CN117643836B - Hydrogenation catalyst regeneration device and regeneration method - Google Patents
Hydrogenation catalyst regeneration device and regeneration method Download PDFInfo
- Publication number
- CN117643836B CN117643836B CN202410108120.7A CN202410108120A CN117643836B CN 117643836 B CN117643836 B CN 117643836B CN 202410108120 A CN202410108120 A CN 202410108120A CN 117643836 B CN117643836 B CN 117643836B
- Authority
- CN
- China
- Prior art keywords
- regeneration
- gas
- catalyst
- fixedly connected
- hydrogen
- 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.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 131
- 238000011069 regeneration method Methods 0.000 title claims abstract description 131
- 230000008929 regeneration Effects 0.000 title claims abstract description 116
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 85
- 238000007599 discharging Methods 0.000 claims abstract description 69
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000001257 hydrogen Substances 0.000 claims abstract description 54
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 47
- 239000002912 waste gas Substances 0.000 claims abstract description 12
- 230000001737 promoting effect Effects 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 17
- 238000007664 blowing Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000008531 maintenance mechanism Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 24
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/10—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst using elemental hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/001—Controlling catalytic processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a hydrogenation catalyst regeneration device, which comprises a base, wherein the top of the base is fixedly connected with a regeneration furnace body for carrying out hydrogenation regeneration on an inactivated catalyst, the inside of the regeneration furnace body is fixedly provided with a discharging mechanism for uniformly spreading the inactivated catalyst, the inside of the regeneration furnace body is fixedly connected with a gas conveying mechanism for supplying hydrogen to the inside of a lifting frame, the top of the base is fixedly connected with a gas collecting mechanism, and the inside of the base is fixedly connected with an atmosphere maintaining mechanism for maintaining the concentration of hydrogen atmosphere and promoting the discharge of waste gas; the hydrogen is discharged into the deactivated catalyst, so that the regeneration efficiency of the deactivated catalyst is improved, and the deactivated catalyst can generate more water vapor and hydrogen sulfide on the surface of the deactivated catalyst in the regeneration reaction, so that the water vapor and the hydrogen sulfide generated in the regeneration reaction can be rapidly removed, and the concentration of the hydrogen atmosphere in the regeneration furnace body is maintained.
Description
Technical Field
The invention relates to the technical field of catalyst regeneration, in particular to a hydrogenation catalyst regeneration device and a hydrogenation catalyst regeneration method.
Background
The catalyst is the core of the hydrogenation process, and the catalyst regeneration is an important application technology and is a matched technology of the modern hydrogenation process. The regeneration and the repeated use of the deactivated hydrogenation catalyst are one of important measures for enterprises to save energy resources and reduce production cost. The hydrogenation catalyst is reduced or deactivated during operation under load, mainly due to carbon deposition and plugging of micropores. Activity recovery work based on "burn regeneration" is required every 3-4 years.
Hydrogenation catalysts are catalysts commonly used in oil refining and chemical industry for hydrogenation reactions such as hydrocracking, desulfurization, denitrification, and the like. Since the catalyst is gradually deactivated during use, regeneration is required to restore the catalytic activity, three methods for regenerating the hydrogenation catalyst are currently used, namely an atmosphere regeneration method, an oxygen regeneration method and a washing regeneration method, wherein the atmosphere regeneration method is to put the catalyst into a regeneration furnace and then regenerate the catalyst by introducing hydrogen and raising the temperature. The hydrogen can reduce the deactivated matters on the surface of the catalyst to restore the catalytic activity.
However, when the catalyst is regenerated and reused by the atmosphere regeneration method, firstly, if the supply of hydrogen is insufficient, the deactivated substances on the surface of the catalyst may not be completely reduced to affect the regeneration effect, secondly, during the regeneration, the mixture between the hydrogen and the catalyst may not be uniform, so that part of the surface of the catalyst cannot be effectively reduced, thirdly, more water vapor is usually generated in the hydrogenation regeneration reaction and hydrogen sulfide is generated in the reduction process, the water vapor and the hydrogen sulfide are both generated on the surface of the catalyst, the hydrogen sulfide is dissolved in the water vapor, the formed substances have an influence on the performance of the catalyst, and the current atmosphere regeneration method only removes the substances after the catalyst regeneration is finished, so that the regeneration effect of the catalyst is poor. For this purpose, a hydrogenation catalyst regeneration device and a regeneration method are proposed.
Disclosure of Invention
The invention aims to provide a hydrogenation catalyst regeneration device and a regeneration method, which are used for solving the problem that steam, hydrogen sulfide and the like generated in the regeneration reaction in the background technology cannot be removed in time.
In order to achieve the above purpose, the present invention provides the following technical solutions: the hydrogenation catalyst regeneration device comprises a base, wherein the top of the base is fixedly connected with a regeneration furnace body for carrying out hydrogenation regeneration on an inactivated catalyst;
the device comprises a regeneration furnace body, and is characterized in that a discharging mechanism for uniformly tiling an inactivated catalyst is fixedly arranged in the regeneration furnace body, the discharging mechanism comprises a rotary discharging disc which is circumferentially distributed in the regeneration furnace body from top to bottom, a baffle plate for blocking the inactivated catalyst is fixedly connected to the outer side of the rotary discharging disc, a placing groove is formed in the inner side of the baffle plate, a temperature control assembly for controlling the temperature in the regeneration reaction of the inactivated catalyst is fixedly arranged in the placing groove, a plurality of groups of lifting grooves are formed in the rotary discharging disc, lifting frames are fixedly connected to the bottoms of the lifting grooves through electric push rods, a plurality of guide pipes are fixedly connected to the outer side of the lifting frames, and gas conveying pipes for maintaining the hydrogen concentration in the inactivated catalyst and discharging waste gas are slidably connected to the guide pipes through elastic assemblies;
the inside of the regeneration furnace body is fixedly connected with a gas transmission mechanism for supplying hydrogen to the inside of the lifting frame;
the top of the base is fixedly connected with a gas collection mechanism for continuously recycling waste gas generated in the regeneration reaction of the deactivated catalyst;
the inside of the base is fixedly connected with an atmosphere maintaining mechanism for maintaining the hydrogen atmosphere concentration and promoting the exhaust gas to be discharged.
Preferably: the top fixed mounting of base has the transport feeding mechanism that is used for carrying out the material and get the material to rotatory blowing dish, carry feeding mechanism including fixed mounting at the bracing piece at base top, the top fixed mounting of bracing piece has the blowing hopper, just the blowing hopper with rotatory blowing dish links up the setting, rotatory blowing dish's below links up and is provided with the discharge hopper that is used for the discharge.
Preferably: the gas collection mechanism comprises a gas collection bottle, a gas collection pump is arranged outside the gas collection bottle, an air outlet of the gas collection pump is communicated with the gas collection bottle through a pipeline, and an air inlet of the gas collection pump extends to the inside of the regeneration furnace body through a one-way pipe.
Preferably: the gas transmission mechanism comprises a connecting frame fixedly connected to the top of the base, the top of the connecting frame is fixedly connected with a gas supply column, the inside of the connecting frame is communicated with the inside of the gas supply column, and the inner side of the gas supply column is provided with a communication hole.
Preferably: the lifting frame is characterized in that air inlet pipes are fixedly connected to two sides of the lifting frame, the two air inlet pipes are arranged in a staggered mode, and the air inlet pipes penetrate through the baffle and then are communicated with the communication holes.
Preferably: the temperature control assembly comprises a temperature control sheet, a controller and a temperature sensor, wherein the temperature sensor is in signal connection with the controller, the controller is in signal connection with the temperature control sheet, and the controller is in signal connection with external equipment.
Preferably: the inside of pipe has offered the spacing groove, the outside fixedly connected with stopper of gas-supply pipe, the gas-supply pipe passes through the inside of elastic component slip spacing setting at the pipe.
Preferably: the atmosphere maintaining mechanism comprises an atmosphere maintaining pipe fixedly connected to the top of the base, a plurality of groups of through holes are uniformly formed in the atmosphere maintaining pipe, and the atmosphere maintaining pipe and the connecting frame are communicated with external hydrogen supply equipment.
The hydrogenation catalyst regeneration method uses the hydrogenation catalytic regeneration device, and specifically comprises the following steps:
step one: firstly, putting an inactivated catalyst into a rotary discharging disc;
step two: then, an electric push rod is started, the electric push rod pushes the lifting frames to lift out of the lifting grooves of the rotary discharging disc, the top ends of the lifting frames are lower than the height of the baffle plates, object placing grooves are formed between two adjacent lifting frames and the rotary discharging disc, and after the front object placing grooves are filled, the deactivated catalyst enters the rear object placing grooves and moves downwards in sequence until all the object placing grooves of the rotary discharging disc are filled with the deactivated catalyst;
step three: starting an external hydrogen supply device to supply hydrogen to the gas transmission mechanism and the atmosphere maintenance mechanism, and adjusting the temperature inside the regeneration furnace body through the temperature control assembly at the same time, so that the deactivated catalyst can be subjected to a regeneration reaction, and during the regeneration reaction, the waste gas inside the regeneration furnace body is extracted and collected through the gas collection mechanism;
step four: after the regeneration reaction is finished, the electric push rod is controlled to drive the lifting frame to move downwards to the inside of the lifting groove, and the regenerated catalyst is discharged through the bottom end of the rotary discharging disc under the action of self gravity.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the electric push rod is controlled to push the lifting frame to lift out of the lifting groove of the rotary discharging disc, the deactivated catalyst can fill the storage groove formed by all the lifting frames on the rotary discharging disc, the thickness of the deactivated catalyst filled in the storage groove formed by the lifting frames can be adjusted by controlling the height of the lifting frame, and the time of the regeneration reaction can be controlled by controlling the thickness of the deactivated catalyst.
2. According to the invention, the temperature sensor timely detects the reaction temperature at the corresponding position and timely adjusts the reaction temperature, so that the temperature can be timely and accurately adjusted according to the regeneration reaction temperature of the deactivated catalyst in different areas, and the condition that the temperature cannot be adjusted pertinently due to different rates of the regeneration reaction of the deactivated catalyst in different areas can be avoided.
3. In the invention, the hydrogen entering the lifting frame can enter the guide pipe, and the gas pipe is arranged in the guide pipe, so that the hydrogen entering the guide pipe can squeeze the gas pipe to move outwards until the vent hole on the gas pipe moves out of the guide pipe, the gas pipe after the outward movement can enter the deactivated catalyst, and the hydrogen can be discharged from the vent hole in the gas pipe after the outward movement, thereby improving the regeneration efficiency of the deactivated catalyst, and because the deactivated catalyst can generate more steam and hydrogen sulfide in the regeneration reaction, the steam and the hydrogen sulfide exist on the surface of the deactivated catalyst, the steam and the hydrogen sulfide generated in the regeneration reaction can be rapidly discharged through the hydrogen discharged into the deactivated catalyst, and the concentration of the hydrogen atmosphere in the regeneration furnace body can be maintained.
Drawings
FIG. 1 is an overall structural view of the present invention;
FIG. 2 is a schematic diagram of a connection structure of a gas collection mechanism and a discharging mechanism in the invention;
FIG. 3 is a schematic cross-sectional view of a gas collection mechanism according to the present invention;
FIG. 4 is a schematic view of a connection mechanism of an atmosphere maintaining mechanism and a discharging mechanism in the present invention;
FIG. 5 is a schematic diagram of a connection structure of a discharging mechanism and a gas transmission mechanism in the invention;
FIG. 6 is a schematic diagram showing the connection of the internal structure of the rotary tray according to the present invention;
FIG. 7 is a schematic view showing the internal structure of the lifting frame according to the present invention;
FIG. 8 is a cross-sectional view showing the internal structure of the rotary tray according to the present invention;
in the figure:
1. a base;
2. regenerating a furnace body;
3. a conveying and reclaiming mechanism; 31. a support rod; 32. discharging hoppers; 33. discharging a hopper;
4. a gas collection mechanism; 41. a gas collecting bottle; 42. a unidirectional tube;
5. a gas delivery mechanism; 51. a connection frame; 52. a gas feeding column; 53. a communication hole;
6. a discharging mechanism; 61. rotating a discharging disc; 62. a baffle; 63. an air inlet pipe; 64. a temperature control assembly; 65. lifting the frame; 66. a conduit; 67. an elastic component; 68. a gas pipe;
7. an atmosphere maintaining mechanism; 71. an atmosphere maintaining tube; 72. and a through hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 8, the present invention provides a hydrogenation catalyst regeneration device and a regeneration method, which comprises the following steps:
a hydrogenation catalyst regeneration device comprises a base 1, wherein the top of the base 1 is fixedly connected with a regeneration furnace body 2 for carrying out hydrogenation regeneration on an inactivated catalyst.
The inside fixed mounting of regeneration furnace body 2 has the feed mechanism 6 that is used for carrying out even tiling to the deactivated catalyst, feed mechanism 6 includes top-down around distributing in the inside rotatory blowing dish 61 of regeneration furnace body 2, the outside fixedly connected with of rotatory blowing dish 61 is used for carrying out the baffle 62 of separation to the deactivated catalyst, the standing groove has been seted up to the inboard of baffle 62, the inside fixed mounting of standing groove has the accuse temperature subassembly 64 that is arranged in controlling the temperature in the deactivated catalyst regeneration reaction, the multiunit lifting groove has been seted up to the inside of rotatory blowing dish 61, multiunit lifting groove's bottom all is through electric push rod fixedly connected with lifting frame 65, the outside fixedly connected with pipe 66 of lifting frame 65, pipe 66 is through elastic component 67 sliding connection has the gas-supply pipe 68 that is used for maintaining the inside hydrogen concentration of deactivated catalyst and discharges waste gas.
The inside of the regeneration furnace body 2 is fixedly connected with a gas transmission mechanism 5 for supplying hydrogen to the inside of the lifting frame 65.
The top of the base 1 is fixedly connected with a gas collecting mechanism 4 for continuously recovering the waste gas generated in the regeneration reaction of the deactivated catalyst.
An atmosphere maintaining mechanism 7 for maintaining the hydrogen atmosphere concentration and promoting the exhaust gas discharge is fixedly connected to the inside of the base 1.
As an embodiment of the present invention, as shown in fig. 1 and 2, a conveying and taking mechanism 3 for feeding and taking materials to and from a rotary discharging tray 61 is fixedly installed at the top of the base 1, the conveying and taking mechanism 3 includes a supporting rod 31 fixedly installed at the top of the base 1, a discharging hopper 32 is fixedly installed at the top of the supporting rod 31, the discharging hopper 32 is connected with the rotary discharging tray 61, and a discharging hopper 33 for discharging materials is connected under the rotary discharging tray 61.
During operation, the deactivated catalyst is first placed into the discharging hopper 32, then the valve on the discharging hopper 32 is opened, the deactivated catalyst enters the rotary discharging tray 61 under the action of gravity, and the deactivated catalyst cannot fall off from the rotary discharging tray 61 due to the baffle plate 62 arranged on the outer side of the rotary discharging tray 61.
As an embodiment of the present invention, as shown in fig. 1 and 2, the gas collecting mechanism 4 includes a gas collecting bottle 41, a gas collecting pump is provided outside the gas collecting bottle 41, an air outlet of the gas collecting pump is communicated with the gas collecting bottle 41 through a pipe, and an air inlet of the gas collecting pump extends to the inside of the regeneration furnace body 2 through a unidirectional pipe 42.
In operation, the exhaust gas such as hydrogen sulfide in the gas collecting bottle 41 is sucked away by the gas collecting pump and the one-way pipe 42, thereby maintaining the concentration of the hydrogen atmosphere in the regeneration furnace body 2.
As shown in fig. 1 and 5, as an embodiment of the present invention, the air delivery mechanism 5 includes a connection frame 51 fixedly connected to the top of the base 1, an air supply column 52 is fixedly connected to the top of the connection frame 51, the interior of the connection frame 51 is disposed in communication with the interior of the air supply column 52, a communication hole 53 is disposed in the interior of the air supply column 52, air inlet pipes 63 are fixedly connected to both sides of the lifting frame 65, and the two air inlet pipes 63 are disposed in a staggered manner, and the air inlet pipes 63 are communicated with the communication hole 53 after penetrating through the baffle 62.
When the device works, hydrogen entering the connecting frame 51 enters the lifting frame 65 through the gas feeding column 52, the communication hole 53 and the gas inlet pipes 63, and because the two gas inlet pipes 63 are distributed in a staggered way, when the hydrogen is led in by the gas inlet pipes 63 at the two sides, the two hydrogen flows cannot collide with each other, so that the situation that the content of the hydrogen at the collision part is small due to the collision between the two hydrogen flows is avoided, and the hydrogen at the collision position is too small to cause the hydrogen at the position to be mixed with the deactivated catalyst unevenly, thereby reducing the regeneration efficiency of the deactivated catalyst;
the hydrogen entering the inside of the lifting frame 65 enters the inside of the guide pipe 66, and because the gas pipe 68 is arranged in the guide pipe 66, the hydrogen entering the inside of the guide pipe 66 can squeeze the gas pipe 68 to move outwards until the vent holes on the gas pipe 68 move out of the inside of the guide pipe 66, the gas pipe 68 after the outward movement can enter the inside of the deactivated catalyst, and the hydrogen can be discharged from the vent holes in the gas pipe 68 after the outward movement, and because the gas pipe 68 after the outward movement enters the inside of the deactivated catalyst, the hydrogen can be uniformly mixed with the deactivated catalyst, so that the regeneration efficiency of the deactivated catalyst is improved.
As an embodiment of the present invention, as shown in fig. 6 and 8, the temperature control assembly 64 includes a temperature control sheet, a controller, and a temperature sensor in signal connection with the controller, the controller in signal connection with the temperature control sheet, and the controller in signal connection with an external device.
When the device works, the valve on the discharging hopper 32 is closed, so that the deactivated catalyst does not enter any more, then the external hydrogen supply device is started to supply hydrogen to the connecting frame 51 and the atmosphere maintaining tube 71, meanwhile, signals are transmitted to the controller through the external device, the controller controls the temperature inside the temperature control sheet regeneration furnace body 2 to be adjusted, and in the regeneration reaction process, the temperature sensor timely detects the reaction temperature at the corresponding position and timely adjusts the reaction temperature, so that the temperature cannot be adjusted in a targeted manner due to the different rates of the regeneration reaction of the deactivated catalyst in different areas according to the regeneration reaction temperature of the deactivated catalyst in different areas.
As shown in fig. 7, a limiting groove is formed in the conduit 66, a limiting block is fixedly connected to the outer side of the air pipe 68, the air pipe 68 is slidably and limitedly disposed in the conduit 66 through an elastic component 67, and the elastic component 67 may be a workpiece with compression and rebound functions, such as a spring or a spring rod.
During operation, the electric push rod can push the lifting frame 65 to lift out of the lifting groove of the rotary discharging disc 61, and the height of the lifting frame 65 is lower than that of the baffle plate 62, so that an inactivated catalyst can cross the lifting frame 65 to enter the storage groove formed by the next group of lifting frames 65 and the rotary discharging disc 61 after filling the storage groove formed by the current two adjacent lifting frames 65 and the rotary discharging disc 61, and sequentially move downwards until all the storage grooves formed by the lifting frames 65 on the rotary discharging disc 61 are filled with the inactivated catalyst, the thickness of the inactivated catalyst filled in the storage groove formed by the two adjacent lifting frames 65 can be adjusted by controlling the height of the lifting frame 65, and the time of a regeneration reaction can be controlled by controlling the thickness of the inactivated catalyst.
As an embodiment of the present invention, as shown in fig. 4, the atmosphere maintaining mechanism 7 includes an atmosphere maintaining pipe 71 fixedly connected to the top of the base 1, a plurality of groups of through holes 72 are uniformly formed in the atmosphere maintaining pipe 71, and the atmosphere maintaining pipe 71 and the connecting frame 51 are both communicated with an external hydrogen supply device.
During operation, because the deactivated catalyst generates more water vapor and hydrogen sulfide during the regeneration reaction, and the water vapor and the hydrogen sulfide exist on the surface of the deactivated catalyst, the water vapor and the hydrogen sulfide generated during the regeneration reaction can be rapidly discharged through the hydrogen gas into the deactivated catalyst, and because the temperature during the regeneration reaction is relatively high and the air density of the hydrogen sulfide is greater than that of the hydrogen gas, the hydrogen sulfide slowly rises in the regeneration furnace body 2 or is deposited at the bottom of the regeneration furnace body 2, so that the hydrogen gas atmosphere in the regeneration furnace body 2 is insufficient, the hydrogen gas atmosphere is introduced into the regeneration furnace body 2 from bottom to top through the atmosphere maintaining pipe 71 and the through hole 72, and waste gases such as the hydrogen sulfide in the regeneration furnace body 2 can be discharged through the hydrogen gas;
after the regeneration reaction is finished, a valve on the discharge hopper 33 is opened, and the electric push rod is controlled to drive the lifting frame 65 to move downwards to the inside of the lifting groove, so that the regenerated catalyst is discharged through the discharge hopper 33 under the action of self gravity.
As an embodiment of the present invention, a catalytic regeneration method of a hydrogenation catalyst regeneration apparatus specifically includes the steps of:
step one: firstly, putting an inactivated catalyst into the discharging hopper 32, then opening a valve on the discharging hopper 32, and allowing the inactivated catalyst to enter the rotary discharging tray 61 under the action of self gravity;
step two: then, by controlling the electric push rod, the electric push rod can push the lifting frame 65 to lift out of the lifting groove of the rotary discharging disc 61, and the height of the lifting frame 65 is lower than that of the baffle plate 62, so that the deactivated catalyst fills up the storage groove formed by the two lifting frames 65 and the rotary discharging disc 61, then the deactivated catalyst passes through the lifting frame 65 and enters the storage groove formed by the next group of two lifting frames 65 and the rotary discharging disc 61, and moves downwards in sequence until all the storage grooves formed by the two lifting frames 65 on the rotary discharging disc 61 are filled with the deactivated catalyst;
step three: closing a valve on the discharging hopper 32 to prevent the inactive catalyst from entering, then starting an external hydrogen supply device to supply hydrogen to the connecting frame 51 and the atmosphere maintaining pipe 71, and adjusting the temperature inside the regeneration furnace body 2 through the temperature control assembly 64 to perform a regeneration reaction on the inactive catalyst, wherein the exhaust gas inside the regeneration furnace body 2 is pumped out and collected through the gas collecting mechanism 4 during the regeneration reaction;
step four: after the regeneration reaction is finished, a valve on the discharge hopper 33 is opened, and the electric push rod is controlled to drive the lifting frame 65 to move downwards to the inside of the lifting groove, so that the regenerated catalyst is discharged through the discharge hopper 33 under the action of self gravity.
Working principle: during operation, firstly, the deactivated catalyst is put into the discharging hopper 32, then a valve on the discharging hopper 32 is opened, the deactivated catalyst enters the rotary discharging tray 61 under the action of self gravity, and the deactivated catalyst cannot fall off from the rotary discharging tray 61 because the baffle plate 62 is arranged on the outer side of the rotary discharging tray 61;
then, by controlling the electric push rod, the electric push rod can push the lifting frame 65 to lift out of the lifting groove of the rotary discharging disc 61, and the height of the lifting frame 65 is lower than that of the baffle plate 62, so that after the current two lifting frames 65 and the storage groove formed by the rotary discharging disc 61 are filled with the deactivated catalyst, the deactivated catalyst can pass through the lifting frame 65 and enter the storage groove formed by the next two lifting frames 65 and the rotary discharging disc 61, and sequentially move downwards until all the storage grooves formed by the two lifting frames 65 on the rotary discharging disc 61 are filled with the deactivated catalyst, the thickness of the deactivated catalyst filled in the storage groove formed by the two lifting frames 65 can be adjusted by controlling the height of the lifting frame 65, and the time of the regeneration reaction can be controlled by controlling the thickness of the deactivated catalyst;
closing a valve on the discharging hopper 32 to prevent the deactivated catalyst from entering, then starting an external hydrogen supply device to supply hydrogen to the connecting frame 51 and the atmosphere maintaining tube 71, and simultaneously transmitting signals to a controller through the external device, wherein the controller controls the temperature inside the temperature control plate regeneration furnace body 2 to be adjusted, and in the regeneration reaction process, the temperature sensor timely detects the reaction temperature at the corresponding position and timely adjusts the reaction temperature, so that the reaction temperature of the deactivated catalyst in different areas can be timely and accurately adjusted according to the regeneration reaction temperature of the deactivated catalyst in different areas, and the temperature cannot be adjusted in a targeted manner due to different regeneration reaction rates of the deactivated catalyst in different areas can be avoided;
the hydrogen entering the inside of the connecting frame 51 enters the inside of the lifting frame 65 through the gas feeding column 52, the communication hole 53 and the gas inlet pipes 63, and because the two gas inlet pipes 63 are distributed in a staggered way, when the hydrogen is led in by the gas inlet pipes 63 at the two sides, the two hydrogen flows cannot collide with each other, so that the situation that the content of the hydrogen at the collision part is small due to the collision between the two hydrogen flows is avoided, and the hydrogen at the collision position is too small, so that the hydrogen at the position cannot be uniformly mixed with the deactivated catalyst, and the regeneration efficiency of the deactivated catalyst is reduced;
the hydrogen gas entering the lifting frame 65 enters the inside of the guide pipe 66, and the gas pipe 68 is arranged in the guide pipe 66, so that the hydrogen gas entering the guide pipe 66 can squeeze the gas pipe 68 to move outwards until the vent holes on the gas pipe 68 are moved out of the guide pipe 66, the gas pipe 68 after the outward movement enters the inside of the deactivated catalyst, and the hydrogen gas can be removed from the vent holes in the gas pipe 68 after the outward movement, and the hydrogen gas can be uniformly mixed with the deactivated catalyst because the gas pipe 68 after the outward movement enters the inside of the deactivated catalyst, so that the regeneration efficiency of the deactivated catalyst is improved;
since the deactivated catalyst generates more water vapor and hydrogen sulfide during the regeneration reaction and the water vapor and the hydrogen sulfide exist on the surface of the deactivated catalyst, the hydrogen gas is discharged into the deactivated catalyst, the water vapor and the hydrogen sulfide generated during the regeneration reaction can be rapidly discharged, and the hydrogen sulfide slowly rises in the regeneration furnace 2 or is deposited at the bottom of the regeneration furnace 2 due to the higher temperature during the regeneration reaction and the higher air density of the hydrogen sulfide than the density of the hydrogen gas, so that the hydrogen sulfide is insufficient in the regeneration furnace 2, the hydrogen gas atmosphere is introduced into the regeneration furnace 2 from bottom to top through the atmosphere maintaining pipe 71 and the through hole 72, the waste gas such as the hydrogen sulfide in the regeneration furnace 2 can be discharged through the hydrogen gas, and the waste gas such as the hydrogen sulfide in the gas collecting bottle 41 is sucked away through the gas collecting pump and the one-way pipe 42, thereby the concentration of the hydrogen gas atmosphere in the regeneration furnace 2 is maintained;
after the regeneration reaction is finished, a valve on the discharge hopper 33 is opened, and the electric push rod is controlled to drive the lifting frame 65 to move downwards to the inside of the lifting groove, so that the regenerated catalyst is discharged through the discharge hopper 33 under the action of self gravity.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The hydrogenation catalyst regeneration device comprises a base (1), and is characterized in that: the top of the base (1) is fixedly connected with a regeneration furnace body (2) for carrying out hydrogenation regeneration on the deactivated catalyst;
the inside fixed mounting of regeneration furnace body (2) has blowing mechanism (6) that are used for carrying out even tiling to the deactivated catalyst, blowing mechanism (6) are including encircling rotatory blowing dish (61) of distributing in regeneration furnace body (2) inside from top to bottom, the outside fixedly connected with of rotatory blowing dish (61) is used for carrying out baffle (62) of separation to the deactivated catalyst, the standing groove has been seted up to the inboard of baffle (62), the inside fixed mounting of standing groove has temperature control subassembly (64) that are used for controlling the temperature in the deactivated catalyst regeneration reaction, the multiunit lifting groove has been seted up to the inside of rotatory blowing dish (61), multiunit lifting groove's bottom all is through electric putter fixedly connected with lifting frame (65), the outside fixedly connected with a plurality of pipes (66) of lifting frame (65), pipe (66) are through elastic component (67) sliding connection have gas-supply pipe (68) that are used for keeping the inside hydrogen concentration of deactivated catalyst and discharging waste gas;
a gas transmission mechanism (5) for supplying hydrogen to the inside of the lifting frame (65) is fixedly connected to the inside of the regeneration furnace body (2);
the top of the base (1) is fixedly connected with a gas collection mechanism (4) for continuously recycling waste gas generated in the regeneration reaction of the deactivated catalyst;
an atmosphere maintaining mechanism (7) for maintaining the hydrogen atmosphere concentration and promoting the exhaust gas to be discharged is fixedly connected inside the base (1);
the conveying and taking mechanism (3) for feeding and taking materials to the rotary discharging disc (61) is fixedly arranged at the top of the base (1), the conveying and taking mechanism (3) comprises a supporting rod (31) fixedly arranged at the top of the base (1), a discharging hopper (32) is fixedly arranged at the top of the supporting rod (31), the discharging hopper (32) is connected with the rotary discharging disc (61), and a discharging hopper (33) for discharging materials is connected below the rotary discharging disc (61);
the gas transmission mechanism (5) comprises a connecting frame (51) fixedly connected to the top of the base (1), a gas transmission column (52) is fixedly connected to the top of the connecting frame (51), the inside of the connecting frame (51) is communicated with the inside of the gas transmission column (52), and a communication hole (53) is formed in the inner side of the gas transmission column (52);
the two sides of the lifting frame (65) are fixedly connected with air inlet pipes (63), the two air inlet pipes (63) are arranged in a staggered mode, and the air inlet pipes (63) penetrate through the baffle plate (62) and then are communicated with the communication holes (53);
a limiting groove is formed in the guide pipe (66), a limiting block is fixedly connected to the outer side of the air pipe (68), and the air pipe (68) is arranged in the guide pipe (66) in a sliding limiting mode through an elastic assembly (67);
the atmosphere maintaining mechanism (7) comprises an atmosphere maintaining pipe (71) fixedly connected to the top of the base (1), a plurality of groups of through holes (72) are uniformly formed in the atmosphere maintaining pipe (71), and the atmosphere maintaining pipe (71) and the connecting frame (51) are communicated with external hydrogen supply equipment.
2. The hydrogenation catalyst regeneration apparatus according to claim 1, wherein: the gas collection mechanism (4) comprises a gas collection bottle (41), a gas collection pump is arranged outside the gas collection bottle (41), an air outlet of the gas collection pump is communicated with the gas collection bottle (41) through a pipeline, and an air inlet of the gas collection pump extends to the inside of the regeneration furnace body (2) through a one-way pipe (42).
3. The hydrogenation catalyst regeneration apparatus according to claim 1, wherein: the temperature control assembly (64) comprises a temperature control sheet, a controller and a temperature sensor, wherein the temperature sensor is in signal connection with the controller, the controller is in signal connection with the temperature control sheet, and the controller is in signal connection with external equipment.
4. A hydrogenation catalyst regeneration method is characterized in that: use of a hydrogenation catalyst regeneration apparatus according to any one of claims 1-3, comprising in particular the steps of:
step one: firstly, putting an inactivated catalyst into a rotary discharging tray (61);
step two: then, an electric push rod is started, the electric push rod pushes the lifting frames (65) to lift out of lifting grooves of the rotary discharging disc (61), the top ends of the lifting frames (65) are lower than the baffle plates (62), a storage groove is formed between two adjacent lifting frames (65) and the rotary discharging disc (61), and after the front storage groove is filled, the deactivated catalyst enters the rear storage groove and moves downwards in sequence until all storage grooves on the rotary discharging disc (61) are filled with the deactivated catalyst;
step three: starting an external hydrogen supply device to supply hydrogen to the gas transmission mechanism (5) and the atmosphere maintenance mechanism (7), and adjusting the temperature inside the regeneration furnace body (2) through the temperature control assembly (64), so that the deactivated catalyst can be subjected to a regeneration reaction, and during the regeneration reaction, the waste gas inside the regeneration furnace body (2) is extracted and collected through the gas collection mechanism (4);
step four: after the regeneration reaction is finished, the electric push rod is controlled to drive the lifting frame (65) to move downwards to the inside of the lifting groove, and at the moment, the regenerated catalyst is discharged through the bottom end of the rotary discharging disc (61) under the action of self gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410108120.7A CN117643836B (en) | 2024-01-26 | 2024-01-26 | Hydrogenation catalyst regeneration device and regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410108120.7A CN117643836B (en) | 2024-01-26 | 2024-01-26 | Hydrogenation catalyst regeneration device and regeneration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117643836A CN117643836A (en) | 2024-03-05 |
| CN117643836B true CN117643836B (en) | 2024-04-09 |
Family
ID=90043588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410108120.7A Active CN117643836B (en) | 2024-01-26 | 2024-01-26 | Hydrogenation catalyst regeneration device and regeneration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117643836B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5821270A (en) * | 1997-05-02 | 1998-10-13 | Exxon Research And Engineering Company | Slurry hydrocarbon synthesis process with multistage catalyst rejuvenation |
| CN103182328A (en) * | 2011-12-29 | 2013-07-03 | 神华集团有限责任公司 | Regeneration method of coal liquefied oil hydrogenation deactivated catalyst |
| CN214870394U (en) * | 2021-10-28 | 2021-11-26 | 山东昊瑞得智能科技有限公司 | Clamping equipment wide in application range |
-
2024
- 2024-01-26 CN CN202410108120.7A patent/CN117643836B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5821270A (en) * | 1997-05-02 | 1998-10-13 | Exxon Research And Engineering Company | Slurry hydrocarbon synthesis process with multistage catalyst rejuvenation |
| CN103182328A (en) * | 2011-12-29 | 2013-07-03 | 神华集团有限责任公司 | Regeneration method of coal liquefied oil hydrogenation deactivated catalyst |
| CN214870394U (en) * | 2021-10-28 | 2021-11-26 | 山东昊瑞得智能科技有限公司 | Clamping equipment wide in application range |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117643836A (en) | 2024-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110384980B (en) | Catalytic filter element, preparation method and device thereof, and application of device | |
| CN101574622A (en) | Dry-method desulphurization and deodorization technology with high efficiency low pressure drop | |
| CN117643836B (en) | Hydrogenation catalyst regeneration device and regeneration method | |
| CN112892508A (en) | Green regeneration and quality improvement system and method for hazardous waste activated carbon | |
| CN201871489U (en) | Separator for separating catalysts with different inactive degree | |
| CN107029690B (en) | Powdered activated carbon regeneration furnace for pretreatment by high-efficiency catalytic oxidation method | |
| CN103752981B (en) | Metal beehive carrier inner core solder upload device and implementing process thereof | |
| CN108525403B (en) | Paint mist dry type filtering module and purifying device applied by same | |
| CN114436463A (en) | Sewage advanced treatment system | |
| CN201832535U (en) | Desulfurization and denitration integrated device utilizing carbon method | |
| CN210595927U (en) | High-temperature catalytic pyrolysis household garbage hydrogen filtering device with reproducible catalyst | |
| CN108114575A (en) | A kind of separate type emission-control equipment and processing method | |
| CN212225357U (en) | DPF regeneration device | |
| CN111250070B (en) | Regeneration device and recovery method for waste mercury adsorption material | |
| CN210285698U (en) | Active carbon not damaged transport system | |
| CN213493438U (en) | Preparation system of liquid-phase dechlorinating agent | |
| CN112939228A (en) | Immobilized microorganism sewage treatment device and method | |
| CN209810184U (en) | Desorption device of refined regeneration base oil of silica gel | |
| JP2001271074A (en) | Method for desulfurizing coke oven gas | |
| CN205182746U (en) | Catalyst regeneration tower | |
| CN102489342B (en) | Catalytic cracking regenerated catalyst system and gas collecting method | |
| CN1247886A (en) | Catalytic conversion process in counter-flow moving bed with several reactors | |
| CN210449219U (en) | Heavy distillate oil hydrotreating catalyst reactivation system | |
| CN215288593U (en) | Fluidized bed device for treating waste plastics | |
| CN109233930A (en) | It is a kind of for removing the device and removal methods of hydrogen sulfide in methane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |