyst self-unloading hole; Catalyst is realized the replacing of catalyst because deadweight is drawn off by the self-unloading hole.
The shortcoming that existing fixed bed reactor catalyst is changed technology is: 1. as long as more catalyst changeout just must be changed whole catalyst; Because the flow process of gas has determined that the catalyst of different beds is inconsistent service life; Do not reach the yet replacing in service life, cause the wasting of resources; 2. all the replacing of catalyst causes the duration lengthening of driving once more, causes the certain economic loss; 3. because possibly there are situation such as sintering in catalyst, block the self-unloading hole, strengthened the difficulty of self-unloading, prolong the duration; 4. because conditions such as high temperature, high pressure, hydrogen-type corrosion cause the internals damage, traditional fixed bed maintenance and replacing internals are difficulty very.
Summary of the invention
The present invention has overcome deficiency of the prior art, provides a kind of rational in infrastructure, and the fixed bed catalytic reactor of the utilization ratio of catalyst can be dismantled, improved to beds respectively.
Technical scheme of the present invention is following:
A kind of fixed bed catalytic reactor comprises cylindrical shell, is provided with at least two baskets that are arranged above and below in the cylindrical shell, and the bottom of basket is provided with convexity, and the relevant position of cylindrical shell is provided with and is used for placing protruding groove; The basket at top comprises axial bed and the radially bed that is positioned at below the axial bed, axial bed and radially be provided with the diameter of axle between the bed to the transition distributions device, and all the other baskets all adopt radially bed; All the other baskets comprise the basket lid except that the basket at top; Said basket lid comprises lid; Along the cover plate unit that the lid circumferencial direction is arranged, said cover plate unit is provided with sieve plate except that being equipped with baffle plate away from all the other each sides the lid central side between cover plate unit and the lid.
As improvement, basket comprises three in the cylindrical shell.
As improvement, the top of said basket is provided with the hanger that is used to lift.
As improvement, be provided with circular airtight and watertight padding in the said groove, make groove be connected more closely knit with convexity.
As improvement, said lid is provided with suspension ring, opens basket through suspension ring, conveniently basket is carried out dismounting and maintenance.
As improvement, in the cylindrical shell except that the basket of bottom all the other baskets be equipped with heat exchanger.
As improvement, each basket is equipped with heat exchanger in the cylindrical shell, is equipped with heat exchanger in each basket, has effectively improved the uniformity that reactor temperature distributes, and has improved the utilization rate of catalyst.
The present invention is provided with a plurality of baskets in reactor shell; Each basket can take out separately; Not only be convenient to more catalyst changeout of substep, reach the effect that makes full use of catalyst resource and saving catalyst amount, and made things convenient for the inner maintenance of fixed bed reactors and changed internals; Basket adopts protruding the connection with the groove of cylindrical shell to replace welding, fiery, the charged danger of band when having avoided dismounting; Because the top basket has an axial bed, so that when the pernicious gas composition is higher, can play a filtration; The cover plate unit that the basket basket covers does not have baffled near circumference; The gas of fraction is passed through; After gas gets into the inflow of cover plate process sieve plate,, make the catalyst of basket inner top obtain utilizing through the catalyst of basket inner top; Improve the utilization ratio of catalyst, thereby obtain higher product net value.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 for A portion among Fig. 1 remove behind the heat exchanger enlarged drawing;
Fig. 3 is basket basket lid structural representation of the present invention;
Fig. 4 is the B-B profile among Fig. 3;
Fig. 5 is the gas flow figure of overall diameter when beds uses traditional basket basket lid;
Fig. 6 is the gas flow figure of overall diameter when beds uses basket basket of the present invention to cover.
Wherein: 1 is cylindrical shell, and 2 is basket, and 3 is axial bed, and 4 are bed radially, and 5 is heat exchanger, 6 be the diameter of axle to the transition distributions device, 7 is groove, 8 is protruding, 9 is hanger, 10 is lid, 11 is the cover plate unit, 12 sieve plates, 13 is baffle plate, 14 is suspension ring.
The specific embodiment
Specify the present invention below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2; Fixed bed catalytic reactor of the present invention comprises cylindrical shell 1, is provided with 3 baskets that are arranged above and below 2 in the cylindrical shell 1; The quantity of basket can come to decide as required in the cylindrical shell 1; Bottom basket and cylindrical shell 1 are wholely set, and the bottom of all the other baskets is provided with convexity 8 except that the basket of bottom, and the relevant position of cylindrical shell 1 is provided with and is used for placing protruding 8 groove 7; The bottom of bottom basket also can be provided with convexity 8, and the relevant position of cylindrical shell 1 is provided with groove 7, is provided with circular filler in the groove 7, and the top of basket 2 also is provided with the hanger 9 that is used to lift, and only needs that basket is hung out cylindrical shell and carries out more catalyst changeout; When the bottom basket was not established convexity, itself and cylindrical shell were wholely set, and the bottom of bottom basket can be provided with dumping pit 3; More during catalyst changeout, other baskets are hung out cylindrical shell change, the basket of bottom only need be opened dumping pit 3, the catalyst of the inside is drawn off, and then change the catalyst of the inside.
In the cylindrical shell 1 except the basket of bottom the center of all the other baskets all be provided with heat exchanger 5; The bottom basket can be provided with heat exchanger as required; Adopt labyrinth seal to connect between the central tube of heat exchanger; Heat exchanger in heat exchanger in the basket of top and the middle basket can also can be connected in parallel connection, and the heat exchanger in the middle basket is connected with the heat exchanger in the basket of bottom.
Referring to Fig. 1; The basket of cylindrical shell 1 inner top comprises axial bed 3 and bed 4 radially; The whole basket that also can be the top all adopts axial bed; All the other baskets all adopt radially bed, and axially bed 3 accounts for 10% of bed length overall in the cylindrical shell 1, axial bed 3 of the present invention and radially bed 4 all adopt known structure of the prior art; Axial bed 3 and radially be provided with the diameter of axle between the bed 4 to transition distributions device 6; The transition distributions device of described diameter of axle routine in transition distributions device 6 employing this areas; Gas mixes with the next gas in the external world to transition distributions device 6 at the diameter of axle after axial bed comes out; Mixed gas temperature is evenly distributed, and getting into radially from this diameter of axle effluent air to transition distributions device 6, bed reacts.
All the other baskets comprise the basket lid except that the top layer basket; Basket lid structure is referring to Fig. 3 and Fig. 4, and said basket lid comprises lid 10, and lid 10 is provided with suspension ring 14; Lid 10 circumferencial directions are provided with the cover plate unit 11 of 4 fan annulars; Cover plate unit 11 also can be that cover plate unit 11 is provided with the baffle plate of being with through hole away from lid 10 central sides except that being equipped with baffle plate 13 away from all the other each sides lid 10 central sides, is provided with sieve plate 12 between cover plate unit 11 and the lid 10.Traditional overall diameter is that the top of basket is provided with the envelope gas-bearing formation to reactor; Its gas flow is as shown in Figure 5; Purpose is to control gas flow, make gas do not walk axially, by radially through beds, the part catalyst at its top since do not have gas through and can not be utilized; Adopt basket basket lid of the present invention; When gas flows into; Cover plate unit 2 will make the gas of fraction pass through away from a side at lid 1 center, and the gas that passes through is through flowing into the catalyst of basket inner top behind the sieve plate, and concrete gas flow makes the catalyst of basket inner top obtain utilizing referring to Fig. 6; Improve the utilization ratio of catalyst, thereby obtain higher product net value.
Certainly, more than only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (7)
1. a fixed bed catalytic reactor is characterized in that comprising cylindrical shell, is provided with at least two baskets that are arranged above and below in the cylindrical shell, and the bottom of basket is provided with convexity, and the relevant position of cylindrical shell is provided with and is used for placing protruding groove; The basket at top comprises axial bed and the radially bed that is positioned at below the axial bed, axial bed and radially be provided with the diameter of axle between the bed to the transition distributions device, and all the other baskets all adopt radially bed; All the other baskets comprise the basket lid except that the basket at top; Said basket lid comprises lid; Along the cover plate unit that the lid circumferencial direction is arranged, said cover plate unit is provided with sieve plate except that being equipped with baffle plate away from all the other each sides the lid central side between cover plate unit and the lid.
2. fixed bed catalytic reactor according to claim 1 is characterized in that said basket comprises three.
3. fixed bed catalytic reactor according to claim 1 is characterized in that the top of said basket is provided with hanger.
4. fixed bed catalytic reactor according to claim 1 is characterized in that being provided with in the said groove circular airtight and watertight padding.
5. fixed bed catalytic reactor according to claim 1 is characterized in that said lid is provided with suspension ring.
6. according to the described fixed bed catalytic reactor of the arbitrary claim of claim 1 to 5, it is characterized in that all the other baskets are equipped with heat exchanger except that the basket of bottom.
7. according to the described fixed bed catalytic reactor of the arbitrary claim of claim 1 to 5, it is characterized in that each basket is equipped with heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103725254A CN102513033B (en) | 2011-11-22 | 2011-11-22 | Fixed-bed catalytic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103725254A CN102513033B (en) | 2011-11-22 | 2011-11-22 | Fixed-bed catalytic reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102513033A true CN102513033A (en) | 2012-06-27 |
| CN102513033B CN102513033B (en) | 2013-12-04 |
Family
ID=46284250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103725254A Active CN102513033B (en) | 2011-11-22 | 2011-11-22 | Fixed-bed catalytic reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102513033B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8305593A1 (en) * | 1982-07-13 | 1983-05-01 | Ammonia Casale Sa | Reactor for heterogeneous catalytic synthesis |
| CN2067184U (en) * | 1990-06-21 | 1990-12-12 | 清华大学 | Energy-saving axial-radial flow reactor for inhomogeneous catalytic synthesis |
| CN2071983U (en) * | 1990-10-06 | 1991-02-27 | 湖南省化肥工业公司 | Separate self-unloading catalyst internal device for synthetic tower |
| CN1144713A (en) * | 1994-12-28 | 1997-03-12 | 三井石油化学工业株式会社 | Gas distributor plate for gas phase polymerization apparatus |
-
2011
- 2011-11-22 CN CN2011103725254A patent/CN102513033B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8305593A1 (en) * | 1982-07-13 | 1983-05-01 | Ammonia Casale Sa | Reactor for heterogeneous catalytic synthesis |
| CN2067184U (en) * | 1990-06-21 | 1990-12-12 | 清华大学 | Energy-saving axial-radial flow reactor for inhomogeneous catalytic synthesis |
| CN2071983U (en) * | 1990-10-06 | 1991-02-27 | 湖南省化肥工业公司 | Separate self-unloading catalyst internal device for synthetic tower |
| CN1144713A (en) * | 1994-12-28 | 1997-03-12 | 三井石油化学工业株式会社 | Gas distributor plate for gas phase polymerization apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102513033B (en) | 2013-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106475018B (en) | Fixed bed reactors and its gas distributor | |
| CN204638160U (en) | A kind of overall diameter containing multistage insulation layer is to water shifting heat shift-converter | |
| CN204933425U (en) | A kind of calandria type fixed bed reactor of benzene oxidatoin cis-butenedioic anhydride | |
| CN106475015B (en) | Particulate matter bed support construction and axis radial catalystic reactor | |
| CN202555257U (en) | Radial or axial-radial fixed bed reactor with support type slotted hole plate distributor | |
| CN204865839U (en) | Nitrobenzene liquid -phase hydrogenatin system aniline reaction unit | |
| CN202516537U (en) | Double-axial and radial flow reactor | |
| CN102513033B (en) | Fixed-bed catalytic reactor | |
| CN202427425U (en) | Fixed bed type reactor | |
| CN208824454U (en) | Gas feed distributor | |
| CN201848233U (en) | External-circulation and parallel-flow tube array type fixed-bed reactor | |
| CN204522947U (en) | For paste state bed reactor and the reaction system of preparing ethylene by selective hydrogenation of acetylene | |
| CN202315853U (en) | Full-radial detachable static bed catalytic reactor | |
| CN204093420U (en) | Hydrogenation reactor | |
| CN202315852U (en) | Catalyst basket cover | |
| CN202860502U (en) | Vertical type water-cooled tube reactor | |
| CN108854857B (en) | Flow guide type support grid for reactor catalyst bed layer and fluidized bed reactor | |
| CN110327847A (en) | Radial Flow heat exchange type fixed bed catalytic reactor | |
| CN109022052B (en) | Self-heating purifying furnace | |
| CN106475016A (en) | Particulate matter bed supporting construction and axial-radial flow reactor | |
| CN202700474U (en) | Static bed axial radical reactor with calandria wall type inner and outer barrels | |
| CN201684584U (en) | A vinyl acetate reactor | |
| CN203389619U (en) | Total-radial fixed bed catalytic reactor | |
| CN203002349U (en) | Reforming reactor sector cylinder | |
| CN201493094U (en) | Central tube of reformation and isomerization reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |