CN216572153U - MTO device product gas catalyst filter system - Google Patents
MTO device product gas catalyst filter system Download PDFInfo
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- CN216572153U CN216572153U CN202220132677.0U CN202220132677U CN216572153U CN 216572153 U CN216572153 U CN 216572153U CN 202220132677 U CN202220132677 U CN 202220132677U CN 216572153 U CN216572153 U CN 216572153U
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Abstract
The utility model discloses a MTO device product gas catalyst filter system, including filter and collection tank, the filter internal diameter is by top position fixedly connected with metal film filter core, the filter right side is by top position to run through and fixedly connected with filters the gas port, filter top left side position runs through and fixedly connected with back-blowing gas mouth, the filter left side is by bottom position to run through and the first replacement nitrogen gas port of fixedly connected with, collection tank top right side position runs through and fixedly connected with exhaust-gas treatment mouth. The utility model discloses in, the online blowback filter of high temperature gas-solid, inside filter element comprises multiunit metal film filter core, can realize that the filter utilizes pure gas to carry out the blowback in proper order to filter element grouping under the condition that does not stop. The filter can realize on-line automatic back flushing under the condition of no stopping to regenerate the metal film filter element.
Description
Technical Field
The utility model relates to a filtration system's technical field especially relates to a MTO device product gas catalyst filter system.
Background
MTO (methanol to olefin), namely methanol gas is introduced into a reactor, the methanol gas is dehydrated under the action of a catalyst to form MTO product gas, the main components of the MTO product gas are ethylene, propylene and water vapor, certainly, some byproducts and fine catalyst dust can be mixed in the MTO product gas, the particle size of the catalyst dust is 0-60 um after passing through a cyclone system generally, and the concentration of the catalyst dust is about 3.8g/Nm3 after passing through the cyclone system generally.
Traditional cyclone system still contains a small amount of catalyst fines when using, and the scale deposit behind quench tower and the scrubbing tower is more serious to the catalyst, especially at the scrubbing tower, and organic accessory substance also can condense, with the catalyst scale deposit together at the tray, and what the scrubbing tower was stifled can be more serious, also leads to the separation degree of difficulty of reuse water to increase simultaneously, increases substantially the device energy consumption.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art and providing an MTO device product gas catalyst filter system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a gas catalyst filter system for an MTO device product comprises a filter and a collecting tank, wherein the inner diameter of the filter is fixedly connected with metal membrane filter cores by the top position, the right side of the filter is penetrated and fixedly connected with a filtering gas port by the top position, the left side of the top of the filter is penetrated and fixedly connected with a back-blowing gas port, the left side of the filter is penetrated and fixedly connected with a first replacement nitrogen port by the bottom position, the right side of the top of the collecting tank is penetrated and fixedly connected with a tail gas treatment port, the top of the left side of the collecting tank is penetrated and fixedly connected with a pressure equalizing gas port, the left side of the collecting tank is penetrated and fixedly connected with a second replacement nitrogen port by the bottom position, one end of the back-blowing gas port is fixedly connected with a flow dividing pipe, the flow dividing pipe and the back-blowing gas port are mutually penetrated and fixedly connected, uniformly distributed gas outlets are fixedly connected with the bottom of the flow dividing pipe and correspond to the metal membrane filter cores, and the left side of the air outlet is provided with an electromagnetic valve in a penetrating way.
As a further description of the above technical solution:
the middle position of the bottom of the first replacement nitrogen port penetrates through and is fixedly connected with a gas port to be filtered.
As a further description of the above technical solution:
the middle position of the bottom of the filter is penetrated and fixedly connected with a discharge opening.
As a further description of the above technical solution:
the left side position of collection tank top runs through and fixedly connected with feed inlet.
As a further description of the above technical solution:
the top position of the right side of the filter penetrates through and is fixedly connected with an exhaust port.
As a further description of the above technical solution:
the top position of the left side of the filter penetrates through and is fixedly connected with a condensed water inlet.
As a further description of the above technical solution:
the middle position of the bottom of the collecting tank is penetrated and fixedly connected with a discharge hole.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, at first, high temperature waits to strain gas and gets into the filter under the system pressure effect, high temperature gas gets into follow-up device after passing the micropore of metal film filter core, and solid impurity in the gas is then filtered the interception at the filter core surface by the metal film filter core, thereby form the filter cake layer at metal film filter core surface, it risees gradually to filter the pressure differential simultaneously, when reaching the filtration time or the pressure differential of settlement, carry out the blowback of grouping in proper order to multiunit metal film filter core filter element with pure blowback gas, make the metal film filter core regeneration.
2. The utility model discloses in, during the blowback, the blowback mouth is opened, if need which group's metallic membrane filter core of blowback, can open corresponding gas outlet through the solenoid valve, thereby carry out blowback work to corresponding metallic membrane filter core, the blowback only has a set of filter core at the blowback at every turn, other group's filter cores are filtering, need not the parking during the blowback, several cycles of blowback are after, need discharge the accumulational solid powder of filter bottom cone, intercept product gas solid body granule completely, reduce the solid content of water system, reduce the pipeline, tower tray blocks up the risk, greatly stable production.
Drawings
FIG. 1 is a schematic diagram of a MTO unit product gas catalyst filter system according to the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
Illustration of the drawings:
1. a filter; 2. a metal membrane filter element; 3. a filtering air port; 4. an exhaust port; 5. an electromagnetic valve; 6. a blowback port; 7. a condensed water inlet; 8. a first replacement nitrogen port; 9. an air port to be filtered; 10. a discharge opening; 11. a collection tank; 12. a pressure equalizing air port; 13. a second replacement nitrogen port; 14. a discharge port; 15. a tail gas treatment port; 16. a feed inlet; 17. a shunt tube; 18. and an air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, the present invention provides an embodiment: a gas catalyst filter system for an MTO device product comprises a filter 1 and a collecting tank 11, wherein a metal membrane filter element 2 is fixedly connected to the inner diameter of the filter 1 by the top position, a filtering air port 3 is penetrated and fixedly connected to the right side of the filter 1 by the top position, a back-blowing air port 6 is penetrated and fixedly connected to the left side of the top of the filter 1 by the bottom position, a first replacement nitrogen port 8 is penetrated and fixedly connected to the left side of the filter 1 by the bottom position, a tail gas treatment port 15 is penetrated and fixedly connected to the right side of the top of the collecting tank 11, a pressure equalizing air port 12 is penetrated and fixedly connected to the top position of the left side of the collecting tank 11, a second replacement nitrogen port 13 is penetrated and fixedly connected to the left side of the collecting tank 11 by the bottom position, a shunt pipe 17 is fixedly connected to one end of the back-blowing air port 6, the shunt pipe 17 is mutually communicated with the back-blowing air port 6, uniformly distributed gas outlets 18 are penetrated and fixedly connected to the bottom of the shunt pipe 17, and the gas outlets 18 are mutually corresponding to the metal membrane filter elements 2, the left side of the gas outlet 18 is penetrated and provided with an electromagnetic valve 5, high-temperature gas to be filtered enters the filter 1 under the action of system pressure, the high-temperature gas enters a follow-up device after passing through the micropores of the metal film filter element 2, solid impurities in the gas are filtered and intercepted on the outer surface of the filter element by the metal film filter element 2, so that a filter cake layer is formed on the outer surface of the metal film filter element 2, meanwhile, the filtering pressure difference gradually rises, when the set filtering time or pressure difference is reached, pure blowback gas is used for sequentially carrying out grouping blowback on the multiple groups of metal film filter elements 2, and the metal film filter elements are regenerated.
The middle position of the bottom of a first replacement nitrogen port 8 penetrates through and is fixedly connected with a gas port 9 to be filtered, the middle position of the bottom of a filter 1 penetrates through and is fixedly connected with a discharge port 10, the left side position of the top of a collecting tank 11 penetrates through and is fixedly connected with a feed inlet 16, the top position of the right side of the filter 1 penetrates through and is fixedly connected with an exhaust port 4, the top position of the left side of the filter 1 penetrates through and is fixedly connected with a condensate water inlet 7, the middle position of the bottom of the collecting tank 11 penetrates through and is fixedly connected with a discharge port 14, during back flushing, a back flushing gas port 6 is opened, if the group of metal film filter cores 2 need to be back flushed, the corresponding gas outlet 18 can be opened through an electromagnetic valve 5, so that back flushing work is carried out on the corresponding metal film filter cores 2, only one group of filter cores is back flushed every time, other groups of filter cores are filtered, the filter cores do not need to stop during back flushing, after several back flushing cycles, solid powder accumulated at the bottom of the filter 1 needs to be discharged, the concrete unloading steps are as follows: pressure equalizing: the collection tank 11 is self-filled with hydrogen, the pressure increasing speed is controlled by using a pressure regulating valve until the pressure in the solid powder collection tank 11 is 0.3-0.4MPa lower than the pressure of the filter 1, and the hydrogen pressure control valve is closed; solid powder discharging: opening a disc valve from the bottom of the filter 1 to a solid powder collecting tank, and discharging solid powder accumulated at the bottom of the filter 1 to a collecting tank 11 through a feeding hole 16; ③ pressure relief: opening an exhaust valve of the collecting tank 11, and releasing the pressure to be lower than that of the filter 1 (0.3-0.4 MPa); discharging solid powder: re-opening the disc valve from the bottom of the filter 1 to the solid powder collecting tank 11 for complete solid powder discharge in the filter 1, wherein the pressure in the silicon powder collecting tank 11 will rise rapidly if the discharge is smooth, and if the discharge is blocked, the pressure will rise slowly, and recovering and regenerating the catalyst: returning the catalyst to a catalyst regeneration system for recycling, and replacing nitrogen: the collection tank was replaced with nitrogen and 5 to 7 times through the nitrogen replacement port.
The working principle is as follows: high-temperature gas to be filtered enters the filter 1 under the action of system pressure, the high-temperature gas enters a subsequent device after passing through micropores of the metal membrane filter element 2, solid impurities in the gas are filtered and intercepted on the outer surface of the filter element by the metal membrane filter element 2, so that a filter cake layer is formed on the outer surface of the metal membrane filter element 2, meanwhile, the filtering pressure difference is gradually increased, when the set filtering time or pressure difference is reached, pure back-blowing gas is used for sequentially carrying out grouped back-blowing on a plurality of groups of metal membrane filter element 2 filtering elements, the metal membrane filter elements are regenerated, a back-blowing gas port 6 is opened during back-blowing, if the group of metal membrane filter elements 2 needs to be back-blown, a corresponding gas outlet 18 can be opened through an electromagnetic valve 5, so that the back-blowing work is carried out on the corresponding metal membrane filter element 2, only one group of filter elements is back-blown each time, other groups of filter elements are filtered, the filter elements do not need to be stopped during back-blowing, after a plurality of cycles, solid powder accumulated at the bottom of cones of the filter 1 needs to be discharged, the concrete unloading steps are as follows: pressure equalizing: the collection tank 11 is self-filled with hydrogen, the pressure increasing speed is controlled by using a pressure regulating valve until the pressure in the solid powder collection tank 11 is 0.3-0.4MPa lower than the pressure of the filter 1, and the hydrogen pressure control valve is closed; discharging solid powder: opening a disc valve from the bottom of the filter 1 to a solid powder collecting tank, and discharging solid powder accumulated at the bottom of the filter 1 to a collecting tank 11 through a feeding hole 16; ③ pressure relief: opening an exhaust valve of the collecting tank 11, and releasing the pressure to be lower than that of the filter 1 (0.3-0.4 MPa); discharging solid powder: re-opening the disc valve from the bottom of the filter 1 to the solid powder collecting tank 11 for complete solid powder discharge in the filter 1, wherein the pressure in the silicon powder collecting tank 11 will rise rapidly if the discharge is smooth, and if the discharge is blocked, the pressure will rise slowly, and recovering and regenerating the catalyst: returning the catalyst to a catalyst regeneration system for recycling, and replacing nitrogen: the collection tank was replaced with nitrogen and 5 to 7 times through the nitrogen replacement port.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. An MTO unit product gas catalyst filter system comprising a filter (1) and a collection tank (11), characterized in that: the filter is characterized in that a metal membrane filter element (2) is fixedly connected to the inner diameter of the filter (1) close to the top position, a filtering air port (3) penetrates and is fixedly connected to the right side of the filter (1) close to the top position, a back-blowing air port (6) penetrates and is fixedly connected to the left side of the filter (1) close to the top position, a first replacement nitrogen port (8) penetrates and is fixedly connected to the left side of the filter (1) close to the bottom position, a tail gas treatment port (15) penetrates and is fixedly connected to the right side position of the top of the collection tank (11), a pressure-equalizing air port (12) penetrates and is fixedly connected to the top position of the left side of the collection tank (11), a second replacement nitrogen port (13) penetrates and is fixedly connected to the left side of the collection tank (11) close to the bottom position, a shunt pipe (17) is fixedly connected to one end of the back-blowing air port (6), and the shunt pipe (17) and the back-blowing air port (6) are mutually communicated, shunt tubes (17) bottom run through and fixedly connected with evenly distributed's gas outlet (18) and gas outlet (18) all correspond each other with each metal film filter core (2), gas outlet (18) left side all runs through and is provided with solenoid valve (5).
2. The MTO unit product gas catalyst filter system according to claim 1, wherein: the middle position of the bottom of the first replacement nitrogen port (8) penetrates through and is fixedly connected with a gas port (9) to be filtered.
3. The MTO unit product gas catalyst filter system according to claim 1, wherein: the middle position of the bottom of the filter (1) is penetrated and fixedly connected with a discharge opening (10).
4. The MTO unit product gas catalyst filter system according to claim 1, wherein: the left side position of the top of the collecting tank (11) penetrates through and is fixedly connected with a feeding hole (16).
5. The MTO unit product gas catalyst filter system according to claim 1, wherein: the top position of the right side of the filter (1) penetrates through and is fixedly connected with an exhaust port (4).
6. The MTO unit product gas catalyst filter system according to claim 1, wherein: the top position of the left side of the filter (1) penetrates through and is fixedly connected with a condensed water inlet (7).
7. The MTO unit product gas catalyst filter system according to claim 1, wherein: the middle position of the bottom of the collecting tank (11) penetrates through and is fixedly connected with a discharge hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220132677.0U CN216572153U (en) | 2022-01-19 | 2022-01-19 | MTO device product gas catalyst filter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220132677.0U CN216572153U (en) | 2022-01-19 | 2022-01-19 | MTO device product gas catalyst filter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216572153U true CN216572153U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220132677.0U Active CN216572153U (en) | 2022-01-19 | 2022-01-19 | MTO device product gas catalyst filter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216572153U (en) |
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- 2022-01-19 CN CN202220132677.0U patent/CN216572153U/en active Active
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Inventor after: Wang Zaixiong Inventor before: Wang Zaixiong |
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| CB03 | Change of inventor or designer information |