CN110665271A - Hydrogenation gas-liquid mixing filter equipment - Google Patents

Hydrogenation gas-liquid mixing filter equipment Download PDF

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Publication number
CN110665271A
CN110665271A CN201911093746.0A CN201911093746A CN110665271A CN 110665271 A CN110665271 A CN 110665271A CN 201911093746 A CN201911093746 A CN 201911093746A CN 110665271 A CN110665271 A CN 110665271A
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CN
China
Prior art keywords
filter
liquid phase
liquid
gas
hydrogenation
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.)
Pending
Application number
CN201911093746.0A
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Chinese (zh)
Inventor
张甫
易金华
邱福国
赵丽京
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUHAN JINZHONG PETROCHEMICAL ENGINEERING Co Ltd
Original Assignee
WUHAN JINZHONG PETROCHEMICAL ENGINEERING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUHAN JINZHONG PETROCHEMICAL ENGINEERING Co Ltd filed Critical WUHAN JINZHONG PETROCHEMICAL ENGINEERING Co Ltd
Priority to CN201911093746.0A priority Critical patent/CN110665271A/en
Publication of CN110665271A publication Critical patent/CN110665271A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/03Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G45/00Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
    • C10G45/02Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

The invention discloses a hydrogenation gas-liquid mixing and filtering device which comprises a cylinder, a gas phase inlet, a liquid phase inlet, an agent discharging port, a material outlet, a liquid phase distributor, a filter group, a metal wire mesh and a filter tower tray. The filter group comprises a plurality of filter monomers, the filter monomers are of a cylindrical structure which is communicated up and down, the metal wire mesh is arranged at the bottom of the filter group, the filter monomers are arranged on the filter tower tray, a gap between each filter monomer forms a filter central channel, and a baffle is arranged at an opening above the filter central channel. The inlet of the liquid phase distributor is connected with the liquid phase inlet, and the outlet is arranged right above the filter monomer so that the liquid flowing out from the outlet of the liquid phase distributor enters the filter monomer. The invention has good mixing and filtering effect and strong anti-blocking performance, avoids scales from entering the hydrogenation reactor, prolongs the operation period of a hydrogenation device, improves the activity of the hydrogenation catalyst and prolongs the service life of the hydrogenation catalyst.

Description

Hydrogenation gas-liquid mixing filter equipment
Technical Field
The invention belongs to the technical field of chemical production equipment, and particularly relates to a hydrogenation gas-liquid mixing and filtering device.
Background
In the fields of petrochemical industry and coal chemical industry, in the process of oil product hydrogenation production, due to the fact that raw oil deterioration gradually becomes severe, the content of easily-coked impurities such as diolefin is high, and rust scale and the like generated by corrosion of equipment and process pipelines enter a hydrogenation reactor, scale substances are generated and cover the surface of a catalyst, so that the catalyst is inactivated, the pressure drop of the reactor is gradually increased, and the normal production of the device is influenced when the scale substances are serious. Therefore, how to reduce the scale entering the hydrogenation reactor, reduce the covering catalyst surface, ensure the oil product and the hydrogen to be fully mixed, improve the catalyst activity, prolong the service life and prolong the operation period of the hydrogenation device becomes a technical problem to be solved in the field.
Disclosure of Invention
In view of the above disadvantages, the present invention aims to provide a hydrogenation gas-liquid mixing and filtering apparatus with good mixing and filtering effects, strong anti-blocking performance, and high catalyst utilization efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hydrogenation gas-liquid mixing and filtering device comprises a cylinder, a gas phase inlet, a liquid phase inlet, a discharging port and a material outlet, wherein the gas phase inlet and the liquid phase inlet are arranged above the cylinder, and the discharging port and the material outlet are arranged below the cylinder;
the method is characterized in that: the liquid phase distributor, the filter group, the metal wire mesh and the filter tower tray are arranged in the inner cavity of the cylinder body from top to bottom;
the filter group consists of a plurality of filter monomers which are longitudinally arranged at intervals, the filter monomers are of a cylindrical structure which is communicated up and down, and the side wall of each filter monomer is not provided with a hole;
the metal wire mesh is arranged at the bottom of the filter group;
a plurality of hollow mounting holes for mounting the filter single bodies are correspondingly formed in the filter tower tray, and the filter single bodies are arranged on the filter tower tray;
gaps among the filter single bodies form a filter central channel, and a baffle is arranged at an opening above the filter central channel;
and the inlet of the liquid phase distributor is connected with the liquid phase inlet, and the outlet of the liquid phase distributor is arranged right above the filter unit, so that liquid flowing out from the outlet of the liquid phase distributor enters the filter unit.
Furthermore, the filter tower tray is of a hollow structure, grids in the transverse direction and the longitudinal direction are uniformly arranged on the filter tower tray, and the filter units are arranged on the grids.
Furthermore, the filter units are uniformly arranged on the grid, and the area of the filter tray on which the filter units are arranged accounts for half of the total area of the filter tray.
Furthermore, the upper end of the side wall of the filter unit is provided with a support leg, the support leg is provided with a passage for liquid to pass through, and the baffle is arranged on the support leg.
Furthermore, the baffle is provided with a flow deflector, so that the liquid falling on the baffle flows into the filter unit through the flow deflector.
Furthermore, a strip-shaped distribution hole is formed in the joint of the material outlet and the barrel, and a filtering screen is arranged outside the strip-shaped distribution hole.
Furthermore, the liquid phase distributor is arranged on the inner wall of the cylinder body, a support piece is arranged on the inner wall of the cylinder body, and the liquid phase distributor is arranged on the support piece;
the liquid phase distributor comprises a main pipe and a plurality of branch pipes transversely arranged along the main pipe, wherein the side walls of the branch pipes are provided with holes, and the holes are positioned right above the openings at the upper ends of the filter single bodies;
the liquid phase inlet is connected with the main pipe of the liquid phase distributor through a detachable flange.
Furthermore, a gas phase distributor is arranged at the joint of the gas phase inlet and the barrel, and the clearance surface area of the outlet of the gas phase distributor is more than 1.5 times of the sectional area of the pipe orifice of the gas phase inlet.
Furthermore, the gas phase inlet is arranged at the top of the cylinder, and the liquid phase inlet is arranged on the side wall of the upper part of the cylinder; the material outlet is arranged at the bottom of the cylinder, and the agent discharging port is arranged on the side wall of the lower part of the cylinder at the bottom of the filter monomer.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the mixing-filtering effect is good, the anti-blocking performance is strong, the structural design is reasonable, and the space of the reactor is saved.
2. Can prevent the dirt from entering the hydrogenation reactor and prolong the operation period of the hydrogenation device.
3. The activity of the hydrogenation catalyst is improved, and the service life of the hydrogenation catalyst is prolonged.
4. The device is used for gas-liquid mixing and filtering, and has the advantages of simple process flow, high operation flexibility, safety and high reliability.
Drawings
FIG. 1 is a schematic view of the mixing and filtering apparatus of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a top view of a filter cell arrangement on a filter tray;
FIG. 4 is a schematic diagram of a filter tray configuration;
FIG. 5 is a schematic view of a liquid phase inlet and liquid phase distributor connection;
FIG. 6 is a schematic view of the manifold of FIG. 5;
FIG. 7 is an enlarged schematic view of portion B of FIG. 1;
in the figure: 1. a barrel; 2. a gas phase inlet; 3. a liquid phase inlet; 4. an agent discharging port; 5. a material outlet; 6. a liquid phase distributor; 7. a filter tray; 8. a filter unit; 9. a filter central passage; 10. a baffle plate; 11. a wire mesh; 12. a strip-shaped dispensing hole; 13. filtering the silk screen; 14. a support leg; 15. a support member; 16. a branch pipe; 17. a detachable flange; 18. a gas phase distributor; 19. a grid; 20. a flow deflector; 21 a main pipe; 22. a catalyst; 23. and (4) porcelain balls.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The utility model provides a hydrogenation gas-liquid mixture filter equipment, includes barrel 1, gaseous phase entry 2, liquid phase entry 3, unloads agent mouth 4 and material export 5, and gaseous phase entry 2 and liquid phase entry 3 set up in barrel 1 top, and it sets up in barrel 1 below to unload agent mouth 4 and material export 5.
The gas phase inlet 2 is arranged at the top of the cylinder 1, and the liquid phase inlet 3 is arranged on the side wall of the upper part of the cylinder 1; the material outlet 5 is arranged at the bottom of the cylinder 1, and the agent discharging port 4 is arranged on the side wall of the lower part of the cylinder 1.
The mixing and filtering device further comprises a liquid phase distributor 6, a filter group, a metal wire mesh 11 and a filter tower tray 7 which are arranged in the inner cavity of the cylinder body 1 from top to bottom.
The liquid phase distributor 6 is arranged at the upper part of the inner cavity of the cylinder body 1, and the liquid phase distributor 6 is communicated with the liquid phase inlet 3.
The filter group is composed of a plurality of filter monomers 8 which are longitudinally arranged at intervals, the filter monomers 8 are of a cylindrical structure which is communicated up and down, and the side wall of each filter monomer 8 is not provided with a hole.
The bottom of the filter unit 8 is provided with a ceramic ball 23, and the upper part of the ceramic ball 23 is provided with a catalyst 22. The wire mesh 11 is arranged at the bottom of the filter group.
Further, the agent discharge port 4 is provided at a position of the bottom of the filter unit 8 on the side wall of the lower portion of the cylinder 1.
In one embodiment, the filter unit 8 is provided with 3 layers of ceramic balls 23 at the bottom, the catalyst 22 is loaded on the upper part of the ceramic balls 23, the ceramic balls 23 have a particle size larger than the pore size of the filter screen 11 and larger than the particle size of the catalyst 22, and the ceramic balls 23 prevent the catalyst 22 from flowing out through the filter screen 11.
A plurality of hollow mounting holes for mounting the filter single bodies 8 are correspondingly arranged on the filter tower tray 7, and the filter single bodies 8 are arranged on the filter tower tray 7.
In one embodiment, the filter tray 7 is a hollow structure, and is uniformly provided with a grid 19 in the transverse and longitudinal directions, and the filter units 8 are arranged on the grid 19. The width of the grid 19 is less than or equal to 50 mm.
The method specifically comprises the following steps: the filter cells 8 are welded to the grid 19. The liquid achieves the sedimentation of the foulants and the adhesion of the gum in the filter unit 8, and thereafter flows out through the wire mesh 11.
Preferably, the filter cells 8 are uniformly arranged on the grid 19, and the area of the filter cells 8 arranged on the filter tray 7 accounts for half of the total area of the filter tray 7.
Gaps among the filter single bodies 8 form a filter central channel 9, and a baffle plate 10 is arranged at an opening above the filter central channel 9.
As an example, the mounting structure of the baffle 10 is: the upper end of the side wall of the filter unit 8 is provided with a support leg 14, and the baffle plate 10 is arranged on the support leg 14. The method specifically comprises the following steps: the baffle 10 is connected with the supporting legs 14 through screw threads.
Further, a channel for liquid to pass through is arranged on the supporting leg 14, and specifically, the supporting leg 14 is a hollow structure. When the space in the filter unit 8 is filled with dirt, the liquid flowing into the filter unit 8 can flow into the central channel 9 of the filter through the channels on the supporting legs 14 without pressure drop. Thus, when the space of the filter units 8 is filled with the dirt, the central filter passage 9 can be used as a material passage even if all the filter units 8 lose functions.
Furthermore, the baffle 10 is provided with a baffle 20 so that the liquid falling on the baffle 10 flows into the filter unit 8 through the baffle 20 and does not flow into the filter central passage 9. The angle between the guide vane 20 and the vertical direction is 45 degrees.
In this application, the inlet of the liquid phase distributor 6 is connected to the liquid phase inlet 3, and the outlet of the liquid phase distributor 6 is disposed directly above the filter unit 8, so that the liquid flowing out through the outlet of the liquid phase distributor 6 enters the filter unit 8.
In this application, material export 5 is equipped with bar distribution hole 12 with 1 junction of barrel, and bar distribution hole 12 is equipped with filtering screen 13 outward. The strip-shaped distribution holes 12 are uniformly distributed around.
In the application, the liquid phase distributor 6 is arranged on the inner wall of the cylinder 1, the inner wall of the cylinder 1 is provided with a support member 15, and the liquid phase distributor 6 is arranged on the support member 15;
the liquid phase distributor 6 comprises a main pipe 21 and a plurality of branch pipes 16 arranged transversely along the main pipe 21, wherein the side walls of the branch pipes 16 are provided with holes, and the holes are positioned right above the openings at the upper ends of the filter monomers 8; the open area is not less than 1.5 times of the branch pipe interfacial agent. The liquid phase inlet 3 is connected to the main pipe 21 of the liquid phase distributor 6 by a detachable flange 17.
In this application, gaseous phase entry 2 and barrel 1 junction are equipped with gaseous phase distributor 18, and gaseous phase distributor 18 export headroom surface area is greater than 1.5 times of gaseous phase entry 2 mouth of pipe sectional area.
When the filter works, liquid flows in from the liquid phase inlet 3, is dispersed and uniformly dropped into a plurality of filter monomers 8 which are arranged in parallel through the liquid phase distributor 6, the sedimentation of dirt and the adhesion of colloid are realized in the filter monomers 8, and then the liquid enters the central channel 9 of the filter through the wire mesh 11; gas flows in from the gas phase inlet 2, the gas does not contain dirt and has large flow rate, and the gas directly passes through the central channel 9 of the filter to be fully mixed with liquid. When the space in the filter unit 8 is filled with dirt, the filter central channel 9 can still be used as a material channel even if the filter group loses function, and pressure drop cannot be generated.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A hydrogenation gas-liquid mixing and filtering device comprises a cylinder body (1), a gas phase inlet (2), a liquid phase inlet (3), a discharging agent port (4) and a material outlet (5), wherein the gas phase inlet (2) and the liquid phase inlet (3) are arranged above the cylinder body (1), and the discharging agent port (4) and the material outlet (5) are arranged below the cylinder body (1);
the method is characterized in that: the filter also comprises a liquid phase distributor (6), a filter group, a metal wire mesh (11) and a filter tray (7) which are arranged in the inner cavity of the cylinder body (1) from top to bottom;
the filter group consists of a plurality of filter monomers (8) which are longitudinally arranged at intervals, the filter monomers (8) are of a cylindrical structure which is communicated up and down, and the side wall of each filter monomer (8) is not provided with a hole;
the wire mesh (11) is arranged at the bottom of the filter group;
a plurality of hollow mounting holes for mounting the filter single bodies (8) are correspondingly formed in the filter tower tray (7), and the filter single bodies (8) are arranged on the filter tower tray (7);
gaps among the filter single bodies (8) form a filter central channel (9), and a baffle (10) is arranged at an opening above the filter central channel (9);
the inlet of the liquid phase distributor (6) is connected with the liquid phase inlet (3), and the outlet of the liquid phase distributor (6) is arranged right above the filter monomer (8) so that liquid flowing out from the outlet of the liquid phase distributor (6) enters the filter monomer (8).
2. The hydrogenation gas-liquid mixing and filtering device according to claim 1, wherein: the filter tower tray (7) is of a hollow structure, grids (19) in the transverse direction and the longitudinal direction are uniformly arranged on the filter tower tray, and the filter units (8) are arranged on the grids (19).
3. The hydrogenation gas-liquid mixing and filtering device according to claim 2, characterized in that: the filter single bodies (8) are uniformly arranged on the grating (19), and the area of the filter single bodies (8) arranged on the filter tray (7) accounts for half of the total area of the filter tray (7).
4. The hydrogenation gas-liquid mixing and filtering device according to claim 1, wherein: the filter is characterized in that supporting legs (14) are arranged at the upper ends of the side walls of the filter units (8), channels for liquid to pass through are formed in the supporting legs (14), and the baffle plates (10) are arranged on the supporting legs (14).
5. The hydrogenation gas-liquid mixing and filtering device according to claim 1 or 4, characterized in that: the baffle (10) is provided with a flow deflector (20) so that liquid falling on the baffle (10) flows into the filter unit (8) through the flow deflector (20).
6. The hydrogenation gas-liquid mixing and filtering device according to claim 1, wherein: the material outlet (5) is provided with a strip-shaped distribution hole (12) at the joint with the barrel body (1), and a filtering screen (13) is arranged outside the strip-shaped distribution hole (12).
7. The hydrogenation gas-liquid mixing and filtering device according to claim 1, characterized in that: the liquid phase distributor (6) is arranged on the inner wall of the barrel (1), a support piece (15) is arranged on the inner wall of the barrel (1), and the liquid phase distributor (6) is arranged on the support piece (15);
the liquid phase distributor (6) comprises a main pipe (21) and a plurality of branch pipes (16) which are transversely arranged along the main pipe (21), wherein the side walls of the branch pipes (16) are provided with holes, and the holes are positioned right above the openings at the upper ends of the filter single bodies (8);
the liquid phase inlet (3) is connected with a main pipe (21) of the liquid phase distributor (6) through a detachable flange (17).
8. The hydrogenation gas-liquid mixing and filtering device according to claim 1, wherein: the joint of the gas phase inlet (2) and the barrel (1) is provided with a gas phase distributor (18), and the clearance surface area of the outlet of the gas phase distributor (18) is larger than 1.5 times of the sectional area of the pipe orifice of the gas phase inlet (2).
9. The hydrogenation gas-liquid mixing and filtering device according to claim 1, wherein: the gas phase inlet (2) is arranged at the top of the barrel (1), and the liquid phase inlet (3) is arranged on the side wall of the upper part of the barrel (1); the material outlet (5) is arranged at the bottom of the cylinder body (1), and the agent discharging port (4) is arranged on the side wall of the lower part of the cylinder body (1) at the position of the bottom of the filter single body (8).
CN201911093746.0A 2019-11-11 2019-11-11 Hydrogenation gas-liquid mixing filter equipment Pending CN110665271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911093746.0A CN110665271A (en) 2019-11-11 2019-11-11 Hydrogenation gas-liquid mixing filter equipment

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Application Number Priority Date Filing Date Title
CN201911093746.0A CN110665271A (en) 2019-11-11 2019-11-11 Hydrogenation gas-liquid mixing filter equipment

Publications (1)

Publication Number Publication Date
CN110665271A true CN110665271A (en) 2020-01-10

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CN201911093746.0A Pending CN110665271A (en) 2019-11-11 2019-11-11 Hydrogenation gas-liquid mixing filter equipment

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110092754A1 (en) * 2007-12-17 2011-04-21 Ifp Pre-distribution plate filtration with overflow tube for fixed bed reactor operating in gas and liquid co-current downflow mode
CN204051631U (en) * 2014-08-01 2014-12-31 中国石油化工股份有限公司 A kind of fluid distributor and fluid predistribution dish
CN204058374U (en) * 2014-08-01 2014-12-31 中国石油化工股份有限公司 Fluid prearranged assignment device and fluid prearranged assignment dish
CN205095483U (en) * 2015-10-23 2016-03-23 中国石油化工股份有限公司 Filter distributor and chemical reaction ware
FR3060413A1 (en) * 2016-12-15 2018-06-22 IFP Energies Nouvelles METHOD FOR HYDROTREATING HEAVY LOADS IN MULTITUBULAR RADIAL REACTOR
CN209333259U (en) * 2018-11-22 2019-09-03 东营市俊源石油技术开发有限公司 A kind of solvent gas-liquid separation surge tank
CN211025311U (en) * 2019-11-11 2020-07-17 武汉金中石化工程有限公司 Hydrogenation gas-liquid mixing filter equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110092754A1 (en) * 2007-12-17 2011-04-21 Ifp Pre-distribution plate filtration with overflow tube for fixed bed reactor operating in gas and liquid co-current downflow mode
CN204051631U (en) * 2014-08-01 2014-12-31 中国石油化工股份有限公司 A kind of fluid distributor and fluid predistribution dish
CN204058374U (en) * 2014-08-01 2014-12-31 中国石油化工股份有限公司 Fluid prearranged assignment device and fluid prearranged assignment dish
CN205095483U (en) * 2015-10-23 2016-03-23 中国石油化工股份有限公司 Filter distributor and chemical reaction ware
FR3060413A1 (en) * 2016-12-15 2018-06-22 IFP Energies Nouvelles METHOD FOR HYDROTREATING HEAVY LOADS IN MULTITUBULAR RADIAL REACTOR
CN209333259U (en) * 2018-11-22 2019-09-03 东营市俊源石油技术开发有限公司 A kind of solvent gas-liquid separation surge tank
CN211025311U (en) * 2019-11-11 2020-07-17 武汉金中石化工程有限公司 Hydrogenation gas-liquid mixing filter equipment

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