CN205886762U - Butane blender - Google Patents
Butane blender Download PDFInfo
- Publication number
- CN205886762U CN205886762U CN201620676822.6U CN201620676822U CN205886762U CN 205886762 U CN205886762 U CN 205886762U CN 201620676822 U CN201620676822 U CN 201620676822U CN 205886762 U CN205886762 U CN 205886762U
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- CN
- China
- Prior art keywords
- static mixer
- butane
- catalyst
- runner pipe
- mixing unit
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Abstract
The utility model discloses a butane blender, including first entry, mixing section, static mixer, the second entrance, runner pipe and export, the runner pipe communicates above -mentioned part with closed -loop's form in order, be equipped with mobile pump between mixing section and the static mixer, and the two inside catalyst mixing arrangement that all is equipped with, the export is located both sides with the runner pipe intercommunication and is equipped with first valve and second valve respectively. (1 ) butane blender divides division setting with mixing section and static mixer, and sets up catalyst mixing arrangement alone for the mixture of butane, air and catalyst is more abundant, and the reaction contact surface is wide, therefore the yield obtains improving, (2 ) butane blender in solved the probability of the stifled plug flow siphunculus of result through the mode that sets up multiple entry and many valves, (3 ) the utility model discloses set up mobile pump between mixing section and static mixer for the easily control of the gas flow rate and the flow direction.
Description
Technical field
This utility model belongs to maleic anhydride production technical field, is related to a kind of mixing arrangement, more particularly, to a kind of butane
Blender.
Background technology
Cis-butenedioic anhydride is a kind of conventional basic important Organic Chemicals, is the second largest anhydride being only second to phthalic anhydride in the world
Raw material, and product has quite extensive development and application prospect downstream.Cis-butenedioic anhydride is widely used in synthetic resin, lubricating oil adds
A series of important organic chemistry medicine such as agent, medicine, food additive, 1,4- butanediol, oxolane, succinic acid, fumaric acid
Product and fine chemicals.
At present, by raw material route, the production method of cis-butenedioic anhydride can be divided into benzene oxidatoin method, n butane oxidation method.Wherein, normal butane
Oxidizing process is occupied an leading position in maleic anhydride production, and its production capacity accounts for the 80% of world's cis-butenedioic anhydride total productive capacity.Suitable in the world
Acid anhydride mainly adopts n butane oxidation method to produce, and China's cis-butenedioic anhydride then mainly adopts benzene oxidatoin method to produce.
The core of maleic anhydride production technology for raw material, urged by the high temperature exothermic being occurred in fixed bed reactors with air, gas-solid phase
Oxidation.Raw material normal butane and air enter reactor after being sufficiently mixed by a certain percentage, urge having loaded some
React in the tubulation of agent, n-butane feed is usually 1.6～2.1mol%, reactor focus temperature with ratio of gas mixture
Degree is generally at 440～470 DEG C.Exothermic heat of reaction is removed by molten salt cooler and gas cooler, produces steam and uses for device.Instead
Recovery process is entered after gas cooling should be generated.In oxidation reaction process, normal butane enters reaction with the mixed gas of air
In device tube side, issue raw gas phase catalytic oxidation reaction in catalyst action, reactor is a vertical shell/tube-type reactor.?
Adopt a kind of potassium nitrate of melting and sodium nitrite mixture in reactor shell side, shifting heat is used as by pump for liquid salts reciprocation cycle cold
But medium.Exothermic heat of reaction is removed by fused salt.
Fixed bed reactors mostly are tubular structure, and heat transfer area is big, is conducive to strong exothermal reaction.For making stable reaction enter
Row is it is important to the temperature control of reactor thermophore fused salt.N butane oxidation reaction belongs to strong exothermal reaction, and yield of maleic anhydride is to temperature
Degree is sensitive, for large-scale reactor, ensures conversion ratio and high selectivity under high load capacity feed conditions.Additionally, fused salt temperature
Spend small change and can cause the larger change of reaction temperature, thus have influence on conversion ratio and selective change, finally affect
Yield to cis-butenedioic anhydride.
In prior art, in order to improve the yield of cis-butenedioic anhydride, on the one hand need to prevent from condensing blocking pipeline because of fused salt, on the one hand
Catalyst can be added in reactor.Said method still can not be fully solved what yield of maleic anhydride was greatly improved in practical operation
Technical barrier.
Content of the invention
The technical problem solving: in order to overcome the defect of prior art, obtain a kind of yield of maleic anhydride height, and be prevented from managing
The maleic anhydride production device of road blocking, this utility model provides a kind of butane blender.
Technical scheme: a kind of butane blender, including first entrance, mixing unit, static mixer, second entrance, circulation
Pipe and outlet, above-mentioned part is sequentially connected in the form of closed-loop path by described runner pipe；Described mixing unit and static mixer
Between be provided with flow pumps, and inside mixing unit and static mixer, be equipped with catalyst mixing arrangement；Described outlet and runner pipe
Connectivity part both sides are respectively equipped with the first valve and the second valve.
Preferably, described catalyst mixing arrangement includes catalyst storage tube and aeration head, and described catalyst storage tube is
Circulating line, aeration head is porous air blowing aluminium alloy structure, and uniformly arranges on catalyst storage tube.
Preferably, the equal diameters of described mixing unit and static mixer, and the diameter more than runner pipe.
Preferably, the ratio of the diameter d of the described mixing unit and static mixer and diameter m of runner pipe is 5～9.
Preferably, the spacing between described mixing unit and static mixer is 12～15 times of the diameter m of runner pipe.
Beneficial effect: mixing unit is provided separately by (1) butane described in the utility model blender with static mixer, and single
Solely, so that being more fully mixed of butane, air and catalyst, reaction contact is wide, thus receives for setting catalyst mixing arrangement
Rate is improved；(2) solved by way of multiple entry and many valves are set in butane blender described in the utility model
Product blocks the probability of runner pipe；(3) this utility model arranges flow pumps so that gas between mixing unit and static mixer
Flow velocity and flow to easily controllable.
Brief description
Fig. 1 butane mixer structure schematic diagram；
Fig. 2 is catalyst mixing arrangement structural representation；
Wherein, 1 is first entrance, and 2 is mixing unit, and 3 is catalyst mixing arrangement, and 4 is flow pumps, and 5 is static mixer,
6 is second entrance, and 7 is runner pipe, and 8 is the second valve, and 9 is outlet, and 10 is the first valve.
Specific embodiment
Following examples further illustrate present disclosure, but should not be construed as limitation of the present invention.Without departing substantially from
In the case of present invention spirit and essence, the modification that the inventive method, step or condition are made and replacement, belong to the present invention
Scope.If not specializing, the conventional meanses that in embodiment, technological means used are well known to those skilled in the art.
Embodiment 1
A kind of butane blender, including first entrance 1, mixing unit 2, static mixer 5, second entrance 6, runner pipe 7 and
Outlet 9, above-mentioned part is sequentially connected in the form of closed-loop path by described runner pipe 7；Described mixing unit 2 and static mixer 5
Between be provided with flow pumps 4, and be equipped with catalyst mixing arrangement 3 inside mixing unit 2 and static mixer 5；Described outlet 9 and stream
Siphunculus 7 connectivity part both sides are respectively equipped with the first valve 10 and the second valve 8.
Described catalyst mixing arrangement 3 includes catalyst storage tube 3-1 and aeration head 3-2, described catalyst storage tube 3-1
For circulating line, aeration head 3-2 is porous air blowing aluminium alloy structure, and uniformly arranges on catalyst storage tube 3-1.
Described mixing unit 2 and the equal diameters of static mixer 5, and the diameter more than runner pipe 7.
The ratio of the diameter d of the described mixing unit 2 and static mixer 5 and diameter m of runner pipe 7 is 5.
Spacing between described mixing unit 2 and static mixer 5 is 12 times of the diameter m of runner pipe 7.
During use, open first entrance 1, close second entrance 6, open the first valve 10, close the second valve 8, open
Flow pumps 4；By in Catalyst packing to catalyst mixing arrangement 3, butane is mixed with air proportion and defeated from first entrance 1
Deliver in mixing unit 2, open catalyst mixing arrangement 3, the catalyst that will be stored in catalyst storage tube 3-1 passes through aeration head
3-2 discharges to mixing unit 2, in mixing unit 2, after air, butane and catalyst mix homogeneously, in the presence of flow pumps 4
Enter in static mixer 5；In static mixer 5, open catalyst mixing arrangement 3, will be stored in catalyst storage tube 3-1
In catalyst discharged to static mixer 5 by aeration head 3-2, pass through the after mix homogeneously in the presence of flow pumps 4
One valve 10 is through outlet 9 discharge.
Embodiment 2
A kind of butane blender, including first entrance 1, mixing unit 2, static mixer 5, second entrance 6, runner pipe 7 and
Outlet 9, above-mentioned part is sequentially connected in the form of closed-loop path by described runner pipe 7；Described mixing unit 2 and static mixer 5
Between be provided with flow pumps 4, and be equipped with catalyst mixing arrangement 3 inside mixing unit 2 and static mixer 5；Described outlet 9 and stream
Siphunculus 7 connectivity part both sides are respectively equipped with the first valve 10 and the second valve 8.
Described catalyst mixing arrangement 3 includes catalyst storage tube 3-1 and aeration head 3-2, described catalyst storage tube 3-1
For circulating line, aeration head 3-2 is porous air blowing aluminium alloy structure, and uniformly arranges on catalyst storage tube 3-1.
Described mixing unit 2 and the equal diameters of static mixer 5, and the diameter more than runner pipe 7.
The ratio of the diameter d of the described mixing unit 2 and static mixer 5 and diameter m of runner pipe 7 is 9.
Spacing between described mixing unit 2 and static mixer 5 is 15 times of the diameter m of runner pipe 7.
During use, close first entrance 1, open second entrance 6, close the first valve 10, open the second valve 8, open
Flow pumps 4；By in Catalyst packing to catalyst mixing arrangement 3, butane is mixed with air proportion and from second entrance 6
It is delivered in static mixer 5, opens catalyst mixing arrangement 3, the catalyst that will be stored in catalyst storage tube 3-1 passes through
Aeration head 3-2 discharges to static mixer 5, in static mixer 5, after air, butane and catalyst mix homogeneously, in stream
Enter in mixing unit 2 in the presence of dynamic pump 4；In mixing unit 2, open catalyst mixing arrangement 3, will be stored in catalyst storage
Catalyst in pipe 3-1 is discharged to mixing unit 2 by aeration head 3-2, passes through the after mix homogeneously in the presence of flow pumps 4
Two valves 8 are through outlet 9 discharge.
Through the mixed product of butane blender described in embodiment 1～2, degree of mixing is (between fluid and average external volume ratio
Dimension criteria deviation) be respectively less than 0.7, and in traditional product, degree of mixing is about 10%.Visible from the above, this utility model
Described butane blender can improve the mixing efficiency of butane, air and catalyst.
Claims (5)
1. a kind of butane blender it is characterised in that include first entrance (1), mixing unit (2), static mixer (5), second
Entrance (6), runner pipe (7) and outlet (9), above-mentioned part is sequentially connected in the form of closed-loop path by described runner pipe (7)；Institute
State and be provided with flow pumps (4) between mixing unit (2) and static mixer (5), and mixing unit (2) and static mixer (5) inside are all
It is provided with catalyst mixing arrangement (3)；Described outlet (9) and runner pipe (7) connectivity part both sides be respectively equipped with the first valve (10) and
Second valve (9).
2. a kind of butane blender according to claim 1 is it is characterised in that described catalyst mixing arrangement (3) includes
Catalyst storage tube (3-1) and aeration head (3-2), described catalyst storage tube (3-1) is circulating line, and aeration head (3-2) is
Porous air blowing aluminium alloy structure, and in the upper uniformly arrangement of catalyst storage tube (3-1).
3. a kind of butane blender according to claim 1 is it is characterised in that described mixing unit (2) and static mixer
(5) equal diameters, and the diameter more than runner pipe (7).
4. a kind of butane blender according to claim 1 is it is characterised in that described mixing unit (2) and static mixer
(5) ratio of the diameter d and diameter m of runner pipe (7) is 5～9.
5. a kind of butane blender according to claim 1 is it is characterised in that described mixing unit (2) and static mixer
(5) spacing between is 12～15 times of the diameter m of runner pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676822.6U CN205886762U (en) | 2016-06-29 | 2016-06-29 | Butane blender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676822.6U CN205886762U (en) | 2016-06-29 | 2016-06-29 | Butane blender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205886762U true CN205886762U (en) | 2017-01-18 |
Family
ID=57770567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620676822.6U Expired - Fee Related CN205886762U (en) | 2016-06-29 | 2016-06-29 | Butane blender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205886762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469338A (en) * | 2018-07-02 | 2018-08-31 | 杭州银轮科技有限公司 | Visual mixer performance cold flow test bench |
| CN109621822A (en) * | 2018-12-29 | 2019-04-16 | 中润油新能源股份有限公司 | A kind of deployment device of Vehicular methanol petrol |
-
2016
- 2016-06-29 CN CN201620676822.6U patent/CN205886762U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469338A (en) * | 2018-07-02 | 2018-08-31 | 杭州银轮科技有限公司 | Visual mixer performance cold flow test bench |
| CN108469338B (en) * | 2018-07-02 | 2023-12-01 | 杭州银轮科技有限公司 | Visual mixer performance cold flow test bench |
| CN109621822A (en) * | 2018-12-29 | 2019-04-16 | 中润油新能源股份有限公司 | A kind of deployment device of Vehicular methanol petrol |
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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: 20170118 Termination date: 20180629 |