CN215288648U - Slurry bed reaction device for directly preparing olefin from synthesis gas - Google Patents
Slurry bed reaction device for directly preparing olefin from synthesis gas Download PDFInfo
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- CN215288648U CN215288648U CN202120416727.3U CN202120416727U CN215288648U CN 215288648 U CN215288648 U CN 215288648U CN 202120416727 U CN202120416727 U CN 202120416727U CN 215288648 U CN215288648 U CN 215288648U
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Abstract
The utility model relates to the technical field of chemical production equipment, in particular to a slurry bed reaction device for directly preparing olefin from synthesis gas, which comprises a reactor, wherein the inner cavity of the reactor is divided into an upper layer and a lower layer, the upper layer is a gas storage cavity, the lower layer is a liquid storage cavity, and a slurry catalyst is stored in the liquid storage cavity; the bottom of the reactor is communicated with an air inlet pipe, and a gas distributor is arranged at the position where the air inlet pipe is communicated with the reactor; a guide cylinder is arranged in a liquid storage cavity of the reactor; be provided with ejection of compact subassembly in the gas storage chamber of reactor, ejection of compact subassembly includes: the backflow shell, the discharge pipe and the feeding pipe are communicated with the top of the backflow shell and the bottom of the backflow shell. According to the slurry bed reaction device for directly preparing olefin from synthesis gas, part of reaction materials are cooled and refluxed by the discharging assembly until the reaction is full and then discharged, so that the utilization rate of the materials is improved, and the use is convenient.
Description
Technical Field
The utility model relates to a chemical production equipment technical field specifically is a slurry bed reaction unit of direct system alkene of synthetic gas.
Background
The gas-liquid-solid three-phase reaction system of gaseous, liquid and solid reaction materials is an important system, and for the purpose of reducing back mixing and improving the efficiency of the reactor, a gas lift type loop reactor is often used, such as a bioreactor, a fischer-tropsch synthesis and a process for directly preparing olefin by using synthesis gas.
At present, when a slurry bed reaction device used in the prior art discharges materials, the materials after reaction are discharged after the materials react in a reactor for a period of time according to experience, the discharged materials are partially reacted under most conditions, a discharge port is not provided with a reflux device, so that the materials are not fully reacted, the utilization rate of the materials is low, and the slurry bed reaction device is inconvenient to use. In view of this, we propose a slurry bed reactor for direct synthesis gas to olefin.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a slurry bed reaction unit of direct system alkene of synthetic gas to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a slurry bed reaction device for directly preparing olefin from synthesis gas comprises a reactor, wherein an inner cavity of the reactor is divided into an upper layer and a lower layer, the upper layer is a gas storage cavity, the lower layer is a liquid storage cavity, and a slurry catalyst is stored in the liquid storage cavity;
the bottom of the reactor is communicated with an air inlet pipe for introducing reaction materials, and a gas distributor is arranged at the position where the air inlet pipe is communicated with the reactor;
a guide cylinder is arranged in a liquid storage cavity of the reactor, the top opening of the guide cylinder is higher than the liquid level of the slurry catalyst, and the bottom opening of the guide cylinder is positioned above the gas distributor;
be provided with ejection of compact subassembly in the gas storage chamber of reactor, ejection of compact subassembly includes: the backflow shell, a discharge pipe communicated with the top of the backflow shell and a feeding pipe communicated with the bottom of the backflow shell;
wherein the upper end of the discharge pipe extends out of the reactor;
the bottom end of the feeding pipe extends into the guide cylinder and is positioned below the liquid level of the slurry catalyst.
Preferably, the backflow shell is in a spherical shell shape, a liquid leakage ring which is horizontally arranged is fixed on the inner wall of the backflow shell, and a cooling bucket is fixed on the inner ring of the liquid leakage ring.
Preferably, a plurality of through holes are formed in the liquid leakage ring;
the opening of the cooling bucket is arranged in a small-end-up manner, the upper end opening of the cooling bucket is communicated with the communicating position of the discharge pipe and the backflow shell, and the lower end opening of the cooling bucket is communicated with the communicating position of the feeding pipe and the backflow shell.
Preferably, the opening of the upper section of the guide shell is larger than the opening of the lower end, and a plurality of groups of air dispersing holes are formed in the side wall of the upper section of the guide shell.
Preferably, a heat exchanger is arranged on the inner wall of the liquid storage cavity of the reactor.
Compared with the prior art, the beneficial effects of the utility model are that: according to the slurry bed reaction device for directly preparing olefin from synthesis gas, after the synthesis gas for directly preparing olefin is introduced into the reactor, the synthesis gas is uniformly distributed in the liquid storage cavity through the gas distributor and reacts under the catalytic action of the slurry catalyst, and partial reacted materials are cooled and refluxed through the discharging assembly until the reaction is sufficient, so that the utilization rate of the materials is improved, and the use is convenient.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a middle draft tube of the present invention;
fig. 3 is a schematic structural view of the middle discharging component of the present invention.
In the figure: 1. a reactor; 11. a gas storage cavity; 12. a liquid storage cavity; 13. an air inlet pipe; 14. a heat exchanger; 2. a gas distributor; 3. a draft tube; 31. air diffusing holes; 4. a discharge assembly; 41. a reflow shell; 411. a liquid leakage ring; 412. a cooling hopper; 42. a discharge pipe; 43. and feeding the material pipe.
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 is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate. In the description of the present invention, "plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-3, the present invention provides a technical solution:
a slurry bed reaction device for directly preparing olefin from synthesis gas comprises a reactor 1, wherein an inner cavity of the reactor 1 is divided into an upper layer and a lower layer, the upper layer is a gas storage cavity 11, the lower layer is a liquid storage cavity 12, and a slurry catalyst is stored in the liquid storage cavity 12; the bottom of the reactor 1 is communicated with an air inlet pipe 13 for introducing reaction materials, and a gas distributor 2 is arranged at the position where the air inlet pipe 13 is communicated with the reactor 1; a guide cylinder 3 is arranged in a liquid storage cavity 12 of the reactor 1, the top opening of the guide cylinder 3 is higher than the liquid level of the slurry catalyst, and the bottom opening of the guide cylinder 3 is positioned above the gas distributor 2;
be provided with ejection of compact subassembly 4 in the gas storage chamber 11 of reactor 1, ejection of compact subassembly 4 includes: the reflux shell 41, a discharge pipe 42 communicated with the top of the reflux shell 41 and a feeding pipe 43 communicated with the bottom of the reflux shell 41; wherein, the upper end of the discharge pipe 42 extends out of the reactor 1; the bottom end of the feeding pipe 43 extends into the guide shell 3 and is positioned below the liquid level of the slurry catalyst, the backflow shell 41 is in a spherical shell shape, a horizontally arranged liquid leakage ring 411 is fixed on the inner wall of the backflow shell 41, and a cooling hopper 412 is fixed on the inner ring of the liquid leakage ring 411, so that the synthesis gas for directly preparing olefin is introduced into the liquid storage cavity 12 in the reactor 1 through the air inlet pipe 13 at the bottom of the reactor 1, the gaseous materials are uniformly distributed in the liquid storage cavity 12 through the gas distributor 2 and react under the action of the slurry catalyst, the ascending gaseous materials enter the gas storage cavity 11 and then enter the liquid storage cavity 12 again through the guide shell 3 for circular reaction until the reaction is complete, in the recycling process, part of the reacted gas rises into the backflow shell 41 through the feeding pipe 43 in a micro-bubble form, and part of the incompletely reacted materials are liquefied and attached in the process of contacting the inner wall of the backflow shell 41, and the liquid flows back into the liquid storage cavity 12 again along the downward sliding of the feeding pipe 43 to continue the reaction until the material reaction is sufficient, and the liquid leakage ring 411 and the cooling bucket 412 in the backflow shell 41 can increase the contact area with the incomplete material, so that a better backflow effect is achieved, the sufficient reaction of the material is facilitated, the utilization rate of the material is improved, and the use is facilitated.
It should be noted that a plurality of through holes are formed in the liquid leakage ring 411, so that the cooled and liquefied material can flow back into the liquid storage cavity 12 through the through holes in the liquid leakage ring 411; the opening of the cooling bucket 412 is arranged in a small-top and large-bottom manner, the upper end opening is communicated with the communication position of the discharge pipe 42 and the return shell 41, and the lower end opening is communicated with the communication position of the feed pipe 43 and the return shell 41.
Furthermore, the opening of the upper section of the guide shell 3 is larger than the opening of the lower end, and the side wall of the upper section of the guide shell 3 is provided with a plurality of groups of air diffusing holes 31, so that the materials circularly entering the guide shell 3 enter the liquid storage cavity 12 through the air diffusing holes 31 on the side wall.
Besides, the heat exchanger 14 is installed on the inner wall of the liquid storage cavity 12 of the reactor 1, so that the heat exchanger 14 can be used for providing proper reaction temperature for the catalytic reaction.
When the slurry bed reaction device for directly preparing olefin from synthesis gas is used, the synthesis gas for directly preparing olefin is introduced into the liquid storage cavity 12 in the reactor 1 through the gas inlet pipe 13 at the bottom of the reactor 1, gaseous materials are uniformly distributed in the liquid storage cavity 12 through the gas distributor 2 and react under the catalytic action of the slurry catalyst, the ascending gaseous materials enter the gas storage cavity 11 and then enter the liquid storage cavity 12 again through the guide cylinder 3 for circular reaction until the reaction is sufficient, in the circulating process, part of the reacted gaseous materials rise into the backflow shell 41 through the feeding pipe 43, the incompletely reacted materials are liquefied and attached in the process of contacting the inner wall of the backflow shell 41 and slide down again into the liquid storage cavity 12 along the feeding pipe 43 for continuous reaction until the materials react sufficiently, and the contact area between the incompletely reacted materials can be increased by the liquid leakage ring 411 and the cooling bucket 412 in the backflow shell 41, the reflux effect is better, the sufficient reaction of the materials is convenient, the utilization rate of the materials is improved, and the use is convenient.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A slurry bed reaction device for directly preparing olefin by synthesis gas comprises a reactor (1), and is characterized in that: the inner cavity of the reactor (1) is divided into an upper layer and a lower layer, the upper layer is a gas storage cavity (11), the lower layer is a liquid storage cavity (12), and a slurry catalyst is stored in the liquid storage cavity (12);
the bottom of the reactor (1) is communicated with an air inlet pipe (13) for introducing reaction materials, and a gas distributor (2) is arranged at the position where the air inlet pipe (13) is communicated with the reactor (1);
a guide cylinder (3) is arranged in a liquid storage cavity (12) of the reactor (1), the top opening of the guide cylinder (3) is higher than the liquid level of the slurry catalyst, and the bottom opening of the guide cylinder (3) is positioned above the gas distributor (2);
be provided with ejection of compact subassembly (4) in gas storage chamber (11) of reactor (1), ejection of compact subassembly (4) include: the device comprises a backflow shell (41), a discharge pipe (42) communicated with the top of the backflow shell (41), and a feeding pipe (43) communicated with the bottom of the backflow shell (41);
wherein the upper end of the discharge pipe (42) extends out of the reactor (1);
the bottom end of the feeding pipe (43) extends into the guide shell (3) and is positioned below the liquid level of the slurry catalyst.
2. The slurry bed reactor for direct synthesis gas to olefin as claimed in claim 1, wherein: the backflow shell (41) is in a spherical shell shape, a liquid leakage ring (411) which is horizontally arranged is fixed on the inner wall of the backflow shell (41), and a cooling bucket (412) is fixed on the inner ring of the liquid leakage ring (411).
3. The slurry bed reactor for direct synthesis gas to olefin as claimed in claim 2, wherein: a plurality of through holes are formed in the liquid leakage ring (411);
the opening of the cooling bucket (412) is arranged in a small-end-up manner, the upper end opening of the cooling bucket is communicated with the communication position of the discharge pipe (42) and the backflow shell (41), and the lower end opening of the cooling bucket is communicated with the communication position of the feeding pipe (43) and the backflow shell (41).
4. The slurry bed reactor for direct synthesis gas to olefin as claimed in claim 1, wherein: the opening of the upper section of the guide shell (3) is larger than the opening of the lower end, and a plurality of groups of air dispersing holes (31) are formed in the side wall of the upper section of the guide shell (3).
5. The slurry bed reactor for direct synthesis gas to olefin as claimed in claim 1, wherein: and a heat exchanger (14) is arranged on the inner wall of the liquid storage cavity (12) of the reactor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120416727.3U CN215288648U (en) | 2021-02-25 | 2021-02-25 | Slurry bed reaction device for directly preparing olefin from synthesis gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120416727.3U CN215288648U (en) | 2021-02-25 | 2021-02-25 | Slurry bed reaction device for directly preparing olefin from synthesis gas |
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| Publication Number | Publication Date |
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| CN215288648U true CN215288648U (en) | 2021-12-24 |
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| CN202120416727.3U Active CN215288648U (en) | 2021-02-25 | 2021-02-25 | Slurry bed reaction device for directly preparing olefin from synthesis gas |
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2021
- 2021-02-25 CN CN202120416727.3U patent/CN215288648U/en active Active
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