CN215327921U - Up-flow reactor capable of realizing uniform distribution of axial catalyst concentration and reactor system - Google Patents
Up-flow reactor capable of realizing uniform distribution of axial catalyst concentration and reactor system Download PDFInfo
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- CN215327921U CN215327921U CN202120748882.5U CN202120748882U CN215327921U CN 215327921 U CN215327921 U CN 215327921U CN 202120748882 U CN202120748882 U CN 202120748882U CN 215327921 U CN215327921 U CN 215327921U
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Abstract
The utility model relates to the technical field of petrochemical industry, in particular to an upflow reactor and a reactor system capable of realizing uniform distribution of axial catalyst concentration. The upflow reactor of the utility model is provided with the liquid phase circulating pump to send the high solid-containing liquid phase in the bottom area of the reactor to the upper area of the reactor, thus realizing the uniform distribution of the concentration of the catalyst in the axial direction of the reactor.
Description
Technical Field
The utility model relates to the technical field of petrochemical industry, in particular to an upflow reactor and a reactor system capable of realizing uniform distribution of axial catalyst concentration.
Background
The upflow reactor is a gas-liquid-solid three-phase reactor, and generally the density of the solid is far greater than that of the liquid, and the density of the liquid is far greater than that of the gas, which results in the catalyst concentration in the bottom area of the reactor being far greater than that in the upper area. The difference of the catalyst concentration in the vertical direction of the reactor can bring about a plurality of problems, for example, the gas-liquid distribution effect of the bottom material is poor due to the overlarge catalyst concentration in the bottom area of the reactor, and the temperature runaway and coking are easily caused due to the overlarge reaction effect; the upper region of the reactor has poor reaction effect and low utilization efficiency of the reactor space due to the excessively low concentration of the catalyst.
Therefore, an upflow reactor is needed to solve the axial concentration nonuniformity of the catalyst.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide an upflow reactor capable of realizing uniform distribution of axial catalyst concentration.
It is another object of the present invention to provide an upflow reactor system.
The purpose of the utility model is realized by the following technical scheme: the utility model provides a can realize axial catalyst concentration evenly distributed's upflow reactor, upflow reactor includes the reactor casing, sets up in the reaction material entry of reactor casing bottom and sets up in the reaction gaseous phase export at reactor casing top, middle part in the reactor casing is the upflow reaction zone, and bottom in the reactor casing is provided with the entry distributor, and the bottom lateral wall of reactor casing is provided with solid sediment circulation export, and solid sediment circulation export is connected with the slurry circulation pump, and the exit linkage of slurry circulation pump is on the upper portion of upflow reaction zone, and the top in the reactor casing is provided with the liquid collecting tank, and the top of liquid collecting tank is provided with the grid, and the bottom that the reactor casing corresponds the liquid collecting tank is provided with the reaction liquid phase export.
Preferably, the upflow reaction zone is provided with a reflux device.
Preferably, the upflow reaction zone is provided with means for on-line addition and removal of catalyst.
Preferably, the upflow reaction zone is an ebullated bed or a suspended bed.
Preferably, the slurry circulating pump is a canned pump.
The other purpose of the utility model is realized by the following technical scheme: an upflow reactor system, said reactor system including the raw material conveying unit, product separation unit and the above-mentioned upflow reactor;
the raw material conveying unit comprises a raw oil conveying pipeline and a hydrogen conveying pipeline connected to the raw oil conveying pipeline, and an outlet of the raw oil conveying pipeline is connected with a reaction material inlet of the up-flow reactor;
the product separation unit comprises a heavy component separation device and a light component separation device, wherein an inlet of the heavy component separation device is connected with a reaction liquid phase outlet of the upflow reactor, and an inlet of the light component separation device is connected with a reaction gas phase outlet of the upflow reactor.
Preferably, the raw oil delivery pipeline is sequentially provided with a raw oil booster pump, a heat exchanger and a heating furnace, and the hydrogen delivery pipeline is connected between the raw oil booster pump and the heat exchanger.
Preferably, the light component separation device comprises a fixed bed reactor, a light component separator, a light component fractionating tower, a recycle oil booster pump and a recycle hydrogen compressor, an inlet of the fixed bed reactor is connected with a reaction gas phase outlet of the upflow reactor, an outlet of the fixed bed reactor is connected with an inlet of the light component separator, a hydrogen outlet of the light component separator is connected with an inlet of the recycle hydrogen compressor, an outlet of the recycle hydrogen compressor is connected with an inlet of the hydrogen conveying pipeline, a liquid phase outlet of the light component separator is connected with an inlet of the light component fractionating tower, a recycle oil outlet of the light component fractionating tower is connected with an inlet of the recycle oil booster pump, and an outlet of the recycle oil booster pump is connected between a reaction gas phase outlet of the upflow reactor and an inlet of the fixed bed reactor.
Preferably, the heavy component separation device comprises a heavy component separator and a heavy component fractionating tower, an inlet of the heavy component separator is connected with a reaction liquid phase outlet of the upflow reactor, an outlet of the heavy component separator is connected with an inlet of the heavy component fractionating tower, a residual oil outlet of the heavy component fractionating tower is connected with an inlet of the raw oil conveying pipeline, and a recycle oil outlet of the heavy component fractionating tower is connected with an inlet of the recycle oil booster pump.
Preferably, the operating conditions of the upflow reaction zone are: the temperature is 160-470 ℃, and the pressure is 3.0-20.0 MPa.
The utility model has the beneficial effects that: the upflow reactor of the utility model has the following advantages:
(1) by arranging the slurry circulating pump, the high-concentration liquid phase at the bottom of the reactor is sent to the upper part of the reactor, so that the uniform distribution of the axial catalyst concentration of the reactor is realized;
(2) the catalyst concentration in the whole axial space of the reactor is uniformly distributed, so that the high-efficiency utilization of the reaction space is realized;
(3) the uniform degree of reaction in the reactor is realized by controlling the circulation rate of the slurry circulating pump, and cooling media such as cooling hydrogen or cooling oil can be avoided;
(4) through set up the liquid collecting box that has the interception function at the reactor top, on the one hand can intercept the catalyst of big granule and be taken out of reaction system, and on the other hand can accomplish reaction material's separation space and reaction space in an equipment, has effectively reduced equipment investment and complexity.
The upflow reactor system of the present invention has the following advantages:
(1) the circulating residual oil is circulating oil containing a catalyst, the mixture of the circulating residual oil and the raw oil is recycled, and the deactivated catalyst can be intermittently separated and thrown outwards;
(2) the recycle oil obtained by separating the liquid phase from the gas phase and the gas phase enter a fixed bed reactor for refining, so that the yield of the product oil is improved;
(3) the light component separator separates recycle hydrogen and light component oil, the recycle hydrogen is mixed with new hydrogen after being boosted by a recycle hydrogen compressor, one part of the mixed hydrogen is mixed with raw oil, and the other part of the mixed hydrogen is used as a cooling medium of an up-flow hydrogenation reactor and a fixed bed reactor, so that the utilization efficiency of the hydrogen is improved.
Drawings
FIG. 1 is a schematic view of the structure of an upflow reactor according to the present invention.
FIG. 2 is a schematic diagram of the configuration of the upflow reactor system of the present invention.
The reference signs are: the device comprises an upflow reactor 1, a reactor shell 10, a reaction material inlet 11, a reaction gas phase outlet 12, a solid slag circulating outlet 13 and a reaction liquid phase outlet 14;
an upflow reaction zone 21, an inlet distributor 22, a slurry circulating pump 23, a header tank 24 and a grid 25;
a raw oil delivery pipe 31; a hydrogen conveying pipeline 32, a raw oil booster pump 33, a heat exchanger 34 and a heating furnace 35;
a fixed bed reactor 41, a light component separator 42, a light component fractionating tower 43, a recycle oil booster pump 44, and a recycle hydrogen compressor 45;
a heavy component separator 51 and a heavy component fractionating tower 52.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-2, which are not intended to limit the present invention.
Example one
Referring to fig. 1, an upflow reactor capable of realizing uniform distribution of axial catalyst concentration, where the upflow reactor 1 includes a reactor shell 10, a reaction material inlet 11 disposed at the bottom of the reactor shell 10, and a reaction gas phase outlet 12 disposed at the top of the reactor shell 10, the middle of the reactor shell 10 is an upflow reaction zone 21, the bottom of the reactor shell 10 is provided with an inlet distributor 22, the bottom side wall of the reactor shell 10 is provided with a solid slag circulation outlet 13, the solid slag circulation outlet 13 is connected with a slurry circulation pump 23, the outlet of the slurry circulation pump 23 is connected to the upper part of the upflow reaction zone 21, the top of the reactor shell 10 is provided with a liquid collection tank 24, the top of the liquid collection tank 24 is provided with a grid 25, and the bottom of the reactor shell 10 corresponding to the liquid collection tank 24 is provided with a reaction liquid phase outlet 14. The inlet distributor 22 is used for distributing raw oil, hydrogen and catalyst, and improves the utilization space of the bottom of the reactor. The solid residue circulation outlet 13 is used for collecting and discharging high-concentration solid catalyst liquid, the solid residue circulation outlet 13 is connected with the slurry circulation pump 23, and the high-concentration catalyst liquid is sent to the upper reaction area of the upflow reactor 1 after being boosted by the slurry circulation pump 23. Liquid collection box 24 can play the gas-liquid separation effect to reaction material on the one hand, and on the other hand through set up grid 25 at the top, can effectively intercept the solid catalyst of large granule.
In this embodiment, the upflow reaction zone 21 is provided with a reflux device. The upflow reactor 1 may be hollow cylinder structure, or may be a device with natural internal reflux and forced internal reflux.
In this embodiment, the upflow reaction zone 21 is provided with means for on-line addition and removal of catalyst.
In this embodiment, the upflow reaction zone 21 is an ebullated bed or a suspended bed.
In this embodiment, the slurry circulation pump 23 is a shield pump.
The upflow reaction zone 21 of the upflow reactor 1 of the present invention is subjected to a hydrogenation process of a hydrocarbon feedstock selected from one or more of the following: coal tar (such as high-temperature coal tar, medium-temperature coal tar and low-temperature coal tar) or distillate oil thereof; ② coal or coal liquefaction oil obtained in the liquefaction process or distillate oil thereof; ③ shale oil or distillate oil thereof; ethylene cracking tar; biomass liquid fuels such as animal and vegetable oil and fat; sixthly, high polymer such as waste plastic; seventhly, wood tar or distillate oil thereof obtained by dry distillation of the broad-leaf trees; eighthly, thermally cracking tar oil by petroleum-based wax oil; ninthly, petroleum sand-based heavy oil or oil products obtained in the thermal processing process; the oil in the r side is based on the oil obtained from the hot oil processing.
The upflow reactor 1 of the present invention may also comprise the following basic and auxiliary components:
basic components:
measuring instruments possibly installed: temperature measuring components for measuring the temperature of a medium in the reactor, such as a thermocouple, a pressure gauge for measuring the pressure in the reactor, and a liquid level meter for measuring the liquid level of the reactor, such as a glass plate, a buoy, a double-flange differential pressure gauge, a guided wave radar, a ray level gauge and the like;
outlet rectifying means: such as collectors, vortex breakers, demisters (breakers).
An auxiliary component: external insulation, supports (skirts or lugs), foundations, ladders, operating platforms and possible fire fittings such as steam fire rings; according to the conditions of geology, gas phase and the like of a construction area, the conditions of equipment weight, height and the like are combined, and piling is needed below the foundation according to needs to control the settling velocity of the reactor foundation.
Example two
Referring to fig. 2, an upflow reactor system, said reactor system includes the raw material conveying unit, the product separation unit and the above-mentioned upflow reactor 1;
the raw material conveying unit comprises a raw oil conveying pipeline 31 and a hydrogen conveying pipeline 32 connected to the raw oil conveying pipeline 31, and an outlet of the raw oil conveying pipeline 31 is connected with a reaction material inlet 11 of the upflow reactor 1;
the product separation unit comprises a heavy component separation device and a light component separation device, wherein the inlet of the heavy component separation device is connected with the reaction liquid phase outlet 14 of the upflow reactor 1, and the inlet of the light component separation device is connected with the reaction gas phase outlet 12 of the upflow reactor 1.
In this embodiment, the stock oil feed line 31 is provided with a stock oil booster pump 33, a heat exchanger 34, and a heating furnace 35 in this order, and the hydrogen feed line 32 is connected between the stock oil booster pump 33 and the heat exchanger 34.
In this embodiment, the light component separation device includes a fixed bed reactor 41, a light component separator 42, the inlet of the fixed bed reactor 41 is connected with the reaction gas phase outlet 12 of the upflow reactor 1, the outlet of the fixed bed reactor 41 is connected with the inlet of the light component separator 42, the hydrogen outlet of the light component separator 42 is connected with the inlet of the recycle hydrogen compressor 45, the outlet of the recycle hydrogen compressor 45 is connected with the inlet of the hydrogen conveying pipeline 32, the liquid phase outlet of the light component separator 42 is connected with the inlet of the light component fractionating tower 43, the recycle oil outlet of the light component fractionating tower 43 is connected with the inlet of the recycle oil booster pump 44, and the outlet of the recycle oil booster pump 44 is connected between the reaction gas phase outlet 12 of the upflow reactor 1 and the inlet of the fixed bed reactor 41.
In this embodiment, the heavy component separation device includes a heavy component separator 51 and a heavy component fractionating tower 52, an inlet of the heavy component separator 51 is connected to the reaction liquid phase outlet 14 of the upflow reactor 1, an outlet of the heavy component separator 51 is connected to an inlet of the heavy component fractionating tower 52, a residual oil outlet of the heavy component fractionating tower 52 is connected to an inlet of the raw oil delivery pipeline 31, and a recycle oil outlet of the heavy component fractionating tower 52 is connected to an inlet of the recycle oil booster pump 44.
In this embodiment, the operating conditions of the upflow reaction zone 21 are as follows: the temperature is 160-470 ℃, and the pressure is 3.0-20.0 MPa.
The catalytic hydrogenation process of the upflow reactor system comprises the following steps:
(1) raw oil is mixed with hydrogen after being boosted by a raw material booster pump, and the mixed material enters an upflow reactor 1 after being subjected to heat exchange by a heat exchanger 34 and heating by a heating furnace 35; the solid residue circulating outlet 13 is connected with a slurry circulating pump 23, and the high-concentration catalyst liquid is sent to the upper reaction area of the upflow reactor 1 after being boosted by the slurry circulating pump 23;
(2) the liquid phase of the upflow reactor 1 is connected with the heavy component separator 51, and the liquid phase of the heavy component separator 51 enters the heavy component fractionating tower 52 for further separation; heavy components are fractionated by a heavy component fractionating tower 52 to obtain recycle oil a and recycle residual oil, the recycle residual oil is recycle oil containing a catalyst, the recycle residual oil and raw oil are mixed and recycled, and the deactivated catalyst can be intermittently separated and thrown out;
(3) the gas phase of the upflow reactor 1 enters a fixed bed reactor 41 for the next refining, the outlet of the fixed bed reactor 41 is connected with a light component separator 42, and the light component separator 42 separates the recycle hydrogen and the light component oil; the recycle hydrogen is mixed with the new hydrogen after being boosted by a recycle hydrogen compressor 45, one part of the mixed hydrogen is mixed with the raw oil, and the other part of the mixed hydrogen is used as a cooling medium of the upflow reactor 1 and the fixed bed reactor 41; the light component oil enters a light component fractionating tower 43 for further separation, and the light component oil is separated by the light component fractionating tower 43 to obtain product gas, product oil and return oil b;
(4) the recycle oil a and the recycle oil b are mixed and then sent to the inlet of the fixed bed reactor 41 after being boosted by the recycle oil booster pump 44, and are recycled.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (9)
1. An upflow reactor capable of realizing uniform distribution of axial catalyst concentration, which comprises a reactor shell, a reaction material inlet arranged at the bottom of the reactor shell and a reaction gas phase outlet arranged at the top of the reactor shell, and is characterized in that: the reactor comprises a reactor shell and is characterized in that an upflow reaction zone is arranged in the middle of the reactor shell, an inlet distributor is arranged at the bottom of the reactor shell, a solid slag circulating outlet is formed in the side wall of the bottom of the reactor shell and connected with a slurry circulating pump, the outlet of the slurry circulating pump is connected to the upper portion of the upflow reaction zone, a liquid collecting tank is arranged at the top of the reactor shell, a grid is arranged at the top of the liquid collecting tank, and a reaction liquid phase outlet is formed in the bottom of the reactor shell, corresponding to the liquid collecting tank.
2. An upflow reactor as in claim 1, which achieves uniform distribution of axial catalyst concentration, in which: the upflow reaction zone is provided with a reflux device.
3. An upflow reactor as in claim 1, which achieves uniform distribution of axial catalyst concentration, in which: the upflow reaction zone is provided with a device for adding and discharging the catalyst on line.
4. An upflow reactor as in claim 1, which achieves uniform distribution of axial catalyst concentration, in which: the upflow reaction zone is a boiling bed or a suspension bed.
5. An upflow reactor as in claim 1, which achieves uniform distribution of axial catalyst concentration, in which: the slurry circulating pump is a shield pump.
6. An upflow reactor system, characterized in that: the reactor system comprising a feed delivery unit, a product separation unit, and the upflow reactor of any of claims 1-5;
the raw material conveying unit comprises a raw oil conveying pipeline and a hydrogen conveying pipeline connected to the raw oil conveying pipeline, and an outlet of the raw oil conveying pipeline is connected with a reaction material inlet of the up-flow reactor;
the product separation unit comprises a heavy component separation device and a light component separation device, wherein an inlet of the heavy component separation device is connected with a reaction liquid phase outlet of the upflow reactor, and an inlet of the light component separation device is connected with a reaction gas phase outlet of the upflow reactor.
7. An upflow reactor system as in claim 6, in which: the raw oil conveying pipeline is sequentially provided with a raw oil booster pump, a heat exchanger and a heating furnace, and the hydrogen conveying pipeline is connected between the raw oil booster pump and the heat exchanger.
8. An upflow reactor system as in claim 6, in which: the light component separation device comprises a fixed bed reactor, a light component separator, a light component fractionating tower, a recycle oil booster pump and a recycle hydrogen compressor, wherein an inlet of the fixed bed reactor is connected with a reaction gas phase outlet of the upflow reactor, an outlet of the fixed bed reactor is connected with an inlet of the light component separator, a hydrogen outlet of the light component separator is connected with an inlet of the recycle hydrogen compressor, an outlet of the recycle hydrogen compressor is connected with an inlet of the hydrogen conveying pipeline, a liquid phase outlet of the light component separator is connected with an inlet of the light component fractionating tower, a recycle oil outlet of the light component fractionating tower is connected with an inlet of the recycle oil booster pump, and an outlet of the recycle oil booster pump is connected between a reaction gas phase outlet of the upflow reactor and an inlet of the fixed bed reactor.
9. An upflow reactor system as in claim 8, in which: the heavy component separation device comprises a heavy component separator and a heavy component fractionating tower, wherein the inlet of the heavy component separator is connected with the reaction liquid phase outlet of the upflow reactor, the outlet of the heavy component separator is connected with the inlet of the heavy component fractionating tower, the residual oil outlet of the heavy component fractionating tower is connected with the inlet of the raw oil conveying pipeline, and the recycle oil outlet of the heavy component fractionating tower is connected with the inlet of the recycle oil pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120748882.5U CN215327921U (en) | 2021-04-13 | 2021-04-13 | Up-flow reactor capable of realizing uniform distribution of axial catalyst concentration and reactor system |
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| CN202120748882.5U CN215327921U (en) | 2021-04-13 | 2021-04-13 | Up-flow reactor capable of realizing uniform distribution of axial catalyst concentration and reactor system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113105912A (en) * | 2021-04-13 | 2021-07-13 | 海南贝朗生物科技有限公司 | Upflow reactor capable of realizing uniform distribution of axial catalyst concentration, reactor system and catalytic hydrogenation process |
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2021
- 2021-04-13 CN CN202120748882.5U patent/CN215327921U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113105912A (en) * | 2021-04-13 | 2021-07-13 | 海南贝朗生物科技有限公司 | Upflow reactor capable of realizing uniform distribution of axial catalyst concentration, reactor system and catalytic hydrogenation process |
| CN113105912B (en) * | 2021-04-13 | 2023-07-28 | 上海科瑞德能源科技有限公司 | Up-flow reactor capable of realizing uniform distribution of axial catalyst concentration, reactor system and catalytic hydrogenation process |
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Effective date of registration: 20220901 Address after: No. 8, South 1st Row, Xinxing Road, Xinle City, Shijiazhuang City, Hebei Province, 050000 Patentee after: Shijiazhuang Ruitu Biotechnology Co.,Ltd. Address before: 570000 Room 201, building B, National University Science Park, Hainan Normal University, No.3 Haitao Avenue, Jiangdong new district, Haikou City, Hainan Province Patentee before: Hainan Bailang Biotechnology Co.,Ltd. |
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Effective date of registration: 20220926 Address after: 201913 No. 495, Yuejin South Road, Xinhai Town, Chongming District, Shanghai (Guangming Rice Industry Economic Park) Patentee after: Shanghai Kered Energy Technology Co.,Ltd. Address before: No. 8, South 1st Row, Xinxing Road, Xinle City, Shijiazhuang City, Hebei Province, 050000 Patentee before: Shijiazhuang Ruitu Biotechnology Co.,Ltd. |
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Granted publication date: 20211228 Effective date of abandoning: 20230728 |
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| AV01 | Patent right actively abandoned |