CN211026227U - Convection type micro-nano multiphase flow process strengthening reaction device - Google Patents
Convection type micro-nano multiphase flow process strengthening reaction device Download PDFInfo
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- CN211026227U CN211026227U CN201921445808.5U CN201921445808U CN211026227U CN 211026227 U CN211026227 U CN 211026227U CN 201921445808 U CN201921445808 U CN 201921445808U CN 211026227 U CN211026227 U CN 211026227U
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Abstract
A convection type micro-nano multiphase flow process strengthening reaction device comprises a reaction tube, wherein an upper end enclosure is arranged above the reaction tube, and a lower end enclosure is arranged at the lower part of the reaction tube; the top end of the upper end socket is provided with a gas discharge hole and a gas-liquid-solid three-phase feed hole, an outlet of the gas-liquid-solid three-phase feed hole is provided with a distribution disc positioned in a reaction cavity of the reaction tube, the lower end socket is of a conical structure, a liquid-solid two-phase discharge hole is formed in the bottom of the lower end socket, a gas distribution conical plate with micro-nano through holes is arranged in the conical structure of the lower end socket, and a gas feed hole communicated with a cavity formed between the lower end socket and the gas distribution conical plate is formed in the upper. The utility model discloses can be fast with the solid eduction gear that generates in the reactor, effectively reduce solid deposition's probability in the reactor, reduce device operation harshness by a wide margin, have that the conversion rate is high, hydrogen consumes lowly, oil yield is high, economic benefits is good, do benefit to advantages such as device long period, scale operation.
Description
Technical Field
The utility model relates to a petrochemical and coal chemical industry field, in particular to reaction unit is reinforceed to multiphase flow process is received a little to convection type.
Background
The conventional coal liquefaction and heavy oil hydrogenation and lightening process has the characteristics of high reaction temperature, long retention time, high raw material carbon residue value, high hydrogen consumption and the like, and is very easy to generate the phenomena of coking, wall hanging, solid deposition, pressure difference increase and the like in the reaction and conversion process, thereby being the main reason for difficult large-area popularization and application of the process technology.
At present, the related technologies at home and abroad mostly adopt the modes of forced internal circulation, arrangement of a circulating cylinder and the like, the transfer rate among gas, liquid and solid in a system is enhanced, the hydrogenation efficiency of the system is improved, and the raw coke and solid phase deposition probability of reaction is reduced, but the mode of arranging an internal component can increase the dead zone and the weak zone of fluid in the reaction system, cause coke hanging in a reactor, abrasion of the internal component and reduction of heat transfer efficiency; although the conventional plug flow type reactor has no internal member and less flow dead zone, the mass transfer efficiency of gas-liquid two phases is poor, the utilization rate of hydrogen is low, and the coking and solid phase deposition of the system can be caused.
In addition, the heavy oil lightening reactor at the present stage is designed by adopting a feeding mode that raw materials are mixed with hydrogen and then enter and exit, and in the heavy inferior oil hydroconversion and kerosene co-refining reaction processes, solid deposits are easily generated at the bottom of the reactor, so that the long-period stable operation of the device is influenced, and the abrasion degree of a bottom high-pressure-difference pressure reducing valve is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can be fast with the solid discharge that generates in the reactor, effectively reduce solid deposition's in the reactor probability, reduce device operation harshness by a wide margin, have that the conversion rate is high, hydrogen consumes lowly, oil yield is high, economic benefits is good, does benefit to device long period, scale moving to the STREAMING and receives heterogeneous process strengthening reaction unit a little.
In order to realize the purpose, the utility model discloses a technical scheme is: comprises a reaction tube, the upper part of which is provided with an upper seal head and the lower part of which is provided with a lower seal head; the top end of the upper end socket is provided with a gas discharge hole and a gas-liquid-solid three-phase feed hole, an outlet of the gas-liquid-solid three-phase feed hole is provided with a distribution disc positioned in a reaction cavity of the reaction tube, the lower end socket is of a conical structure, a liquid-solid two-phase discharge hole is formed in the bottom of the lower end socket, a gas distribution conical plate with micro-nano through holes is arranged in the conical structure of the lower end socket, and a gas feed hole communicated with a cavity formed between the lower end socket and the gas distribution conical plate is formed in the upper.
The upper end enclosure is of an oval, hemispherical or conical structure.
The cone angle α of the lower end socket is 35- α -135 degrees.
The gas discharge port is positioned at the topmost end of the upper end enclosure, and the liquid-solid two-phase discharge port is positioned at the lowest end of the lower end enclosure cone.
The distribution plate is of a downward conical structure, the cone angle β is usually more than or equal to 15 degrees and less than or equal to β degrees and less than or equal to 165 degrees, and the bottom of the distribution plate is provided with a channel communicated with the reactor.
The upper part of the gas distribution conical plate is connected with the inner wall of the bottom of the reaction tube, and the lower part of the gas distribution conical plate is connected with the inner wall of the bottom of the lower seal head.
The angle gamma between the gas feed inlet and the liquid-solid two-phase discharge outlet is more than or equal to 10 degrees and less than or equal to 75 degrees.
The utility model has the advantages that:
(1) the utility model adopts the mode that liquid and solid materials enter from the upper part of the reactor, flow downwards and form strong convection with micro-nano dispersed gas flowing upwards from the lower feeding, thereby greatly strengthening the mass and heat transfer capacity in the reactor, providing good hydrogen supply performance for the forced hydrocracking reaction area of the inlet, reducing the hydrogen consumption of the reaction, and increasing the conversion rate and the economical efficiency of raw materials;
(2) the utility model adopts the mode that the liquid-solid fluid is discharged from the bottom outlet of the reactor, can effectively avoid the deposition of semicoke, ash content, catalyst and other solids generated by reaction, is beneficial to improving the operation elasticity of the device, reduces the operation rigor of the device and realizes the long-period stable operation of the device;
(3) the utility model discloses a gas, liquid, solid three-phase feeding mix the back dispersion injection mode get into inside the reactor, can effectively reduce the bubble entrainment volume on jet upper portion, avoid reactor export gas-liquid to smuggle the emergence of phenomenon secretly.
(4) The utility model discloses a mode that gas distribution taper plate and bottom head, gaseous feeding combine has increased gaseous distribution in the reactor for the bottom head does not have the internals, has reduced fluid flow's blind spot, weak area.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses a top is provided with upper cover 40, the lower part is provided with reaction tube 20 of low head 30 wherein, upper cover 40 is oval, hemisphere or toper structure, upper cover 40 top is provided with gas discharge port 70 and gas-liquid-solid three-phase feed inlet 00, the export of gas-liquid-solid three-phase feed inlet 00 is provided with distribution plate 90 that is located the reaction intracavity of reaction tube 20, distribution plate 90 is the downward toper structure of direction, cone angle β is 15 degrees and is no less than β and no less than 165, the passageway of intercommunication reactor 10 is seted up to distribution plate 90 bottom, so that gas-liquid-solid three-phase feeding gets into inside reactor 10 with the dispersion injection mode, low head 30 is the toper structure, and cone angle α is 35 degrees and is no less than α and no less than 135 degrees, be provided with liquid-solid double-phase discharge gate 50 in the bottommost of low head 30, be provided with the gas distribution taper plate 80 that has micro-nano through-hole in the toper structure of low head 30, the upper portion of gas distribution taper plate 80 is connected with reaction tube 20 bottom inner wall, the lower part links to the inner wall links to each other with the lower cover 30 lateral wall bottom is seted up with the gas distribution taper plate 30
Is composed of
The utility model discloses an upper cover 40 contains gas discharge mouth 70, solid three-phase feed inlet 00 of gas-liquid and distribution dish 90, lower cover 30 contains gas feed inlet 60, solid double-phase discharge gate 50 of liquid and gas distribution taper plate 80 to gas of gas feed inlet 60 forms micro-nano level's bubble and forms the convection current with the liquid that flows down, solid mixture after passing through gas distribution taper plate 80 in reactor 10, last gas flows out from gas discharge mouth 70, the solid of liquid flows out from solid double-phase discharge gate 50 of liquid.
The utility model discloses a mode of liquid-solid double-phase and micro-nano dispersion form gas phase convection strengthens mass transfer heat transfer ability and hydrogenation ability in the reactor, can be fast with the solid eduction gear who generates in the reactor, effectively reduces solid deposition's probability in the reactor, reduces device operation harshness by a wide margin, has that the conversion rate is high, hydrogen consumes lowly, oil yield is high, economic benefits is good, does benefit to advantages such as device long period, scale operation.
Claims (7)
1. A convection type micro-nano multiphase flow process strengthening reaction device is characterized in that: comprises a reaction tube (20) with an upper end enclosure (40) arranged above and a lower end enclosure (30) arranged below; be provided with gas discharge mouth (70) and gas-liquid-solid three-phase feed inlet (00) on upper cover (40) top, the export of gas-liquid-solid three-phase feed inlet (00) is provided with plate of distributor (90) that are located the reaction intracavity of reaction tube (20), lower cover (30) be the toper structure and be provided with liquid two-phase discharge gate (50) solid in its bottom, be provided with gas distribution taper plate (80) that have micro-nano through-hole in lower cover (30) toper structure, gas feed inlet (60) that the cavity that forms between lower cover (30) and gas distribution taper plate (80) is linked together are seted up to lower cover (30) lateral wall bottom.
2. The reinforced reaction device for the convective micro-nano multiphase flow process according to claim 1, characterized in that: the upper end enclosure (40) is of an oval, hemispherical or conical structure.
3. The convection type micro-nano multiphase flow process strengthening reaction device as recited in claim 1, wherein the cone angle α of the lower head (30) is 35 ° or more and α ° or more and 135 ° or less.
4. The reinforced reaction device for the convective micro-nano multiphase flow process according to claim 1, characterized in that: the gas discharge port (70) is positioned at the topmost end of the upper sealing head (40), and the liquid-solid two-phase discharge port (50) is positioned at the bottommost end of the cone body of the lower sealing head (30).
5. The convection type micro-nano multiphase flow process strengthening reaction device as recited in claim 1, wherein the distribution disc (90) is a downward conical structure, the cone angle β is not less than 15 degrees and not more than β and not more than 165 degrees, and the bottom of the distribution disc (90) is provided with a channel communicated with the reactor (10).
6. The reinforced reaction device for the convective micro-nano multiphase flow process according to claim 1, characterized in that: the upper part of the gas distribution conical plate (80) is connected with the inner wall of the bottom of the reaction tube (20), and the lower part of the gas distribution conical plate is connected with the inner wall of the bottom of the lower seal head (30).
7. The reinforced reaction device for the convective micro-nano multiphase flow process according to claim 1, characterized in that: the angle between the gas feed inlet (60) and the liquid-solid two-phase discharge outlet (50)
Is composed of
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921445808.5U CN211026227U (en) | 2019-09-02 | 2019-09-02 | Convection type micro-nano multiphase flow process strengthening reaction device |
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| CN201921445808.5U CN211026227U (en) | 2019-09-02 | 2019-09-02 | Convection type micro-nano multiphase flow process strengthening reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420605A (en) * | 2019-09-02 | 2019-11-08 | 南京中汇能源科技研发中心 | A kind of convection micro-nano multiphase flow process intensification reaction unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420605A (en) * | 2019-09-02 | 2019-11-08 | 南京中汇能源科技研发中心 | A kind of convection micro-nano multiphase flow process intensification reaction unit |
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