CN214553387U - Hydrogenation reactor using upflow bed and downflow bed in combination - Google Patents
Hydrogenation reactor using upflow bed and downflow bed in combination Download PDFInfo
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- CN214553387U CN214553387U CN202023223074.1U CN202023223074U CN214553387U CN 214553387 U CN214553387 U CN 214553387U CN 202023223074 U CN202023223074 U CN 202023223074U CN 214553387 U CN214553387 U CN 214553387U
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- upflow
- downflow
- reaction zone
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- bed layer
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- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 84
- 238000005192 partition Methods 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000003054 catalyst Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000004519 grease Substances 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to the technical field of petrochemical industry, in particular to a hydrogenation reactor combining an upflow bed layer and a downflow bed layer, which comprises a reactor shell, an upflow reaction zone and a downflow reaction zone, wherein the upflow reaction zone and the downflow reaction zone are arranged in the reactor shell; the upflow reaction zone comprises a distribution disc, a partition plate arranged below the distribution disc, an upflow bed layer arranged above the distribution disc, an interception net arranged above the upflow bed layer and a connecting pipe connected between the interception net and the partition plate, wherein the middle part of the connecting pipe penetrates through the distribution disc and the upflow bed layer. The utility model discloses a hydrogenation ware divide into upflow reaction zone and downflow reaction zone, and the downflow reaction zone includes two at least downflow beds, can set up the catalyst of different grade type, the rapid processing of the grease class raw materials of being convenient for, and equipment investment cost is low, and the energy consumption is low.
Description
Technical Field
The utility model relates to a petrochemical technical field, concretely relates to hydrogenation ware of combination use upflow bed and downflow bed.
Background
The reactors can be divided into upflow and downflow reactors according to the material flow direction.
The upflow reactor belongs to a full back-mixing reaction model, has the advantages of good heat transfer quality, wide raw material applicability, slow bed pressure drop rise and the like, and comparative analysis shows that the pre-hydrogenation processes of hydrodeoxygenation, demetalization, phospholipid removal and the like of the grease raw materials need to adopt an upflow reactor form. However, the upflow reactor also has the characteristics of poor product quality, short gas phase retention time, low catalyst concentration and the like. Therefore, the single up-flow reactor can not produce products with extremely low content of impurities such as oxygen, sulfur, nitrogen and the like (less than 10 ppm).
The downflow fixed bed reactor belongs to a typical plug flow reactor, also called a plug flow reactor. The method has the advantages of good product quality and large catalyst filling volume ratio, but also has the defects of poor heat and mass transfer, easy rise of bed pressure drop and the like.
Therefore, to produce a biodiesel component meeting the standard, the product of the pre-hydrogenation process is passed through a down-flow fixed bed reactor to further remove the remaining sulfur, nitrogen, oxygen and other heteroatoms.
In view of the above, it can be seen that in the processing of the oil-and-fat-type feedstock, an upflow reactor and a downflow fixed bed reactor are used in combination, and the downflow fixed bed reactor is also provided with reactors of different catalyst types, so that the equipment investment and energy consumption become large if the three processes are separately processed by different devices. Therefore, a reactor structure combining these reactors is desired.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a hydrogenation reactor which combines an upflow bed layer and a downflow bed layer.
The purpose of the utility model is realized through the following technical scheme: a hydrogenation reactor using an upflow bed and a downflow bed in combination comprises a reactor shell, and an upflow reaction zone and a downflow reaction zone which are arranged in the reactor shell, wherein the upflow reaction zone is arranged above the downflow reaction zone, and the downflow reaction zone comprises at least two downflow beds; the upflow reaction zone comprises a distribution disc, a partition plate arranged below the distribution disc, an upflow bed layer arranged above the distribution disc, an interception net arranged above the upflow bed layer and a connecting pipe connected between the interception net and the partition plate, wherein the middle part of the connecting pipe penetrates through the distribution disc and the upflow bed layer; a raw material inlet is arranged between the distribution disc and the partition plate, a recycle oil inlet is arranged at the top of the reactor shell, a product outlet is arranged at the bottom of the reactor shell, and cold hydrogen inlets are arranged in the upflow reaction zone and the downflow reaction zone.
Further, the downflow beds comprise a first downflow bed and a second downflow bed arranged below the first downflow bed, and the cold hydrogen inlet of the downflow reaction zone is arranged between the first downflow bed and the second downflow bed.
The purpose of the utility model can also be realized through the following technical scheme: a hydrogenation reactor using an upflow bed and a downflow bed in combination comprises a reactor shell, and an upflow reaction zone and a downflow reaction zone which are arranged in the reactor shell, wherein the upflow reaction zone is arranged above the downflow reaction zone, and the downflow reaction zone comprises at least two downflow beds; the upflow reaction zone comprises a distribution disc, a partition plate arranged below the distribution disc and an upflow bed layer arranged above the distribution disc, wherein a connecting pipe is arranged in the middle of the upflow bed layer, the bottom of the connecting pipe is connected with the distribution disc, a connecting channel is arranged between the outer side wall of the upflow bed layer and the inner side wall of the reactor shell, the top of the upflow bed layer is in an inverted cone shape, the top of the upflow bed layer and the top of the connecting channel are closed, and an intercepting net is arranged between the outer side of the top of the upflow bed layer and the inner side of the top of the connecting channel; the top of the reactor shell is provided with a raw material inlet, a recycle oil inlet is arranged between the first downflow bed layer and the partition plate, the bottom of the reactor shell is provided with a product outlet, and the downflow reaction zone is provided with a cold hydrogen inlet.
Further, the downflow beds comprise a first downflow bed and a second downflow bed arranged below the first downflow bed, and the cold hydrogen inlet of the downflow reaction zone is arranged between the first downflow bed and the second downflow bed.
The purpose of the utility model can also be realized through the following technical scheme: a hydrogenation reactor using an upflow bed and a downflow bed in combination comprises a reactor shell, and an upflow reaction zone and a downflow reaction zone which are arranged in the reactor shell, wherein the upflow reaction zone is arranged above the downflow reaction zone, and the downflow reaction zone comprises at least two downflow beds; the upflow reaction zone comprises a distribution disc, a partition plate arranged below the distribution disc and an upflow bed layer arranged above the distribution disc, wherein a connecting pipe is arranged in the middle of the upflow bed layer, the bottom of the connecting pipe is connected with the partition plate, a connecting channel is arranged between the outer side wall of the upflow bed layer and the inner side wall of the reactor shell, the top of the upflow bed layer is conical, the top of the upflow bed layer and the top of the connecting pipe are closed, and an intercepting net is arranged between the inner side of the top of the upflow bed layer and the top of the connecting pipe; the top of the reactor shell is provided with a raw material inlet, a recycle oil inlet is arranged between the first downflow bed layer and the partition plate, the bottom of the reactor shell is provided with a product outlet, and the downflow reaction zone is provided with a cold hydrogen inlet.
Further, the downflow beds comprise a first downflow bed and a second downflow bed arranged below the first downflow bed, and the cold hydrogen inlet of the downflow reaction zone is arranged between the first downflow bed and the second downflow bed.
The beneficial effects of the utility model reside in that: the utility model discloses a hydrogenation ware divide into upflow reaction zone and downflow reaction zone, and the downflow reaction zone includes two at least downflow beds, can set up the catalyst of different grade type, the rapid processing of the grease class raw materials of being convenient for, and equipment investment cost is low, and the energy consumption is low.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
The reference signs are: the reactor comprises a reactor shell 1, a raw material inlet 101, a recycle oil inlet 102, a product outlet 103, a cold hydrogen inlet 104, an upflow reaction zone 11, a distribution plate 111, a partition plate 112, an upflow bed layer 113, an interception net 114, a connecting pipe 115, a connecting channel 116, a downflow reaction zone 12, a first downflow bed layer 121 and a second downflow bed layer 122.
Detailed Description
In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-3, which are not intended to limit the present invention.
As shown in fig. 1, a first embodiment of a hydrogenation reactor of the present invention includes a reactor housing 1, and an upflow reaction zone 11 and a downflow reaction zone 12 disposed in the reactor housing 1, wherein the upflow reaction zone 11 is disposed above the downflow reaction zone 12, and the downflow reaction zone 12 includes at least two downflow beds; the upflow reaction zone 11 comprises a distribution tray 111, a partition plate 112 arranged below the distribution tray 111, an upflow bed layer 113 arranged above the distribution tray 111, an interception net 114 arranged above the upflow bed layer 113, and a connecting pipe 115 connected between the interception net 114 and the partition plate 112, wherein the middle part of the connecting pipe 115 passes through the distribution tray 111 and the upflow bed layer 113; a raw material inlet 101 is arranged between the distribution plate 111 and the partition plate 112, a recycle oil inlet 102 is arranged at the top of the reactor shell 1, a product outlet 103 is arranged at the bottom of the reactor shell 1, and cold hydrogen inlets 104 are arranged in the upflow reaction zone 11 and the downflow reaction zone 12.
In this embodiment, the downflow beds include a first downflow bed and a second downflow bed disposed below the first downflow bed, and the cold hydrogen inlet 104 of the downflow reaction zone 12 is disposed between the first downflow bed and the second downflow bed.
As shown in fig. 2, a second embodiment of the hydrogenation reactor of the present invention includes a reactor shell 1, and an upflow reaction zone 11 and a downflow reaction zone 12 disposed in the reactor shell 1, wherein the upflow reaction zone 11 is disposed above the downflow reaction zone 12, and the downflow reaction zone 12 includes at least two downflow beds; the upflow reaction zone 11 comprises a distribution tray 111, a partition plate 112 arranged below the distribution tray 111, and an upflow bed layer 113 arranged above the distribution tray 111, wherein a connecting pipe 115 is arranged in the middle of the upflow bed layer 113, the bottom of the connecting pipe 115 is connected with the distribution tray 111, a connecting channel 116 is arranged between the outer side wall of the upflow bed layer 113 and the inner side wall of the reactor shell 1, the top of the upflow bed layer 113 is in an inverted cone shape, the top of the upflow bed layer 113 and the top of the connecting channel 116 are closed, and an interception net 114 is arranged between the outer side of the top of the upflow bed layer 113 and the inner side of the top of the connecting channel 116; the top of the reactor shell 1 is provided with a raw material inlet 101, a recycle oil inlet 102 is arranged between the first downflow bed and the partition plate 112, the bottom of the reactor shell 1 is provided with a product outlet 103, and the downflow reaction zone 12 is provided with a cold hydrogen inlet 104.
In this embodiment, the downflow beds include a first downflow bed 121 and a second downflow bed 122 disposed below the first downflow bed, and the cold hydrogen inlet 104 of the downflow reaction zone 12 is disposed between the first downflow bed 121 and the second downflow bed 122.
In this embodiment, an intercepting net (not shown) is also disposed at the bottom of the connecting channel 116. The utility model adopts the interception net 114 to intercept the catalyst of the upflow bed layer 113.
As shown in fig. 3, a third embodiment of the hydrogenation reactor of the present invention includes a reactor shell 1, and an upflow reaction zone 11 and a downflow reaction zone 12 disposed in the reactor shell 1, wherein the upflow reaction zone 11 is disposed above the downflow reaction zone 12, and the downflow reaction zone 12 includes at least two downflow beds; the upflow reaction zone 11 comprises a distribution tray 111, a partition plate 112 arranged below the distribution tray 111, and an upflow bed layer 113 arranged above the distribution tray 111, wherein a connecting pipe 115 is arranged in the middle of the upflow bed layer 113, the bottom of the connecting pipe 115 is connected with the partition plate 112, a connecting channel 116 is arranged between the outer side wall of the upflow bed layer 113 and the inner side wall of the reactor shell 1, the top of the upflow bed layer 113 is conical, the top of the upflow bed layer 113 and the top of the connecting pipe 115 are closed, and an interception net 114 is arranged between the inner side of the top of the upflow bed layer 113 and the top of the connecting pipe 115; the top of the reactor shell 1 is provided with a raw material inlet 101, a recycle oil inlet 102 is arranged between the first downflow bed 121 and the partition plate 112, the bottom of the reactor shell 1 is provided with a product outlet 103, and the downflow reaction zone 12 is provided with a cold hydrogen inlet 104.
In this embodiment, the downflow beds include a first downflow bed 121 and a second downflow bed 122 disposed below the first downflow bed, and the cold hydrogen inlet 104 of the downflow reaction zone 12 is disposed between the first downflow bed 121 and the second downflow bed 122.
The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.
Claims (4)
1. A hydrogenation reactor using a combination of an upflow bed and a downflow bed, characterized in that: the reactor comprises a reactor shell, an upflow reaction zone and a downflow reaction zone, wherein the upflow reaction zone and the downflow reaction zone are arranged in the reactor shell; the upflow reaction zone comprises a distribution disc, a partition plate arranged below the distribution disc, an upflow bed layer arranged above the distribution disc, an interception net arranged above the upflow bed layer and a connecting pipe connected between the interception net and the partition plate, wherein the middle part of the connecting pipe penetrates through the distribution disc and the upflow bed layer; a raw material inlet is arranged between the distribution disc and the partition plate, a recycle oil inlet is arranged at the top of the reactor shell, a product outlet is arranged at the bottom of the reactor shell, and cold hydrogen inlets are arranged in the upflow reaction zone and the downflow reaction zone.
2. A hydrogenation reactor using a combination of an upflow bed and a downflow bed, characterized in that: the reactor comprises a reactor shell, an upflow reaction zone and a downflow reaction zone, wherein the upflow reaction zone and the downflow reaction zone are arranged in the reactor shell; the upflow reaction zone comprises a distribution disc, a partition plate arranged below the distribution disc and an upflow bed layer arranged above the distribution disc, wherein a connecting pipe is arranged in the middle of the upflow bed layer, the bottom of the connecting pipe is connected with the distribution disc, a connecting channel is arranged between the outer side wall of the upflow bed layer and the inner side wall of the reactor shell, the top of the upflow bed layer is in an inverted cone shape, the top of the upflow bed layer and the top of the connecting channel are closed, and an intercepting net is arranged between the outer side of the top of the upflow bed layer and the inner side of the top of the connecting channel; the top of the reactor shell is provided with a raw material inlet, a recycle oil inlet is arranged between the first downflow bed layer and the partition plate, the bottom of the reactor shell is provided with a product outlet, and the downflow reaction zone is provided with a cold hydrogen inlet.
3. A hydrogenation reactor using a combination of an upflow bed and a downflow bed, characterized in that: the reactor comprises a reactor shell, an upflow reaction zone and a downflow reaction zone, wherein the upflow reaction zone and the downflow reaction zone are arranged in the reactor shell; the upflow reaction zone comprises a distribution disc, a partition plate arranged below the distribution disc and an upflow bed layer arranged above the distribution disc, wherein a connecting pipe is arranged in the middle of the upflow bed layer, the bottom of the connecting pipe is connected with the partition plate, a connecting channel is arranged between the outer side wall of the upflow bed layer and the inner side wall of the reactor shell, the top of the upflow bed layer is conical, the top of the upflow bed layer and the top of the connecting pipe are closed, and an intercepting net is arranged between the inner side of the top of the upflow bed layer and the top of the connecting pipe; the top of the reactor shell is provided with a raw material inlet, a recycle oil inlet is arranged between the first downflow bed layer and the partition plate, the bottom of the reactor shell is provided with a product outlet, and the downflow reaction zone is provided with a cold hydrogen inlet.
4. A hydrogenation reactor using a combination of an upflow bed and a downflow bed as in any of claims 1-3 wherein: the downflow beds comprise a first downflow bed and a second downflow bed arranged below the first downflow bed, and the cold hydrogen inlet of the downflow reaction zone is arranged between the first downflow bed and the second downflow bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223074.1U CN214553387U (en) | 2020-12-28 | 2020-12-28 | Hydrogenation reactor using upflow bed and downflow bed in combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223074.1U CN214553387U (en) | 2020-12-28 | 2020-12-28 | Hydrogenation reactor using upflow bed and downflow bed in combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214553387U true CN214553387U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023223074.1U Expired - Fee Related CN214553387U (en) | 2020-12-28 | 2020-12-28 | Hydrogenation reactor using upflow bed and downflow bed in combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214553387U (en) |
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2020
- 2020-12-28 CN CN202023223074.1U patent/CN214553387U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20211102 |